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Flexible Plug and Play Low Carbon Networks Dynamic Line Rating Trial Report


UK Power Networks (Operations) Limited. Registered in England and Wales. Registered No. 3870728. Registered Office: Newington House, 237 Southwark Bridge Road, London, SE1 6NP of 46

Contents Executive Summary ...................................................................................................................................... 4 1. Introduction ............................................................................................................................................. 6

1.1 2.1 Flexible Plug and Play: Background ......................................................................................... 6 1.2 2.2 Flexible Plug and Play: The Trial Zone ..................................................................................... 6 1.3 2.3 Flexible Plug and Play: The Solution ........................................................................................ 7 1.4 Scope of report .............................................................................................................................. 8

2. Dynamic Line Rating – Concept ............................................................................................................... 9 2.1 Background .................................................................................................................................... 9 2.2 Previous work .............................................................................................................................. 10

3. Trial Design and Deployment ................................................................................................................ 12 3.1 Trial Design and Deployment ...................................................................................................... 12 3.2 Site selection and system requirements ..................................................................................... 12 3.2.1 DLR_1a and DLR_1b .................................................................................................................... 13 3.2.2 DLR_2 and DLR_4 ........................................................................................................................ 14

4. Implementation ..................................................................................................................................... 16 4.1 System Configuration .................................................................................................................. 16 4.2 Initial system settings .................................................................................................................. 16 4.3 Installation, Monitoring and Data Collection .............................................................................. 17 4.4 System testing, commissioning and validation ........................................................................... 17 4.4.1 Factory Acceptance Testing ........................................................................................................ 17 4.4.2 Site Acceptance Testing & Commissioning ................................................................................. 18 4.4.3 Three month review .................................................................................................................... 19

5. Analysis .................................................................................................................................................. 23 5.1 Baseline ....................................................................................................................................... 23 5.2 LiDAR Surveys and conductor operating temperature uprating assessment ............................. 23 5.3 Excursion assessment .................................................................................................................. 25 5.4 Optimising the settings for DLR relay .......................................................................................... 28 5.4.1 Ambient Temperature ................................................................................................................. 28 5.4.2 Wind Velocity .............................................................................................................................. 28 5.4.3 Wind Direction ............................................................................................................................ 31 5.5 Optimising the application of DLR systems ................................................................................. 31

6. Trial Outcome ........................................................................................................................................ 36 6.1 Lessons Learnt ............................................................................................................................. 36 6.2 Recommendations ...................................................................................................................... 36

7. Conclusion ............................................................................................................................................. 38 8. References ............................................................................................................................................. 39 9. Appendices ............................................................................................................................................ 40

Appendix 1 Initial DLR relay settings ................................................................................................. 41 Appendix 2 DLR relay settings post March 2014 ............................................................................... 42 Appendix 3 Thermal Rating Report for Circuit 5555, Peterborough Central – Farcet ...................... 43 Appendix 4 Thermal Rating Report for Circuit 5555, Peterborough Central – Bury ......................... 44 Appendix 5 Thermal Rating Report for circuit 3942, March Grid – Chatteris Primary 2 ................... 45 Appendix 6 Recommended DLR relay settings .................................................................................. 46



Definitions, Acronyms and Abbreviations Term DefinitionActive Network Management

Autonomous, software‐based control system that monitors grid conditions and issues instructions to distributed generators or other field devices in order to maintain the distribution network within operating limits.

Ampacity A calculated dynamic conductor capacity for which the maximum conductor operating temperature can be maintained in the environmental conditions at the time of the calculation.

Critical span The critical span is the span of an overhead line most susceptible to issue of clearance and / or exceedance of conductor operating temperature

Data logger The generic term used to describe Alstom Grid’s BiTRONICS M871 monitoring and recording relay.

Dynamic Line Rating (DLR)

System for calculating real‐time ratings of overhead lines based on actual weather data.

Dynamic Line Rating Relay

The generic term used to describe the Alstom Grid Micom P341 relay in which the inputs received from the weather station are processed to provide a near real time ampacity for the Overhead Line under consideration.

Dynamic Line Rating System

The generic term used to describe the complete system including the Alstom Grid Micom P341 relay, Lufft Weather station and digital to analogue converter.

Excursion As defined within ER‐P27 [1], “an excursion is expressed as the percentage of time in any particular season that a continuously loaded circuit may exceed the design temperature”.

Distributed Generation (DG)

Electricity generator connected to the distribution network.

IEC 61850 The International Electro‐technical Committee’s Standard for the design of electrical substation automation.

Light Detection And Ranging Survey (LiDAR)

A survey used to survey high‐voltage overhead line networks to establish system clearances

RS485 A Telecommunications Industry Association/Electronic Industries Alliance (TIA/EIA) standard defining the electrical characteristics of drivers and receivers for use in balanced digital multipoint systems.



Executive Summary

The objective of the Dynamic Line Rating (DLR) trials in the FPP project was to increase the utilisation (where possible) of the existing 33kV overhead lines at a lower cost compared to traditional conductor replacement, and to expedite the development of baseline DLR packages for deployment elsewhere on the network as required. The trial utilised previous experiences from various trials of the weather based DLR systems, focusing on those undertaken within the UK. Particular reference was made to the E.ON Central Networks trial of a weather based DLR system, which was installed on a 132kV circuit from Skegness to Boston [8]. The DLR trial focused on identifying suitable considerations for the design, installation, configuration and management processes associated with the implementation of indirect weather based DLR systems. This was achieved by installing a number of DLR systems across the Flexible Plug and Play area so as to gain an understanding of the installation requirements, typical system architecture and configuration requirements. Four dynamic line rating systems were deployed across the 33kV network within the Flexible Plug and Play trial area. These systems are expected to provide near real‐time ratings for approximately 40km of overhead line, with the smallest section approximately 1km, and the largest section approximately 17.5km. Each of the DLR systems consisted of the following components: • Alstom Micom P341 relay; • Lufft WS501‐UMB weather station complete with a digital to analogue converter; In addition to the core system components, an Alstom BiTRONICS M871 Data Logger was also installed to provide a means of storing the data collected as part of the trial. The main configurable elements of the DLR system revolved around the manipulation of the inputs from the weather station. Initial assumptions, based on recommendations from previous projects, were used to initially configure the system. These were further analysed to validate the approach and to identify opportunities to optimise the system and was achieved by comparing the weather data collected from each of the trial sites to identify the correlation and variance between the datasets. The summary of this comparison is as follows: • The ambient temperature was found to highly correlate across the sites and was only subject to small changes. • For the wind velocity it was found that a 30 minute rolling average for the wind velocity would enable ampacity

comparisons to continue at an appropriate level of precision. However, improvements in the correlation peaked for a 10 minute rolling average.

• For the wind direction, there was a considerable smaller correlation across the site, which justified the approach to applying a fixed wind direction.

Based on this assessment, the final DLR system settings were: • Wind Direction: 20° (with respect to the overhead line) • Solar radiation: 890 W/m2 • Wind Velocity: 10 minute rolling average • Ambient temperature: 1 minute rolling average



The correlation of ambient temperatures across the four sites, and the small changes in magnitude, were such that it was considered appropriate to use the ambient temperature near to real time. The correlation for the wind velocity was also high, although its variability was such that it was deemed an averaging mechanism was needed to smooth out the data. The correlation for both wind direction and solar radiation were such that it was deemed necessary to consider fixed conservative settings. In addition to the system settings, a recommended approach was identified to account for variations in weather conditions across the line. This approach included the installation of multiple weather stations at appropriate intervals along the line under consideration. The ampacity would be calculated at each location, with the values compared within the ANM system. The ANM system would subsequently utilise the smallest ampacity calculated when determining the necessary levels of curtailment of the connected distributed generation. Using this approach there would be no known excursions from the calculated ampacity values, although it should be noted that there is still a risk that this does not fully represent the ampacity across the entire circuit, as such, additional attention should be paid to secluded sections of line. Considering this approach, the average increase in ampacity was found to be 14% higher than the static rating, with the peak increase in ampacity being 47%, when compared to the summer static rating, although it should be noted that this increase was generally limited by the static rating of other equipment installed on the network, a summary of which is contained in Table 1. It should be noted that this additional capacity would exceed that which could be achieved by increasing the operating conductor temperature to 65°C and would mitigate any risks associated with operating the overhead line near its operational capacity.

Average increase in ampacity

(%)

Additional capacity (%)

minimum ampacity 14.0 47Table 1: Summary of additional headroom that could be made available using the minimum calculated ampacity



1. Introduction

1.1 2.1 Flexible Plug and Play: Background

The FPP project funded under Ofgem’s LCNF Second Tier scheme aims to facilitate the acceleration, growth and expansion of DG connections onto the distribution electricity network without the need for conventional network reinforcement. Rather, the approach seeks to achieve this by managing network constraints and maximising network utilisation. The FPP project will do this through the integration of smart devices, smart applications and smart commercial arrangements. The UK Renewable Energy Strategy outlines a clear commitment for an increase in the nation’s use of renewable electricity, with the UK government setting an ambitious target for 30% of the UK’s electricity to be generated from renewable energy sources by 20201. Onshore wind is an identified and proven technology that will be a leading contributor to the achievement of the target and help transition the UK to a low carbon economy. The Department for Energy and Climate Change’s (DECC) latest scenarios project 13GW onshore wind connected to the network by 20202. Currently the UK has more than 5GW of installed onshore wind capacity in operation3. With much of this likely to require connections at the distribution network level, one area of focus that has emerged is the requirement for DNOs to explore innovative commercial and technical solutions to accommodate these volumes of new generation capacity in an accelerated and cost‐efficient manner while at the same time maintaining the reliability of their networks. The FPP project, led by UK Power Networks, addresses this requirement in partnership with 10 project partners: Cable & Wireless Worldwide, Silver Spring Networks, Alstom Grid, Smarter Grid Solutions, GL Garrad Hassan, University of Cambridge, Imperial College London, the Institute of Engineering and Technology, Fundamentals and GE Power Conversion.

1.2 2.2 Flexible Plug and Play: The Trial Zone

The location chosen for the FPP project is an area of UK Power Networks’ Eastern Power Networks Plc (EPN) distribution network that serves approximately 30km diameter (700km²) between Peterborough and Cambridge (the FPP Trial Zone) in the East of England, UK. This area is favourable to DG developers – wind and solar farms in particular – due to geography and weather conditions.

1 The UK Renewable Energy Strategy published July 2009 see the Department of Energy and Climate Change website at:

http://www.decc.gov.uk/assets/decc/What%20we%20do/UK%20energy%20supply/Energy%20mix/Renewable%20energy/Renewable%20Energy%20Strategy/1_2

0090717120647_e_@@_TheUKRenewableEnergyStrategy2009.pdf 2 The UK Renewable Energy Map published July 2011 see the Department of Energy and Climate Change website at: www.decc.gov.uk/assets/decc/11/meeting‐

energy‐demand/renewable‐energy/2167‐uk‐renewable‐energy‐roadmap.pdf 3 July 2012 Figure. Onshore Wind‐Call for Evidence – Part A published 20 September 2012 see http://www.decc.gov.uk/assets/decc/11/consultation/wind/6437‐

onshore‐wind‐call‐for‐evidence‐document‐part‐a‐com.pdf . Data based on analysis from DECC’s Renewable Energy Planning Database (REPD) which tracks renewable developments through the planning system. The REPD database can be found at https://restats.decc.gov.uk/cms/welcome‐to‐the‐restats‐web‐site



Over recent years UK Power Networks has experienced increased activity in DG development in this area, and a rapid rise in connection applications; existing renewable DG connections total 121MW, with 277.45MW of DG capacity currently at various stages of the planning process seeking to connect as at February 2013. Using conventional connection approaches, the connection of this anticipated growth in DG is expected to require significant network reinforcement to manage network thermal and voltage constraints and reverse power flow issues. For this reason, the area between Peterborough and Cambridge serves as an ideal trial area for the FPP project to explore alternative smart connection solutions.

1.3 2.3 Flexible Plug and Play: The Solution

The FPP project is trialling smart connection solutions, in order to facilitate, accelerate and cost optimise the connection and operation of DG in a constrained distribution network. The project is trialling an alternative to the passive ‘fit and forget’ approach based on conventional network reinforcement – one that considers the active management of network constraints and generation export, driving an innovative active ‘fit and flex’ approach that will avoid or defer network reinforcement. The FPP solution will demonstrate this active ‘fit and flex’ approach through the integration of smart devices, smart applications and smart commercial arrangements. Smart Devices: The solution will deploy smart devices from various vendors to address and manage specific existing or anticipated network constraints and operational limitations of the network that either restrict DG connections or are introduced by the connection of DG. The range of smart devices include: dynamic line ratings; active voltage management; a quadrature booster control system; ‘frequent use’ switches; and generation controllers. Smart Applications: A smart application will be installed at UK Power Networks’ control centre at Fore Hamlet, Ipswich, providing an Active Network Management (ANM) solution to monitor real time network parameters by the smart devices. The ANM will also manage the generators’ output using the generation controllers, which will allow the DG export to track the real‐time export capacity available within the real‐time constraints on the distribution network. The ANM will perform these functions while ensuring that the distribution network maintains its reliability and performs within operational limits. Smart Commercial Arrangements: As generators’ export will be actively managed (i.e. their output will be regulated to meet distribution network constraints), new commercial and connection arrangements will be established that define access to the distribution network capacity available in real time. This will be in the form of a ‘non‐firm’ or so‐called ‘interruptible’ connection agreement, first examples of which have been issued by the FPP project to a number of generators in March 2013. In order to successfully integrate the smart devices and applications, the FPP project has deployed an IP‐ based communications infrastructure that will make use of the latest developments in smart grid open standards, such as IEC 61850. The IP‐based communications infrastructure establishes data connectivity both within and between substations using IEC 61850 to fully coordinate and leverage the benefits of the smart devices, and smart applications. The requirement



for the range of smart devices to be compliant with IEC 61850 addresses the challenges associated with interoperability. Additionally the IP‐based communications infrastructure will facilitate the data exchange and control capability of ANM using IEC 61850 to implement the technical and commercial solutions in real time to manage network constraints. This will allow for the distribution network to accept increased levels of DG overall. Therefore, the FPP solution will demonstrate how, through alternative connection solutions, accelerated and cost‐effective connection of DG to a distribution network can be achieved.

1.4 Scope of report

This report looks to provide evidence to demonstrate the successful completion of the learning objectives for the Dynamic Line Rating trial. These learning objectives are evidenced by the successful completion of the trial design and subsequent evidence provided in this report. The report is structured as follows:

Section 2. Outlines the Dynamic Line Rating concept as trialled by UK Power Networks

Section 3. Provides an overview of the Dynamic Line Rating trial design and deployment.

Section 4. Outlines the activities associated with implementing the Dynamic Line Rating system, including its configuration and the validation of the system.

Section 5. Provides a summary of the analysis undertaken as part of the trial.

Section 6. Summarises the key learning obtained following the deployment of the Dynamic Line Rating systems along with recommendations for future deployments.

Section 7. Concludes the report.



2. Dynamic Line Rating – Concept

2.1 Background

Distribution Network Operators within the UK apply seasonal ratings to overhead lines in accordance with Energy Networks Association’s (ENA) Engineering Recommendation P27: “Current Rating Guide for High Voltage Overhead Lines Operating in the UK Distribution System” (ER‐P27) [1]. The ratings contained within ER‐P27 were inferred from a detailed evaluation of a single conductor undertaken as part of the CERL report RD/L/N 129/79. Based on this evaluation, the ENA subsequently produced the ACE Report No. 104, which considered the findings from the CERL report as being representative of all conductor types at all Distribution levels [2]. The seasonal ratings provided as part of ER‐P27 are derived from assumed worst case environmental conditions detailed as follows: ambient temperature for each season: Summer 20oC, Spring/Autumn 9oC, Winter 2oC wind speed: 0.5 m/s solar radiation 0 W/m2 The ratings are then further refined for the three different modes of operation categorised as single circuit radial systems, secondary distribution ring circuits and multi‐circuit primary supply systems and for each define the expected excursion times from these ratings, as follows: 0.001% excursion time for single circuit radial systems and secondary distribution ring circuits 3% excursion time for multi‐circuit primary supply systems To maintain the above excursion times, the ratings for single circuit radial systems and secondary distribution ring circuits are naturally lower than multi‐circuit primary systems. DLR makes use of the concept that the weather conditions, which govern the rating of the conductor, continuously vary and are less conservative than the assumed worst case conditions used in ER‐P27. Instead of applying these fixed seasonal ratings, load management based on dynamically derived line ratings can be used to consider the real time environmental conditions. This is particularly beneficial for enabling greater penetrations of wind generation as the output of the distributed generation will coincide with greater cooling of the conductor and potentially more capacity on the lines. The application of DLR and active network management would therefore allow Distributed Generation to match available network capacity. The benefits associated with the use of DLR are widely recognised and have been summarised: Improved utilisation of existing network assets Cost‐effective connection of distributed generation – defer future traditional reinforcement costs and improve

company reputation A number of different DLR systems are available, although these can be largely categorised as either employing direct4 or indirect measurements. Direct measurements involve some form of physical connection to the conductor

4 For clarity, DLR systems that utilise direct measurements often also include additional inputs from separate indirect measurements.



and may include measurements such as conductor temperature, tension monitors, vibration sensors, etc. Conversely, indirect measurements require no physical connection to the conductor and include measurements of the environmental conditions. Based on an evaluation of these measurements the DLR system will determine the maximum conductor capacity for which the maximum conductor operating temperature can be maintained. This variable capacity is known as the conductor Ampacity. Whilst less accurate, indirect weather based systems offer a DLR solution that can be rapidly deployed throughout the network with no impact on the existing infrastructure. They can also be deployed at locations where the provision of communications and small power, necessary for their operation and integration into a wider active network management system, can be more easily accommodated at lower cost than a direct DLR system. Indirect DLR therefore offers the best short term opportunity for utilising DLR. There are a number of mathematical models that can be used to calculate the ampacity based on weather parameters, with the two most widely used methods described as IEEE 738 and CIGRE 207. Both models apply a heat balancing equation, assuming that no heat is stored in the conductor, and the conductor heat gain is equal to the heat lost. The conductor temperature is subsequently dependant on the load current, the electrical characteristics of the conductor and the environmental conditions. The Flexible Plug and Play trial of DLR focused on the application of an indirect DLR system, so as to provide an understanding of the requirements associated with the design, installation, configuration and management processes of such a system. The Flexible Plug and Play project also further demonstrated the interoperability of DLR technologies with other smart devices/applications in the active management of an area of the 33kV distribution network which serves many different embedded generation schemes.

2.2 Previous work

DLR is a mature technology which has been trialled under various different projects throughout the world. A summary of two notable projects within the UK, both of which focussed on the delivery of indirect weather based systems, has been provided below. Skegness – Boston 132kV overhead line by E.ON Central Networks in north east of England

E.ON Central Networks trialled the use of a weather based (i.e. indirect) DLR system, incorporating the CIGRE model (CIGRE 207) for determining the conductor temperature on a 132kV overhead line between Skegness and Boston [1]. In this trial, the CIGRE model was used to calculate the conductor temperature based on the measurement of load current and weather conditions, namely the wind velocity and ambient temperature. This calculated conductor temperature was compared against the measured conductor temperature, determined using sensor connected to the conductor. The report concluded that, with 1 minute samples for the weather parameters, the discrepancy between the calculated and measured conductor temperature was between ‐2 to 2°C for 99.4% of the time, and between ‐1 to 1°C for 88.3% of the time. Furthermore, the report concluded that the model could be configured to provide some degree of margin by including a default solar radiation of 890W/m2 and a fixed wind direction of 20°. For these conditions, the calculated conductor temperature was found to be between 3.4°C and 11.1°C higher than the measured conductor temperature. However, it was noted that there could be significant differences in ampacity between two separate



systems which, in this case, were 40km apart. The report identified two possible solutions to mitigate this risk as follows: Use the “worst weather” conditions, which is the highest temperature and lowest wind from the two locations Take the minimum of the ampacities calculated from weather conditions at the two locations Dynamic Monitoring of Overhead Line Ratings in Wind Intensive Areas

Northern Ireland transmission also trialled a weather based DLR system which utilised the CIGRE 207 model as part of their “Dynamic Monitoring of Overhead Line Ratings in Wind Intensive Areas” project [4]. Northern Island Transmission also looked to assess the validity of the CIGRE model using a similar approach to E.ON Central Networks. As in the E.ON Central Networks project outlined above, this project demonstrated the ability of the CIGRE model to satisfactorily predict the conductor temperature from known weather and current data.



3. Trial Design and Deployment

3.1 Trial Design and Deployment

The DLR trial focused on identifying suitable considerations for the design, installation, configuration and management processes associated with the implementation of indirect DLR systems. This was achieved by installing a number of DLR systems across the Flexible Plug and Play area and make an assessment from the data generated by the trials, with the aim of obtaining a greater appreciation of the mathematical models used to calculate the ampacity and how the calculated ampacity may be affected by variations in weather at different areas across the network. Following a comprehensive trial design and development procedure, three main trial hypotheses were identified: Hypothesis 001: The design of Flexible Plug and Play DLR system, including weather station locations and

averaging mechanism, provides a reliable ampacity value Hypothesis 002: The dynamic line rating system can be optimised to improve the accuracy of Ampacity

calculation Hypothesis 003: The Dynamic Line Rating system provides additional headroom on overhead lines throughout all

seasons (to facilitate distributed generation connections) A suitable approach for testing each hypothesis was identified, and forms the basis of the analysis section contained within this report.

3.2 Site selection and system requirements

Figure 1: Sections of Overhead line on which the Dynamic Line Rating system has been trialled

Four dynamic line rating systems were deployed across the 33kV network within the Flexible Plug and Play trial area. These systems are expected to provide near real‐time ratings for approximately 40km of overhead line, with the smallest section approximately 1km, and the largest section approximately 17.5km. The four sections of overhead line are illustrated in Figure 1 and were selected during the design feasibility stage of the project based on the



expected uptake of distributed generation and any potential limitations that could be imposed by the capacity of the existing overhead lines. The following subsections provide a more detailed overview of the each section of line, including the constraints that exist on each line.

3.2.1 DLR_1a and DLR_1b

The first line considered was the 33kV circuit between Peterborough Central and Bury Primary. A schematic for this circuit is illustrated in Figure 2 which, for clarity, are coloured turquoise and blue in Figure 1.

