insight - stamford · foreword welcome to the 4th edition of generating insight. like many...

Edition 4

Grid Codes – Compliance and Certification

Pages 7-9

Edition 4:

Page 3-4The Applicationof Our Expertise

Page 2UK Speaker of The House of Commons Visits Romania Facility

Page 5-6Hybrid Power

insightgenerating

Foreword

Welcome to the 4th edition of Generating Insight. Like many companies, we appreciate the value of sharing our knowledge. It aligns with one of Cummins’ mission statements: “Partnering with our customers to make sure they succeed.”

In this issue we have featured "Grid Codes - Compliance and Certification". With new legislation being adopted by more countries to help ensure continuous and stable power supplies as well as uniformity of transmission and distribution practices, Transmission System Operators and Distribution System Operators are applying new generating set performance expectations. Cummins Generator Technologies evaluates grid code design strategies and the certification process required for generating sets manufacturers.

We also highlight our Applications Engineering Team in the feature "The Application of Our Expertise", who together, form an easily-accessible repository of product knowledge, operating experience and electrical engineering capability that are here to to ensure our products match your needs. However, for the Application Team to meet that challenge, many things need to be in place to make sure customer expectations are met. For a great example, see the "Customer In Focus" feature where we provided 16 AvK generators operating at temperatures reaching -20°C for an onshore Oil and Gas stationary rig in Siberia.

I hope this edition of our Generating Insight illustrates how Cummins Generator Technologies is focused in ways to help you grow; by expanding product lines, delivery quality and helping you to achieve successful and profitable projects, even in these challenging markets.

We thank you for your continued business in 2013, and wish you a productive 2014.

Robin Jackson Chief Engineer Global Service Engineering Cummins Generator Technologies

1 generating insight | edition 4

Generating Insight is the Cummins Generator Technologies magazine focusing on topics relevant to our products, our customers and our industry.

Copyright 2014 . Cummins Generator Technologies Ltd. All Rights Reserved.STAMFORD, AvK and MARKON are registered trade marks of Cummins Generator Technologies Ltd.

Publication design by Media Mill Ltd.+44 (0) 1457 877 164

Editor: Anita FountainEmail: [email protected]

Editorial

The Right Honorable John Bercow, Speaker of the House of Commons and Member of UK Parliament visited Cummins Generator Technologies Romania earlier this year to celebrate continued British investment and manufacturing excellence in Romania.

Cummins identified Craiova as the location to expand its larger generator production facilities during 2014 with an €11.5M investment in capacity as well as advanced manufacturing technologies and testing facilities.

John Bercow MP was joined on this visit by Martin Harris, British Ambassador in Romania, Andreea Radu, Deputy Head of the UKTI Bucharest, Valeriu Zgonea, President of Deputies Chamber in Romania, Ion Prioteasa, President of Dolj County Council, Deca Marius Costinel, Prefect of Dolj County and Lia Olguta Vasilescu, Mayor of Craiova.

Ron Cebula, General Manager of Cummins Generator Technologies Romania, commented “We are delighted to announce our growth plans for Craiova. I believe this investment, coupled with the on-going personal development of our dedicated employees will bring the best of British and Romanian industries together.” Cebula added “It is a privilege for Cummins Generator Technologies to host this event here in Craiova.”

Cummins Generator Technologies established itself in Craiova in 1999 and has since become an integral element of Cummins’ global engineering and manufacturing capability. Craiova was selected as a strategic growth location to manufacture 600kVA to 7,000kVA STAMFORD and AvK generators and components, now producing in excess of 800 generators per annum, employing over 700 employees as a result. Cummins identified Craiova for its design and manufacturing operations due to its central European location, excellent links with local universities and significantly the collaboration between the UK embassy in Bucharest and the Romanian government.

In 2008 and each year since, Cummins Generator Technologies has been awarded recognition as a Top Three company by the Chamber of Commerce and Industry from Dolj county.

