str-1419 specification for transformer … ann. b tech. spec.… · ... numerical differential...

THE ISRAEL ELECTRIC CORPORATION LTD ENGINEERING DIVISION SPEC: STR-1419 SUBSTATION PLANNING SECTOR ANNEXURE “B”

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THE ISRAEL ELECTRIC CORPORATION LTD.

ENGINEERING PLANNING DIVISION

SUBSTATION PLANNING SECTOR

STR-1419

SPECIFICATION FOR

TRANSFORMER PROTECTIONS

December

2015


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TABLE of content

1. PURCHASER: ). .................................................................................................. 4

2. NAME OF PROJECT ............................................................................................................. 4

3. Location of Project: ................................................................................................................ 4

4. SCOPE F WORK: ............................................................................................................... 4

5. Terminal Points & Terminal Connection ................................................................................ 7

6.Quality Assurance and Quality Control ................................................................................... 7

7.Standards and Codes ................................................................................................................ 9

8.Technical Documentation ...................................................................................................... 11

9.Technical Requirements ........................................................................................................ 14

10.Tests & Inspections .............................................................................................................. 36

11.Packaging & Delivery .......................................................................................................... 37

12.Storage & Handling ............................................................................................................. 38

13.Nameplate & Marking ......................................................................................................... 38

14. Notes ......................................................................................................... 39

15.Special Requirements .......................................................................................................... 39

QUESTIONNAIRE ……………………………………………..pages BB1-BB55

APPENDIXES

APPENDIX NO. 1

Reliability Statistics

APPENDIX NO. 2

Transformer Protections Drawings

APPENDIX NO. 3

Transformer Protection Acceptance Test Programs (For tests in Purchaser's Laboratory)

APPENDIX NO. 4

Earthing Instructions

APPENDIX NO. 5

Name plate specification

APPENDIX NO. 6

Protection settings

APPENDIX NO. 7

Procurement quality requirements

APPENDIX NO. 8

Time synchronization

APPENDIX NO. 9

Security Safeguard Requirements for Control and Data Acquisition Systems in IEC facilities

APPENDIX NO. 10

Cubicles Wiring Standard Requirements

APPENDIX NO. 11

Painting Instructions


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1. PURCHASER: The Israel Electric Corporation Limited (IECo)

2. NAME OF PROJECT: Transformers Protections.

3. Location of Project:

IECo Substations, Switching stations .

4. SCOPE OF WORK: Design, develop, manufacture, cooperate with others where necessary,

factory tests, supply all relevant engineering and information necessary for

complete design of the Transformer Protections installation and for all other

purposes linked with proper operation as well as for commissioning and

maintenance, preserve, pack and furnish, delivery in Purchaser’s stores or sites,

test and verify equipment on site, provide technical guidance and assistance, all

in accordance with this Specification as detailed hereunder.

4.1 The Contractor shall supply the equipment according to following items:

4.1.1 Basic Order

4.1.1.1 Item 1: Transformer Protections for two (2) winding transformers (Drawing:

STR-1419-1.1, STR-1419-1.2), each protection comprise the following:

a) One (1) Numerical Differential Protection (full digital)

b) One (1) Numerical Overcurrent Protection (HV Side) (full

digital)

c) Two (2) Lock-out Relays

d) Ancillary equipment for Horizontal panel mounting of Items: 1.a,

1.b, 1c.

The Transformer Protections is to be supplied and installed in cubicles wired up

and tested

Quantity: 10 + 50% - 20%

4.1.1.2 Item 2: Transformer Protections for two (2) winding transformers with

neutral current measurement (Drawing: STR-1419-2), each protection

comprise the following


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digital)

c) One (1) Numerical Restricted Earth Fault Protection (LV

Side) (full digital)

d) One (1) Numerical Zero Sequence Overcurrent Protection

(LV Side) (full digital)

e) Two (2) Lock-out Relays

f) Ancillary equipment for Horizontal panel mounting of Items: 2.a,

2.b, 2c, 2d.


and tested

Quantity: 56 + 50% - 20%

4.1.1.3 Item 3: Transformer Protections for three (3) winding transformers

(Drawing: STR-1419-3), each protection comprise the following:



digital)

c) One (1) Numerical Restricted Earth Fault Protection (LV Side)

(full digital)

d) One (1) Numerical Zero Sequence Overcurrent Protection (LV Side) (full

digital)

e) Two (2) Lock-out Relays

f) Ancillary equipment for Horizontal panel mounting of Items: 3.a,

3.b, 3c, 3d, 3e


and tested

Quantity: 8 + 50% - 20%


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4.1.1.4 Item 4 Protections for YN0+d auto-transformer (Drawing: STR-1419-4.1,

STR-1419-4.2), each protection comprise the following:



digital)

c) One (1) Numerical Restricted Earth Fault Protection (LV Side)

(full digital)

d) One (1) Numerical Zero Sequence Overcurrent Protection (LV Side) (full

digital)

e) One (1) Numerical Zero Sequence Overvoltage Protection (LV Side) (full

digital)

f) One (1) Numerical Overexcitation Protection (LV Side) (full digital)

g) Two (2) Lock-out Relays

h) One (1) Trip relay

i) Ancillary equipment for Horizontal panel mounting of Items: 4.a,

4.b, 4c, 4d, 4e, 4f, 4g, 4h


and tested

Quantity: 10 + 50% - 20%

4.1.1.5 Item 5: Spare Parts

4.1.2 Option Order

4.1.2.1 Item 6 Numerical Differential Protection (full digital)

4.1.2.2 Item 7 Numerical Overcurrent Protection (HV Side) (full digital)


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4.1.2.3 Item 8 Numerical Restricted Earth Fault Protection (LV Side) (full

digital)

4.1.2.4 Item 9 Numerical Zero Sequence Overcurrent Protection (LV

Side) (full digital).