Figure 2: DLR_1a and DLR_1b ‐ Bury to Peterborough Central 33 kV Circuit



Overall, the circuit is approximately 20.7 km long and consists of various conductor and underground cable segments with the following ratings: 2.2 km of 630AL single core cables rated 38MW 1.1 km of 150 ACSR (Wolf) conductor rated 19 MW (which is the summer rating for a “Wolf” conductor taken from ER‐P27 for a single circuit radial systems operating temperature to be 50°C) 17.4 km of 200 ACSR (Jaguar) conductor rated 23 MW (which is the summer rating for a “Jaguar” conductor taken from ER‐P27 for a single circuit radial system operating temperature at 50°C) The circuit supports 26MW of existing connected distributed generation. When considering the distributed generation only, both sections of the circuit are at risk of overload. For the 200 ACSR conductor between Farcet Primary and Bury Primary, this risk mainly occurs during the summer period when using seasonal ratings. Whilst this risk appears to be significantly larger for the smaller 150 ACSR section between Facet Primary and Peterborough Central, this is mitigated by the minimum demand of the take‐off at Farcet Primary (approximately 4MW). The risk of overload meant that there was an immediate requirement for two DLR schemes: one for each section of the overhead line due to the variable nature of the load on the Farcet Primary bus section. It should be noted that the relay used can only provide one ampacity output so that two DLR relays were required here. These two DLR systems provide suitable dynamic ratings for overhead lines illustrated in Figure 1 in blue (DLR_1a) and light blue (DLR1b). The other consideration with the quantity and location for the deployment of the DLR system was on the length of the circuit that would be expected to provide suitable coverage. Whilst the 200ASCR conductor is approximately 17.5km in length, it should be noted that the DLR system installed at Farcet Primary need only be accurate up to approximately 10km, as this is the distance to the nearest large generator of 16MW after which the load on the network will be significantly reduced.

3.2.2 DLR_2 and DLR_4

The second line considered was the 33kV circuit between March Grid GT2 and Funtham’s Lane Primary T2. A schematic for this circuit is illustrated in Figure 3 which, for clarity, are coloured orange and red in Figure 1.



Figure 3: DLR_2 and DLR 4 – March Grid Tee Chatteris T2 to Funtham’s Lane T2 33 kV OHL

Overall, the circuit is approximately 19.2 km long and consists of various conductor and underground cable segments with the following ratings: 13.1km of 100SCA conductor rated 14 MW (which is the summer rating for a “Dog” conductor taken from ER‐P27 for a single circuit radial system operating temperature at 50°C) 6.1 km x 200SCA conductor rated 23 MW (which is the summer rating for a “Jaguar” conductor taken from ER‐P27 for a single circuit radial system operating temperature at 50°C) The circuit supports 30.5MW of existing connected and planned distributed generation although the expected load flows are such that neither section of overhead lines exceed their seasonal ratings. The circuit can be easily segregated at Chatteris, where the conductor types change. The first DLR system, DLR_2, would be installed at Funtham’s Lane and would be configured to provide ampacity ratings for the 100ASCR conductor, which runs from Funtham’s Lane to Chatteris Primary, whilst the second would be configured to provide ampacity ratings for the 200ASCR conductor, which runs from March Grid to Chatteris Primary. These two DLR systems provide suitable dynamic ratings for overhead lines illustrated in Figure 1 in orange (DLR_2) and red (DLR_4).



4. Implementation

4.1 System Configuration

A standard system architecture for the Dynamic Line Rating system has been deployed for each of the four installations. Each of the systems deployed consists of: Lufft WS501‐UMB weather station complete with a digital to analogue converter an Alstom Micom P341 relay, which contains the Dynamic Line Rating (CIGRE/IEEE) mathematical models an Alstom BiTRONICS M871 Data Logger. The system interfaces are described within Table 2.

From To Communication Protocol

Data transferred

Weather Station

Digital to analogue converter

RS485 Ambient Temperature Wind Velocity Wind Direction Solar Radiation

DACON unit Dynamic Line Rating Relay

4 – 20mA Ambient Temperature Wind Velocity Wind Direction

DACON unit Data logger 4 – 20mA Ambient Temperature Wind Velocity Wind Direction

P341 Data logger 4 – 20mA AmpacityP341 Telecommunications

equipment cabinet IEC 61850 Ampacity

Ambient Temperature Wind Velocity Wind Direction

Table 2: DLR system interface

4.2 Initial system settings

A comprehensive list of the initial settings configured within the four DLR relays is contained within Appendix 1, a summary of which is provided in Table 3. It should be noted that these settings were chosen so as to introduce the smallest difference between the DLR relay ampacities and the static ratings provided within ER‐P27, with the only significant changes with the use of near real time measurements of the ambient temperature and wind velocity.

DLR_1a DLR_1b DLR_2 DLR_4 Conductor type Jaguar Wolf Dog Jaguar Ambient Temperature DynamicAmbient temperature averaging 1 minuteWind velocity DynamicWind velocity averaging 10 minute rolling average



Wind direction 0° (with respect to the overhead line) Solar radiation 0 W/m2

Table 3: Initial DLR settings summary

4.3 Installation, Monitoring and Data Collection

The DLR systems were installed at UK Power Networks owned substations, to enable the provision of small power and to enable a suitable interface into UK Power networks SCADA system, from which the active network management system can interface with the system. The weather stations were installed at a similar height to the overhead lines so as to best represent the weather conditions at the overhead lines. The DLR systems were installed at the following UK Power Networks substations DLR_1a: Farcet Primary DLR_1b: Farcet Primary DLR_2: Funtham’s Lane DLR_4: March Grid Data loggers have been included as part of the system architecture to enable the ampacity and weather information collected as part of the trial to be stored and made accessible for further assessment. This data stored includes: One minute averages for the wind direction One minute averages for the wind velocity One minute averages for the ambient temperature One minute averages for the ampacity generated by the DLR relay

4.4 System testing, commissioning and validation

The DLR systems underwent a series of testing, commissioning and validation prior to the trial assessment. A summary of the process is summarised in the following subsections.

4.4.1 Factory Acceptance Testing

Weather Sensors

The weather stations used are standalone commercial products, and were assumed to operate within specification DLR System (P341)

• Weather Inputs The weather sensors used on the system interface to the DLR relay using 4‐20mA. As such, a calibrated current source was used to simulate each weather input in turn. The readings displayed on the DLR Relay were checked to confirm that they matched the expected values. • Default values



The DLR Relay is programmed to use default values in the event of a loss of input data or in the event that the input data falls outside of appropriate thresholds. The default values were verified by changing the simulated weather input data to exceed the thresholds and confirm that the system reverted to the default value. • Alarms and Indications The DLR Relay is programmed to generate alarm and indications for certain operating scenarios. These were verified using the calibrated current source as necessary. • Ampacity algorithm A series of simulated weather inputs were generated using the calibrated current source to enable Ampacity values to be generated by the DLR Relay. The results obtained were then compared to the expected ampacities obtained using Alstom’s Calculator DLR V3.1 by applying the same criteria. This successfully showed that the DLR Relay produced results consistent for a variety of differing weather conditions.

4.4.2 Site Acceptance Testing & Commissioning

Weather station inputs

The digital to analogue converter unit settings, including scaling factors and inputs / Output’s, were verified against design parameters. The Weather station inputs were measured directly and via the digital to analogue unit to confirm that the weather station was generating data. Note that it was not possible to measure outputs from the digital to analogue converter unit and the weather station simultaneously. Also, no tests were undertaken to confirm the validity of the data generated by the weather station. Instead, checks were undertaken to confirm that the weather station was installed in accordance with the manufacturer’s instructions and by visual inspection of the factory calibration certificate. Dynamic Line Rating System

• Weather inputs & recorded Ampacity values The readings of weather information displayed on the DLR Relay were checked against those being sent to the Data logger directly from the digital to analogue converter to check consistency. Note that the rate of sampling varies between devices. As a result of this, the information recorded differed slightly. • Settings The settings within the DLR relay were verified against those specified during the design stage. • Ampacity calculation Ampacity values are generated based on 10min rolling averages of the weather data. As such, to verify the ampacity values generated by the P341, weather data was recorded from the DLR Relay over a period of approximately 10 minutes. This data was averaged and used within Alstom’s off‐line Calculator DLR V3.1 to determine the expected ampacity value. The two ampacity values were compared to check consistency.



4.4.3 Three month review

Data was collected from the data logger for each site after a period of approximately three months, as follows: DLR_1a 12/09/2013 00:00 – 11/12/2013 10:00 DLR_1b 12/09/2013 00:00 – 11/12/2013 10:00 DLR_2: 12/09/2013 00:00 – 11/12/2013 10:00 DLR_4: 12/09/2013 00:00 – 11/12/2013 10:00 This data was analysed to confirm there were no obvious issues with data collection, that the results align with initial expectations and to enable a more comprehensive review of the calculation. A more comprehensive overview of this review, which was undertaken for both the weather data collected and the ampacities calculated, has been summarised below: Weather data

The weather data was compared against averaged weather data from three Met Office Weather stations to confirm that their output align with those of the MET office weather stations. The test included the calculation of the Pearson’s correlation coefficient for weather stations and the average of the MET office Weather stations, so as to prove correlation between the weather stations. Correlation is said to be achieved as the Pearson’s correlation coefficient tends towards unity Figure 4 provides an illustration of the location of the MET office weather stations with respect to those installed as

part of the DLR trial. The three MET office weather stations chosen enclose the trial area and, therefore, should be

reflective of the weather conditions in the area

Figure 4: Location of DLR systems and weather stations under comparison

DLR 4DLR 2

DLR 1a & 1b

Marham Wittering

Monkswood



. The Pearson’s correlation coefficients for the Ambient temperature and the Wind Velocity have been summarised in Table 4 and Table 5 respectively.

Marham Monkswood Wittering Average March Grid 0.9755 0.9787 0.9825 0.9889 Funthams Lane 0.9690 0.9792 0.9836 0.9870 Farcet 1a 0.9672 0.9810 0.9883 0.9885 Farcet 1b 0.9760 0.9811 0.9884 0.9884

Table 4: Pearson’s correlation coefficient – Ambient Temperature

Marham Monkswood Wittering Average March Grid 0.8509 0.8493 0.8306 0.9144 Funtham’s Lane 0.8304 0.6357 0.8181 0.8408 Farcet 1a 0.7990 0.6323 0.7636 0.8044 Farcet 1b 0.7877 0.6117 0.7552 0.7905

Table 5: Pearson’s correlation coefficient – Wind Velocity (Hourly) Based on this analysis it was concluded that the ambient temperatures recorded from the trial devices strongly correlated with those supplied from local MET office weather stations and are therefore likely to be accurate. Considering the variability of wind velocity, it could be considered that the recorded data has reasonable correlation with the MET office weather stations, although the correlation is not sufficient to conclusively confirm that the weather stations have the correct output. This variance is considered further as part of the trial analysis in the following section. Ampacity

The initial sample of ampacities calculated by the DLR relay were compared against the seasonal ratings for the circuits to provide an initial indication of the additional capacity that could be made available using the DLR system. The results of this study are shown in Table 6.

Average (%)

Standard Deviation (%)

Minimum(%)

Maximum(%)

DLR_1a 19 21 ‐16 98 DLR_1b 17 20 ‐18 95 DLR_2 23 21 ‐39 108 DLR_4 12 17 ‐29 67

Table 6: Initial results from ampacity vs static rating for three month review Whilst the maximum available uplift was significantly greater than the seasonal rating, the minimum difference was not expected to be lower than 0.001%, as per ACE 104. This was subsequently investigated further, the results of which are summarised in section 5.3.



Following this initial review, and our greater understanding of the system, the decision was made to alter the settings of the DLR relay so as to increase the default wind direction to 20° and to balance this with a default solar radiation of 890 W/m2. These settings align with the recommendations generated from the E.ON Central networks trial [3]. It was thought that these settings would be slightly less conservative and, therefore, improve the average uplift and decrease the level of excursion below the static rating. These alterations were made in March 2014, with the copy of the revised settings included at Appendix 2.

Figure 5: Sample comparison of ampacity vs static rating

To further verify the ampacity values generated by the DLR Relay, an external party was contracted to develop a means of implementing the CIGRE 207 model within a software package that could be used to retrospectively calculate the ampacity, based on the recorded weather parameters. This model was taken directly from the CIGRE 207 standard, so as to provide a further means of validating that the DLR relay used was implementing the CIGRE calculation correctly. A sample of the comparison between the calculated ampacity and that obtained from the DLR relay is shown in Figure 6.



Figure 6: Sample of DLR Relay Ampacity vs Calculated Ampacity

The sample illustrates that the ampacity was calculated to within approximately 2% of that determined using the relay, which was consistent for the whole period analysed. On further investigation, the small difference was thought to be introduced due to the different sampling rates used by the data logger and the DLR relay.



5. Analysis

5.1 Baseline

The baseline for comparison of the trial results is the seasonal circuit ratings for each of the conductors under analysis. As the focus of the report is to support the connection of distributed generation at 33kV, which are designed as single circuit radial systems with operating temperature of 50°C, the seasonal ratings taken from ER‐P27, for the relevant circuit types are summarised in Table 7.

Conductor type

Spring Summer Autumn Winter

DLR_1a Jaguar 472 408 472 508 DLR_1b Wolf 401 346 401 431 DLR_2 Dog 290 253 290 311 DLR_4 Jaguar 472 408 472 508

Table 7: Summary of seasonal ratings For clarity, the seasonal static ratings have been applied for the periods defined in Table 8.

Season Start Month End Month

Winter 12 2

Spring 3 4

Summer 5 8

Autumn 9 11 Table 8: Seasons periods

5.2 LiDAR Surveys and conductor operating temperature uprating assessment

In parallel to the deployment of the DLR systems, UK Power Networks commissioned Network Mapping Ltd to undertake a number of aerial LiDAR surveys on overhead line circuits within Distribution Network Operator areas EPN and SPN in 2013. This work included the four circuits on which the DLR system was being trialled. Using this information, together with load data for the circuits at the time of the survey, an analysis was performed by Mott McDonald, on behalf of UK Power Networks, to determine clearances to ground and undercrossing wires, based on the requirements of ENA Technical Specification 43‐8 [6]. The objective of this analysis was to determine opportunities for uprating the conductor operating temperature above the design temperature of 50°C. The assessments included:

The identification of any infringements that would occur should the conductor operating temperature be uprated to 75°C

The maximum conductor operating temperature that could be achieved without infringement Recommendations for corrective actions necessary to remove the identified infringements



From the report produced for the Bury Primary to Farcet 33kV circuit (referred to as DLR _1a in this paper) there were only three infringements identified that would prevent the conductor operating temperature being uprated to 75°C; these results are summarised in Appendix 3. The recommendations for resolving these infringements included increasing the height of four wood poles by between 0.5m and 1.5m. The maximum conductor operating temperature of the circuit, without undertaking remedial activities, was identified to be limited to 55°C, at one location, with the other two infringements occurring at 69°C and 74°C. From the report produced for the Peterborough central to Farcet 33kV circuit (referred to as DLR_1b in this paper), the clearances were found to be sufficient to support uprating the conductor operating temperature to 75°C; these results are summarised in Appendix 4. From the report produced for the March Grid to Chatteris 2 33kV circuit (including both DLR _2 and DLR_4 in this paper) there were only four infringements on ground clearances that would prevent the conductor operating temperature being uprated to 75°C. However, there are multiple “blow‐out” infringements which would prevent the uprating of the conductor temperature above 50°C. These results are summarised in Appendix 5. It should be noted that the study investigated the opportunity based on the current design of the installation and the requirement to maintain clearances alone. No consideration was taken of the physical installation, including any limitations on the materials and / or construction methods employed at the time of installation, which may present a further barrier to uprating conductor operating temperatures. One known limitation for all of the circuits on which the DLR system has been deployed exists due to the age of the conductors, which were all installed pre 1975. This limits the maximum conductor operating temperature to 65°C, above which there is a risk that the conductor grease will migrate exposing the conductor to an increased corrosion risk. As such, assuming that the recommendations were complete, the seasonal ratings could be uprated to those detailed in Table 9

Conductor type

Spring Summer Autumn Winter

DLR_1a Jaguar 544 493 544 574 DLR_1b Wolf 462 418 462 488 DLR_2 Dog 332 302 332 350 DLR_4 Jaguar 544 493 544 574

Table 9: Summary of seasonal ratings for conductor operating temperature of 65°C



5.3 Excursion assessment

During the data validation exercise, as described in section 4.4.3, it was noted that the ampacity generated by the DLR system, with the settings configured as per Appendix 1, were below the ER‐P27 seasonal static rating for long periods. This was unexpected as the settings were thought to be similar to those used to determine the seasonal static ratings defined in ER‐P27 for single circuit radial systems, for which there is expected to be 0.001% excursion time. As such, a further assessment was undertaken to evaluate and compare the results obtained from the trial to those described in ER‐P27. Following a more detailed review of the supporting documentation associated with ER‐P27, including ACE 104, a number of key differences between the two approaches were identified, which are summarised in Table 10.

ER‐P27 CIGRE 207 Emissivity 0.9 0.5 Wind speed (m/s) Fixed at 0.5 User defined

Ambient temperature (°C)

Spring: 9Summer: 20 Autumn: 9 Winter: 2

User defined

Solar Radiation (W/m2) 0 User defined Wind Direction (° with respect to the Overhead Line) 12 User defined Correction factor 0.912 None

Table 10: The key differences between ER‐P27 and CIGRE 207 To compare the two approaches on a like for like basis, and to identify the magnitude of difference between the CIGRE calculation and ER‐P27, the CIGRE algorithm was used to calculate the ampacity for a “Jaguar” type conductor using the same design parameters used to obtain the ER‐P27 static ratings, as described in Table 10. These were then compared to the uncorrected ER‐P27 static ratings, the results of which are summarised in Table 11.

Uncorrected ER‐P27

CIGRE Difference

Spring 517 501 3.3%Summer 447 433 3.3%Autumn 517 501 3.3%Winter 557 540 3.1%

Table 11: Comparison of the output the CIGRE 207 algorithm on a like for like basis to ER‐P27 It can be seen that ER‐P27 is approximately 3% higher than that calculated using the CIGRE 207 algorithm, although it should be noted that there is a difference with the approach used to calculate the core temperature of the conductor based on the determined surface temperature of the conductor, which may account for this difference obtained, although this was not verified as part of this assessment. Given that the 3% difference is consistent across the four seasons, it has been assumed that the CIGRE 207 algorithm can be used to provide an approximation of the rating that would be obtained using the heat balancing equations,



and parameters, used to determine the ER‐P27 static ratings. As such, to evaluate the expected level of excursions identified as part of the Flexible Plug and Play trial, the CIGRE 207 algorithm has been used to determine a minute by minute ampacity from an annual set of recorded weather data, using parameters similar to those used to determine the ER‐P27 static ratings, as summarised in Table 12.

Conductor type Jaguar Ambient Temperature DynamicEmissivity 0.9Ambient temperature averaging 1 minuteWind velocity DynamicWind velocity averaging 1 minuteWind direction 12° (with respect to the overhead line) Solar radiation 0 W/m2

Correction factor 1.03Table 12: DLR settings summary for excursion assessment

A sample lot of the calculated ampacity is illustrated in Figure 7.

Figure 7: Sample plot of calculated ampacity based on parameters used for ER‐P27

A summary of the levels of excursion is contained in Table 13.



Duration of excursions (mins)

Duration of excursions

(%)

Jan 5 0.01%Feb 44 0.11%Mar 94 0.21%Apr 347 0.80%May 1168 2.62%Jun 53 0.12%Jul 233 0.52%Aug 46 0.10%Sep 3505 8.11%Oct 572 1.28%Nov 0 0.00%Dec 236 0.53%Total 6303 1.20%

Table 13: Calculated levels of excursion From Table 13, it can be seen that the levels of excursion are significantly higher than the 0.001% defined as part of ACE 104, although it should be noted that ER‐P27 defines an excursion where the loading is such that the design temperature of the conductor could be exceeded for a successive six minute period. The six minute threshold has not been considered as part of the assessment and, as such, the periods of excursion summarised in Table 13 are greater than under a strict application of ER‐P27. Applying this stricter application, there are total of 178 excursions, of which the greatest duration is 48 minutes. This is still significantly higher than expected and, as such, it can be concluded that the static ratings used are not reflective of the actual seasonal ratings. Upon further investigation, these results align with those published as part of similar projects, including those undertaken by Northern Ireland Electricity for their “Dynamic Monitoring of Overhead Line Ratings in Wind Intensive Areas” project [4] and Mott McDonalds report on “UK Power Networks: 132kV Pelham – Wymondley Overhead Line Uprating Proposal” [5]. In both reports it was identified that the levels of excursion from the present ratings are far higher than expected. However, it has been noted it is unlikely that this has led to frequent conductor over‐temperature situations because the actual load shape is rarely, if ever, such that the peak circuit load occurs during periods when the ambient temperature is high and the wind speed is low. At present, for both single circuit radial systems and secondary distribution ring circuits, ER‐P27 does not make any consideration of the load profile, assuming instead that the circuit should be capable of continuously supplying the maximum load. Based on the results of this assessment, and others provided as part of separate reports, it is clear there is a requirement to review the approach considered as part of ER‐P27 and the seasonal static ratings applied to overhead‐line circuits. Of particular note are the months of May and September, which are considered as part of the Spring and Autumn periods respectively. The levels of excursion during these periods are by far the greatest and suggest that the summer seasonal could be extended to include these periods.



5.4 Optimising the settings for DLR relay

The output from the indirect DLR system is predominantly based on conductor characteristics and inputs from the associated weather station. The DLR systems were initially configured using recommendations from previous projects, and these settings were further analysed to validate the approach and to identify opportunities to further optimise the system. To achieve this, the data from the four weather stations has been analysed to identify the correlation between local and remote weather conditions. Each data set comprises of 525,600 time‐series recordings at 1‐minute intervals and has been loaded in the R statistical analysis software so as to complete the following analysis: • Correlation between weather recordings at sites that are remote from each other. • Correlation between weather recordings which are averaged/filtered over 5, 10, 20 or 30‐minute intervals. Ideally, the weather data used in a DLR system will be as near to real‐time as possible, although consideration is given to constraints that may be imposed on control systems, and the capability of controlled systems to accommodate frequent changes in ampacity values. The results of the analysis are contained the following subsections

5.4.1 Ambient Temperature

March

GridFuntham’sLane

Farcet

March Grid

1.00 0.98 0.97

Funtham’s Lane

0.98 1.00 0.99

Farcet 0.97 0.99 1.00Table 14: Pearson’s correlation coefficients for 1 minute average ambient temperatures

As expected, the ambient temperature was found to highly correlate across the sites and was only subject to small changes. As such, no averaging was considered.

5.4.2 Wind Velocity

March Grid Funthams Lane

Farcet

March Grid 1.00 0.72 0.77

Funtham’s Lane 0.72 1.00 0.72

Farcet 0.77 0.72 1.00

Table 15: Pearson’s correlation coefficients for 1 minute average wind velocities



The 1 minute averaged wind velocities across the three sites had some degree of correlation, although all were subject to much larger variances than observed for ambient temperature. As such, the data was further averaged at 5, 10, 20 and 30 minute rolling averages to assess whether there were improvements in the correlation of the wind speed and a reduction in the variances across the sites. The results of this analysis are contained within Table 16 to Table 19.