UK Speaker of The House of Commons Visits Romania Facility

“We are delighted to announce our growth plans for Craiova. I believe this investment,

coupled with the on-going personal development of our dedicated employees will bring the best of British and Romanian

industries together.”

2generating insight | edition 4

The Applicationof Our ExpertiseCummins Generator Technologies' Applications Engineering team is determined to make sure that the generator you buy is right for you.

The Applications team is an easy-accessible repository of product knowledge, operating experience and electrical engineering capability that can help ensure our products match your needs.

However, for the Applications team to meet that challenge, many things need to be in place in order to make sure customer expectations are met each time, every time. In short, making sure each generator matches the customer’s mission.

To that end, Cummins Generator Technologies has recently taken steps to increase the capabilities and expertise within its Applications team in a number of areas. So what are those steps?

Within the engineering team organisation, ‘customer-focus’ is the number one priority and primary function. Thus, the Customer Engineering team now incorporates Applications Engineering and Service Engineering personnel―both with key distinct tasks.

The Applications Engineering team’s role is to fully understand current-product applications, managing and providing product performance data through a number of delivery streams, interacting with the global customer base in order to ensure that the products Cummins Generator Technologies sell meet the performance criteria and specifications demanded by the customer. This is achieved by an on-going dialogue with the customer before, during and (equally-important) after the sale of a generator.

The Service Engineering team, meanwhile, is responsible for driving, and resolving, customer product investigations through the Rapid Problem Solving (RPS) processes, as well as product validation, interacting with not only with Cummins’ customers but also with end-users.

Creating the Customer Engineering team has already achieved a great deal―not least through effectively joining-up the two ends of the customer-facing engineering activity, bringing together applications excellence with product issue resolution, translating both sets of knowledge into improving our product application reliability.

That operational ‘know-how’ is fed-back to the product design and development teams, thereby ensuring a continuous product development activity that’s driven by the needs and requirements of customer applications and associated challenges―which products must match, in order to stay competitive and gain market advantage.

Cummins Generator Technologies’ Global Applications Team is led by Simon Walton. Simon has been with Cummins for more than 18 years gaining considerable knowledge and experience within the world of rotating machines. He has been tasked with developing the company’s customer support capabilities, particularly through the recruitment of skilled personnel to support business expansion in regions like North America and recently restructuring operations in China.

Cummins Generator Technologies’ customers will continue to benefit from its Applications teams’ unrivalled knowledge of their products and operations in a wide range of industry segments―traditionally provided by our Application Guidance Notes.

Simon Walton also continues to champion Applications Engineering Functional Excellence - our process for driving improvement - through the development of harmonised applications performance data and the creation of applications tools. Moreover, the use of Six Sigma’quality-improvement tools and processes has already seen a number of Customer Focused Six Sigma (CFSS) projects delivering automated performance data creation tools such as:

■ P-Q diagrams (machine-operating capability charts)

■ Three-Phase Decrement curves

■ Transient Voltage Dip and Recovery curves

■ Magnetisation curves

■ Overload curves

These tools, together with many others, provide a harmonised and above-all-else consistent approach to performance-matching data, and speed-up the creation and delivery of this critical product performance confirmation to our customers.

Cummins Generator Technologies enhances its Customer Engineering support


Equally important, to ensure these latest improvements reach and benefit customers, Cummins Generator Technologies’ Applications team has become even more closely aligned with the commercial organisation as members of key accounts teams. Together, they deliver focused applications guidance and product matching capability, ensuring a successful product delivery process to all customers. As a result of those organisational enhancements, customers will not only enjoy a quicker delivery of information and advice throughout the generator delivery process, but also enjoy even greater ‘mission- matching’ of products to their requirements―which can only enhance the value that Cummins Generator Technologies already brings to its customers, from initial product application advice through to on-going operating support.