4.1.2.5 Item 10 Numerical Zero Sequence Overvoltage Protection (LV

Side) (full digital).

4.1.2.6 Item 11 Numerical Overexcitation Protection (LV Side) (full

digital)

4.1.2.7 Item 12 Lock-out Relay

4.1.2.8 Item 13 Trip relay

4.1.2.9 Item 14 Transformer Protections for two (2) winding

transformers, as detailed in Item 1 supplied as loose equipment.

4.1.2.10 Item 15 Transformer Protections for two (2) winding


4.1.2.11 Item 16 Transformer Protections for three (3) winding


4.1.2.12 Item 17: Protections for YN0+d auto-transformer as detailed in

Item 4 supplied as loose equipment.

4.1.2.13 Item 18: On site commissioning of the complete transformer

protection scheme.

4.1.2.14 Item 19: Guidance course to be held in Israel.

5. Terminal Points & Terminal Connection

The Transformers Protection cubicles will be supplied fully wired up and

tested . The loose Transformers Protection will be supplied with all the

ancillary equipment and will be installed and wired in IECo substations by

IECo technicians. The setting and programming of the Transformers

Protection will be performed by IECo according to the guiding course and

with the supplier support .

6. Quality Assurance and Quality Control

6.1 General Quality Requirements

6.1.1 Quality Assurance


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6.1.1.1 In addition to the provisions of the General Conditions Annexure "A" -

"CONTRACTOR'S DOCUMENTATION" and APPENDIX No 7 “QUALITY

REQUIREMENTS”, the Contractor's Quality Assurance Program shall meet the

requirements described in ISO Standard 9001.

6.1.1.2 The Purchaser shall have the right to audit and comment on

Contractor's Quality Assurance system regardless of whether it was previously

audited by a certifying agency or any other body.

6.1.1.3 The Contractor shall be responsible for assuring that his

subcontractor's Quality Assurance/ Quality Control Programs, including their

organizations, procedures, personnel qualification etc, are approved and are

consistent with the specific requirements imposed by the Purchaser in the

Specification.

6.1.1.4 The Contractor warrants that the work will be of the best quality and

satisfactory to the Purchaser.

Materials and equipment shall be the best of their respective kinds, and shall

be new and unused in all cases and shall meet the performance and other

requirements of the Contract including this Specification.

6.1.2 Quality Control

6.1.2.1 An Inspection & Test Plan, including witness points and hold points, shall

be mutually agreed between the purchaser and the contractor immediately

after awarding the contract

6.1.2.2 Test and Inspection certificates as required in the Specification and the

applicable Standards, shall be submitted immediately following their issue.

The certificates have to be original, signed by the Contractor, and contain

actual measured values.

6.1.2.3 The generation of certificates, including those generated by Subcontractors

and sub-Bidders shall bear no extra cost to Purchaser.

6.1.2.4 Manufacturing shall not commence prior to respective drawing approval by

the Purchaser.

6.1.2.5 Changes in the Purchaser's approved design are normally unaccepted.

However, should such changes become necessary on an exceptional

basis, the Contractor shall obtain the Purchaser's approval prior to

introducing any change.


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6.1.2.6 Any Equipment which does not conform to drawings, specifications or other

purchase order requirements which never the less are considered by the

Contractor as "acceptable as is" or for "repair", shall be submitted to the

Purchaser for approval, with their recommended dispositions. All such non-

conformances shall be approved by the Purchaser, shall be documented,

and a copy of the approval shall accompany each shipment.

6.1.2.7 Proficient, approved organizations or individuals, using documented

procedures shall conduct source inspection, including inspection of local

manufacturing. Any such independent inspector shall be subject to

Purchaser's approval.

6.1.2.8 All materials used in the manufacture of the equipment shall conform to the

Specification, approved drawings and accepted Standards.

6.2 Interchangeability

The Transformers Protection of the same type and rating shall be respectively

interchangeable with each other, and when so interchanged, shall perform their

function equally well in every respect, both electrically and mechanically. All

Transformers Protection dismountable parts of the same type and ratings, shall

be also interchangeable, and when so interchanged, shall perform their function

equally well in every respect.

7. Standards and Codes

Unless otherwise specified the Transformers Protection and all its components

shall be designed, manufactured and tested in accordance with the

requirements of the latest relevant published standards of the International

Electrotechnical Commission (IEC). All aspects, tests, etc., not covered by the

above-mentioned standards, should be executed according to the latest

published issue of official or otherwise approved standards of Manufacturer's

country. The Bidder shall state all relevant standards.