March Grid

Funtham’sLane

Farcet March Grid

Funtham’s Lane

Farcet

1m average 5m rolling average

March Grid

1m average

1.00 0.72 0.77 0.97 0.74 0.80

Funtham’s Lane

0.72 1.00 0.72 0.74 0.97 0.74

Farcet 0.77 0.72 1.00 0.80 0.73 0.97

March Grid

5m rolling average

0.97 0.74 0.80 1.00 0.76 0.82

Funtham’s Lane

0.74 0.97 0.74 0.76 1.00 0.75

Farcet 0.80 0.73 0.97 0.82 0.75 1.00

Table 16: Pearson’s correlation coefficients 5 minute rolling averages of wind velocity

March Grid

Funtham’sLane

Farcet March Grid

Funtham’s Lane

Farcet


March Grid

1m average

1.00 0.72 0.77 0.96 0.75 0.80

Funtham’s Lane

0.72 1.00 0.72 0.75 0.96 0.74

Farcet 0.77 0.72 1.00 0.80 0.74 0.96

March Grid

10m rolling average

0.96 0.75 0.80 1.00 0.77 0.83

Funtham’s Lane

0.75 0.96 0.74 0.77 1.00 0.77

Farcet 0.80 0.74 0.96 0.83 0.77 1.00

Table 17: Pearson’s correlation coefficients for 10 minute rolling averages of wind velocity



March Grid

Funtham’sLane

Farcet March Grid

Funtham’s Lane

Farcet


March Grid

1m average

1.00 0.72 0.77 0.95 0.75 0.81

Funtham’s Lane

0.72 1.00 0.72 0.75 0.95 0.74

Farcet 0.77 0.72 1.00 0.81 0.74 0.95

March Grid

20m rolling average

0.95 0.75 0.81 1.00 0.78 0.84

Funtham’s Lane

0.75 0.95 0.74 0.78 1.00 0.78

Farcet 0.81 0.74 0.95 0.84 0.78 1.00

Table 18: Pearson’s correlation coefficients for 20 minute rolling averages of wind velocity

March Grid

Funtham’sLane

Farcet March Grid

Funtham’s Lane

Farcet


March Grid

1m average

1.00 0.72 0.77 0.95 0.75 0.81

Funtham’s Lane

0.72 1.00 0.72 0.76 0.94 0.74

Farcet 0.77 0.72 1.00 0.81 0.75 0.94

March Grid

30m rolling average

0.95 0.75 0.81 1.00 0.79 0.85

Funtham’s Lane

0.76 0.94 0.74 0.79 1.00 0.78

Farcet 0.81 0.75 0.94 0.85 0.78 1.00

Table 19: Pearson’s correlation coefficients for 30 minute rolling averages of wind velocity The above results indicate that a 30 minute rolling average of the wind velocity data will enable ampacity comparisons to continue at an appropriate level of precision. However, the correlation coefficients peak for 10 minute rolling averages and validate the initial assumption that a 10 minute rolling averaged wind velocity provides an adequate representation of the wind velocity across an area.



5.4.3 Wind Direction

Any approach to wind direction will be subject to the overhead line route and other topographic factors. The initial assumption was to consider a default wind direction, predominantly due to the potential for the overhead line to have multiple orientations.

March Grid

Funtham’sLane

Farcet March Grid

Funtham’s Lane

Farcet


March Grid

1m average

1.00 0.43 0.43 0.95 0.45 0.45

Funtham’s Lane

0.43 1.00 0.70 0.45 0.95 0.74

Farcet 0.43 0.70 1.00 0.45 0.73 0.93

March Grid

5m rolling average

0.95 0.45 0.45 1.00 0.47 0.48

Funtham’s Lane

0.45 0.95 0.73 0.47 1.00 0.78

Farcet 0.45 0.74 0.93 0.48 0.78 1.00

Table 20: Pearson’s correlation coefficients 5 minute rolling averages of wind direction The Pearson’s coefficients of 0.43 confirm the variability in wind direction at each weather station. This aligns with the initial expectations and validates the approach to applying a fixed wind direction.

5.5 Optimising the application of DLR systems

Some degree of caution is already inherent in the configuration of the DLR system following the optimisation of the DLR settings. The averaging of the wind velocity has previously been noted to reduce variances in the weather conditions, whilst the default values used for both the wind direction and solar radiation are both considered as worst case. There is still a risk, however, that the ampacity calculated at a single location will not be representative of the whole line under consideration. This is of particular importance for instances where distributed generation (or any controllable loads) will be connected to the distribution network via an ANM system, as it is quite possible that the conductor currents will match the ampacity for extended periods of time. If the ampacity provided is not representative of the entire line then there is a risk that the conductor temperature could exceed the design temperature. Furthermore, the concept of a “critical span”, on which additional monitoring equipment could potentially be installed to provide some further degree of confidence, is not easily identified, as the variable environmental conditions would be such that the critical span would be constantly changing. It is therefore necessary to consider further developments to the application of DLR systems to reduce this risk. As part of the trial, this has been investigated by utilising the recorded weather conditions across the three sites for one year and retrospectively calculating the ampacity for a generic type conductor, in this case Jaguar. The high level settings, which were identified as part of the process for optimising the DLR system, used to calculate the ampacity at each location have been summarised in Table 21.



Conductor type Jaguar Ambient Temperature DynamicAmbient temperature averaging 1 minuteWind velocity DynamicWind velocity averaging 10 minute rolling average Wind direction 0° (with respect to the overhead line) Solar radiation 890 W/m2

Table 21: DLR settings summary for trial hypothesis 002 This use of a generic conductor is also used to evaluate the concept that a single weather station could be used to determine the ampacity for multiple overhead lines, consisting of different type conductors, using a more centralised DLR system, such as is available in Smarter Grid Solutions Thermal Ratings application. A sample of this data is illustrated in Figure 8, from which it is evident that the ampacities calculated vary significantly across the three sites. There is still correlation between the three sites, although at times there are significant variances between the calculated values, with a summary of the Pearson’s correlation coefficients and the variances shown Table 22.

Figure 8: Sample of calculated ampacities for a Jaguar conductor



Pearson's correlation coefficient

Average Variance

Maximum Variance

Funtham’s Lane / March 0.798 14% 78%

Funtham’s Lane / Farcet 0.801 17% 92%

March / Farcet 0.848 16% 91% Table 22: Pearson’s correlation coefficients

Due to the limits imposed by the maximum permissible ampacity, which would be defined by the next limiting factor in the circuit, the maximum variance will not be as high as that calculated. However, this provides further evidence that consideration must be given to account for these variances. Two possible solutions to account for this variance were considered and further evaluated. A summary of which is as follows: • Use the worst ampacity calculated This approach was one of the options considered as part of the E.ON Central Networks trial. For this option to be viable a minimum of two DLR systems (or two weather stations) would need to be installed at appropriate intervals along the line under consideration. The ampacity would be calculated at each location, with the values compared within the ANM system. The ANM system would subsequently utilise the worst case calculated ampacity when determining the necessary levels of curtailment of the connected distributed generation. To evaluate this approach, the ampacities calculated for the Jaguar conductor type, using the three sets of weather data collected, have been used to determine the “worst case” ampacity within the area, which has been taken as the lowest value for each time period. A sample of this data is illustrated in Figure 9.

Figure 9: Sample of “worst case” ampacity in the trial area for a Jaguar conductor



Combining this approach with a maximum permissible ampacity of 600A, to align with the general circuit restrictions in the area, continues to deliver material benefits. A summary of the additional headroom that could be created through such an implementation of the DLR system is shown in Table 23. This additional capacity would exceed that which could be achieved by increasing the operating conductor temperature to 65°C and would mitigate any risks associated with operating the overhead line near its operational limits.

Average increase in ampacity

(%)

Additional annual capacity

(GWh)


Worst case ampacity 14.0 30.1 47 Table 23: Summary of additional capacity that could be made available using the “worst case” approach

Using this approach there would be no excursions from the calculated ampacity values, although it should be noted that there is still a risk that this does not fully represent the ampacity across the entire circuit. • The application of a Wind Velocity Correction factor of 0.74 An alternative solution to that above is to apply a correction factor within the DLR Relay, with the main variable quantity being the wind velocity. This correction factor was determined by considering the worst correlation of wind velocity at each of the three locations, which was calculated in section 5.4 to be 0.74. This correlation coefficient was then utilised as part of the relay functionality, which enables the use of a wind velocity correction factor, to determine the ampacity at each of the weather stations. To evaluate this approach, the ampacities for the Jaguar conductor type, using the three sets of weather data, were re‐calculated applying the 0.74 correction factor. A sample of this data is illustrated in Figure 10.

Figure 10: Sample of corrected ampacities in the trial area for a Jaguar conductor



Combining this approach, and limiting the maximum permissible ampacity to 600A to align with the general circuit restrictions in the area, still delivers appreciable benefits. A further summary of the additional headroom that could be created through such an implementation of the DLR system is shown in Table 24. This additional capacity would exceed that which could be achieved by increasing the operating conductor temperature to 65°C and would mitigate any risks associated with operating the overhead line near its operational capacity.

Approach Weather data set Average increase in ampacity

(%)

Additional annual capacity

(GWh)


Wind velocity correction factor Farcet 1 2.08 47Wind velocity correction factor Funthams Lane 8 18.74 47Wind velocity correction factor March 5 10.91 47Table 24: Summary of additional capacity that could be made available using the “worst case” approach

These results are more conservative that those obtained using the “worst case” approach. Also, with this approach there would be a number of known excursions from the calculated ampacity values. Considering the two options, it is evident that the use of multiple weather stations would enable greater mitigation of the risks associated with using DLR systems, namely that the weather data from one weather station does not fully represent that elsewhere on the circuit. The use of lowest calculated ampacity value from multiple DLR systems would also ensure that there were no known excursions from the ampacity provided. This approach would enable greater utilisation of the overhead line if used to enable the ANM of distributed generation and/or manageable loads. It should be noted that for wind generation, both options are likely to yield similar gains, due to the high correlation between the wind velocity and the output of wind generation.



6. Trial Outcome

6.1 Lessons Learnt

Significant knowledge has been generated as part of the design, implementation and analysis of the DLR systems, with particular focus on the integration and deployment of the DLR system as a business ready solution. The key learning outputs following completion of the trial have been summarised as follows: The levels of excursion from the seasonal static ratings, provided as part of ER‐P27, are far greater over the period analysed than defined within ER‐P27, particularly in May and September. This would suggest the need for a review of ER‐P27, involving monitoring weather conditions over a number of years. Indirect weather based DLR Systems involve lower capex and opex than direct DLR systems and can be used to enable greater utilisation of 33kV lines and mitigate the risk associated with the increased levels of excursion from ER‐P27 static ratings identified as part of this trial analysis. The DLR system settings were such that the ampacities calculated over the source of the trial were different from those expected. This was caused due to the setting range of Line Azimuth Min/Max. As they were set to 0° and 180° respectively, the relay was applying the default wind direction across this range and considering the worst case value in the calculation, which would be 0° instead of the default 20° expected. The CIGRE 207 model can be easily replicated and retrospectively applied using historic weather data to an accuracy of within +/‐ 2% of that calculated using the DLR Relay. DLR Systems would be considered preferable to the application of seasonal ratings at a higher conductor operating temperature. This is because the levels of excursion identified may put the network at increased risk if the capacity was utilised as part of an ANM system. This risk is present due to the increased probability that the controlled system would be operating at the conductor rating for extended periods of time, thus increasing the likelihood that this would occur during a period of high ambient temperature and low wind velocity. Instead, it was found that a DLR system, using an operating temperature of 50°C, would provide a greater increase in conductor utilisation. This would then mitigate the risks during periods when the ambient temperature is high and the wind velocity is low, particularly as there would be the additional safety margin available due to the extra clearances available.

6.2 Recommendations

The key recommendations following completion of the trial were summarised as follows: In light of the levels of excursions from the ER‐P27 static ratings over the trial period, it is suggested that ER‐P27 be reviewed. The high level approach to the application of Indirect DLR systems has been summarised as follows: • The overhead line under consideration should be assessed to determine the type of conductor constraining the

capacity available. Furthermore, a detailed review of the ratings of all other assets on the circuit needs to be undertaken to identify the next limiting factor, which would provide the maximum permissible ampacity for the circuit.



• Wherever feasible, the line should be surveyed to identify opportunities for uprating the operating temperature of the conductor and to identify any obvious obstructions that may shield the overhead line from the wind. As part of the trial this was achieved using a LiDAR survey, although other methods are available. Any recommendations to alter the overhead line so as maintain clearances at higher operating conductor temperature should be considered, particularly where the costs /works are relatively minor.

• DLR systems (or just weather stations) should be installed at multiple points along the line, with at least two systems being installed, at the extremities of the line. Wherever feasible, these weather stations should be installed local to the overhead line in a manner that reflects the conditions of the route of the overhead line.

• The ANM system considering the output of the DLR systems should be configured to use the lowest ampacity from these individual systems.

• A template of recommended DLR settings has been identified, a detail overview for which is contained in Appendix 6.

Consideration should be given to incorporating the CIGRE 207 equations into a centralised system, as has been achieved by Smarter Grid Solutions in their Thermal ratings application. Similarly, the burden of installing and maintaining weather stations, albeit very small, could be mitigated through the use of third party provided real‐time weather information. However, it should be noted that there would be a considerable development cost, and ongoing operational costs, for such an interface so the feasibility of this would need to be investigated further. Finally, due to the potential inaccuracies with indirect methods of calculating the ampacity on the circuit, as is the case with the weather based system, it was found that a number of safety margins were required. For the system deployed, these were incorporated through the use of default solar radiation and wind direction, which both consider the worst‐case situation. Additionally, the ampacity was calculated at multiple points along the circuit with the lowest result used for constraint management. Whilst these mitigate the risk, the risk is not completely eliminated. A possible solution, which would provide an accurate means of providing the ampacity for the conductors, without the inclusion of any safety margin, would be to consider a direct method of calculating the ampacity from conductor temperature measurements. Whilst this has not been researched as part of this project, the possible additional increase in ampacity from a direct DLR system may be cost‐effective for some embedded generation schemes, particularly where generation output does not correlate with DLR ampacity, e.g. solar schemes.



7. Conclusion

The trial was successful in developing a DLR system that, based on the results recorded, could be deployed onto the network and used as part of an ANM system to enable the connection of distributed generation and other manageable loads. This includes a scheme design, appropriate relay settings and an appropriate approach for its installation and integration into an ANM system. This trial report contains evidence supporting the satisfactory completion of the following project learning outcomes for the DLR use case, as defined the project use case document: The capabilities, limits and requirements of DLR on 33 kV overhead lines in the FPP area. Design, installation, configuration and management processes associated with DLR relays. The weather station data requirements to achieve acceptable DLR performance. The scheme proposed, if used to enable the connection of wind generation, would be such that the risk of exceedance of the conductor operating temperature would be minimal, as the output of the wind generation will only be high when the wind velocity is high and the resultant cooling effect on the line is equally high. Conversely the output of the wind generation will only be low when the wind velocity is low and the resultant cooling effect on the line is equally low. If used to enable the connection of other distributed generation types, including manageable loads, the risk would be higher, although this could be mitigated by assessing clearances to identify opportunities to increase the operating temperature of the conductor.



8. References

[1] ENA (1986). Current Rating Guide for High Voltage Overhead Lines Operating in the UK Distribution System. Engineering Recommendation P27

[2] ENA (1986). Report on the Derivation of Overhead Line Ratings Applicable to High Voltage Overhead Lines. ACE Report No. 104

[3] Aten, M, et al (2011). FIELD MEASUREMENTS ANALYSIS FOR DYNAMIC LINE RATING. CIRED 2011 Paper 0919.

[4] Abdelkader, S, et al (2009). Dynamic Monitoring of Overhead Line Ratings in Wind Intensive Areas

[5] Mott McDonald (2012). 132kV Pelham – Wymondley Overhead Line Uprating Proposal

[6] Energy Networks Association (2004). Technical Specification 43‐8, Overhead line clearances with amendment 1. Issue 3



9. Appendices



Appendix 1 Initial DLR relay settings

DLR_1a DLR_1b DLR_2 DLR_4Dyn Line Rating CIGRE Std 207 CIGRE Std 207 CIGRE Std 207 CIGRE Std 207 Conductor Type Jaguar Wolf Dog JaguarNonFerrous layer 2 2 2 2Solar Absorpt 5.00E‐01 5.00E‐01 5.00E‐01 5.00E‐01Line Emissivity 5.00E‐01 5.00E‐01 5.00E‐01 5.00E‐01Line Elevation 9.000 m 10.00 m 9.000 m 10.00 mLine Azimuth Min 0 0 0 0Line Azimuth Max 180 180 180 180T Conductor Max 50.00 Cel 50.00 Cel 50.00 Cel 50.00 CelAmpacity Min 338.0 A 338.0 A 253.0 A 408.0 AAmpacity Max 1500 A 1500 A 1500 A 1500 ADrop‐off Ratio 98.00% 98.00% 98.00% 98.00%Line Direction 185 129 95 288Ambient Temp CLI1 CLI2 CLI3 CLI0Default AmbientT 20.00 Cel 20.00 Cel 20.00 Cel 20.00 CelAmbient T Corr 0 Cel 0 Cel 0 Cel 0 CelAmbient T Min ‐10.00 Cel ‐10.00 Cel ‐10.00 Cel ‐10.00 CelAmbient T Max 40.00 Cel 40.00 Cel 40.00 Cel 40.00 CelAmbient T AvgSet Disabled Disabled Disabled DisabledAmbient T AvgDly 60.00 s 60.00 s 60.00 s 60.00 sAmb T Input Type 4‐20mA 4‐20mA 4‐20mA 4‐20mAAmb T I/P Min ‐10.00 Cel ‐10.00 Cel ‐10.00 Cel ‐10.00 CelAmb T I/P Max 40.00 Cel 40.00 Cel 40.00 Cel 40.00 CelAmb T I< Alarm Enabled Enabled Enabled Enabled Amb T I< Alm Set 3.500 mA 3.500 mA 3.500 mA 3.500 mAWind Velocity CLI1 CLI1 CLI1 CLI1 Default Wind Vel 500.0 mm/s 500.0 mm/s 500.0 mm/s 500.0 mm/sWind Vel Corr 100.00% 100.00% 100.00% 100.00%Wind Vel Min 0 m/s 0 m/s 0 m/s 0 m/sWind Vel Max 60.00 m/s 60.00 m/s 60.00 m/s 60.00 m/sWind Vel AvgSet Enabled Enabled Enabled Enabled Wind Vel AvgDly 600.0 s 600.0 s 600.0 s 600.0 sWV Input Type 4‐20mA 4‐20mA 4‐20mA 4‐20mA WV I/P Minimum 0 m/s 0 m/s 0 m/s 0 m/sWV I/P Maximum 60.00 m/s 60.00 m/s 60.00 m/s 60.00 m/sWV I< Alarm Enabled Enabled Enabled Enabled WV I< Alarm Set 3.500 mA 3.500 mA 3.500 mA 3.500 mAWind Direction Disabled Disabled Disabled Disabled Default Wind Dir 0 0 0 20Solar Radiation Disabled Disabled Disabled Disabled Default Solar R 0 W 0 W 0 W 0 W



Appendix 2 DLR relay settings post March 2014

DLR_1a DLR_1b DLR_2 DLR_4Dyn Line Rating CIGRE Std 207 CIGRE Std 207 CIGRE Std 207 CIGRE Std 207 Conductor Type Jaguar Wolf Dog JaguarNonFerrous layer 2 2 2 2Solar Absorpt 5.00E‐01 5.00E‐01 5.00E‐01 5.00E‐01Line Emissivity 5.00E‐01 5.00E‐01 5.00E‐01 5.00E‐01Line Elevation 9.000 m 10.00 m 9.000 m 10.00 mLine Azimuth Min 0 0 0 0Line Azimuth Max 180 180 180 180T Conductor Max 50.00 Cel 50.00 Cel 50.00 Cel 50.00 CelAmpacity Min 338.0 A 338.0 A 253.0 A 408.0 AAmpacity Max 1500 A 1500 A 1500 A 1500 ADrop‐off Ratio 98.00% 98.00% 98.00% 98.00%Line Direction 185 129 95 288Ambient Temp CLI1 CLI2 CLI3 CLI0Default AmbientT 20.00 Cel 20.00 Cel 20.00 Cel 20.00 CelAmbient T Corr 0 Cel 0 Cel 0 Cel 0 CelAmbient T Min ‐10.00 Cel ‐10.00 Cel ‐10.00 Cel ‐10.00 CelAmbient T Max 40.00 Cel 40.00 Cel 40.00 Cel 40.00 CelAmbient T AvgSet Disabled Disabled Disabled DisabledAmbient T AvgDly 60.00 s 60.00 s 60.00 s 60.00 sAmb T Input Type 4‐20mA 4‐20mA 4‐20mA 4‐20mAAmb T I/P Min ‐10.00 Cel ‐10.00 Cel ‐10.00 Cel ‐10.00 CelAmb T I/P Max 40.00 Cel 40.00 Cel 40.00 Cel 40.00 CelAmb T I< Alarm Enabled Enabled Enabled Enabled Amb T I< Alm Set 3.500 mA 3.500 mA 3.500 mA 3.500 mAWind Velocity CLI1 CLI1 CLI1 CLI1 Default Wind Vel 500.0 mm/s 500.0 mm/s 500.0 mm/s 500.0 mm/sWind Vel Corr 100.00% 100.00% 100.00% 100.00%Wind Vel Min 0 m/s 0 m/s 0 m/s 0 m/sWind Vel Max 60.00 m/s 60.00 m/s 60.00 m/s 60.00 m/sWind Vel AvgSet Enabled Enabled Enabled Enabled Wind Vel AvgDly 600.0 s 600.0 s 600.0 s 600.0 sWV Input Type 4‐20mA 4‐20mA 4‐20mA 4‐20mA WV I/P Minimum 0 m/s 0 m/s 0 m/s 0 m/sWV I/P Maximum 60.00 m/s 60.00 m/s 60.00 m/s 60.00 m/sWV I< Alarm Enabled Enabled Enabled Enabled WV I< Alarm Set 3.500 mA 3.500 mA 3.500 mA 3.500 mAWind Direction Disabled Disabled Disabled Disabled Default Wind Dir 20 20 20 20Solar Radiation Disabled Disabled Disabled Disabled Default Solar R 890.0 W 890.0 W 890.0 W 890.0 W



Appendix 3 Thermal Rating Report for Circuit 5555, Peterborough Central – Farcet

Thermal Rating Report for

Circuit 5555_T2

Peterborough Central – Farcet

Prepared for:

Date: 16th July 2013

Our Reference: NMLP13046

Contents

Introduction ................................................................................................................................ 1 1.0

Summary of Findings ................................................................................................................... 1 2.0

2.1 Steady State Summary ............................................................................................................ 1

2.2 Transient State Summary ........................................................................................................ 1

2.3 Thermal Rating Summary ........................................................................................................ 1

2.3.1 Infringement Summary ................................................................................................... 1

2.3.2 Infringement Correction Solutions ................................................................................. 1

2.4 Blow-out Clearance Infringements ......................................................................................... 2

Circuit Details .............................................................................................................................. 2 3.0

Assessment Criteria .................................................................................................................... 2 4.0

Steady State Calculator ............................................................................................................... 3 5.0

5.1 Steady State Set-up ................................................................................................................. 3

5.2 Steady State Thermal Rating ................................................................................................... 4

Transient State Calculator ........................................................................................................... 5 6.0

Rating Criteria ............................................................................................................................. 8 7.0

Thermal Rating Report ................................................................................................................ 9 8.0

8.1 Thermal Rating Summary ...................................................................................................... 10

8.2 Thermal Rating Detail ........................................................................................................... 14

Blow-Out Clearance Infringements Detail ................................................................................ 18 9.0

Author: Karthik Mani Date Modified: 16th

July 2013 Version: 2.0 1

Introduction 1.0

The survey of Circuit 5555 T2, Peterborough Central – Farcet was performed by Network Mapping on the 5th April 2013. The hardware used was Network Mapping’s ALTM 3100EA Scanner and Rollei AIC Camera System. Using the information that was collected and the load data supplied by UKPN, an analysis was performed for clearance to ground and undercrossing wires. This was performed using Finite Element Analysis techniques within PLS-CADD software. Engineer Karthik Mani 16th July 2013 Checked Cian Evans 30th July 2013 Approved Paul Richardson 30th July 2013

Summary of Findings 2.0

2.1 Steady State Summary

2.2 Transient State Summary

The conductor reaches maximum operating temperature (75 deg C) in 56 mins

2.3 Thermal Rating Summary

2.3.1 Infringement Summary

Required elevation increases for each clearance and at what temperature the clearance infringes. NOTE: TIN elevation, Interpolated points refer to ground points

Back Structure Number

Ahead Structure Number

Maximum Wire

Temp. (deg C)

Clearance Margin

Vert. (m) Notes

26 FARCET 0 -0.62 TIN elevation

2.3.2 Infringement Correction Solutions

Tower Number Height

increase (m) Comments

0025 - Farcet 0 No correction. Infringement within substation boundary

Temperature Maximum Normal (75°C)

Current (Amps) 653.4



2.4 Blow-out Clearance Infringements

Span Feature Type Station

(m.)