Last but not least, Cummins Generator Technologies is currently running a number of projects where the Applications team is working in support of further product developments. In particular, driving product development forward in order to ensure compatibility for the new Grid Code operating requirements, which are currently developing in a large percentage of the global power systems.

Naturally, the process of improvement never ends so the above achievements are certainly not the end of the story. There is further work to do to continually improve and provide a world-class applications experience for our

customers. But for now, with the on-going strategy of constantly enhancing the structure and capabilities of the Applications team, Cummins Generator Technologies will continue to deliver products and services in support of their customers whatever the product, wherever the application.

If you would like to contact our Application team, please email: [email protected]


HybridPOWER

Commercial vehicle operators’ concerns about greener trucks and buses could be allayed with the development of integrated hybrid subsystem components.

Putting a hybrid drive in a commercial vehicle is hardly ‘breaking news’…Europe’s truck and bus makers have been developing diesel/electric chassis for years, so today they’re no longer CV show ‘talking points’, but fully-available production-line models that have already been tried and tested by some of the biggest logistics, municipal and passenger transport fleets in Europe.

On paper, hybrids come with impressive credentials, especially in terms of cutting CO² and saving fuel, with the OEM’s regularly quoting reductions of up to 25% for both. By being able to use supplementary electrical power during a hybrid vehicle’s launch-phase truck and bus manufacturers have the potential to remove one of the most fuel-thirsty stages in a vehicle’s every-day operation.

Likewise, given the stop-start nature of inner-city delivery and refuse-collection trucks, as well as city-bus operations, using a regenerative braking system on a hybrid vehicle means there is plenty of opportunity to regularly top up its battery pack, further extending the use of the hybrid drive.

Burning less fuel naturally means fewer harmful emissions too, especially in environmentally sensitive inner-city areas, where air quality is an increasingly major issue. Hybrid technology also provides large transport organisations with the perfect tool to demonstrate a clear ‘green’ strategy.

Yet despite all those obvious ‘pros’, many fleet buyers remain wary of hybrid trucks and buses thanks to ‘cons’, that include the additional weight of battery packs, vehicle servicing and reliability issues, technology durability uncertainties, and their additional costs.

Cummins Generator Technologies’ CorePlus™ motor generator, together with its own controls software in the power electronics, will tackle those concerns head-on, both for OEMs and potential hybrid truck and bus buyers. Its compact design (168mm long) means the generator can be easily fitted between the engine and gearbox, with minimum disruption to existing drivetrain layouts.

Suitable for either parallel, or series-hybrid drivetrains, its hollow rotor design fits any driveshaft configuration. And as its rotor casting only has to handle the torque produced by the electric motor only (rather than the diesel engine) the overall weight is just 103kg.


By adding its own CorePlus™ power electronics inverter and controls software to the motor generator, Cummins Generator Technologies has been able to optimise performance and efficiency. The operating efficiency of the CorePlus™ generator, which has a maximum power of 90kW and a peak torque of 660Nm, is quoted as “greater than 95%.” The latter is a particularly noteworthy point explains Robert Lee, Executive Director, Power Generation Strategy for Cummins Generator Technologies: “Efficiency is the single-most important factor affecting a hybrid system’s overall economic case, primarily through vehicle fuel savings.

“The higher the efficiency of the motor generator, the more energy is captured so the hybrid drive can run for longer, thereby improving the vehicles’ fuel savings and reducing emissions even further.”

By fully integrating the hybrid system with the rest of its hardware and software, Cummins has also ensured

new levels of safety as the motor generator and power electronics have full protection.

To help OEMs develop future hybrid systems, Cummins can also use custom simulation tools. For a given hybrid vehicle duty cycle these can determine the best power, torque and performance requirements to deliver the best fuel and emission savings. Furthermore, highly efficient low cost solutions from the company’s manufacturing site in China offer shorter payback on investment and rely less on government subsidies to promote adoption.