In the event of a variance between the general requirements of the standards and particular requirements of this Specification, the Specification shall take precedence.


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The following standards are applicable in the relevant parts to the individual

components of the Transformers Protection :

IEC 61850 design of electrical substation automation

IEEE standard C57.91-1995 Guide for Loading Mineral-Oil-Immersed

Transformers

IEC 60144 Degrees of protection of enclosures for low-voltage switchgear and

controlgear

IEC-61000-4-2 Electromagnetic compatibility (EMC) –. Part 4-2: Testing and

measurement

techniques

IEC-61000-4-3 Radiated, radio-frequency, electromagnetic field immunity test

IEC-61000-4-4 Electrical Fast Transient / Burst Immunity Test

IEC-61000-2-1 Electromagnetic compatibility (EMC) - Part 2: Environment -

Section 1

IEC-61000-2-2 Environment - Compatibility levels for low-frequency conducted

disturbances and signalling in public low-voltage power supply systems

IEC-61000-4-8 Testing and Measurement Techniques - Power Frequency

Magnetic Field Immunity Test

IEC–60225 PT5 High Voltage Impulse

ANSI/IEEE C37.90 Surge Withstand Capability

IEC-60225 PT22-4 Fast transient test

IEC-60225 PT22-1 High frequency disturbance test class III

IEC-60225 PT22-2 Electrostatic discharge test (ESD) Class 3

ENV 61000-4-3 Radiated Immunity from digital communications

IEC 61000-4-9 Power Frequency Magnetic Field Immunity

IEC 61000-4-10 Power Frequency Magnetic Field Immunity

ENV 50204 Radiated Immunity from Digital Radio Telephones

89/336/EEC EMC compliance

IEC-60255 PT11

IEC-60255 PT21-1 class 1 Vibration

IEC 60068-2-6 Vibration

IEEE 693 Seismic qualification

72/23/EEC Compliance with European Commission Low Voltage Directive

IEC 60255-6 Ambient temperature range

IEC-60225 PTO-20 Contact performance test

ISO 9001-2000 Quality management systems.

IEC 60255 Electrical relays.

IEEE Std. 693 -2005 Recommended practice for seismic design of

substations.

IEC 60529 Degrees of protection provided by enclosure (IP code).


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8. Technical Documentation

8.1. General

During the tender process, IECo, on its own discretion, may ask to receive additional

technical documents relevant to the bidder’s proposal. The bidder will be obliged to

submit the documents according to a specified time.

8.2 Technical Documents to Accompany the Proposal

The Contractor should submit with the proposal the following documents and

information in four (4) copies, and two (2) compact discs in PDF (DWG for drawings)

format:

8.2.1 Questionnaire: All Clauses.

8.2.2 Quality Assurance documentation

Quality Assurance related documentation, according to the Appendix No.7:

"PROCUREMENT QUALITY REQUIREMENTS" (spec. No: Q – APP – 02)

should be submitted for information. Particularly the following:

• Certification of Approval of the Quality Assurance System according to the

ISO 9001 Standard given by an Authorized Inspection Agency.`

• Qualification of Subcontractor's Procedure.

• List of qualified Bidders of the most important parts and components.

• A preliminary Inspection and Test Plant (I&T plan).

8.2.3 Drawings and tests

a. Detailed schemes and wiring diagrams of the Transformer Protections.

b. A sample of final factory test reports of similar Transformer Protections.

c. Type test reports for offered Transformer Protections including test circuit,

instruments and description of method.

d. Specific test report (authority, number and date) for offered Transformer

Protections.

e. Manufacturer's requirements for storage (6 mounth) before erection.

f. Reference list for basic order and options for the last five years.

g. Drawings and description of packing, handling and storage.


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h. A list of recommended testing equipment for the offered Transformer

Protection.

i. A list of recommended special tools and instruments necessary for

maintenance and repair.

j. A list of recommended spare parts (including total quantities, catalog

numbers, and drawings) and the guaranteed availability period.

k. A list of all parts which could wear out after five (5) years, ten (10) years and

twenty (20) years of operation according to Supplier or users experience.

l. Calculation of capacitors life expectancy.

m. Instruction book for erection, operating and maintaining.

In addition Supplier is requested to fill in the enclosed APPENDIX 1 “Reliability and

Maintainability requirements” based on relevant information from users. Supplier

shall describe the system of relevant data collection from users. This data is to

establish the Contractor’s reliability statements.

All the drawings and information submitted with the proposal shall be final drawings

and final information approved by the Bidder.

A proposal not including the drawings and information mentioned above will

be rejected.

8.2.4 Evaluation of Contractor’s Technical Proposal

8.2.4.1 Bidder’s offered data and parameters as well as definite answers or

comments will be evaluated from a technical point of view .

8.2.4.2 The evaluation will be carried out according to the bidder's answers to the

Questionnaire .

8.2.4.3 The evaluation will be carried out according to a decision tree based on the

bidder's answers to the Questionnaire

8.2.4.4 Bidders are required to meet the COMPALSORY REQUIREMENTS set

forth in this specification, which are marked in the questionnaire as ©.

Such requirements are deemed by IECo to be central to the purpose of this

purchasing process. Failure to meet the compulsory requirements shall

entitle IECo to disqualify the proposal. Without derogation therefrom, the

IECo shall have a right to disqualify a proposal, at its discretion, on any

technical and/or commercial grounds.