Required Clearance

(m)

Vertical Clearance

Margin (m)

0016 to 0017 Misc Lines 1488.2 2.0 -0.2

0016 to 0017 Misc Lines 1498.7 2.0 -0.4

0016 to 0017 Misc Lines 1502.9 2.0 -0.5

0016 to 0017 Misc Lines 1512.0 2.0 -0.5

0016 to 0017 Misc Lines 1519.5 2.0 -0.2

0026 to FARCET Interpolated Ground Points 2398.8 5.2 -1.6

Circuit Details 3.0

Circuit 5555 T2, Peterborough Central – Farcet

From Peterborough Central

To Farcet

Conductor Type 200mm2 ACSR JAGUAR

Length 2.41 Km

Voltage 33kV

Rated Temperature 75 °C

Assessment Criteria 4.0

Line Rating assessment for Circuit 5555 T2, Peterborough Central – Farcet for 75 degrees C under summer climatic parameters. Clearances are checked to 75 degrees C, and any infringing objects below that figure are reported. The following parameters are used per UK Power Network’s advice to calculate the line ampacities: • Wind speed = 0.5 m/sec • Ambient temperature = 20°C • Wind direction = blowing perpendicular to wire • Coefficient of emissivity = 0.5 • Coefficient of solar absorption = 0.5 • Elevation = 20m above sea level • Solar heat gain = 0 Watt/m2

Clearances from ENA43-8 have been used for clearance



Steady State Calculator 5.05.1 Steady State Set-up

PLS-CADD Version 12.30x64 13:08:47 16 July 2013 Network Mapping Inc Project Name: 5555_t2_peterborough central-farcet_pls_050413_v1 Criteria notes: Criteria file used is the ENA43-8, created by Network Mapping Engineer - Paul Richardson - Network Mapping CIGRE Brochure 207 method of calculation:

Ambient Temperature 20 (deg C)

Wind speed 0.5 (m/s)

Angle between wind and conductor

90 (deg)

Conductor elevation above sea level

20 (m)

Solar radiation 0.0 (Watt/m2)

Conductor description ACSR 200 mm2 18/1 Strands Jaguar

Conductors per phase 1

Cross Section Area 222.3 (mm2)

Conductor diameter 1.930 (cm)

Conductor resistance @ 25 deg C 0.13945 (Ohm/km)


Emissivity 0.5

Solar absorptivity 0.5

Solar heat input 0.0 (Watt/m)

Radiative Cooling 12.541 (Watt/m)

Convective Cooling 59.414 (Watt/m)



5.2 Steady State Thermal Rating

Given a maximum conductor temperature of 75 (deg C), The steady-state thermal rating is 653.4 amperes



Transient State Calculator 6.0

PLS-CADD Version 12.30x64 13:13:53 16 July 2013 Network Mapping Inc

Project Name: 5555_t2_peterborough central-farcet_pls_050413_v1 Criteria notes: Criteria file used is the ENA43-8, created by Network Mapping Engineer - Paul Richardson - Network Mapping CIGRE Brochure 207 method of calculation:




90 (deg)


20 (m)


Conductor description ACSR 200 mm2 30/7 Strands JAGUAR






Emissivity 0.5


Heat Capacity of conductor 529.2 (Watt-s/m-deg C)



All transient calculations assume: (1) The conductor is initially in thermal equilibrium (steady-state) (2) A step increase in electrical current occurs at time 'zero' (3) Weather conditions are the same before & after the step The initial steady-state current is 326.7 AMPS The current after the step change is 653.4 amperes The total time period of interest is 56.0000 minutes The calculation time interval is 60.0000 seconds Initial steady-state conductor temperature = 32.2 (deg C) For a pre-step steady-state current = 326.7 amperes The total time of interest after the current increases to 653.4 amps is 56.0000 minutes Calculation accuracy would improve if this time interval were reduced Time= 0.0000 sec Conductor temperature= 32.2 (deg C) Time= 60.0000 sec Conductor temperature= 37.0 (deg C) Time= 120.0000 sec Conductor temperature= 41.4 (deg C) Time= 180.0000 sec Conductor temperature= 45.2 (deg C) Time= 240.0000 sec Conductor temperature= 48.6 (deg C) Time= 300.0000 sec Conductor temperature= 51.7 (deg C) Time= 360.0000 sec Conductor temperature= 54.4 (deg C) Time= 420.0000 sec Conductor temperature= 56.8 (deg C) Time= 480.0000 sec Conductor temperature= 58.9 (deg C) Time= 540.0000 sec Conductor temperature= 60.8 (deg C) Time= 600.0000 sec Conductor temperature= 62.4 (deg C) Time= 660.0000 sec Conductor temperature= 63.9 (deg C) Time= 720.0000 sec Conductor temperature= 65.2 (deg C) Time= 780.0000 sec Conductor temperature= 66.3 (deg C) Time= 840.0000 sec Conductor temperature= 67.4 (deg C) Time= 900.0000 sec Conductor temperature= 68.3 (deg C) Time= 960.0000 sec Conductor temperature= 69.1 (deg C) Time= 1020.0000 sec Conductor temperature= 69.8 (deg C) Time= 1080.0000 sec Conductor temperature= 70.4 (deg C) Time= 1140.0000 sec Conductor temperature= 70.9 (deg C) Time= 1200.0000 sec Conductor temperature= 71.4 (deg C) Time= 1260.0000 sec Conductor temperature= 71.8 (deg C) Time= 1320.0000 sec Conductor temperature= 72.2 (deg C) Time= 1380.0000 sec Conductor temperature= 72.5 (deg C) Time= 1440.0000 sec Conductor temperature= 72.8 (deg C) Time= 1500.0000 sec Conductor temperature= 73.1 (deg C) Time= 1560.0000 sec Conductor temperature= 73.3 (deg C) Time= 1620.0000 sec Conductor temperature= 73.5 (deg C) Time= 1680.0000 sec Conductor temperature= 73.7 (deg C) Time= 1740.0000 sec Conductor temperature= 73.8 (deg C) Time= 1800.0000 sec Conductor temperature= 74.0 (deg C) Time= 1860.0000 sec Conductor temperature= 74.1 (deg C) Time= 1920.0000 sec Conductor temperature= 74.2 (deg C) Time= 1980.0000 sec Conductor temperature= 74.3 (deg C)



Time= 2040.0000 sec Conductor temperature= 74.4 (deg C) Time= 2100.0000 sec Conductor temperature= 74.5 (deg C) Time= 2160.0000 sec Conductor temperature= 74.5 (deg C) Time= 2220.0000 sec Conductor temperature= 74.6 (deg C) Time= 2280.0000 sec Conductor temperature= 74.6 (deg C) Time= 2340.0000 sec Conductor temperature= 74.7 (deg C) Time= 2400.0000 sec Conductor temperature= 74.7 (deg C) Time= 2460.0000 sec Conductor temperature= 74.7 (deg C) Time= 2520.0000 sec Conductor temperature= 74.8 (deg C) Time= 2580.0000 sec Conductor temperature= 74.8 (deg C) Time= 2640.0000 sec Conductor temperature= 74.8 (deg C) Time= 2700.0000 sec Conductor temperature= 74.8 (deg C) Time= 2760.0000 sec Conductor temperature= 74.9 (deg C) Time= 2820.0000 sec Conductor temperature= 74.9 (deg C) Time= 2880.0000 sec Conductor temperature= 74.9 (deg C) Time= 2940.0000 sec Conductor temperature= 74.9 (deg C) Time= 3000.0000 sec Conductor temperature= 74.9 (deg C) Time= 3060.0000 sec Conductor temperature= 74.9 (deg C) Time= 3120.0000 sec Conductor temperature= 74.9 (deg C) Time= 3180.0000 sec Conductor temperature= 74.9 (deg C) Time= 3240.0000 sec Conductor temperature= 74.9 (deg C) Time= 3300.0000 sec Conductor temperature= 74.9 (deg C) Time= 3360.0000 sec Conductor temperature= 75.0 (deg C)




Rating Criteria 7.0

Feat. Code

Feature Description

Required Clearance

Vert. 33kV (m)

Req uired Clearance

Horiz. 33kV (m)

1 Tower Base 5.2 0.8

10 Structure 0 0

20 Ground / Model Key Points 5.2 0.8

30 Phase 1 0 0

31 Phase 2 0 0

32 Phase 3 0 0

33 Wires Earth/Shield 0 0

50 Misc Lines 2 0.8

100 River Navigable 10 0.8

104 Swimming Pool 10 0.8

107 Stream Non-Navigable 6.1 0.8

120 Roads 5.8 0.8

128 Bridges 5.8 0.8

131 Footpath/Sidewalk/Track/Car Park 5.2 0.8

135 Motorways 14 0.8

136 Railways 7.3 0.8

140 Fence 3 0.8

141 Wall 3 0.8

143 Building 3 0.8

151 Vegetation 3 0.8

160 Power Line Crossings Wires 2 0.8

169 Street Furniture 1.7 0.8

170 Power Line Crossing Structures 3 0.8

189 Leisure Area 10 0.8

205 Industrial 0 0

206 Substation 2 0.8

207 Temporary Object 0 0

208 Guy Wire 0 0

300 Interpolated Ground Points 5.2 0.8



Thermal Rating Report 8.0

Criteria notes: Criteria file used is the ENA43-8, created by Network Mapping Engineer - Paul Richardson - Network Mapping Thermal Rating Report Settings: Structure rangePeterborough Central to Farcet Temperature range: 0 (°C) to 75 (°C) Cable condition: Creep FE Maximum offset from wires 1.00 (m) Special Temperature Values: 0 (deg C) indicates that a violation occurs even at the minimum temperature (will be indicated as NG) 75 (deg C) indicates that there is never a violation even at the maximum temperature Results based on vertical clearances to survey points that are within a 1.00 (m) offset from wires. Results based on clearance to ground calculated at 1.00 (m) station intervals along span. If a TIN model is available it is used to calculate the ground level directly below the span and 1.00 (m) left or right of that point. If the program is unable to determine the ground elevations at these points from the TIN model then it will try to construct a profile below the wire. This profile consists of line segments created by connecting survey points with known ground elevations within a 1.00 (m) offset of the wire in order of increasing station. Segments with lengths in excess of 10.00 (m) are not included.




Note: Spans sorted in order of temperature causing vertical clearance violations



Maximum Wire

Temp. (deg C)

Critical Station

(m)

Critical Offset

(m)

Critical X (m)

Critical Y (m)

Critical Z (m)

Offset From Wire (m)

Notes

26 FARCET 0 2397 0.96 519853.66 294658.85 14.06 1 NG TIN elevation

1 2 75 40.98 -1.51 520018.06 296863.15 4.06 -0.14 No violations found at max temp. of 75.00

2 3 75 114.94 -0.17 520047.79 296795.42 3.69 1 No violations found at max temp. of 75.00

3 4 75 190.36 2.11 520077.13 296725.91 3.86 1 No violations found at max temp. of 75.00

4 5 75 268.54 0 520082.76 296654.17 4.2 0.07 No violations found at max temp. of 75.00

5 6 75 372.33 -0.91 520036.78 296562.69 4.14 0.3 No violations found at max temp. of 75.00

6 7 75 472.8 1.35 519971.8 296486.03 4.73 0.11 No violations found at max temp. of 75.00


8 9 75 681.04 0 519888.17 296296.86 4.8 0 No violations found at max temp. of 75.00

9 10 75 777.71 0.86 519853.68 296206.55 4.6 -0.26 No violations found at max temp. of 75.00




13 14 75 1176.6 0 519820.3 295817.43 5.09 -0.02 No violations found at max temp. of 75.00





19 20 75 1800 -2.1 519723.43 295229.24 5.6 -0.97 No violations found at max temp. of 75.00






23 24 75 2160.9 -2.23 519834.01 294890.21 8.75 -1 No violations found at max temp. of 75.00





Ahead span of structure 0026, station 2396.81 (m) Maximum wire temperature < 0 (deg C), NG TIN elevation, Aborted critical point search since wire can't clear point at 0 (deg C). Red line goes from controlling point to required height above it. Thick dotted blue line is wire position at maximum temperature.



Figure 1: Plan image of infringments between structures 0026 and Farcet



8.2 Thermal Rating Detail

Note: Temperatures printed are those at which ahead spans get vertical clearance violations

Cable File Name Back

Structure Number

Set No.

Phase No.


Maximum Wire

Temp. (deg C)

Critical Station

(m)

Critical Offset

(m)

Critical X (m)

Critical Y (m)

Critical Z (m)


Notes

jaguar_acsr_adapted_rev.1.wir 1 11 1 2 75 40.98 -1.51 520018.06 296863.15 4.06 -0.14 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 1 12 1 2 75 37.58 0 520015.26 296865.61 4.01 0 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 1 13 1 2 75 43.52 1.4 520016.49 296859.63 3.56 0.07 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 2 1 1 3 75 114.94 -0.17 520047.79 296795.42 3.69 1 No violations found at max temp. of 75.00




jaguar_acsr_adapted_rev.1.wir 3 2 1 4 75 186.21 0 520077.33 296730.55 3.83 0.04 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 3 3 1 4 75 190.36 2.11 520077.13 296725.91 3.86 1 No violations found at max temp. of 75.00




jaguar_acsr_adapted_rev.1.wir 5 11 1 6 75 372.33 -0.91 520036.78 296562.69 4.14 0.3 No violations found at max temp. of 75.00


jaguar_acsr_adapted_rev.1.wir 5 13 1 6 75 377.4 0.77 520032.29 296559.8 4.17 -0.46 No violations found at max temp. of 75.00


jaguar_acsr_adapted_rev.1.wir 6 2 1 7 75 471.08 0 519973.94 296486.51 4.7 -0.01 No violations found at max temp. of 75.00










jaguar_acsr_adapted_rev.1.wir 9 1 1 10 75 766.51 -0.09 519858.47 296216.71 5 1 No violations found at max temp. of 75.00
















jaguar_acsr_adapted_rev.1.wir 14 2 1 15 75 1284.98 0 519832 295709.7 5.15 0 No violations found at max temp. of 75.00


















jaguar_acsr_adapted_rev.1.wir 20 3 1 21 75 1880.26 0 519736.75 295150.1 6.09 -1 No violations found at max temp. of 75.00







jaguar_acsr_adapted_rev.1.wir 23 1 1 24 75 2160.92 -2.23 519834.01 294890.21 8.75 -1 No violations found at max temp. of 75.00








jaguar_acsr_adapted_rev.1.wir 25 3 1 26 75 2341.65 1.87 519853.74 294713 12.68 0.64 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 26 11 1 FARCET 0 2396.8 -0.27 519854.84 294658.46 14.03 1 NG TIN elevation

jaguar_acsr_adapted_rev.1.wir 26 12 1 FARCET 0 2396.99 0.96 519853.66 294658.85 14.06 1 NG TIN elevation

jaguar_acsr_adapted_rev.1.wir 26 13 1 FARCET 0 2397.2 2.19 519852.47 294659.23 14.09 1 NG TIN elevation



Blow-Out Clearance Infringements Detail 9.0

The infringements shown below are for 45 degree blow-out at maximum operating temperature of the conductor

Span Feature Type Station

(m.)

Offset "-" Left, "+"

Right (m.)

3D Clearance

(m.)

Required Clearance

(m)

Vertical Clearance

Margin (m)

0016 to 0017 Misc Lines 1488.23 5.2 1.76 2 -0.24

0016 to 0017 Misc Lines 1498.73 5.2 1.6 2 -0.4

0016 to 0017 Misc Lines 1502.91 5.13 1.54 2 -0.46

0016 to 0017 Misc Lines 1511.96 5.12 1.54 2 -0.46

0016 to 0017 Misc Lines 1519.52 5.14 1.76 2 -0.24

0026 to FARCET Interpolated Ground Points 2398.83 0 3.65 5.2 -1.55


UK Power Networks (Operations) Limited. Registered in England and Wales. Registered No. 3870728. Registered Office: Newington House, 237 Southwark Bridge Road, London, SE1 6NP Page 44 of 46

Appendix 4 Thermal Rating Report for Circuit 5555, Peterborough Central – Bury


Circuit 5555

Peterborough Central – Bury

Prepared for:

Date: 24th June 2013


Contents

Introduction ................................................................................................................................ 1 1.0








Circuit Details .............................................................................................................................. 2 3.0




5.2 Steady State Thermal Rating ................................................................................................... 5


Rating Criteria ........................................................................................................................... 10 7.0

Thermal Rating Report .............................................................................................................. 11 8.0




Author: George Poole Date Modified: 24th

June 2013 Version: 1.0 1

Introduction 1.0

The survey of Circuit 5555, Peterborough Central – Bury was performed by Network Mapping on the 5th April 2013. The hardware used was Network Mapping’s ALTM 3100EA Scanner and Rollei AIC Camera System. Using the information that was collected and the load data supplied by UKPN, an analysis was performed for clearance to ground and undercrossing wires. This was performed using Finite Element Analysis techniques within PLS-CADD software. Engineer George Poole 24th June 2013 Checked Cian Evans 25th June 2013 Approved Paul Richardson 25th June 2013







Required elevation increases for each clearance and at what temperature the clearance infringes. NOTE: TIN elevation, Interpolated points refer to ground points

Back Structure Number Ahead Structure

Number

Maximum Wire Temp.

(deg C)

Clearance Margin Vert.