Lee concludes thus: “Working together, the CorePlus hybrid subsystem components offer a tightly integrated solution that improves performance, efficiency and system protection. We have the people and systems in place to work with OEMs to deliver the latest in engine electrification, anywhere in the world.”

The operating efficiency of the CorePlus generator, which has a maximum power of 90kW and a

peak torque of 660Nm, is quoted as “greater than 95%."

Battery Pack

Cummins Power Electronics

Cummins CorePlus™ Motor Generator

A typical Cummins CorePlus™ Motor Generator


Grid Codes – Certification and ComplianceAn evaluation of generator set design implications and the certification process


A Distributed Landscape By 2030, world electricity demand will have doubled since the turn of the century, if projections by the International Atomic Energy Agency are accurate. That power increase would have historically come from traditional sources of power generation such as fossil fuels and nuclear fission. But in today’s distributed power generation landscape a great deal of that additional demand will come from renewables and distributed power generation.

Distributed generation is commonly defined as a collection of small scale energy sources dispersed over a grid. This type of power generation relies on prime movers with an internal combustion engine using diesel or gas, or hydro turbines, solar plants with inverters, wind farms with and without inverters.

Distributed power plants benefit from a relatively fast installation cycle, enabling quick delivery of grid support. They can also achieve green and environmentally friendly solutions in the case of solar, wind and hydro power. However the self-contained and self-protecting nature of distributed power plants can make the grid less stable. Traditionally, distributed power generating plants were allowed to disconnect from the grid during short disturbances. However, with such a large proportion of the grid being supplied by distributed sources, self-protection can lead to a mass drop-off of these installations and so

in some extreme cases a collapse of the entire grid. Grid codes are being introduced in part, to protect the system from potential mass drop-off events.

The impact of this necessary legislation is that in future, generating sets will be expected to stay connected regardless of any short term power disturbance. This means the generator must be capable of ‘riding through’ severe transient events and still come out smiling on the other side.

To ensure this continuity and security of power supply, electricity Transmission System Operators (TSO) and Distribution System Operators (DSO) across the world are beginning to introduce grid code requirements that define performance expectations on power plants. These codes fall under two distinct categories Steady State operation and Transient operation.

Steady State OperationUnder steady-state (static) conditions, grid codes require that the generator’s specified kVA rating be supplied over a wide range of voltage, power factor and frequency conditions. The specifics of each country’s or region’s grid codes vary slightly, but from a broad perspective, the key aspects of the Steady State conditions are:

■ Terminal Voltage variation of ±10%

■ Lagging or Leading Power Factor

■ Supply Frequency variation of ±5%

The voltage and frequency requirements are not particularly dissimilar to IEC60034 Zone B operation, however, the generator must be designed to achieve those typical performance requirements. The risks associated with not designing for these conditions are excessive operating temperatures due to rotor over excitation and increased exposure to potential pole slip events due to weakened electromagnetic coupling between the stator and rotor.

Transient OperationThe Transient, or dynamic operating condition, requires the generating set to stay connected to the grid during fault or disturbance events. This requirement is commonly called a Fault Ride Through (FRT) or in some cases a Low Voltage Ride Through (LVRT) event. These FRTs can expose the generator to severe thermal, mechanical and electrical stresses. Designing generators and their associated components to comply with grid codes is therefore very challenging.


Under an FRT, the voltage at the Point of Common Coupling (PCC) drops to a very low value and the active load on the generating set drops proportionally. There is a chain of events now set in place. Firstly, the kinetic energy in the shaft tries to accelerate the unloaded generator toward a pole slip event. A generator designed with the correct levels of system inertia and synchronous reactance will limit the impact of this rotational step change and a pole slip will be avoided. However this stage of the FRT event will cause high levels of thermal and mechanical stress, as the acceleration of the rotor stresses the generator mechanically whilst the low voltage at the generator terminal induces high short circuit currents in the stator windings.