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8.2.4.5 The bidders are not entitled to ignore any of the sub clauses of the

Questionnaire. IECo is entitled to disqualify any bidder that will ignore any

of the sub clauses.

8.2.4.6 The bidder will supply for IEC lab test, along with the tender documents

one working Transformer Protection from each type (Item 1, Item 2, Item 3,

Item 4). The bidder will supply all the necessary equipment, firmware,

software and manuals to enable the test of the relays in IECo labs.

The test will be focused on the functional performance of the protection

relays. The tests programs are detailed in APPENDIX No. 3. The tests

report results will be taken into account in the evaluation of the bidder's

proposal.

8.3 Technical Documents After Notification of Award

8.3.1 After notification of award, Contractor shall submit to the Purchaser for

approval, within 30 days of the date of award (4) four sets of prints, and

four (4) compact discs in PDF (DWG format for drawings) format, covering

the following information:

8.3.2 If the prints are returned by the Purchaser and stamped "Approved Except

as Noted", the contractor shall correct the drawings according to

Purchaser's demands and shall resubmit for approval required copies of

the corrected drawings as stated above.

8.3.3 After approval of the above drawings, but not later than one (1) month

after the date of award, Contractor shall submit to the Purchaser the

following:

8.3.4 Seven (7) sets of complete instruction books as may be required for

erecting, operating and maintaining equipment, and Seven (7) compact

discs with the complete instruction books in PDF format, drawings in

DWG.

8.3.5 Wiring diagrams including terminal notations.

8.3.6 Drawings that show the terminal blocks and connectors for on-site external

connections.

8.3.7 Equipment list.

8.3.8 Detailed drawings of the basement arrangements (bolts, holes, etc.)

necessary for erection. A general block diagram of the protection showing

the main circuits (currents, D.C. supply, trips, alarms, etc.) and the logical

interconnection between the different parts of the protections.

8.3.9 Detailed schematic diagrams for the protections circuits.

8.3.10 Type and characteristics of all relays and equipment.


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8.3.11 The terminals and connectors shall be clearly numbered and shall appear

on the schematics as well as on the wiring diagrams.

8.3.12 If the Transformer Protections include items that shall be separately

mounted (as relays, etc.) outline drawings, schematic and wiring diagrams

shall be provided for each of those items.

8.3.13 The Purchaser reserves himself the right to reject equipment not

manufactured according to approved drawings.

8.3.14 Contractor shall complete engineering details immediately after award of

contract regardless of shipping date.

8.3.15 Contractor is free to supply any additional information considered

necessary to clarify various aspects of operation, maintenance etc.

8.3.16 Purchaser reserves himself the right to request all necessary additional

data, descriptions, drawings, etc., that may contribute to complete the

information supplied by the contractor.

8.3.17 All data and descriptive material in the above drawings and instruction

books shall be in English. All dimensions to be shown in metric units.

8.3.18 Contractor may be required to send his representative to discuss and/or

explain parts of his documents/drawings with IEC's representatives.

9. Technical Requirements

9.1. Environmental Considerations & Service Conditions

9.1.1 Environmental Conditions

Operating temperature range:

� Maximum (deg. C) +55

� Minimum (deg. C) - 5

� Relative humidity:

Annual average, (%) 75

High-relative humidity during 30 days, (%) 95

Permissible altitude above sea level, (m) 1000


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9.1.2 SYSTEM DATA

9.1.2.1 HV system data

� Rated voltage: 161KV

� Highest operating voltage: 170KV

� Operating frequency: 47-51Hz

� Earth fault factor: not exceeding 1.4

� System neutral: effectively grounded

9.1.2.2 MV system data

� Rated voltage: 13.2KV, 24KV, 36KV

� System neutral:

For 24KV, 36KV stations:

Resonant earthing by Petersen coil through earthing transformer (for

secondary winding connected in delta) or solidly earthed.

For 13.2KV stations:

Earthing resistor.

� Short circuit capacity: 750MVA.

9.1.2.3 Transformers types

Five types of transformers exist:

1. 30MVA – Dy11, 161/24KV or 161/36KV

2. 45MVA – Yd11, 161/24KV

3. 45MVA – Dy11, 161/36KV

4. 50/25/25MVA – YNYn6d, 161/13.2/13.2KV

5. 75MVA – Yd11, 161/24KV

6. 650MVA – YN0+d, EHV/HV/MV

The neutral point of the 30MVA transformers is equipped with arc-suppression

Petersen-Coil for inductive-earthing, and Earthing-Switch for direct-earthing. One of

the earthing methods will be in use.

The neutral point of the 45MVA or 75MVA transformer will be equipped with an

Earthing-transformer. The neutral point of the Earthing-transformer is connected to a

Petersen-Coil for inductive-earthing, and to an Earthing-Switch for direct-earthing. One

of the earthing methods will be in use.

The two Low-voltage-side neutral points of the 50/25/25MVA transformers are

equipped with an 8Ώ resistor (rated current: 1000A for 15 sec).