(m) Notes

FARCET SUBSTATION 1 0 -0.84 TIN elevation

148 BURY SUBSTATION 0 -0.3 TIN elevation

72 73 55 -0.04 Point Misc Lines

95 96 69 -0.01 TIN elevation

98 99 74 -1.26 TIN elevation

Temperature Maximum Normal (75°C)

Current (Amps) 653.4




Tower Number

Height Increase

(m) Comments

Farcet - 0001 0 No correction. Infringement within substation boundary

73 0.5 Height increase between Misc Lines and Mainline conductors

95 0.5 Height increase between TIN elevation and Mainline conductors



0148 - Bury 0 No correction. Infringement within substation boundary


Span Feature Type Station (m) Required Clearance

(m)

Vertical Clearance

Margin (m)

FARCET SUBSTATION to 0001 Wall 4.19 3 -1.44

Circuit Details 3.0

Circuit 5555, Peterborough Central – Bury

From Peterborough Central

To Bury

Conductor Type 200mm2 ACSR JAGUAR

Length 16.30 Km

Voltage 33kV





Line Rating assessment for Circuit 5555, Peterborough Central – Bury for 75 degrees C under summer climatic parameters. Clearances are checked to 75 degrees C, and any infringing objects below that figure are reported. The following parameters are used per UK Power Network’s advice to calculate the line ampacities: • Wind speed = 0.5 m/sec • Ambient temperature = 20°C • Wind direction = blowing perpendicular to wire • Coefficient of emissivity = 0.5 • Coefficient of solar absorption = 0.5 • Elevation = 20m above sea level • Solar heat gain = 0 Watt/m2





PLS-CADD Version 12.30x64 09:00:59 24 June 2013 Network Mapping Inc Project Name: 5555_peterborough central-bury_pls_050413_v1 Criteria notes: Criteria file used is the ENA43-8, created by Network Mapping Engineer - Paul Richardson - Network Mapping CIGRE Brochure 207 method of calculation:




90 (deg)


20 (m)


Conductor description ACSR 200 mm2 18/1 Strands Jaguar






Emissivity 0.5


Solar heat input 0.0 (Watt/m)

Radiative Cooling 12.541 (Watt/m)

Convective Cooling 59.414 (Watt/m)



5.2 Steady State Thermal Rating





PLS-CADD Version 12.30x64 09:09:25 24 June 2013 Network Mapping Inc

Project Name: 5555_peterborough central-bury_pls_050413_v1 Criteria notes: Criteria file used is the ENA43-8, created by Network Mapping Engineer - Paul Richardson - Network Mapping CIGRE Brochure 207 method of calculation:




90 (deg)


20 (m)


Conductor description ACSR 200 mm2 30/7 Strands JAGUAR






Emissivity 0.5


Heat Capacity of conductor 529.2 (Watt-s/m-deg C)



All transient calculations assume: (1) The conductor is initially in thermal equilibrium (steady-state) (2) A step increase in electrical current occurs at time 'zero' (3) Weather conditions are the same before & after the step The initial steady-state current is 326.7 AMPS The current after the step change is 653.4 amperes The total time period of interest is 56.0000 minutes The calculation time interval is 60.0000 seconds Initial steady-state conductor temperature = 32.2 (deg C) For a pre-step steady-state current = 326.7 amperes The total time of interest after the current increases to 653.4 amps is 56.0000 minutes Calculation accuracy would improve if this time interval were reduced Time= 0.0000 sec Conductor temperature= 32.2 (deg C) Time= 60.0000 sec Conductor temperature= 37.0 (deg C) Time= 120.0000 sec Conductor temperature= 41.4 (deg C) Time= 180.0000 sec Conductor temperature= 45.2 (deg C) Time= 240.0000 sec Conductor temperature= 48.6 (deg C) Time= 300.0000 sec Conductor temperature= 51.7 (deg C) Time= 360.0000 sec Conductor temperature= 54.4 (deg C) Time= 420.0000 sec Conductor temperature= 56.8 (deg C) Time= 480.0000 sec Conductor temperature= 58.9 (deg C) Time= 540.0000 sec Conductor temperature= 60.8 (deg C) Time= 600.0000 sec Conductor temperature= 62.4 (deg C) Time= 660.0000 sec Conductor temperature= 63.9 (deg C) Time= 720.0000 sec Conductor temperature= 65.2 (deg C) Time= 780.0000 sec Conductor temperature= 66.3 (deg C) Time= 840.0000 sec Conductor temperature= 67.4 (deg C) Time= 900.0000 sec Conductor temperature= 68.3 (deg C) Time= 960.0000 sec Conductor temperature= 69.1 (deg C) Time= 1020.0000 sec Conductor temperature= 69.8 (deg C) Time= 1080.0000 sec Conductor temperature= 70.4 (deg C) Time= 1140.0000 sec Conductor temperature= 70.9 (deg C) Time= 1200.0000 sec Conductor temperature= 71.4 (deg C) Time= 1260.0000 sec Conductor temperature= 71.8 (deg C) Time= 1320.0000 sec Conductor temperature= 72.2 (deg C) Time= 1380.0000 sec Conductor temperature= 72.5 (deg C) Time= 1440.0000 sec Conductor temperature= 72.8 (deg C) Time= 1500.0000 sec Conductor temperature= 73.1 (deg C) Time= 1560.0000 sec Conductor temperature= 73.3 (deg C) Time= 1620.0000 sec Conductor temperature= 73.5 (deg C) Time= 1680.0000 sec Conductor temperature= 73.7 (deg C) Time= 1740.0000 sec Conductor temperature= 73.8 (deg C) Time= 1800.0000 sec Conductor temperature= 74.0 (deg C) Time= 1860.0000 sec Conductor temperature= 74.1 (deg C) Time= 1920.0000 sec Conductor temperature= 74.2 (deg C) Time= 1980.0000 sec Conductor temperature= 74.3 (deg C)



Time= 2040.0000 sec Conductor temperature= 74.4 (deg C) Time= 2100.0000 sec Conductor temperature= 74.5 (deg C) Time= 2160.0000 sec Conductor temperature= 74.5 (deg C) Time= 2220.0000 sec Conductor temperature= 74.6 (deg C) Time= 2280.0000 sec Conductor temperature= 74.6 (deg C) Time= 2340.0000 sec Conductor temperature= 74.7 (deg C) Time= 2400.0000 sec Conductor temperature= 74.7 (deg C) Time= 2460.0000 sec Conductor temperature= 74.7 (deg C) Time= 2520.0000 sec Conductor temperature= 74.8 (deg C) Time= 2580.0000 sec Conductor temperature= 74.8 (deg C) Time= 2640.0000 sec Conductor temperature= 74.8 (deg C) Time= 2700.0000 sec Conductor temperature= 74.8 (deg C) Time= 2760.0000 sec Conductor temperature= 74.9 (deg C) Time= 2820.0000 sec Conductor temperature= 74.9 (deg C) Time= 2880.0000 sec Conductor temperature= 74.9 (deg C) Time= 2940.0000 sec Conductor temperature= 74.9 (deg C) Time= 3000.0000 sec Conductor temperature= 74.9 (deg C) Time= 3060.0000 sec Conductor temperature= 74.9 (deg C) Time= 3120.0000 sec Conductor temperature= 74.9 (deg C) Time= 3180.0000 sec Conductor temperature= 74.9 (deg C) Time= 3240.0000 sec Conductor temperature= 74.9 (deg C) Time= 3300.0000 sec Conductor temperature= 74.9 (deg C) Time= 3360.0000 sec Conductor temperature= 75.0 (deg C)



Rating Criteria 7.0

Feature Code

Feature Description

Required Clearance Vert. 33 kV (m)

Required Clearance Horiz. 33 kV (m)


10 Structure 0 0


30 Phase 1 0 0

31 Phase 2 0 0

32 Phase 3 0 0


50 Misc Lines 2 0.8




120 Roads 5.8 0.8

128 Bridges 5.8 0.8




140 Fence 3 0.8

141 Wall 3 0.8

143 Building 3 0.8






205 Industrial 0 0



208 Guy Wire 0 0





Criteria notes: Criteria file used is the ENA43-8, created by Network Mapping Engineer - Paul Richardson - Network Mapping Thermal Rating Report Settings: Structure range: Peterborough Central to Bury Temperature range: 0 (°C) to 75 (°C) Cable condition: Creep FE Maximum offset from wires 1.00 (m) Special Temperature Values: 0 (deg C) indicates that a violation occurs even at the minimum temperature (will be indicated as NG) 75 (deg C) indicates that there is never a violation even at the maximum temperature Results based on vertical clearances to survey points that are within a 1.00 (m) offset from wires. Results based on clearance to ground calculated at 1.00 (m) station intervals along span. If a TIN model is available it is used to calculate the ground level directly below the span and 1.00 (m) left or right of that point. If the program is unable to determine the ground elevations at these points from the TIN model then it will try to construct a profile below the wire. This profile consists of line segments created by connecting survey points with known ground elevations within a 1.00 (m) offset of the wire in order of increasing station. Segments with lengths in excess of 10.00 (m) are not included.







Maximum Wire

Temp. (deg C)

Critical Station (m)

Critical Offset (m)

Critical X (m)

Critical Y (m)

Critical Z (m)


Notes

FARCET SUBSTATION 1 0 2.45 -0.38 519837.95 294642.13 14.05 1 TIN elevation

148 BURY SUBSTATION 0 16246.13 -0.24 528972.05 283939.5 3.33 1 TIN elevation

72 73 55 7880.42 1.23 525792.11 289932.69 5.76 -0.13 Point Misc Lines

95 96 69 10492 0.2 527719 288211.03 -0.9 -1 TIN elevation

98 99 74 10799.32 0.24 527933.28 287990.73 -0.22 -1 TIN elevation






6 7 75 535.65 -1 519863.79 294117.19 17.83 1 No violations found at max temp. of 75.00










14 0014A 75 1244.41 0 520275.72 293605.3 1.9 0.86 No violations found at max temp. of 75.00

0014A 15 75 1349.11 0 520369.54 293558.84 -0.16 0.03 No violations found at max temp. of 75.00

15 16 75 1466.36 0 520470.74 293499.72 -0.68 -0.01 No violations found at max temp. of 75.00

16 17 75 1615.57 0.22 520597.97 293421.78 -0.64 -0.99 No violations found at max temp. of 75.00


18 19 75 1816.57 0 520769.73 293317.39 -0.74 0 No violations found at max temp. of 75.00




22 23 75 2314.48 0.11 521194.87 293058.22 -0.49 -1 No violations found at max temp. of 75.00

23 24 75 2450.26 1.14 521310.08 292986.37 -0.86 0.11 No violations found at max temp. of 75.00

24 25 75 2556.78 0 521401.34 292931.42 -0.89 0.02 No violations found at max temp. of 75.00



27 28 75 2870.63 -0.27 521669.87 292768.97 -0.86 0.81 No violations found at max temp. of 75.00




31 32 75 3321.81 -1 522054.92 292533.88 0.6 0.25 No violations found at max temp. of 75.00


33 34 75 3559.6 0.24 522257.29 292408.99 0.61 -1 No violations found at max temp. of 75.00






39 40 75 4251.94 -1.82 522849.72 292050.73 -0.77 -0.73 No violations found at max temp. of 75.00







44 45 75 4777.62 -0.19 523294.06 291770.48 -1.18 1 No violations found at max temp. of 75.00






50 51 75 5446.38 -2.1 523817.15 291353.85 -1.09 -1 No violations found at max temp. of 75.00


















68 69 75 7354.05 2.07 525360.2 290233.55 -1.68 1 No violations found at max temp. of 75.00

















84 0084A 75 9222.54 0 526729.23 288973.21 -0.76 0 No violations found at max temp. of 75.00

0084A 85 75 9330.17 -0.97 526804.44 288896.22 -1.35 0.06 No violations found at max temp. of 75.00











96 97 75 10599.61 0 527794.41 288134.26 -1.21 -1 No violations found at max temp. of 75.00








103 0104R 75 11351.17 -2.21 528365.33 287648.13 -0.71 -1 No violations found at max temp. of 75.00

0104R 0104L 75 11440.52 1.39 528433.47 287590.22 -0.58 0.3 No violations found at max temp. of 75.00

0104L 105 75 11512.03 -0.29 528490.91 287547.59 -0.62 0.8 No violations found at max temp. of 75.00




108 109 75 11939 -2.05 528772.72 287240.81 -0.17 -0.83 No violations found at max temp. of 75.00




112 113 75 12340.15 0 528858.96 286849 1.66 0 No violations found at max temp. of 75.00






























140 141 75 15477 -0.11 529589.63 284389.02 -0.35 0.94 No violations found at max temp. of 75.00










Ahead span of structure FARCET SUBSTATION, station 2.45 (m) Maximum wire temperature < 0 (deg C), NG TIN elevation, Aborted critical point search since wire can't clear point at 0 (deg C). Red line goes from controlling point to required height above it. Thick dotted blue line is wire position at maximum temperature.



Figure 1: Plan view of infringement between structures FARCET and 0001



Ahead span of structure 0148, station 16246.13 (m) Maximum wire temperature < 0 (deg C), NG TIN elevation, Aborted critical point search since wire can't clear point at 0 (deg C). Red line goes from controlling point to required height above it. Thick dotted blue line is wire position at maximum temperature.



Figure 2: Plan view of infringement between structures 0148 and BURY



Ahead span of structure 0072, station 7880.42 (m) Maximum wire temperature 55 (deg C), Point Misc Lines Red line goes from controlling point to required height above it. Thick dotted blue line is wire position at maximum temperature.



Figure 3: Plan view of infringement between structures 0072 and 0073



Ahead span of structure 0095, station 10492.00 (m) Maximum wire temperature 69 (deg C), TIN elevation Red line goes from controlling point to required height above it. Thick dotted blue line is wire position at maximum temperature.



Ahead span of structure 0098, station 10799.32 (m) Maximum wire temperature 74 (deg C), TIN elevation Red line goes from controlling point to required height above it. Thick dotted blue line is wire position at maximum temperature.





Cable File Name Back Structure

Number Set No.

Phase No.


Maximum Wire

Temp. (deg C)

Critical Station

(m)

Critical Offset

(m)

Critical X (m)

Critical Y (m)

Critical Z (m)


Notes

jaguar_acsr_adapted_rev.1.wir FARCET SUBSTATION 11 1 1 0 2.45 -0.38 519837.95 294642.13 14.05 1 TIN elevation

jaguar_acsr_adapted_rev.1.wir FARCET SUBSTATION 12 1 1 0 2.46 1 519836.69 294642.71 14.06 1 TIN elevation

jaguar_acsr_adapted_rev.1.wir FARCET SUBSTATION 13 1 1 0 2.42 2.18 519835.64 294643.25 14.07 1 TIN elevation


















jaguar_acsr_adapted_rev.1.wir 6 3 1 7 75 535.65 -1 519863.79 294117.19 17.83 1 No violations found at max temp. of 75.00
























jaguar_acsr_adapted_rev.1.wir 14 11 1 0014A 75 1264.74 -2.37 520295.06 293598.58 1.68 -0.63 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 14 12 1 0014A 75 1248.96 -1.82 520280.61 293604.96 1.55 -0.57 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 14 13 1 0014A 75 1244.41 0 520275.72 293605.3 1.9 0.86 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0014A 1 1 15 75 1327.28 -1.29 520350.67 293569.88 -0.01 0.08 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0014A 2 1 15 75 1349.11 0 520369.54 293558.84 -0.16 0.03 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0014A 3 1 15 75 1341 2.31 520361.27 293560.45 -0.1 1 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 15 11 1 16 75 1488.24 -1.12 520490.01 293489.32 -0.68 0.22 No violations found at max temp. of 75.00



jaguar_acsr_adapted_rev.1.wir 15 12 1 16 75 1466.36 0 520470.74 293499.72 -0.68 -0.01 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 15 13 1 16 75 1389.02 1.72 520403.75 293538.42 -1.87 0.31 No violations found at max temp. of 75.00



jaguar_acsr_adapted_rev.1.wir 16 3 1 17 75 1615.57 0.22 520597.97 293421.78 -0.64 -0.99 No violations found at max temp. of 75.00





jaguar_acsr_adapted_rev.1.wir 18 12 1 19 75 1816.57 0 520769.73 293317.39 -0.74 0 No violations found at max temp. of 75.00


jaguar_acsr_adapted_rev.1.wir 19 1 1 20 75 1920.83 -1.44 520859.55 293264.45 -0.59 -0.38 No violations found at max temp. of 75.00





jaguar_acsr_adapted_rev.1.wir 20 3 1 21 75 2071.16 0.03 520987.22 293185.05 -0.84 -1 No violations found at max temp. of 75.00








jaguar_acsr_adapted_rev.1.wir 23 2 1 24 75 2425.83 0 521289.89 293000.17 -0.65 0.02 No violations found at max temp. of 75.00






jaguar_acsr_adapted_rev.1.wir 24 3 1 25 75 2527.54 0 521376.45 292946.76 -0.3 -1 No violations found at max temp. of 75.00



















jaguar_acsr_adapted_rev.1.wir 31 1 1 32 75 3321.81 -1 522054.92 292533.88 0.6 0.25 No violations found at max temp. of 75.00








jaguar_acsr_adapted_rev.1.wir 33 3 1 34 75 3559.6 0.24 522257.29 292408.99 0.61 -1 No violations found at max temp. of 75.00





jaguar_acsr_adapted_rev.1.wir 44 11 1 45 75 4777.62 -0.19 523294.06 291770.48 -1.18 1 No violations found at max temp. of 75.00








jaguar_acsr_adapted_rev.1.wir 46 3 1 47 75 5013.72 2.06 523477.04 291621.27 -0.45 1 No violations found at max temp. of 75.00










jaguar_acsr_adapted_rev.1.wir 50 1 1 51 75 5446.38 -2.1 523817.15 291353.85 -1.09 -1 No violations found at max temp. of 75.00












jaguar_acsr_adapted_rev.1.wir 72 1 1 73 69 7880.38 -0.67 525793.16 289934.27 5.72 0.55 Point Misc Lines

jaguar_acsr_adapted_rev.1.wir 72 2 1 73 66 7880.12 0.5 525792.28 289933.46 5.73 0.43 Point Misc Lines

jaguar_acsr_adapted_rev.1.wir 72 3 1 73 55 7880.42 1.23 525792.11 289932.69 5.76 -0.13 Point Misc Lines


























jaguar_acsr_adapted_rev.1.wir 80 3 1 81 75 8811.64 2.36 526442 289267.06 -0.88 1 No violations found at max temp. of 75.00










jaguar_acsr_adapted_rev.1.wir 84 1 1 0084A 75 9181.69 -0.57 526701.12 289002.87 -0.59 0.74 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 84 2 1 0084A 75 9222.54 0 526729.23 288973.21 -0.76 0 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 84 3 1 0084A 75 9176.56 1.76 526695.87 289004.91 -0.55 0.37 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0084A 1 1 85 75 9330.17 -0.97 526804.44 288896.22 -1.35 0.06 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0084A 2 1 85 75 9341.09 0 526811.27 288887.64 -0.19 -0.06 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0084A 3 1 85 75 9337.97 1.95 526807.7 288888.56 -0.39 0.81 No violations found at max temp. of 75.00

































jaguar_acsr_adapted_rev.1.wir 95 11 1 96 69 10492.78 -2.19 527721.25 288212.16 -0.84 -1 TIN elevation

jaguar_acsr_adapted_rev.1.wir 95 12 1 96 70 10492.88 -1.02 527720.5 288211.26 -0.87 -1 TIN elevation

jaguar_acsr_adapted_rev.1.wir 95 13 1 96 69 10492 0.2 527719 288211.03 -0.9 -1 TIN elevation











jaguar_acsr_adapted_rev.1.wir 98 3 1 99 74 10799.32 0.24 527933.28 287990.73 -0.22 -1 TIN elevation













jaguar_acsr_adapted_rev.1.wir 103 1 1 0104R 75 11351.17 -2.21 528365.33 287648.13 -0.71 -1 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 103 2 1 0104R 75 11345.05 0 528359.14 287650.15 -0.75 0 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 103 3 1 0104R 75 11309.79 1.74 528330.26 287670.45 -0.7 0.4 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0104R 1 1 0104L 75 11443.69 -2.07 528438.1 287590.98 -0.39 -1 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0104R 2 1 0104L 75 11442.03 0 528435.52 287590.38 -0.5 0 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0104R 3 1 0104L 75 11440.52 1.39 528433.47 287590.22 -0.58 0.3 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0104L 1 1 105 75 11512.03 -0.29 528490.91 287547.59 -0.62 0.8 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0104L 2 1 105 75 11522.9 0 528499.36 287540.74 -0.41 0 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0104L 3 1 105 75 11485.96 0.78 528469.58 287562.61 -0.64 -0.3 No violations found at max temp. of 75.00












jaguar_acsr_adapted_rev.1.wir 108 11 1 109 75 11939 -2.05 528772.72 287240.81 -0.17 -0.83 No violations found at max temp. of 75.00








jaguar_acsr_adapted_rev.1.wir 110 3 1 111 75 12154.14 0 528818.9 287030.64 1.87 -1 No violations found at max temp. of 75.00





jaguar_acsr_adapted_rev.1.wir 112 2 1 113 75 12340.15 0 528858.96 286849 1.66 0 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 112 3 1 113 75 12292.05 1.75 528846.68 286895.54 2 0.44 No violations found at max temp. of 75.00


















jaguar_acsr_adapted_rev.1.wir 136 13 1 137 75 15028.44 1.3 529941 284667.81 5.02 -0.01 No violations found at max temp. of 75.00










jaguar_acsr_adapted_rev.1.wir 140 1 1 141 75 15477 -0.11 529589.63 284389.02 -0.35 0.94 No violations found at max temp. of 75.00


























jaguar_acsr_adapted_rev.1.wir 148 11 1 BURY SUBSTATION 0 16246.13 -0.24 528972.05 283939.5 3.33 1 TIN elevation

jaguar_acsr_adapted_rev.1.wir 148 12 1 BURY SUBSTATION 0 16244.5 0 528973.13 283940.74 3.27 0 Point TINPT Interpolated Ground Points

jaguar_acsr_adapted_rev.1.wir 148 13 1 BURY SUBSTATION 0 16246.19 2.2 528970.42 283941.31 3.34 1 TIN elevation





Span Feature

Type Station

(m) Offset "-" Left, "+" Right (m)

3D Clearance (m)

Required Clearance

(m)

Vertical Clearance

Margin (m)

FARCET SUBSTATION to 0001 Wall 4.19 -3.05 1.56 3 -1.44



Appendix 5 Thermal Rating Report for circuit 3942, March Grid – Chatteris Primary 2


Circuit 3924

March Grid – Chatteris Primary 2

Prepared for:

Date: 22nd July 2013


Contents

Introduction ................................................................................................................................ 1 1.0








Circuit Details .............................................................................................................................. 3 3.0




5.2 Steady State Thermal Rating (200mm2 ACSR JAGUAR) .......................................................... 6

5.3 Steady State Thermal Rating (100mm2 ACSR DOG) ................................................................ 7


6.1 Transient State calculatoion (Jaguar ACSR) ............................................................................ 9

6.2 Transient State calculator (Dog ACSR) .................................................................................. 12

Rating Criteria ........................................................................................................................... 14 7.0

Thermal Rating Report .............................................................................................................. 15 8.0




Author: Karthik Mani Date Modified: 22nd


Introduction 1.0

The survey of Circuit 3924, March Grid – Chatteris Primary 2 was performed by Network Mapping on the 5th June 2013. The hardware used was Network Mapping’s ALTM 3100EA Scanner and Rollei AIC Camera System. Using the information that was collected and the load data supplied by UKPN, an analysis was performed for clearance to ground and undercrossing wires. This was performed using Finite Element Analysis techniques within PLS-CADD software. Engineer Karthik Mani 22nd July 2013 Checked Cian Evans 30th July 2013 Approved Paul Richardson 30th July 2013



Temperature Maximum Normal (75°C) Maximum Normal (75°C)

Current (Amps) Jaguar - 653.4 Dog - 400.4


200mm2 ACSR JAGUAR reaches maximum operating temperature (75 deg C) in 56 mins 100mm2 ACSR DOG reaches maximum operating temperature (75 deg C) in 40 mins



Required elevation increases for each clearance and at what temperature the clearance infringes. NOTE: All infringements below rated temperature have been noted in this table

TIN elevation, Interpolated points refer to ground points



Maximum Wire

Temp. (deg C)

Vertical Clearance

Margin (m)

Notes

0080A/0080B 0081A/0081B 0 -1.78 Point Misc Lines

0156A/0156B Chatteris 0 -1.09 TIN elevation

0016A/0016B Whittlesey Primary (Left) 0 -1.32 Point TINPT Interpolated Ground Points

#12 Whittlesey Primary (Right) 0 -1.5 TIN elevation

116 117 10 -0.88 Point Misc Lines

127 128 30 -0.32 Point Vegetation

57 0058A/0058B 44 -0.49 Point Misc Lines




Tower Number Height

increase (m)

Comments

57 1 Height increase between Misc Line and Mainline conductors

0080A/0080B 2.5 Height increase between Misc Line and Mainline conductors

117 1.5 Height increase between Misc Line and Mainline conductors

0127 - 0128 0 Vegetation needs to be cleared

0156A/0156B - Chatteris 0 No correction. Infringement within substation boundary

0016A/0016B - Whittlesey Primary (Left) 0 No correction. Infringement within substation boundary

#12 - Whittlesey Primary (Right) 0 No correction. Infringement within substation boundary


Span Feature

Type Station

(m)

Required Clearance

(m.)