The second phase of an FRT event occurs when the TSO or DSO clears the grid fault and the generating set is required to align itself almost instantly to grid frequency and voltage. It should be noted that the generating set has potentially just been through an acceleration event, so there is a high possibility that the generator and the grid are now electrically out of phase with one another. As there is no longer the luxury of a controlled resynchronisation sequence, the generating set must be designed to be robust enough to deal with a ‘crash sync’ that could be as severe as 180oelec out of phase. A design challenge indeed.

Global Grid CodesGermany is leading the way for grid codes implementation with Italy and France not that far behind. Each country has their own specific grid regulations, however, there is a move to harmonise all European grid codes into one Pan European grid code. This initiative is being led by the European Network of Transmission System Operators for electricity, more usually referred to as ENTSO-e.

ENTSO-e is already in the process of developing these mandatory European wide regulations and have a planned implementation date of 2017. Once this standard has been finalised by the ENTSO-e consortium, we will publish an article to expand on the implications of this new common European Grid Code.

The demand for grid regulation is not just European specific. In the USA, IEEE1547 is being modified to incorporate steady state voltage and frequency variation and to allow for transient FRT capability. Australia is implementing their own mandatory grid code regulations for power plants above 30MW, whilst Japan is promoting the implementation of a smart grid infrastructure rather than introduce transient condition grid codes.

Design ImplicationsIn order to satisfy new grid regulations, generators need to be designed to be statically and dynamically stable.

A key parameter affecting stability is operating load angle – the larger the load angle, the more likely a pole slip will occur. The level of synchronous reactance (Xd, Xq) of the generator, can directly impact the operating load angle and through careful design they can be tailored to minimise load angle for a given generator rating.

The inertia of the rotating mass of crankshaft, coupling arrangement and rotor, has a fundamental influence on the dynamic stability of the generating set. In simple terms, the higher the inertia constant (H) the harder it is for the FRT event to alter the synchronous speed of the generating set. This is particularly important when the fault is cleared and the generating set is resynchronised with the grid.

Visit our new microsite for more Grid Code information and resources:www.gridcodegenerators.com

Grid compatible generators should be inherently robust in order to withstand the physical impact of FTR events. This can be through enhanced stator and rotor bracing or simply by derating. In order to soften the impact of high rotor transients on the excitation circuit, driven by FRT and pole slip events, snubber resistors may also be fitted.

To provide ongoing design improvement data, Cummins Generator Technologies has developed GenSentry™, a custom data logging system which identifies and records grid disturbances. GenSentry™ seamlessly integrates into the terminal box of STAMFORD or AvK generators to provides customers with valuable real-time and historical data about the load and transient environment that their generating set isoperating in.

Certification Having grid code compatible generators fitted to grid code compliant generating sets requires an intensive certification process. The certification process requires that a practical FRT test be conducted using specially constructed reactive and resistive networks capable of simulating grid events. Further certification within that product range can then be achieved through running a computer simulated model using parameters gained from the practical test. One practical product test will cover a range of power outputs from 50% to 200% of the tested product. For example, the practical testing of a 1,500kVA generating set, will certify the same product over a 750 to 3,000kVA range.

The certification model derives the majority of its performance parameters from the generator manufacturer. For the engine, only kW rating and inertia constant (H) are required. Cummins Generator Technologies has already developed the certification models required for our generator ranges.

The diagram above shows the steps and processes required to certify a generating set for grid code compliance. It should be noted that he certification process is for a complete generator set and not the generator alone.

To support our customers through the certification process we have developed a range of products and certification models from 150kVA to 18,000kVA, which not only meets the requirements of grid code operation but also ensures the durability and performance of the alternator is unaffected.

The solution Cummins Generator Technologies offers includes not only the product, but also the expertise and experience to assist our customers through certification, wherever they are in the world.