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9.1.2.4 Short Circuit Currents

The following values of short circuit currents can be expected:

Single phase to ground (KA) 50

Two phase to ground (KA) 50

Three phase to ground (KA) 50

The time constant of the DC component of the short circuit is 0.02 to 0.06

9.1.2.5 Operating Times

Circuit Breaker breaking time 0.06 sec

9.1.2.6 Environmental Conditions

The protections will be installed in the control room of the substations.


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9.1.3. Seismic Qualification Level

9.1.3.1 Seismic qualification test shall prove that the equipment will operate fully

satisfactory during and after earthquake with ground acceleration 0.5g acc.

To IEEE 693.

9.1.3.2 Qualification by test is to be moderate level.

9.1.3.3 Qualification by combined test and dynamic analysis.

9.1.3.4 Contractor is required to submit a test report to prove the qualification level

and dynamic analysis report.

9.1.3.5 The dynamic analysis report shall be acc. To IEEE 693 and shall take into

consideration:

9.1.3.6 Damping ratio (%)

9.1.3.7 Natural frequency in x,y,z directions (Hz)

9.1.3.8 Resonant frequency in x,y,z directions (Hz)

9.1.3.9 Qualification by test is to be moderate level.

9.1.3.10 eismic qualification of equipment is acc. To IEEE 693/2005.

9.1.3.11 ualification level acc. To IEEE 693/2005 is moderate level.

9.1.4 Electromagnetic Environment

The Transformer Protections shall withstand an electromagnetic environment

having the following maximum severity levels according to IEC 60255-22 part

1,2,3,4

9.1.4.1.1 Severity level for electrostatic discharge (KV) 4

9.1.4.1.2 Severity level for radio frequency interference (V/m) 10

9.1.4.1.3 Severity level for electrical 1MHZ burst disturbance (KV) 2.5

9.1.4.1.4 Severity level for fast transient (KV) 2

9.1.5 Supply voltages for protection and controls:

DC supply for protection – 220V (range: -20% to +10%)

DC supply control and alarm – 60V (range: -20% to +10%)

AC auxiliary voltage – 240V (range: -10% to +10%)

9.2. Reliability, Availability and Maintainability (RAM)

The Supplier is requested to fill in the enclosed APPENDIX 1 “Reliability and

Maintainability requirements” based on relevant information from users. Supplier


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shall describe the system of relevant data collection from users. This data is to

establish the Contractor’s reliability statements.

9.3. Functional requirements

9.3.1 GENERAL REQUIREMENTS OF TRANSFORMER PROTECTION

RELAYS

9.3.1.1 Required Main Functions

The protection schemes are according to drawings: STR-

1419-1.1, 1.2, 2, 3, 4.1, 4.2, 5, 6, 7

9.3.1.1.1 Transformer Differential Protection

The 3 phase biased differential protection will:

i. Be of the digital type, suitable for the protection of the

transformers quoted in paragraph 9.1.2.3

ii. Be suitable for 19" rack mounting.

iii. Provide high-speed protection against the following faults:

1. Internal faults.

2. Phase to phase faults.

3. Earth faults.

4. Winding, layer and inter-turn

faults.

5. Faults in the leads between the current transformers and

power transformers.

iv. Contain a means of compensating for vector group and current

transformer differences without the use of auxiliary interposing

current transformers.

v. Have high-speed operating times even with small fault currents.

vi. Possess high through fault stability also during conditions of CT

saturation.


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vii. Be stabilized against errors of the current transformer ratios in

the event of external short circuits.

viii. Be stabilized against magnetizing inrush current when the

transformer is energized.

ix. Be stabilized against overfluxing.

x. Possess a standard wiring diagram regardless of power

transformer vector group.

xi. Contain at least 2 independent trip relays with normally open trip

contacts and 3 independent alarm relays with normally open

alarm contacts and 2 normally close alarm contacts.

xii. Provide the means for indicating the faulted phase.

xiii. Be provided with suitable testing and monitoring points.

9.3.1.1.2 Transformer Back-Up Phase Time Overcurrent Protection

The 3 phase overcurrent protection will:


transformers quoted in paragraph 9.1.2.3


iii. Possess the following current setting ranges for the rated

current:

• Normally inverse unit: 0-30 PU

• Instantaneous unit: 0.1-30 PU

iv. Provide a means of indicating the faulted phase.

xiv. Contain at least 2 independent trip relays with normally open trip



v. Be provided with suitable testing and monitoring points.


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9.3.1.1.3 Transformer Restricted earth fault Protection

The biased Restricted earth fault protection will:


transformers Items 3,4


iii. Provide high-speed protection against phase to earth faults.

iv. Contain a means of compensating for current transformer

differences without the use of auxiliary interposing current

transformers.

v. Possess high through fault stability also during conditions of CT

saturation.

vi. Be stabilized against errors of the current transformer ratios in

the event of external short circuits.

vii. Be stabilized against magnetizing inrush current when the

transformer is energized.

xv. Contain at least 2 independent trip relays with normally open trip



vi. Be provided with suitable testing and monitoring points.

9.3.1.1.4 Transformer Zero-Sequence Overcurrent Protection

The Zero-Sequence Overcurrent protection will:


transformers Items 2,3,4


iii. Provide high-speed protection against phase to earth faults.