Vertical Clearance

Margin (m)

0003A/0003B to 0004 Misc Lines 59.59 2 -0.1

0003A/0003B to 0004 Misc Lines 64.41 2 -0.21

0003A/0003B to 0004 Misc Lines 70.93 2 -0.18

0003A/0003B to 0004 Misc Lines 81.24 2 0

0004 to 0005 Misc Lines 138.85 2 -0.1

0004 to 0005 Misc Lines 153.6 2 -0.49

0004 to 0005 Misc Lines 163.07 2 -0.67

0004 to 0005 Misc Lines 173.25 2 -0.75

0004 to 0005 Misc Lines 178.64 2 -0.77

0004 to 0005 Misc Lines 185.34 2 -0.59

0004 to 0005 Misc Lines 195.18 2 -0.4

0004 to 0005 Misc Lines 206.52 2 -0.01

0005 to 0006 Misc Lines 254.56 2 -0.04

0005 to 0006 Misc Lines 276.13 2 -0.48

0005 to 0006 Misc Lines 284.69 2 -0.61

0005 to 0006 Misc Lines 290.31 2 -0.51

0005 to 0006 Misc Lines 302.11 2 -0.34

0006 to 0007 Misc Lines 361.3 2 -0.13

0006 to 0007 Misc Lines 375.51 2 -0.72

0006 to 0007 Misc Lines 378.78 2 -0.84

0006 to 0007 Misc Lines 405.07 2 -0.99

0006 to 0007 Misc Lines 406.33 2 -0.94

0006 to 0007 Misc Lines 418.21 2 -0.72

0006 to 0007 Misc Lines 426.71 2 -0.4

0007 to 0008 Misc Lines 456.16 2 -0.11

0007 to 0008 Misc Lines 460.42 2 -0.28

0007 to 0008 Misc Lines 495.67 2 -1.21



0007 to 0008 Misc Lines 500.24 2 -1.25

0007 to 0008 Misc Lines 508.65 2 -1.23

0007 to 0008 Misc Lines 534.85 2 -0.2

0011 to 0012 Misc Lines 908.91 2 -0.33

0013 to 0014 Misc Lines 1127.97 2 -0.21

0018 to 0019 Misc Lines 1645.5 2 -0.48

0018 to 0019 Misc Lines 1652.11 2 -0.24

0067 to 0068/0068B Vegetation 6811.31 3 -0.49

0080A/0080B to 0081A/0081B Misc Lines 8081.38 2 -1.23

0089 to 0090 Misc Lines 8922.17 2 -0.12

0104 to 0105 Misc Lines 10486.18 2 -0.1

0105 to 0106 Misc Lines 10488.17 2 -0.12

0116 to 0117 Misc Lines 20979.83 2 -0.02

0127 to 0128 Misc Lines 22274.66 2 -0.05

0128 to 0129 Misc Lines 22274.66 2 -0.05

0141 to 0142 Vegetation 14061.09 3 -0.77

0156A/0156B to Chatteris Substation 15301.74 2 -1.15

#66 to 0067 Misc Lines 15402.3 2 -0.13

0160 to 0161 Misc Lines 25672.73 2 -0.26

0016A/0016B to Whittlesey Primary (Left) Substation 29985.33 2 -1.81

#12 to Whittlesey Primary (Right) Substation 31296.96 2 -1.55

Blow-out clearance infringments picking up on the parallel circuit between structures 0003A/0003B

and 0019.

Circuit Details 3.0

Circuit 3924, March Grid – Chatteris Primary 2

From March Grid

To Chatteris Primary 2

Conductor Type 200mm2 ACSR JAGUAR (0003A/0003B – Chatteris) 100mm2 ACSR DOG (#66 – 0049/0049A)

Length 30.99 Km

Voltage 33kV





Line Rating assessment for Circuit 3924, March Grid – Chatteris Primary 2 for 75 degrees C under summer climatic parameters. Clearances are checked to 75 degrees C, and any infringing objects below that figure are reported. The following parameters are used per UK Power Network’s advice to calculate the line ampacities: • Wind speed = 0.5 m/sec • Ambient temperature = 20°C • Wind direction = blowing perpendicular to wire • Coefficient of emissivity = 0.5 • Coefficient of solar absorption = 0.5 • Elevation = 20m above sea level • Solar heat gain = 0 Watt/m2





PLS-CADD Version 12.30x64 14:36:07 17th June 2013 Network Mapping Inc Project Name: 3924_March Grid-Chatteris Primery 2_PLS_050413_v1 Criteria notes: Criteria file used is the ENA43-8, created by Network Mapping Engineer - Paul Richardson - Network Mapping CIGRE Brochure 207 method of calculation:




90 (deg)


20 (m)


Conductor description ACSR 200 mm2 18/1 Strands JAGUAR, 100mm2 6/7 Strands DOG


Conductor diameter 1.93 1.415

(cm)

Conductor resistance @ 25 deg C 0.13945 0.2734

(Ohm/km)


(Ohm/km)

Emissivity 0.5


Solar heat input 0 (Watt/m)

Radiative Cooling 12.541 9.195

(Watt/m)

Convective Cooling 59.414 51.334

(Watt/m)



5.2 Steady State Thermal Rating (200mm2 ACSR JAGUAR)




5.3 Steady State Thermal Rating (100mm2 ACSR DOG)





PLS-CADD Version 12.30x64 14:46:37 17th June 2013 Network Mapping Inc Project Name: 3924_March Grid-Chatteris Primery 2_PLS_050413_v1 Criteria notes: Criteria file used is the ENA43-8, created by Network Mapping Engineer - Paul Richardson - Network Mapping CIGRE Brochure 207 method of calculation:




90 (deg)


20 (m)


Conductor description ACSR 200 mm2 18/1 Strands JAGUAR 100 mm2 6/7 Strands DOG


Conductor diameter 1.930 1.415

(cm)


(Ohm/km)


(Ohm/km)

Emissivity 0.5


Heat Capacity of conductor 529.2 278.0

(Watt-s/m-deg C)



6.1 Transient State calculatoion (Jaguar ACSR)

All transient calculations assume: (1) The conductor is initially in thermal equilibrium (steady-state) (2) A step increase in electrical current occurs at time 'zero' (3) Weather conditions are the same before & after the step The initial steady-state current is 326.7 AMPS The current after the step change is 653.4 amperes The total time period of interest is 56.0000 minutes The calculation time interval is 60.0000 seconds Initial steady-state conductor temperature = 32.2 (deg C) For a pre-step steady-state current = 326.7 amperes The total time of interest after the current increases to 653.4 amps is 56.0000 minutes Calculation accuracy would improve if this time interval were reduced Time= 0.0000 sec Conductor temperature= 32.2 (deg C) Time= 60.0000 sec Conductor temperature= 37.0 (deg C) Time= 120.0000 sec Conductor temperature= 41.4 (deg C) Time= 180.0000 sec Conductor temperature= 45.2 (deg C) Time= 240.0000 sec Conductor temperature= 48.6 (deg C) Time= 300.0000 sec Conductor temperature= 51.7 (deg C) Time= 360.0000 sec Conductor temperature= 54.4 (deg C) Time= 420.0000 sec Conductor temperature= 56.8 (deg C) Time= 480.0000 sec Conductor temperature= 58.9 (deg C) Time= 540.0000 sec Conductor temperature= 60.8 (deg C) Time= 600.0000 sec Conductor temperature= 62.4 (deg C) Time= 660.0000 sec Conductor temperature= 63.9 (deg C) Time= 720.0000 sec Conductor temperature= 65.2 (deg C) Time= 780.0000 sec Conductor temperature= 66.3 (deg C) Time= 840.0000 sec Conductor temperature= 67.4 (deg C) Time= 900.0000 sec Conductor temperature= 68.3 (deg C) Time= 960.0000 sec Conductor temperature= 69.1 (deg C) Time= 1020.0000 sec Conductor temperature= 69.8 (deg C) Time= 1080.0000 sec Conductor temperature= 70.4 (deg C) Time= 1140.0000 sec Conductor temperature= 70.9 (deg C) Time= 1200.0000 sec Conductor temperature= 71.4 (deg C) Time= 1260.0000 sec Conductor temperature= 71.8 (deg C) Time= 1320.0000 sec Conductor temperature= 72.2 (deg C) Time= 1380.0000 sec Conductor temperature= 72.5 (deg C) Time= 1440.0000 sec Conductor temperature= 72.8 (deg C) Time= 1500.0000 sec Conductor temperature= 73.1 (deg C) Time= 1560.0000 sec Conductor temperature= 73.3 (deg C) Time= 1620.0000 sec Conductor temperature= 73.5 (deg C) Time= 1680.0000 sec Conductor temperature= 73.7 (deg C) Time= 1740.0000 sec Conductor temperature= 73.8 (deg C) Time= 1800.0000 sec Conductor temperature= 74.0 (deg C)



Time= 1860.0000 sec Conductor temperature= 74.1 (deg C) Time= 1920.0000 sec Conductor temperature= 74.2 (deg C) Time= 1980.0000 sec Conductor temperature= 74.3 (deg C) Time= 2040.0000 sec Conductor temperature= 74.4 (deg C) Time= 2100.0000 sec Conductor temperature= 74.5 (deg C) Time= 2160.0000 sec Conductor temperature= 74.5 (deg C) Time= 2220.0000 sec Conductor temperature= 74.6 (deg C) Time= 2280.0000 sec Conductor temperature= 74.6 (deg C) Time= 2340.0000 sec Conductor temperature= 74.7 (deg C) Time= 2400.0000 sec Conductor temperature= 74.7 (deg C) Time= 2460.0000 sec Conductor temperature= 74.7 (deg C) Time= 2520.0000 sec Conductor temperature= 74.8 (deg C) Time= 2580.0000 sec Conductor temperature= 74.8 (deg C) Time= 2640.0000 sec Conductor temperature= 74.8 (deg C) Time= 2700.0000 sec Conductor temperature= 74.8 (deg C) Time= 2760.0000 sec Conductor temperature= 74.9 (deg C) Time= 2820.0000 sec Conductor temperature= 74.9 (deg C) Time= 2880.0000 sec Conductor temperature= 74.9 (deg C) Time= 2940.0000 sec Conductor temperature= 74.9 (deg C) Time= 3000.0000 sec Conductor temperature= 74.9 (deg C) Time= 3060.0000 sec Conductor temperature= 74.9 (deg C) Time= 3120.0000 sec Conductor temperature= 74.9 (deg C) Time= 3180.0000 sec Conductor temperature= 74.9 (deg C) Time= 3240.0000 sec Conductor temperature= 74.9 (deg C) Time= 3300.0000 sec Conductor temperature= 74.9 (deg C) Time= 3360.0000 sec Conductor temperature= 75.0 (deg C)



6.2 Transient State calculator (Dog ACSR)

All transient calculations assume: (1) The conductor is initially in thermal equilibrium (steady-state) (2) A step increase in electrical current occurs at time 'zero' (3) Weather conditions are the same before & after the step The initial steady-state current is 200.2 AMPS The current after the step change is 400.4 amperes The total time period of interest is 40.0000 minutes The calculation time interval is 60.0000 seconds Initial steady-state conductor temperature = 30.7 (deg C) For a pre-step steady-state current = 200.2 amperes The total time of interest after the current increases to 400.4 amps is 40.0000 minutes Calculation accuracy would improve if this time interval were reduced Time= 0.0000 sec Conductor temperature= 30.7 (deg C) Time= 60.0000 sec Conductor temperature= 37.0 (deg C) Time= 120.0000 sec Conductor temperature= 42.5 (deg C) Time= 180.0000 sec Conductor temperature= 47.2 (deg C) Time= 240.0000 sec Conductor temperature= 51.4 (deg C) Time= 300.0000 sec Conductor temperature= 55.0 (deg C) Time= 360.0000 sec Conductor temperature= 58.1 (deg C) Time= 420.0000 sec Conductor temperature= 60.7 (deg C) Time= 480.0000 sec Conductor temperature= 62.9 (deg C) Time= 540.0000 sec Conductor temperature= 64.8 (deg C) Time= 600.0000 sec Conductor temperature= 66.5 (deg C) Time= 660.0000 sec Conductor temperature= 67.8 (deg C) Time= 720.0000 sec Conductor temperature= 69.0 (deg C) Time= 780.0000 sec Conductor temperature= 69.9 (deg C) Time= 840.0000 sec Conductor temperature= 70.7 (deg C) Time= 900.0000 sec Conductor temperature= 71.4 (deg C) Time= 960.0000 sec Conductor temperature= 72.0 (deg C) Time= 1020.0000 sec Conductor temperature= 72.5 (deg C) Time= 1080.0000 sec Conductor temperature= 72.9 (deg C) Time= 1140.0000 sec Conductor temperature= 73.2 (deg C) Time= 1200.0000 sec Conductor temperature= 73.5 (deg C) Time= 1260.0000 sec Conductor temperature= 73.8 (deg C) Time= 1320.0000 sec Conductor temperature= 74.0 (deg C) Time= 1380.0000 sec Conductor temperature= 74.1 (deg C) Time= 1440.0000 sec Conductor temperature= 74.3 (deg C) Time= 1500.0000 sec Conductor temperature= 74.4 (deg C) Time= 1560.0000 sec Conductor temperature= 74.5 (deg C) Time= 1620.0000 sec Conductor temperature= 74.6 (deg C) Time= 1680.0000 sec Conductor temperature= 74.6 (deg C) Time= 1740.0000 sec Conductor temperature= 74.7 (deg C) Time= 1800.0000 sec Conductor temperature= 74.7 (deg C)



Time= 1860.0000 sec Conductor temperature= 74.8 (deg C) Time= 1920.0000 sec Conductor temperature= 74.8 (deg C) Time= 1980.0000 sec Conductor temperature= 74.8 (deg C) Time= 2040.0000 sec Conductor temperature= 74.9 (deg C) Time= 2100.0000 sec Conductor temperature= 74.9 (deg C) Time= 2160.0000 sec Conductor temperature= 74.9 (deg C) Time= 2220.0000 sec Conductor temperature= 74.9 (deg C) Time= 2280.0000 sec Conductor temperature= 74.9 (deg C) Time= 2340.0000 sec Conductor temperature= 74.9 (deg C) Time= 2400.0000 sec Conductor temperature= 75.0 (deg C)




Rating Criteria 7.0

Feat. Code

Feature Description

Required Clearance Vert. 33kV

(m)

Required Clearance

Horiz. 33kV (m)


10 Structure 0 0


30 Phase 1 0 0

31 Phase 2 0 0

32 Phase 3 0 0


50 Misc Lines 2 0.8




120 Roads 5.8 0.8

128 Bridges 5.8 0.8




140 Fence 3 0.8

141 Wall 3 0.8

143 Building 3 0.8






205 Industrial 0 0



208 Guy Wire 0 0





Criteria notes: Criteria file used is the ENA43-8, created by Network Mapping Engineer - Paul Richardson - Network Mapping Thermal Rating Report Settings: Structure range:0003A/0003B to Whittlesey Primary (Right) Temperature range: 0 (°C) to 75 (°C) Cable condition: Creep FE Maximum offset from wires 1.00 (m) Special Temperature Values: 0 (deg C) indicates that a violation occurs even at the minimum temperature (will be indicated as NG) 75 (deg C) indicates that there is never a violation even at the maximum temperature Results based on vertical clearances to survey points that are within a 1.00 (m) offset from wires. Results based on clearance to ground calculated at 1.00 (m) station intervals along span. If a TIN model is available it is used to calculate the ground level directly below the span and 1.00 (m) left or right of that point. If the program is unable to determine the ground elevations at these points from the TIN model then it will try to construct a profile below the wire. This profile consists of line segments created by connecting survey points with known ground elevations within a 1.00 (m) offset of the wire in order of increasing station. Segments with lengths in excess of 10.00 (m) are not included.







Maximum Wire

Temp. (deg C)

Critical Station

(m)

Critical Offset

(m)

Critical X (m)

Critical Y (m)

Critical Z (m)


Notes

0080A/0080B 0081A/0081B 0 8083.43 -1 536943.63 292093.74 5.75 -0.99 Point Misc Lines

0156A/0156B Chatteris 0 15299.86 -0.33 538683.45 286157.05 1.52 1 TIN elevation

0016A/0016B Whittlesey Primary (Left) 0 29984.76 0 526556.68 296391.76 0.17 -0.03 Point TINPT Interpolated Ground Points

#12 Whittlesey Primary

(Right) 0 31296.32 2.24 526572.86 296382.95 0.32 1 TIN elevation

116 117 10 20978.01 0.43 529879.71 294653.57 7.67 0.42 Point Misc Lines

127 128 30 22256.18 -1.03 531127.76 294907.53 4.99 0.1 Point Vegetation

57 0058A/0058B 44 5879.83 2.07 537386.39 294201.35 7.31 0.82 Point Misc Lines

0003A/0003B 4 75 75.18 3.14 540810.02 296330.09 2.52 0.77 No violations found at max temp. of 75.00







10 11 75 804 0.7 540467.07 295704.02 -0.48 -1 No violations found at max temp. of 75.00



13 14 75 1136.85 3.32 540368.81 295386 -0.32 0.42 No violations found at max temp. of 75.00









20 0021A/0021B 75 1843.18 0.25 540160.1 294711.37 -0.52 -1 No violations found at max temp. of 75.00

0021A/0021B 22 75 1947.9 0 540109.73 294621.9 -0.1 0.04 No violations found at max temp. of 75.00


23 0024A/0024B 75 2163.28 -1.88 539965.55 294461.88 -0.32 -0.67 No violations found at max temp. of 75.00

0024A/0024B 0025A/0025B 75 2255.59 1.81 539888.26 294435.55 -0.05 0.55 No violations found at max temp. of 75.00

0025A/0025B 26 75 2382.01 0.38 539764.17 294458.57 -0.4 -0.84 No violations found at max temp. of 75.00












37 0038/0038B 75 3812.32 -1.78 538369.21 294774.45 0.09 -0.54 No violations found at max temp. of 75.00

0038/0038B 39 75 3926.28 -2.23 538257.97 294799.13 -0.15 -0.98 No violations found at max temp. of 75.00












48 0049/0049A 75 4947 -1.36 537263.12 295027.55 0.77 -0.01 No violations found at max temp. of 75.00

0049/0049A 50 75 5045.3 -1.11 537251.12 294988.44 0.78 0.24 No violations found at max temp. of 75.00

0049/0049A 185 75 28498.26 0.43 537210.45 295040.46 1.46 0.93 No violations found at max temp. of 75.00

50 51 75 5158.98 -0.14 537304 294887.8 0.51 1 No violations found at max temp. of 75.00


52 0053A/0053B 75 5383.01 -1.15 537410.45 294690.67 0.38 0.08 No violations found at max temp. of 75.00

0053A/0053B 54 75 5468.84 -2.12 537430.78 294609.96 0.53 -0.9 No violations found at max temp. of 75.00




0058A/0058B 0059A/0059B 75 5965.24 2.5 537376.54 294116.57 0.41 0.82 No violations found at max temp. of 75.00

0059A/0059B 60 75 6066.97 -2.61 537369.5 294014.95 -0.49 -1 No violations found at max temp. of 75.00








67 0068/0068B 75 6847.03 -0.86 537270.74 293241.16 -0.93 0.29 No violations found at max temp. of 75.00

0068/0068B 69 75 6933.23 -0.5 537241.59 293163.15 -0.96 0.71 No violations found at max temp. of 75.00





71 0072A/0072B 75 7189.63 0.64 537072.95 292970.02 -0.73 -0.54 No violations found at max temp. of 75.00

0072A/0072B 73 75 7288.44 0 537039.65 292880.78 -0.38 -0.02 No violations found at max temp. of 75.00






78 0079A/0079B 75 7886.01 -1.92 536955.2 292289.21 -0.52 -0.73 No violations found at max temp. of 75.00


0081A/0081B 82 75 8199.41 0.25 536920.38 291980.21 -0.51 -0.94 No violations found at max temp. of 75.00










91 0092A/0092B 75 9152.33 0.85 536783.63 291037.17 -0.25 0.85 No violations found at max temp. of 75.00












101 0102A/0102B 75 10127.19 0 536656.97 290070.57 0.13 -0.01 No violations found at max temp. of 75.00

0102A/0102B 103 75 10227.83 2.21 536651.56 289970.34 0.09 1 No violations found at max temp. of 75.00











113 0114A/0114B 75 11366.51 -0.24 536736.12 288834.82 -0.9 1 No violations found at max temp. of 75.00

0114A/0114B 115 75 11475.12 0 536722.84 288729.2 -0.57 0.01 No violations found at max temp. of 75.00





0119A/0119B 0120A/0120B 75 11957.96 -0.76 536563.74 288273.32 -0.53 -0.75 No violations found at max temp. of 75.00

0120A/0120B 121 75 12052.24 2.14 536556.82 288181.85 0.1 1 No violations found at max temp. of 75.00









127 0128A/0128B 75 12734.93 2.38 536661.2 287507.21 -0.2 1 No violations found at max temp. of 75.00

0128A/0128B 129 75 12819.79 2.34 536710.59 287459.04 -0.3 1 No violations found at max temp. of 75.00


130 0131A/0131B 75 12998.23 0 536888.88 287451.37 -0.41 0.02 No violations found at max temp. of 75.00

0131A/0131B 132 75 13070.46 -2.05 536954.26 287426.83 -0.14 -0.81 No violations found at max temp. of 75.00




135 0136A/0136B 75 13452.18 0 537260.68 287199.19 -0.26 0 No violations found at max temp. of 75.00

0136A/0136B 137 75 13561.26 0 537344.53 287129.68 -0.49 0 No violations found at max temp. of 75.00



139 0140A/0140B 75 13844.56 -2.12 537553.93 286938.84 -0.35 -1 No violations found at max temp. of 75.00

0140A/0140B 141 75 13941.24 1.15 537615.01 286864.35 0.33 -0.1 No violations found at max temp. of 75.00






146 0147A/0147B 75 14485.02 -0.05 537931.58 286422.22 7.03 -0.07 No violations found at max temp. of 75.00

0147A/0147B 148 75 14588.31 0 538011.31 286365.31 -0.4 -0.02 No violations found at max temp. of 75.00





152 0153A/0153B 75 15060 -1.61 538462.27 286226.99 0.05 -0.31 No violations found at max temp. of 75.00

0153A/0153B 154 75 15150.58 0 538549.42 286203.83 0.02 0.01 No violations found at max temp. of 75.00

154 0155A/0155B 75 15223.41 -0.17 538621.56 286193.82 0.61 0.95 No violations found at max temp. of 75.00




#66 67 75 15457.44 -0.76 524473.95 295688.81 1.07 0.44 No violations found at max temp. of 75.00









75 0076A/0076B 75 16421.27 0 525404.93 295444.84 -0.3 0 No violations found at max temp. of 75.00

0076A/0076B 77 75 16524.3 0 525503.02 295413.32 0.07 0 No violations found at max temp. of 75.00



79 0080A/0080B 75 16887.41 0.83 525849.08 295303.37 -1.85 0.79 No violations found at max temp. of 75.00

0080A/0080B 0081/0081B 75 16993.99 0 525953.12 295282.02 -0.25 -0.01 No violations found at max temp. of 75.00


0081/0081B 82 75 17109.15 -0.4 526067.46 295268.29 -0.1 0.82 No violations found at max temp. of 75.00



84 0085/0085B 75 17480.68 -0.23 526435.93 295220.65 -0.33 1 No violations found at max temp. of 75.00

0085/0085B 86 75 17594.98 0 526549.27 295205.89 -0.59 0 No violations found at max temp. of 75.00

86 87 75 17694.78 0 526648.36 295194 -0.34 0 No violations found at max temp. of 75.00



88 89 75 17911.8 0 526863.55 295166.03 0 0.01 No violations found at max temp. of 75.00





91 92 75 18245 0 527193.84 295122.54 -0.4 0 No violations found at max temp. of 75.00



94 0095/0095B 75 18546.25 -1.94 527490.39 295069.37 -0.28 -0.76 No violations found at max temp. of 75.00

0095/0095B 96 75 18664.53 0 527606 295044.4 -0.99 0 No violations found at max temp. of 75.00






























124 125 75 21913.51 -1.47 530789.61 294870.92 -1 -0.4 No violations found at max temp. of 75.00














139 140 75 23542 2.08 532412.83 294917.85 -0.32 1 No violations found at max temp. of 75.00









148 0149/0149B 75 24503.26 0 533370.27 295003.65 -0.39 0 No violations found at max temp. of 75.00



0149/0149B 150 75 24623.39 0 533490.08 295005.71 0.15 0 No violations found at max temp. of 75.00






155 0156/0157 75 25308.91 0 534174.83 294973.28 -0.97 0 No violations found at max temp. of 75.00

0156/0157 158 75 25427.54 0 534293.32 294967.63 -0.68 0 No violations found at max temp. of 75.00






163 164 75 26068.2 0 534888.94 295139 0.17 -0.02 No violations found at max temp. of 75.00




167 0168A/0168B 75 26525.1 -0.64 535293.57 295351.21 -0.62 0.58 No violations found at max temp. of 75.00

0168A/0168B 169 75 26624.35 1.67 535384.38 295353.29 -1.75 0.57 No violations found at max temp. of 75.00


170 171 75 26856.57 -1.1 535605 295280.79 0 -0.04 No violations found at max temp. of 75.00




174 175 75 27322 0.25 536044.32 295127.07 -0.5 -0.84 No violations found at max temp. of 75.00














2 0003A/0003B 75 28804.71 0.92 525920.56 295481.14 -0.02 -0.15 No violations found at max temp. of 75.00


4 0005A/0005B 75 28975.43 2 525958.2 295646.29 0.64 0.91 No violations found at max temp. of 75.00




8 9 75 29317.01 0 526105.82 295954 -0.23 0 No violations found at max temp. of 75.00







15 0016A/0016B 75 29962.89 0 526546.44 296372.44 0.07 0.95 No violations found at max temp. of 75.00

0001A/0001B 2 75 30138.15 0 526702.76 295237.51 -0.69 0 No violations found at max temp. of 75.00











10 0011/0011R 75 31157.92 -0.94 526576.17 296249.39 1.01 -0.94 No violations found at max temp. of 75.00

0011/0011R #12 75 31236.72 -0.36 526567.02 296327.65 -0.59 1 No violations found at max temp. of 75.00



Ahead span of structure 0080A/0080B, station 8083.43 (m) Maximum wire temperature < 0 (deg C), NG Point Misc Lines , Aborted critical point search since wire can't clear point at 0 (deg C). Red line goes from controlling point to required height above it. Thick dotted blue line is wire position at maximum temperature.