For further information please visit: www.gridcodegenerators.com or email: [email protected]

Share data with certification body

Certification body to validate model

Write measurement report

Gain certification

Establish test plan Develop simulation model of product

Tuning ofsimulation model

Responsibility of the Generating Set Manufacturer

Joint development Generating Set Manufacturer and Cummins Generator Technologies

Data provided by Cummins Generator Technologies

Actual LVRT and power quality tests with credited test

house

CumminsGenerator

Technologies to support and

supply generator data

Define Grid Code Requirements

Apply Requirements

Share data with certification body

Certification body to validate model

Write measurement report

Gain certification

Establish test plan Develop simulation model of product

Tuning ofsimulation model

Responsibility of the Generating Set Manufacturer

Joint development Generating Set Manufacturer and Cummins Generator Technologies

Data provided by Cummins Generator Technologies

Actual LVRT and power quality tests with credited test

house

CumminsGenerator

Technologies to support and

supply generator data

Define Grid Code Requirements

Apply Requirements


Visit our new microsite at www.gridcodegenerators.com

Cummins Generator Technologies has taken the lead to support legislative requirements across the world. Our power generation solutions of tomorrow are looking beyond Europe and are being designed to meet international Grid Code compliance requirements.

We continue to use our technology leadership position and resources to develop the power industry’s most comprehensive range of products, through the internationally renowned STAMFORD® and AvK® brands.

www.gridcodegenerators.com

International Grid Codelegislation is changing:We’re ready. Are you?



Customer Photography Competitionfrom Cummins Generator Technologies

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United Kingdom

Competition closing

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Partnership with Institution of Engineering Technology provides student opportunities


E3 Academy ElectricalEngineering Internships

This year's E3 Academy Students

With the support of the Institution of Engineering Technology, the Electrical Energy Engineering or E3 Academy was founded four years ago by Nottingham and Newcastle Universities and five industrial partners, one of whom is Cummins Generator Technologies.

The guiding principle behind the Academy is to encourage school leavers who are considering university, to choose electrical engineering as a degree course and subsequently electrical engineering as a career. Industrial partners support the students in two ways, practically through an annual bursary and academically by providing ongoing coaching during summer internships.

The Academy also organises and runs a summer school each year, where all of the students get to meet and network with one another. The three day summer school is staffed by representatives of the member companies and universities and it provides the students with a wide array of activities; from challenging and competitive team based design projects, to industrial seminars on topics as varied as finance or lean manufacturing. There are also personal development, team building and social activities.

As with the other industrial partners, Cummins Generator Technologies involvement with the Academy is not wholly altruistic. As well as encouraging and training these students, we are also looking at graduate recruitment possibilities following the internships. And to be fair the students also have an expectation of Cummins Generator Technoloiges becoming their potential employer.

Industry Experts Join Cummins

Cummins has recently announced its plans to expand the Cummins Innovation Centre at the University of Nottingham to include world renowned experts Professor Fred Eastham, Professor Ed Spooner, Professor Tim Miller and Professor Steve Williamson in the design of electrical machines. These experts are distinguished appointees to the centre’s newly formed advisory council, which also includes Dr. Neil Brown, Director of Advanced Machines at Cummins, and Dr. Chris Gerada, Innovation Centre Director. The purpose of the council is to inspire and guide future advances in electrical machines and drives. Council members will review projects, deliver lectures and provide both mentorship and advice to students and academic staff at the University.

Dr. Brown, whose role at Cummins is focused on development of next generation electrical machines, said “We see the establishment of the advisory council as a significant milestone for the Cummins Innovation Centre. I am personally honored to serve alongside such a distinguished group of individuals, all of whom have excelled at the highest level in their field. The University of Nottingham and The Innovation Centre already hold a leading position on the global stage for the development of tomorrow’s electrical machines. The establishment of such an esteemed advisory council further strengthens that position.”