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iv. Possess the following current setting ranges for the rated

current:

• Normally inverse unit: 0-30 PU

• Instantaneous unit: 0.1-30 PU

xvi. Contain at least 2 independent trip relays with normally open trip



v. Be provided with suitable testing and monitoring points.

9.3.1.1.5 Transformer Overexcitation (V/Hz) Protection

The Overexcitation protection will:


transformers Items 4


iii. Provide high-speed protection against high magnetic flux density

in the transformer core, resulted by over voltage and/or low

system frequency.

iv. Possess transient immunity against fast transient signals.

v. Contains 110/√3 V measuring input.

vi. Shall have an instantaneous output and a separate definite time

delay output.

vii. Contain at least 2 independent trip relays with normally open trip


alarm contacts and 2 normally close alarm contacts..

vii. Be provided with suitable testing and monitoring points.


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9.3.1.1.6 Transformer Zero Sequence Overvoltage Protection

The Zero Sequence Overvoltage protection will:


transformers Items 4


iii. Provide protection against phase to earth faults.

iv. Possess transient immunity against fast transient signals.

v. Contains 110/√3 V measuring input supplied by the open delta

winding of the VT installed on the autotransformer 36KV side.

vi. The measuring element shall be delayed by a time delay

function.

xvii. Contain at least 2 independent trip relays with normally open trip



vii. Be provided with suitable testing and monitoring points.

9.3.1.1.7 Lock Out Relays

Each lock out relay will:

i. Be of the electrically operated manual reset type.

ii. Be of the high-speed trip type (approx. 8ms operate time).

iii. Be used as an auxiliary relay for control purposes.

iv. Be suitable for 220V D.C. operation.

v. Contain at least 12 normally open and 6 normally closed

contacts in the reset position for Items 1, 2, 3, and at least 16

normally open and 6 normally closed contacts in the reset

position for Item 4.


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vi. The Contacts of the Lockout relays will have the following

characteristics:

� Rated voltage: 220V DC .

� Permissible current: 5A continuous.

� Make and carry for 0.5 sec: 30A, Inductive load (L/R=0.04s)

� Breaking capacity : 0.15A , Inductive load (L/R=0.04s)

� Response time/drop out time: less than 4 mS

Durability:

� Loaded contact: 10,000 operations minimum.

� Unloaded contact: 100,000 operations minimum.

vii. Contain visual means for indicating state of relays.

9.3.1.1.8 Trip Relays

i. Each Trip relay will:

ii. Be of the electrically operated type.

iii. Be of the high speed trip type (approx. 6ms operate time).

iv. Be used as an auxiliary relay for control purposes.

v. Be suitable for 220V D.C. operation.

vi. Contain at least 8 normally open medium-trip-duty contacts in

the reset position.

vii. The Contacts of the Trip relays will have the following

characteristics:






Durability:



viii. Contain visual means for indicating pick-up of the relay and a

visual indicator.


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9.3.1.2 Required Auxiliary Functions

9.3.1.2.1 Events recording:

The Transformer protection relays shall be provided with the required non

volatile memory for:

� Storage capacity: at least 500 time tagged events

� Time-tag: resolution of 1 microsecond (time tag will include also date of event).

� Triggers: Any element pickup, dropout or operate, digital input change of state.

9.3.1.2.2 Synchronizing of internal clock

The Transformer protection relays (internal clock) shall be synchronized via the

Communication network in accordance with the requirements of standard IEC

61850.

The Time Synchronization of the Transformer protection relays will be according to

APPENDIX No.8.

9.3.1.2.3 Disturbance Recorder

The Transformer protection relays will be provided with the required memory for:

� Storage of at least: 8 analogue, 8 digital and one time channels.

� Data sampled rate: 12 times a cycle.

� Memory volume: enough for storage of 20 disturbances (25 cycles before

fault until 75 cycles after fault), Total volume of at least 2 seconds.

� All channels and trigger sources are to be user configurable.

The events and the disturbance recordings full data, including oscillography is to

be collectable by means of communication to a P.C. and to the Substation-

Control-System. The Contractor is to supply the appropriate software for

downloading the data. The oscillography files are to be in COMTRADE file format.

9.3.1.2.4 Communication between the Transformer protection relays

and a Central Substation-Control-System (see drawing No.

STR-1419-5)

The Information exchange between the Transformer protection relays and the main

Computer/server of a Substation-Control-System will conform to all the requirements


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of standard IEC 61850, and in particular to IEC 61850 – 6, 7-1, 7-2, 7-3, 7-4 and 8-1

(Communication networks and systems in substations).

The communication functionality of the Transformer protection relays will conform to

Security Safeguard Requirements for Control and Data Acquisition Systems in IEC

facilities as detailed in APPENDIX No. 9

The following measurement information and settings may be accessed from a

portable PC and the main Computer/server:

• Display and modifications of all settings.

• Digital I/O signal status.

• Display and extraction of measurements.

• Display and extraction of fault records.

• Display and extraction of event and alarm records.

• Programmable scheme logic settings.

• Reset of fault and alarm records.

• Clear event and fault records.

• Time Synchronization.

• Control commands.

9.3.1.2.5 Counting of tripping and closing of CB's

Three internal counters in the Transformer protection are to be provided for

independent counting of the number of CB trip operations performed.