Figure 1: Plan view of infringement between structures 0080A/0080B and 0081A/0081B



Ahead span of structure 0156A/0156B, station 15299.86 (m) Maximum wire temperature < 0 (deg C), NG TIN elevation, Aborted critical point search since wire can't clear point at 0 (deg C). Red line goes from controlling point to required height above it. Thick dotted blue line is wire position at maximum temperature.



Figure 2: Plan view of infringement between structures 0156A/0156B and Chatteris



Ahead span of structure 0016A/0016B, station 29984.76 (m) Maximum wire temperature < 0 (deg C), NG Point TINPT Interpolated Ground Points , Aborted critical point search since wire can't clear point at 0 (deg C). Red line goes from controlling point to required height above it. Thick dotted blue line is wire position at maximum temperature.



Figure 3: Plan view of infringement between structures 0016A/0016B and Whittlesey Primary (Left)



Ahead span of structure #12, station 31296.32 (m) Maximum wire temperature < 0 (deg C), NG TIN elevation, Aborted critical point search since wire can't clear point at 0 (deg C). Red line goes from controlling point to required height above it. Thick dotted blue line is wire position at maximum temperature.



Figure 4: Plan view of infringement between structures #12 and Whittlesey Primary (Right)



Ahead span of structure 0127, station 22256.18 (m) Maximum wire temperature 30 (deg C), Point Vegetation Red line goes from controlling point to required height above it. Thick dotted blue line is wire position at maximum temperature.



Figure 7: Plan view of infringement between structures 0057 and 0058A/0058B





Cable File Name Back

Structure Number

Set No.

Phase No.


Maximum Wire

Temp. (deg C)

Critical Station

(m)

Critical Offset

(m)

Critical X (m)

Critical Y (m)

Critical Z (m)


Notes

jaguar_acsr_adapted_rev.1.wir 0003A/0003B 11 1 4 75 61.39 0 540821.13 296338.84 2.49 -0.26 No violations found at max temp. of 75.00


jaguar_acsr_adapted_rev.1.wir 0003A/0003B 13 1 4 75 75.18 3.14 540810.02 296330.09 2.52 0.77 No violations found at max temp. of 75.00


jaguar_acsr_adapted_rev.1.wir 4 5 1 5 75 170.07 3.3 540749 296257.56 2.79 1 No violations found at max temp. of 75.00

















jaguar_acsr_adapted_rev.1.wir 10 4 1 11 75 804 0.7 540467.07 295704.02 -0.48 -1 No violations found at max temp. of 75.00













jaguar_acsr_adapted_rev.1.wir 13 6 1 14 75 1136.85 3.32 540368.81 295386 -0.32 0.42 No violations found at max temp. of 75.00





















jaguar_acsr_adapted_rev.1.wir 20 1 1 0021A/0021B 75 1864.75 -0.54 540153.7 294690.77 -0.53 0.8 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 20 2 1 0021A/0021B 75 1846.26 0 540159.32 294708.39 -0.53 0.02 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 20 3 1 0021A/0021B 75 1843.18 0.25 540160.1 294711.37 -0.52 -1 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0021A/0021B 11 1 22 75 1935.15 -0.98 540118.97 294630.74 -0.55 0.35 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0021A/0021B 12 1 22 75 1947.9 0 540109.73 294621.9 -0.1 0.04 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0021A/0021B 13 1 22 75 1937.46 1.87 540115.31 294630.92 -0.48 0.61 No violations found at max temp. of 75.00




jaguar_acsr_adapted_rev.1.wir 23 1 1 0024A/0024B 75 2163.28 -1.88 539965.55 294461.88 -0.32 -0.67 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 23 2 1 0024A/0024B 75 2163.75 0.25 539963.67 294462.99 -0.32 0.29 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 23 3 1 0024A/0024B 75 2163.75 0.25 539963.67 294462.99 -0.32 -0.88 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0024A/0024B 11 1 0025A/0025B 75 2280.06 -1.75 539863.53 294435.76 -0.26 -0.38 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0024A/0024B 12 1 0025A/0025B 75 2252.81 0.93 539890.87 294434.26 -0.23 0.97 No violations found at max temp. of 75.00


jaguar_acsr_adapted_rev.1.wir 0025A/0025B 11 1 26 75 2379.58 -1.27 539766.13 294456.38 0.11 -0.03 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0025A/0025B 12 1 26 75 2379.82 -0.34 539766.12 294457.34 -0.01 -0.34 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0025A/0025B 13 1 26 75 2382.01 0.38 539764.17 294458.57 -0.4 -0.84 No violations found at max temp. of 75.00




































jaguar_acsr_adapted_rev.1.wir 37 1 1 0038/0038B 75 3812.32 -1.78 538369.21 294774.45 0.09 -0.54 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 37 2 1 0038/0038B 75 3816.06 0 538365.96 294777.01 0.04 0 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 37 3 1 0038/0038B 75 3831.79 0.46 538350.73 294780.97 0.17 -0.84 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0038/0038B 11 1 39 75 3926.28 -2.23 538257.97 294799.13 -0.15 -0.98 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0038/0038B 12 1 39 75 3926.3 -0.88 538258.24 294800.46 -0.22 -0.88 No violations found at max temp. of 75.00



jaguar_acsr_adapted_rev.1.wir 0038/0038B 13 1 39 75 3925.17 1.57 538259.88 294802.6 -0.08 0.31 No violations found at max temp. of 75.00






























jaguar_acsr_adapted_rev.1.wir 48 1 1 0049/0049A 75 4947 -1.36 537263.12 295027.55 0.77 -0.01 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 48 2 1 0049/0049A 75 4959.71 -0.36 537250.97 295031.39 0.94 -0.27 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 48 3 1 0049/0049A 75 4963.59 0.54 537247.39 295033.15 1.15 -0.61 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0049/0049A 11 1 50 75 5001.04 0.59 537228.74 295026.65 1.17 -0.85 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0049/0049A 12 1 50 75 5044.62 0 537249.82 294988.51 0.79 0 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0049/0049A 13 1 50 75 5045.3 -1.11 537251.12 294988.44 0.78 0.24 No violations found at max temp. of 75.00

0.10ali_sca.wir 0049/0049A 14 1 185 75 28498.26 0.43 537210.45 295040.46 1.46 0.93 No violations found at max temp. of 75.00

0.10ali_sca.wir 0049/0049A 15 1 185 75 28495.9 0 537208.23 295041.37 1.27 0.3 No violations found at max temp. of 75.00

0.10ali_sca.wir 0049/0049A 16 1 185 75 28489.71 -1.13 537202.41 295043.76 0.76 0.02 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 50 1 1 51 75 5158.98 -0.14 537304 294887.8 0.51 1 No violations found at max temp. of 75.00






jaguar_acsr_adapted_rev.1.wir 52 1 1 0053A/0053B 75 5383.01 -1.15 537410.45 294690.67 0.38 0.08 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 52 2 1 0053A/0053B 75 5382.45 0 537409.17 294690.62 0.39 0.02 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 52 3 1 0053A/0053B 75 5428.15 1.17 537429.7 294649.78 0.56 -0.05 No violations found at max temp. of 75.00


jaguar_acsr_adapted_rev.1.wir 0053A/0053B 12 1 54 75 5471.07 0 537428.47 294607.94 0.54 0 No violations found at max temp. of 75.00













jaguar_acsr_adapted_rev.1.wir 57 1 1 0058A/0058B 48 5878.05 -1.84 537390.45 294202.73 7.29 -0.59 Point Misc Lines

jaguar_acsr_adapted_rev.1.wir 57 2 1 0058A/0058B 47 5878.47 0.18 537388.4 294202.51 7.31 0.18 Point Misc Lines

jaguar_acsr_adapted_rev.1.wir 57 3 1 0058A/0058B 44 5879.83 2.07 537386.39 294201.35 7.31 0.82 Point Misc Lines

jaguar_acsr_adapted_rev.1.wir 0058A/0058B 11 1 0059A/0059B 75 5963.48 -0.82 537380.05 294117.9 0.38 0.83 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0058A/0058B 12 1 0059A/0059B 75 5964.39 0.95 537378.19 294117.22 0.4 0.95 No violations found at max temp. of 75.00


jaguar_acsr_adapted_rev.1.wir 0059A/0059B 11 1 60 75 6066.97 -2.61 537369.5 294014.95 -0.49 -1 No violations found at max temp. of 75.00


jaguar_acsr_adapted_rev.1.wir 0059A/0059B 13 1 60 75 6065.93 0.64 537366.39 294016.35 -0.51 -1 No violations found at max temp. of 75.00
























jaguar_acsr_adapted_rev.1.wir 67 1 1 0068/0068B 75 6847.03 -0.86 537270.74 293241.16 -0.93 0.29 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 67 2 1 0068/0068B 75 6843.31 0.79 537269.64 293245.07 -0.6 0.76 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 67 3 1 0068/0068B 75 6843.33 2.08 537268.36 293245.24 -0.45 0.89 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0068/0068B 11 1 69 75 6933.23 -0.5 537241.59 293163.15 -0.96 0.71 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0068/0068B 12 1 69 75 6943.55 0 537234.44 293155.7 -0.88 0.06 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0068/0068B 13 1 69 75 6951.67 0.4 537228.81 293149.83 -0.82 -0.75 No violations found at max temp. of 75.00








jaguar_acsr_adapted_rev.1.wir 71 2 1 0072A/0072B 75 7177.09 0 537081.65 292979.07 -0.77 -0.02 No violations found at max temp. of 75.00



jaguar_acsr_adapted_rev.1.wir 0072A/0072B 12 1 73 75 7288.44 0 537039.65 292880.78 -0.38 -0.02 No violations found at max temp. of 75.00

















jaguar_acsr_adapted_rev.1.wir 77 2 1 78 75 7782 0 536968.71 292392.36 -0.63 0.02 No violations found at max temp. of 75.00








jaguar_acsr_adapted_rev.1.wir 0080A/0080B 11 1 0081A/0081B 0 8081.38 -1.51 536944.58 292095.62 6.01 -0.24 Point Misc Lines

jaguar_acsr_adapted_rev.1.wir 0080A/0080B 12 1 0081A/0081B 0 8083.43 -1 536943.63 292093.74 5.75 -0.99 Point Misc Lines





















jaguar_acsr_adapted_rev.1.wir 96 1 1 97 75 9579.78 -2 536730.4 290613.04 3.79 -0.86 No violations found at max temp. of 75.00
















jaguar_acsr_adapted_rev.1.wir 101 2 1 0102A/0102B 75 10127.19 0 536656.97 290070.57 0.13 -0.01 No violations found at max temp. of 75.00


jaguar_acsr_adapted_rev.1.wir 0102A/0102B 11 1 103 75 10227.96 -0.21 536653.98 289970.39 0.08 1 No violations found at max temp. of 75.00


jaguar_acsr_adapted_rev.1.wir 0102A/0102B 13 1 103 75 10227.83 2.21 536651.56 289970.34 0.09 1 No violations found at max temp. of 75.00











jaguar_acsr_adapted_rev.1.wir 105 3 1 106 75 10496 1.91 536672.47 289703 -0.29 0.74 No violations found at max temp. of 75.00
























jaguar_acsr_adapted_rev.1.wir 113 1 1 0114A/0114B 75 11366.51 -0.24 536736.12 288834.82 -0.9 1 No violations found at max temp. of 75.00


jaguar_acsr_adapted_rev.1.wir 113 3 1 0114A/0114B 75 11366.23 2.24 536733.62 288834.92 -0.9 1 No violations found at max temp. of 75.00













jaguar_acsr_adapted_rev.1.wir 118 1 1 0119A/0119B 75 11869.54 -0.22 536592.65 288356.88 -0.27 1 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 118 2 1 0119A/0119B 75 11878.13 0 536589.59 288348.85 -0.17 0 No violations found at max temp. of 75.00






jaguar_acsr_adapted_rev.1.wir 0120A/0120B 12 1 121 75 12051.49 0 536558.81 288182.93 0.08 0.01 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0120A/0120B 13 1 121 75 12052.24 2.14 536556.82 288181.85 0.1 1 No violations found at max temp. of 75.00






















jaguar_acsr_adapted_rev.1.wir 127 2 1 0128A/0128B 75 12731.99 0 536663.1 287510.47 -0.24 -0.01 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 127 3 1 0128A/0128B 75 12734.93 2.38 536661.2 287507.21 -0.2 1 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0128A/0128B 11 1 129 75 12821.05 -0.33 536712 287461.63 -0.31 1 No violations found at max temp. of 75.00


jaguar_acsr_adapted_rev.1.wir 0128A/0128B 13 1 129 75 12819.79 2.34 536710.59 287459.04 -0.3 1 No violations found at max temp. of 75.00






















jaguar_acsr_adapted_rev.1.wir 135 2 1 0136A/0136B 75 13452.18 0 537260.68 287199.19 -0.26 0 No violations found at max temp. of 75.00



jaguar_acsr_adapted_rev.1.wir 0136A/0136B 12 1 137 75 13561.26 0 537344.53 287129.68 -0.49 0 No violations found at max temp. of 75.00








jaguar_acsr_adapted_rev.1.wir 139 1 1 0140A/0140B 75 13844.56 -2.12 537553.93 286938.84 -0.35 -1 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 139 2 1 0140A/0140B 75 13841.17 0 537550 286939.59 -0.37 0.01 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 139 3 1 0140A/0140B 75 13844.44 0.22 537552.24 286937.21 -0.36 -1 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0140A/0140B 11 1 141 75 13947.61 -0.55 537620.09 286860.15 0.14 0.67 No violations found at max temp. of 75.00




jaguar_acsr_adapted_rev.1.wir 0140A/0140B 13 1 141 75 13941.24 1.15 537615.01 286864.35 0.33 -0.1 No violations found at max temp. of 75.00




jaguar_acsr_adapted_rev.1.wir 142 1 1 143 75 14137 -0.52 537729.96 286705.89 0.59 0.59 No violations found at max temp. of 75.00












jaguar_acsr_adapted_rev.1.wir 146 1 1 0147A/0147B 75 14484.93 -1.3 537932.54 286423.02 7.09 -0.17 No violations found at max temp. of 75.00


jaguar_acsr_adapted_rev.1.wir 146 3 1 0147A/0147B 75 14484.65 0.21 537931.15 286422.37 7 -0.97 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0147A/0147B 11 1 148 75 14603.91 -0.44 538026.32 286361.05 0.09 0.68 No violations found at max temp. of 75.00



jaguar_acsr_adapted_rev.1.wir 148 1 1 149 75 14656.8 -1 538076.95 286345.73 -0.08 0.09 No violations found at max temp. of 75.00














jaguar_acsr_adapted_rev.1.wir 152 1 1 0153A/0153B 75 15060 -1.61 538462.27 286226.99 0.05 -0.31 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 152 2 1 0153A/0153B 75 15060.13 0 538461.91 286225.42 0.03 -0.01 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 152 3 1 0153A/0153B 75 15061.04 1.86 538462.2 286223.37 0.07 0.67 No violations found at max temp. of 75.00

jaguar_acsr_adapted_rev.1.wir 0153A/0153B 11 1 154 75 15152.68 -2.26 538551.82 286205.78 0.03 -1 No violations found at max temp. of 75.00


jaguar_acsr_adapted_rev.1.wir 0153A/0153B 13 1 154 75 15152.56 0.18 538551.36 286203.38 0.02 -1 No violations found at max temp. of 75.00




jaguar_acsr_adapted_rev.1.wir 0155A/0155B 11 1 0156A/0156B 75 15262.08 -2.05 538657.1 286181.71 2.04 -0.59 No violations found at max temp. of 75.00



jaguar_acsr_adapted_rev.1.wir 0156A/0156B 11 1 Chatteris 0 15299.86 -0.33 538683.45 286157.05 1.52 1 TIN elevation

jaguar_acsr_adapted_rev.1.wir 0156A/0156B 12 1 Chatteris 0 15299.94 1.02 538683.19 286155.72 1.53 1 TIN elevation

jaguar_acsr_adapted_rev.1.wir 0156A/0156B 13 1 Chatteris 0 15300.01 2.38 538682.91 286154.38 1.54 1 TIN elevation

0.10ali_sca.wir #66 11 1 67 75 15457.44 -0.76 524473.95 295688.81 1.07 0.44 No violations found at max temp. of 75.00

0.10ali_sca.wir #66 12 1 67 75 15458.65 0.78 524474.91 295687.09 1.11 0.8 No violations found at max temp. of 75.00

0.10ali_sca.wir #66 13 1 67 75 15458.65 0.78 524474.91 295687.09 1.11 -0.49 No violations found at max temp. of 75.00

0.10ali_sca.wir 67 1 1 68 75 15581.35 -0.3 524596.15 295668.25 0.86 0.83 No violations found at max temp. of 75.00

0.10ali_sca.wir 67 2 1 68 75 15570.89 0.94 524585.63 295668.78 0.83 0.97 No violations found at max temp. of 75.00







0.10ali_sca.wir 69 11 1 70 75 15778.49 -1.69 524789.59 295630.53 -0.33 -0.59 No violations found at max temp. of 75.00

0.10ali_sca.wir 69 12 1 70 75 15778.87 0 524789.48 295628.8 -0.33 0 No violations found at max temp. of 75.00

0.10ali_sca.wir 69 13 1 70 75 15742.45 0 524754.5 295638.96 -0.18 -1 No violations found at max temp. of 75.00

0.10ali_sca.wir 70 1 1 71 75 15841.87 -0.09 524850.01 295611.32 -0.22 0.96 No violations found at max temp. of 75.00


0.10ali_sca.wir 70 3 1 71 75 15883.52 2.07 524889.42 295597.69 -0.24 1 No violations found at max temp. of 75.00



0.10ali_sca.wir 71 3 1 72 75 15974.91 0.09 524977.75 295574.15 -0.33 -1 No violations found at max temp. of 75.00

0.10ali_sca.wir 72 1 1 73 75 16073.09 -0.06 525072.03 295546.79 -0.52 1 No violations found at max temp. of 75.00





0.10ali_sca.wir 73 3 1 74 75 16195.79 0.77 525189.56 295511.52 -0.58 -0.26 No violations found at max temp. of 75.00



0.10ali_sca.wir 74 13 1 75 75 16331.78 1.41 525319.3 295470.84 -0.35 0.35 No violations found at max temp. of 75.00

0.10ali_sca.wir 75 1 1 0076A/0076B 75 16418.49 -0.25 525402.37 295445.93 -0.32 1 No violations found at max temp. of 75.00

0.10ali_sca.wir 75 2 1 0076A/0076B 75 16421.27 0 525404.93 295444.84 -0.3 0 No violations found at max temp. of 75.00

0.10ali_sca.wir 75 3 1 0076A/0076B 75 16404.22 0.66 525388.51 295449.46 -0.41 -0.54 No violations found at max temp. of 75.00

0.10ali_sca.wir 0076A/0076B 11 1 77 75 16509.1 -0.28 525488.63 295418.2 0.35 0.99 No violations found at max temp. of 75.00

0.10ali_sca.wir 0076A/0076B 12 1 77 75 16524.3 0 525503.02 295413.32 0.07 0 No violations found at max temp. of 75.00

0.10ali_sca.wir 0076A/0076B 13 1 77 75 16511.06 2.19 525489.74 295415.26 0.47 0.87 No violations found at max temp. of 75.00

0.10ali_sca.wir 77 1 1 78 75 16644.99 -2.05 525618.66 295378.72 -0.15 -1 No violations found at max temp. of 75.00






0.10ali_sca.wir 78 2 1 79 75 16759.34 0 525727.19 295342.65 -0.29 -0.03 No violations found at max temp. of 75.00