Dr. Gerada, who manages the day to day operation of the Cummins Innovation Centre, said: “This is an exciting development for the electrical machines activities at the University and will reinforce our world leading research in this area. I am looking forward to working with this eminent team of experts who possess a wealth of academic and industrial experience. The Centre has seen rapid growth in its first year and the addition of this advisory council will set the foundation and provide direction for future expansion and development.”

The Cummins Innovation Centre research facility was established at the University of Nottingham in March 2012 with £2m in initial funding from Nottingham University, Cummins Generator Technologies and The Royal Academy of Engineering. A world-renowned centre of excellence, the Cummins Innovation Centre draws upon the skills and knowledge of world leading experts to enable advances in electrical machines and drives technology leading to product innovation benefiting customers of Cummins.

To read more about the Cummins Innovation Centre and the Cummins Advisory Council members visit…..

http://www.nottingham.ac.uk/engineering/research/electricalsystemsandoptics/cummins-innovation-centre/advisory-board.aspx

Industry experts join Cummmins Innovation Centre

Electrical machines specialists appointed to the Cummins Innovation Centre Advisory Council


Customer in Focus Generators Operate at -20°C in Russia

Sixteen AvK DSG 86 generators have been specially produced to meet the challenging requirements of the Russian market to operate at a stationary rig where temperatures reach -20°C. Not only the rig, but the AvK generators as well as 16 cylinder Cummins engines were developed down to the finest detail, able to endure the harsh Siberian climate.

This stationary rig, which was produced by Bentec, weighs around 320 tons and can drill to a depth of up to 5,000 metres. However, being located in Siberia and its arctic – like climate, makes it really challenging for all parties involved.

The DSG 86 AvK generators are equipped with 1,600 kVA of power and rated at 690 V, 50 Hz, 4 poles, IP23, have a speed of 1500 rpm and are driven by 16 cylinder KTA50 Cummins engines. This robust land based drilling power module provides power to the stationary rig, including top drive, draw works and mud pump.

As the Russian market also demands special documents, the drilling power modules were equipped to meet all required local certificates, including API and DIN EN. This provides a clear evidence of compliance. The harsh operating conditions mean that a standard generating set would not be suitable for this application and instead a drilling power module has been specified. The drilling power module utilises a form wound LV coil system that incorporates taped coils ensuring that the winding is both mechanically and electrically robust. This improves durability when faced with the arduous demands of a drill rig drive and electrical system. Durability and service life are further enhanced by the double-bearing arrangement. Power factor is typically 0.7 – 0.8 for drilling power modules, instead of 0.8 – 0.9 for standard generating sets. The integrated dust filters ensure the drilling power modules perform exceptionally in the challenging environmental conditions. Bentec is a Germany based

manufacturer of high quality drilling rig systems and drilling rig components. Their current portfolio exists of various types of rigs and specific components. Their key rigs are: Euro rigs, desert rigs, arctic rigs and special rigs. Each rig has its own unique requirement, mainly based on local infrastructure and climate conditions.

Bentec has embraced the Oil & Gas industry’s drive into more challenging territory with the creation of high quality, cost effective and durable drilling and oilfield systems targeted at the harshest and most hostile environments. As a single source supplier of the drilling power modules and alternators, Cummins offers the customer a customised and adapted solution to meet the challenging market requirements.

The AvK generators were all successfully tested before installation and are now driven by the Cummins power modules at the stationary rig in Russian Siberia.

Bentec was so convinced of the suitability of AvK generators for the Oil & Gas sector that they placed another order, this time for 4 AvK DIG 130 generators delivering a total of 6,400 kVA power.

For more information on AvK generators or Cummins Oil & Gas products, please visit: www.stamford-avk.com www.CumminsOilandGas.com

Customer: Bentec

Where: Siberia, Russia

Specified: 16 x DSG 86 generators

Purpose: Generate 25MW power for an Onshore Oil & Gas Stationary Rig


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insight - stamford · foreword welcome to the 4th edition of generating insight. like many...

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