The Transformer protection will accumulate the value of tdtIfault ×∫2)( for each

phase separately, until reset.

9.3.1.2.6 HMI interface

The Human Machine Interface (HMI) for the Transformer protection relays shall be

made possible using the following user interfaces:

1. Serial interface for communication with a portable PC.

2. Serial interface for communication with the main Computer/server of a

substation control system.

The Transformer protection relays front panel shall be equipped with, at least, 8

user-programmable indications, alarms and trip signals (e.g. LEDs).

The HMI operating language shall be English. The user interface program is to

supports WINDOWS 7, be in English and included in the scope of supply.


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The following measurement information and settings may be accessed from a

portable PC and the main Computer/server of a substation control system:

• Display and modifications of all settings.

• Digital I/O signal status.

• Display and extraction of measurements.

• Display and extraction of fault records.

• Display and extraction of event and alarm records.

• Extraction of disturbance records.

• Programmable scheme logic settings.

• Reset of fault and alarm records.

• Clear event and fault records.

Memory shall be provided to store four settings, which can be selected by an

external signal. Alteration of setting data shall be protected by means of a code

word.

The user interface program is to support two ways of handling changes to the

relays settings:

1. In the "on-line" mode (relay connected to a portable PC and/or the main

Computer/server) relay setting will directly modify any protection via the user

interface program, and than save the settings to the relay.

2. In the "off-line" mode (relay disconnected) relay settings files will be created or

edited for later download to communicating relay.

The Contractor shall submit a comprehensive list of each of the operations that

may be executed "on-line" and "off-line".

9.3.1.2.7 Programmable scheme logic

The Transformer protection relays will include programmable scheme logic that

allows customizing the control and protection functions, and to program the

functionality of the optically isolated inputs, relay outputs and LED indications.

The programmable scheme logic comprises gate logic and general purpose timers.

The programmable scheme logic configuration-software supports WINDOWS 7, be in

English and be included in the scope of supply.

9.31.2.7.1 The programmable software is to have the following characteristic:

9.3.1.2.7.1.1 Inputs to the Software:

1. Binary electrical inputs to the relay.


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2. Internal binary variables created by the protection.

3. Analog values measured by the relay or calculated by the relay.

4. Binary outputs from other parts of the user’s software.

5. Remote inputs in accordance with the IEC 61850 "Generic Object

Oriented Substation Event (GOOSE)" specification.

9.3.1.2.7.1.2 Outputs of the Software:

1. Output contacts of the relay.

2. Inputs to the protection software (which also can be activated by

external electrical inputs to the relay).

3. LEDs on the front of the relay.

4. Other inputs segments of the user’s software.

5. Event recording.

6. Remote outputs in accordance with the IEC 61850 "Generic Object

Oriented Substation Event (GOOSE)" specification.

The processing of the programmable scheme logic is not to affect the proper

operation of the protection.

The Bidder is to supply data regarding the CPU loading vs. the user’s logic size in

use.

Alarm notification is to appear in case the user’s logic size is lessening the proper

operation of the protection.

9.3.1.3 Self-Monitoring, Self Testing and Supervision

The Transformer protection relays shall perform continuous self-monitoring and self-

testing of its auxiliary supply voltage, hardware and software with fault diagnostic

display. Upon detection of a hardware fault, the relays shall block themselves and

issue an alarm.

In the event that a software fault is detected, the microprocessor shall reset and

restart. If restarting does not eliminate the fault, the relay operation is to be blocked.

In the event of a fault in the Transformer protection relays a fault message shall be

sent to the main Computer/server of a substation control system, visual indication will

appear on the Transformer protection relays front panel and a signaling potential-free

"watchdog" contacts will change position to "relay-fail" position.

The Contractor shall submit:

1. A list of the modules in the protection relays which perform continuous self-

monitoring.


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2. A list of all the fault messages produced by the protection relays, their

meaning, and the required correctional operation for each fault.

9.3.1.4 Algorithms and Software

The Contractor shall submit a comprehensive description of the signal processing

methods used to make relaying decisions. A detailed description of the algorithm,

used to calculate fault conditions, shall be provided with tender documents.

This description shall also include:

� Sampling rate.

� Digital filtering methods.

� Calculation accuracy.

Additionally, the Contractor shall submit a comprehensive description of the software

implemented in the microprocessor, including overall relaying flow-chart and type of

input-output control.

9.3.1.5 Firmware

The Transformer Protection Relays will be delivered with the latest firmware version

(related to the delivery date of each relay). The contractor will inform the Israel

Electric Company about each new firmware version release for the Transformer

Protection Relays. For five years from the order date of each of the Transformer

Protection Relays, included in the current contract, the new firmware versions, and

comprehensive instructions and support for upgrading the firmware will be offered to

the Israel Electric Company free of charge.

9.4 Properties

N/A.

9.5 Design & Construction

9.5.1 Mechanical Design Requirements

9.5.1.1 Transformers Protection Cubicles

9.5.1.1.1 Each transformer protection that will be installed in a cubicle will be

mounted on the control room floor over cable ducts, or on a floating

floor. The cubicles may be located with the rear to a wall and in line with

other cubicles, mounted on either side of the protection cubicles.