0.10ali_sca.wir 79 1 1 0080A/0080B 75 16870.09 -1.98 525833.45 295311.35 -0.42 -0.82 No violations found at max temp. of 75.00

0.10ali_sca.wir 79 2 1 0080A/0080B 75 16887.41 0.83 525849.08 295303.37 -1.85 0.79 No violations found at max temp. of 75.00


0.10ali_sca.wir 0080A/0080B 11 1 0081/0081B 75 16994.24 -1.38 525953.54 295283.35 -0.25 -0.03 No violations found at max temp. of 75.00

0.10ali_sca.wir 0080A/0080B 12 1 0081/0081B 75 16993.99 0 525953.12 295282.02 -0.25 -0.01 No violations found at max temp. of 75.00

0.10ali_sca.wir 0080A/0080B 13 1 0081/0081B 75 16942.94 1.82 525902.25 295286.6 -0.28 0.46 No violations found at max temp. of 75.00


0.10ali_sca.wir 0080A/0080B 15 1 1 75 28650.56 -0.36 525900.18 295328.33 0.37 -0.4 No violations found at max temp. of 75.00

0.10ali_sca.wir 0080A/0080B 16 1 1 75 28653.72 0.18 525901.12 295331.4 0.31 -0.9 No violations found at max temp. of 75.00

0.10ali_sca.wir 0081/0081B 11 1 82 75 17109.15 -0.4 526067.46 295268.29 -0.1 0.82 No violations found at max temp. of 75.00

0.10ali_sca.wir 0081/0081B 12 1 82 75 17109.15 -0.4 526067.46 295268.29 -0.1 -0.4 No violations found at max temp. of 75.00

0.10ali_sca.wir 0081/0081B 13 1 82 75 17114.07 0.23 526072.27 295267.07 -0.11 -1 No violations found at max temp. of 75.00

0.10ali_sca.wir 82 1 1 83 75 17234.79 -2.05 526192.34 295254.27 0.48 -1 No violations found at max temp. of 75.00

0.10ali_sca.wir 82 2 1 83 75 17234.12 0 526191.41 295252.33 0.47 0 No violations found at max temp. of 75.00

0.10ali_sca.wir 82 3 1 83 75 17235.8 0.05 526193.07 295252.06 0.47 -1 No violations found at max temp. of 75.00

0.10ali_sca.wir 83 1 1 84 75 17300.68 -1.8 526257.64 295245.5 0.56 -0.75 No violations found at max temp. of 75.00



0.10ali_sca.wir 84 1 1 0085/0085B 75 17480.68 -0.23 526435.93 295220.65 -0.33 1 No violations found at max temp. of 75.00

0.10ali_sca.wir 84 2 1 0085/0085B 75 17481.99 0 526437.19 295220.25 -0.33 0 No violations found at max temp. of 75.00

0.10ali_sca.wir 84 3 1 0085/0085B 75 17530.73 1.45 526485.32 295212.4 -0.13 0.08 No violations found at max temp. of 75.00

0.10ali_sca.wir 0085/0085B 11 1 86 75 17571.17 -1.6 526525.83 295210.39 -0.07 -0.3 No violations found at max temp. of 75.00

0.10ali_sca.wir 0085/0085B 12 1 86 75 17594.98 0 526549.27 295205.89 -0.59 0 No violations found at max temp. of 75.00



0.10ali_sca.wir 0085/0085B 13 1 86 75 17564.82 1.33 526519.17 295208.26 0.12 0.01 No violations found at max temp. of 75.00


0.10ali_sca.wir 86 2 1 87 75 17694.78 0 526648.36 295194 -0.34 0 No violations found at max temp. of 75.00



0.10ali_sca.wir 87 12 1 88 75 17797.32 0 526750.09 295181.17 -0.01 0.01 No violations found at max temp. of 75.00


0.10ali_sca.wir 87 14 1 0001A/0001B 75 30091.16 -0.15 526707.92 295190.81 -0.33 1 No violations found at max temp. of 75.00

0.10ali_sca.wir 87 15 1 0001A/0001B 75 30093.56 0 526707.88 295193.21 -0.32 -0.02 No violations found at max temp. of 75.00

0.10ali_sca.wir 87 16 1 0001A/0001B 75 30091.14 2.26 526710.32 295190.98 -0.33 1 No violations found at max temp. of 75.00


0.10ali_sca.wir 88 2 1 89 75 17911.8 0 526863.55 295166.03 0 0.01 No violations found at max temp. of 75.00

0.10ali_sca.wir 88 3 1 89 75 17865 0.44 526817.06 295171.39 -0.59 -0.61 No violations found at max temp. of 75.00








0.10ali_sca.wir 91 12 1 92 75 18245 0 527193.84 295122.54 -0.4 0 No violations found at max temp. of 75.00










0.10ali_sca.wir 94 1 1 0095/0095B 75 18546.25 -1.94 527490.39 295069.37 -0.28 -0.76 No violations found at max temp. of 75.00

0.10ali_sca.wir 94 2 1 0095/0095B 75 18567.91 0 527511.22 295063.11 -0.09 0.01 No violations found at max temp. of 75.00

0.10ali_sca.wir 94 3 1 0095/0095B 75 18525.25 1.63 527469.1 295070.09 -0.6 0.5 No violations found at max temp. of 75.00

0.10ali_sca.wir 0095/0095B 11 1 96 75 18610.9 -0.57 527553.45 295055.08 -0.27 0.73 No violations found at max temp. of 75.00

0.10ali_sca.wir 0095/0095B 12 1 96 75 18664.53 0 527606 295044.4 -0.99 0 No violations found at max temp. of 75.00

0.10ali_sca.wir 0095/0095B 13 1 96 75 18612.09 2.3 527554.08 295052.04 -0.27 0.91 No violations found at max temp. of 75.00














0.10ali_sca.wir 100 2 1 101 75 19236.28 0 528168 294939.19 -0.95 0 No violations found at max temp. of 75.00

0.10ali_sca.wir 100 3 1 101 75 19279.34 2.02 528209.94 294929.25 -1 0.96 No violations found at max temp. of 75.00











0.10ali_sca.wir 103 3 1 104 75 19585.64 0.11 528511.7 294876.66 0.18 -0.91 No violations found at max temp. of 75.00














0.10ali_sca.wir 108 2 1 109 75 20110.44 0 529027.52 294780.01 0 0 No violations found at max temp. of 75.00



0.10ali_sca.wir 109 2 1 110 75 20233.69 0 529148.76 294757.8 0.36 -0.01 No violations found at max temp. of 75.00

















0.10ali_sca.wir 114 2 1 115 75 20751.71 0.73 529657.64 294661 -0.47 0.73 No violations found at max temp. of 75.00





0.10ali_sca.wir 116 11 1 117 16 20979.83 -1.75 529880.99 294656.11 7.67 -0.72 Point Misc Lines

0.10ali_sca.wir 116 12 1 117 10 20978.01 0.43 529879.71 294653.57 7.67 0.42 Point Misc Lines

0.10ali_sca.wir 116 13 1 117 13 20978.01 0.43 529879.71 294653.57 7.67 -0.66 Point Misc Lines
























0.10ali_sca.wir 124 1 1 125 75 21913.51 -1.47 530789.61 294870.92 -1 -0.4 No violations found at max temp. of 75.00





0.10ali_sca.wir 125 3 1 126 75 22084 0 530955.75 294909.22 -0.62 -1 No violations found at max temp. of 75.00




0.10ali_sca.wir 127 1 1 128 30 22256.18 -1.03 531127.76 294907.53 4.99 0.1 Point Vegetation








































0.10ali_sca.wir 139 3 1 140 75 23542 2.08 532412.83 294917.85 -0.32 1 No violations found at max temp. of 75.00




















0.10ali_sca.wir 145 3 1 146 75 24153 1.29 533021.5 294971.34 -0.08 0.21 No violations found at max temp. of 75.00







0.10ali_sca.wir 148 1 1 0149/0149B 75 24552.58 -1.55 533419.24 295009.66 -0.21 -0.22 No violations found at max temp. of 75.00

0.10ali_sca.wir 148 2 1 0149/0149B 75 24503.26 0 533370.27 295003.65 -0.39 0 No violations found at max temp. of 75.00

0.10ali_sca.wir 148 3 1 0149/0149B 75 24555.76 1.22 533422.66 295007.19 -0.2 -0.14 No violations found at max temp. of 75.00

0.10ali_sca.wir 0149/0149B 11 1 150 75 24571.17 -1.45 533438 295009.79 0.24 -0.11 No violations found at max temp. of 75.00

0.10ali_sca.wir 0149/0149B 12 1 150 75 24623.39 0 533490.08 295005.71 0.15 0 No violations found at max temp. of 75.00

0.10ali_sca.wir 0149/0149B 13 1 150 75 24570.9 1.85 533437.56 295006.51 0.24 0.53 No violations found at max temp. of 75.00




0.10ali_sca.wir 150 2 1 151 75 24732.33 0 533598.9 295000.57 0.13 0.03 No violations found at max temp. of 75.00

0.10ali_sca.wir 150 3 1 151 75 24676.53 0 533543.15 295003.03 0.27 -1 No violations found at max temp. of 75.00













0.10ali_sca.wir 155 1 1 0156/0157 75 25356.37 -2.11 534222.33 294973.08 -0.31 -0.78 No violations found at max temp. of 75.00

0.10ali_sca.wir 155 2 1 0156/0157 75 25308.91 0 534174.83 294973.28 -0.97 0 No violations found at max temp. of 75.00

0.10ali_sca.wir 155 3 1 0156/0157 75 25358.47 0.91 534224.28 294969.96 -0.26 -0.4 No violations found at max temp. of 75.00

0.10ali_sca.wir 0156/0157 1 1 158 75 25403.28 -1.98 534269.18 294970.73 -0.5 -0.66 No violations found at max temp. of 75.00

0.10ali_sca.wir 0156/0157 2 1 158 75 25427.54 0 534293.32 294967.63 -0.68 0 No violations found at max temp. of 75.00

0.10ali_sca.wir 0156/0157 3 1 158 75 25390.19 0.59 534255.99 294968.76 -0.19 -0.76 No violations found at max temp. of 75.00



















0.10ali_sca.wir 163 2 1 164 75 26068.2 0 534888.94 295139 0.17 -0.02 No violations found at max temp. of 75.00











0.10ali_sca.wir 167 1 1 0168A/0168B 75 26525.1 -0.64 535293.57 295351.21 -0.62 0.58 No violations found at max temp. of 75.00

0.10ali_sca.wir 167 2 1 0168A/0168B 75 26519.12 0 535288.57 295347.87 -0.57 0.03 No violations found at max temp. of 75.00


0.10ali_sca.wir 0168A/0168B 11 1 169 75 26627.96 -1.87 535388.95 295355.45 -1.07 -0.72 No violations found at max temp. of 75.00


0.10ali_sca.wir 0168A/0168B 13 1 169 75 26624.35 1.67 535384.38 295353.29 -1.75 0.57 No violations found at max temp. of 75.00






0.10ali_sca.wir 170 1 1 171 75 26856.57 -1.1 535605 295280.79 0 -0.04 No violations found at max temp. of 75.00






0.10ali_sca.wir 172 1 1 173 75 27094.51 -1.96 535830.05 295203.47 0 -0.93 No violations found at max temp. of 75.00








0.10ali_sca.wir 174 3 1 175 75 27322 0.25 536044.32 295127.07 -0.5 -0.84 No violations found at max temp. of 75.00




















0.10ali_sca.wir 180 3 1 181 75 28084.95 0 536797.8 295053.25 -1.17 -1 No violations found at max temp. of 75.00
















0.10ali_sca.wir 2 1 1 0003A/0003B 75 28822.54 -1.67 525919.82 295499.15 0.58 -0.62 No violations found at max temp. of 75.00

0.10ali_sca.wir 2 2 1 0003A/0003B 75 28805.28 0 525919.71 295481.8 0.08 -0.01 No violations found at max temp. of 75.00

0.10ali_sca.wir 2 3 1 0003A/0003B 75 28804.71 0.92 525920.56 295481.14 -0.02 -0.15 No violations found at max temp. of 75.00


0.10ali_sca.wir 0003A/0003B 2 1 4 75 28883.4 0 525930.41 295559.13 0.03 0.01 No violations found at max temp. of 75.00

0.10ali_sca.wir 0003A/0003B 3 1 4 75 28895.63 1.34 525933.94 295570.91 0.1 0.29 No violations found at max temp. of 75.00





0.10ali_sca.wir 4 13 1 0005A/0005B 75 28975.43 2 525958.2 295646.29 0.64 0.91 No violations found at max temp. of 75.00



0.10ali_sca.wir 0005A/0005B 3 1 6 75 29052.4 0.2 525988.22 295716.96 0.97 -0.89 No violations found at max temp. of 75.00






















0.10ali_sca.wir 13 1 1 14 75 29718 -1.95 526333.76 296261.1 -0.8 -0.84 No violations found at max temp. of 75.00








0.10ali_sca.wir 15 11 1 0016A/0016B 75 29962.89 0 526546.44 296372.44 0.07 0.95 No violations found at max temp. of 75.00



0.10ali_sca.wir 0016A/0016B 11 1 Whittlesey

Primary (Left) 0 29984.72 -0.11 526556.56 296391.78 0.17 1 TIN elevation


Primary (Left) 0 29984.76 0 526556.68 296391.76 0.17 -0.03 Point TINPT Interpolated Ground Points


Primary (Left) 0 29984.74 2.16 526558.58 296390.76 0.18 1 TIN elevation


0.10ali_sca.wir 0001A/0001B 12 1 2 75 30138.15 0 526702.76 295237.51 -0.69 0 No violations found at max temp. of 75.00

0.10ali_sca.wir 0001A/0001B 13 1 2 75 30120.92 1.66 526706.43 295220.59 -0.65 0.47 No violations found at max temp. of 75.00



























0.10ali_sca.wir 10 1 1 0011/0011R 75 31157.29 -2.24 526574.95 296248.61 1.06 -0.96 No violations found at max temp. of 75.00

0.10ali_sca.wir 10 2 1 0011/0011R 75 31157.92 -0.94 526576.17 296249.39 1.01 -0.94 No violations found at max temp. of 75.00

0.10ali_sca.wir 10 3 1 0011/0011R 75 31162.11 0.45 526577.07 296253.71 1.04 -0.83 No violations found at max temp. of 75.00

0.10ali_sca.wir 0011/0011R 11 1 #12 75 31236.72 -0.36 526567.02 296327.65 -0.59 1 No violations found at max temp. of 75.00

0.10ali_sca.wir 0011/0011R 12 1 #12 75 31232.06 0 526567.98 296323.07 -0.71 0.02 No violations found at max temp. of 75.00

0.10ali_sca.wir 0011/0011R 13 1 #12 75 31201.71 0.99 526572.88 296293.1 -0.56 -0.38 No violations found at max temp. of 75.00

0.10ali_sca.wir #12 11 1 Whittlesey

Primary (Right) 0 31295.75 -0.17 526570.53 296383.8 0.25 1 TIN elevation


Primary (Right) 0 31293.17 0 526569.26 296381.56 0.22 -0.01 Point TINPT Interpolated Ground Points


Primary (Right) 0 31296.32 2.24 526572.86 296382.95 0.32 1 TIN elevation





Span Feature

Type Station

(m)

Offset "-" Left,

"+" Right (m.)

3D Clearance

(m.)

Required Clearance

(m.)

Vertical Clearance

Margin (m)

0003A/0003B to 0004 Misc Lines 59.59 -3.73 1.9 2 -0.1

0003A/0003B to 0004 Misc Lines 64.41 -3.46 1.79 2 -0.21

0003A/0003B to 0004 Misc Lines 70.93 -3.23 1.82 2 -0.18

0003A/0003B to 0004 Misc Lines 81.24 -2.89 2 2 0

0004 to 0005 Misc Lines 138.85 -1.63 1.9 2 -0.1

0004 to 0005 Misc Lines 153.6 -1.73 1.51 2 -0.49

0004 to 0005 Misc Lines 163.07 -1.71 1.33 2 -0.67

0004 to 0005 Misc Lines 173.25 -1.68 1.25 2 -0.75

0004 to 0005 Misc Lines 178.64 -1.65 1.23 2 -0.77

0004 to 0005 Misc Lines 185.34 -1.74 1.41 2 -0.59

0004 to 0005 Misc Lines 195.18 -1.7 1.6 2 -0.4

0004 to 0005 Misc Lines 206.52 -1.66 1.99 2 -0.01

0005 to 0006 Misc Lines 254.56 -1.68 1.96 2 -0.04

0005 to 0006 Misc Lines 276.13 -1.77 1.52 2 -0.48

0005 to 0006 Misc Lines 284.69 -1.66 1.39 2 -0.61

0005 to 0006 Misc Lines 290.31 -1.71 1.49 2 -0.51

0005 to 0006 Misc Lines 302.11 -1.67 1.66 2 -0.34

0006 to 0007 Misc Lines 361.3 -1.68 1.87 2 -0.13

0006 to 0007 Misc Lines 375.51 -1.56 1.28 2 -0.72

0006 to 0007 Misc Lines 378.78 -1.51 1.16 2 -0.84

0006 to 0007 Misc Lines 405.07 -1.38 1.01 2 -0.99

0006 to 0007 Misc Lines 406.33 -1.41 1.06 2 -0.94



0006 to 0007 Misc Lines 418.21 -1.33 1.28 2 -0.72

0006 to 0007 Misc Lines 426.71 -1.31 1.6 2 -0.4

0007 to 0008 Misc Lines 456.16 -1.17 1.89 2 -0.11

0007 to 0008 Misc Lines 460.42 -1.22 1.72 2 -0.28

0007 to 0008 Misc Lines 495.67 -1.34 0.79 2 -1.21

0007 to 0008 Misc Lines 500.24 -1.34 0.75 2 -1.25

0007 to 0008 Misc Lines 508.65 -1.36 0.77 2 -1.23

0007 to 0008 Misc Lines 534.85 -1.72 1.8 2 -0.2

0011 to 0012 Misc Lines 908.91 -1.62 1.67 2 -0.33

0013 to 0014 Misc Lines 1127.97 -1.53 1.79 2 -0.21

0018 to 0019 Misc Lines 1645.5 -1.08 1.52 2 -0.48

0018 to 0019 Misc Lines 1652.11 -1 1.76 2 -0.24

0067 to 0068/0068B Vegetation 6811.31 -3.49 2.51 3 -0.49

0080A/0080B to 0081A/0081B Misc Lines 8081.38 -1.51 0.77 2 -1.23

0089 to 0090 Misc Lines 8922.17 -2.08 1.88 2 -0.12

0104 to 0105 Misc Lines 10486.18 1.61 1.9 2 -0.1

0105 to 0106 Misc Lines 10488.17 1.89 1.88 2 -0.12

0116 to 0117 Misc Lines 20979.83 -1.75 1.98 2 -0.02

0127 to 0128 Misc Lines 22274.66 -0.48 1.95 2 -0.05

0128 to 0129 Misc Lines 22274.66 -1.38 1.95 2 -0.05

0141 to 0142 Vegetation 14061.09 2.49 2.23 3 -0.77

0156A/0156B to Chatteris Substation 15301.74 -1.14 0.85 2 -1.15

#66 to 0067 Misc Lines 15402.3 0.93 1.87 2 -0.13

0160 to 0161 Misc Lines 25672.73 0.85 1.74 2 -0.26

0016A/0016B to Whittlesey Primary (Left) Substation 29985.33 -0.01 0.19 2 -1.81

#12 to Whittlesey Primary (Right) Substation 31296.96 -1.16 0.45 2 -1.55

Blow-out clearance infringments picking up on the parallel circuit between structures 0003A/0003B and 0019.



Appendix 6 Recommended DLR relay settings

DLR_1a DLR_1b DLR_2 DLR_4Dyn Line Rating CIGRE Std 207 CIGRE Std 207 CIGRE Std 207 CIGRE Std 207 Conductor Type Jaguar Wolf Dog JaguarNonFerrous layer 2 2 2 2Solar Absorpt 5.00E‐01 5.00E‐01 5.00E‐01 5.00E‐01Line Emissivity 5.00E‐01 5.00E‐01 5.00E‐01 5.00E‐01Line Elevation 9.000 m 10.00 m 9.000 m 10.00 mLine Azimuth Min 0 0 0 0Line Azimuth Max 0 0 0 0T Conductor Max 50.00 Cel 50.00 Cel 50.00 Cel 50.00 CelAmpacity Min 338.0 A 338.0 A 253.0 A 408.0 AAmpacity Max 1500 A 1500 A 1500 A 1500 ADrop‐off Ratio 98.00% 98.00% 98.00% 98.00%Line Direction 0 0 0 0Ambient Temp CLI1 CLI2 CLI3 CLI0Default AmbientT 20.00 Cel 20.00 Cel 20.00 Cel 20.00 CelAmbient T Corr 0 Cel 0 Cel 0 Cel 0 CelAmbient T Min ‐10.00 Cel ‐10.00 Cel ‐10.00 Cel ‐10.00 CelAmbient T Max 40.00 Cel 40.00 Cel 40.00 Cel 40.00 CelAmbient T AvgSet Disabled Disabled Disabled DisabledAmbient T AvgDly 60.00 s 60.00 s 60.00 s 60.00 sAmb T Input Type 4‐20mA 4‐20mA 4‐20mA 4‐20mAAmb T I/P Min ‐10.00 Cel ‐10.00 Cel ‐10.00 Cel ‐10.00 CelAmb T I/P Max 40.00 Cel 40.00 Cel 40.00 Cel 40.00 CelAmb T I< Alarm Enabled Enabled Enabled Enabled Amb T I< Alm Set 3.500 mA 3.500 mA 3.500 mA 3.500 mAWind Velocity CLI1 CLI1 CLI1 CLI1 Default Wind Vel 500.0 mm/s 500.0 mm/s 500.0 mm/s 500.0 mm/sWind Vel Corr 100.00% 100.00% 100.00% 100.00%Wind Vel Min 0 m/s 0 m/s 0 m/s 0 m/sWind Vel Max 60.00 m/s 60.00 m/s 60.00 m/s 60.00 m/sWind Vel AvgSet Enabled Enabled Enabled Enabled Wind Vel AvgDly 600.0 s 600.0 s 600.0 s 600.0 sWV Input Type 4‐20mA 4‐20mA 4‐20mA 4‐20mA WV I/P Minimum 0 m/s 0 m/s 0 m/s 0 m/sWV I/P Maximum 60.00 m/s 60.00 m/s 60.00 m/s 60.00 m/sWV I< Alarm Enabled Enabled Enabled Enabled WV I< Alarm Set 3.500 mA 3.500 mA 3.500 mA 3.500 mAWind Direction Disabled Disabled Disabled Disabled Default Wind Dir 20 20 20 20Solar Radiation Disabled Disabled Disabled Disabled Default Solar R 890.0 W 890.0 W 890.0 W 890.0 W

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