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9.5.1.1.2 Access to the internal equipment of the cubicle shall, therefore, be from

the front only.

Nevertheless, each cubicle shall be provided with rear and side panels.

The cubicles shall be supplied fitted with protective unbreakable

transparent doors. The cubicle shall be protected against splash water,

up to 60 cm from the floor.

9.5.1.1.3 Any manual controlled equipment will not be mounted higher than

180cm or lower than 60cm. The protection shall be of tropical design

and protected against insects and vermin. The IP of the cubicle shall be

> 54.

9.5.1.1.4 Space shall be left on the hinged frame for the mounting of a

temperature monitoring unit (one 19" tier) and an automatic voltage

regulator (two 19" tiers).

9.5.1.1.5 CABLE CONNECTION AND WIRING REQUIREMENTS

9.5.1.1.5.1 All the cubicles shall be supplied with a removable bottom floor plate for

control cable glands.

9.5.1.1.5.2 All the cables shall enter the cubicles from the bottom via holes to be

drilled into the floor plates; be glanded by means of suitable cable

glands and be connected to terminal blocks.

9.5.1.1.5.3 The cubicles shall be completely wired and factory tested. All

interconnections between cubicles shall be made through terminals.

These connections shall be reduced to a minimum. Flexible conductors

shall be connected to the terminals by means of copper ferrules.

9.5.1.1.5.4 The terminals for external connections shall be made of thermosetting

plastic material (melamine).

9.5.1.1.5.5 Terminals for current circuits shall be of bridge type suitable for

connecting up to 10 mm2 cross section wires (Phoenix type RTK/S-Kri

or equivalent).

9.5.1.1.5.6 All the other terminals shall be of disconnecting type suitable for

connecting up to 4 mm2 cross section wires.


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9.5.1.1.5.7 At least 10% spare terminals (of each kind) are to be included in each

terminal strip.

9.5.1.1.5.8 Terminals will not be mounted lower than 30cms or higher than 190cms

from the floor.

9.5.1.1.6 EARTHING

Earthing should be according to Appendix No. 4.

9.5.1.1.7 For cubicle structure refer to drawings STR-1419-6,7 .

9.5.1.2 Transformers Protection Equipment

9.5.1.2.1 All the protection relays will be delivered as a 19-inch rack metal-

housing horizontal mount units.

9.5.1.2.2 The front panel of the relays will include the visual indications, and

control accessories (if exist) of the relay and the communication port

for a portable PC.

The rear of the relay will be equipped with the rest of the

communication ports, and clumping screw-type terminal blocks for

output contacts, CT and VT inputs and optically isolated inputs. Non-

standard terminals which require special conductor lugs or shoe

terminations will be supplied with enough lugs and/or shoe terminations

for the wiring of the relay.

9.5.1.2.3 Transformer protections included in Items: 1-2 may be supplied in

one case: "One-Box Solution" (i.e. the Differential protection and the

Overcurrent protection are included in a single case). Alternatively

The Transformer protection may be supplied in few cases or racks

(e.g. one case for the Differential protection, another for the

Overcurrent protection).

When supplied as "One-Box Solution", the Transformer protection relay

will include two redundant power supply units. Each power supply unit

will be supplied from separate independent 220V DC circuit breaker.

For Transformer protections included in Items: 3, 4 the Differential

protection and the Restricted Earth Fault protections should not be

included in the same case. Nevertheless, the cases of the Differential

protection and the Restricted Earth Fault protection may include other


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protections (i.e. Overcurrent protection, Zero sequence Overcurrent

protection, Zero sequence Overvoltage protection and Overexcitation

protection). When a single case contains more then one protection it

shall include two redundant power supply units. Each power supply unit

will be supplied from separate independent 220V DC circuit breaker.

9.5.2 Electrical Design Requirements

9.5.2.1 The protection relays shall be of fully digital type design.

9.5.2.2 The requirements of IEC publication 60255-5 "Insulation

Requirements for Relays" shall be fulfilled.

The protection relays shall be proven in operation and shall operate

satisfactory under the environmental conditions stated previously. The

relay shall be stable against vibrations.

The protection relays shall, in general, be insensitive to harmonics,

frequency variations, DC components in the fault currents and induced

high transient voltages.

The relays shall continue its proper operation in case of inadvertent

grounding of one point in the DC supply circuits, or any other point at

the terminal board.

9.5.2.3 The protection relays auxiliary voltages are to be continuously

supervised, with a fault indication provided upon detection of a

fault condition.

9.5.2.4 Each transformer protection relay shall be supplied from

independent conventional CT cores.

9.5.2.5 The protection scheme is to be supplied as a complete scheme

that includes all the necessary ancillary equipment as specified in

Items 1- 4.


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9.5.2.6 The protection relays shall include inputs from the: Buchholtz

Relay, Gas Oil Flow Relay and the Pressure Relief Device, for the

purposes of signaling and event recording.

9.5.2.7 The protection relays shall include provisions for connection of

testing and monitoring equipment for periodic testing of the

protection relays (i.e. test sockets, test plugs, test set, and

relevant software) without disconnection of the protection relays in

the test process.

9.5.2.8 The Transformer protection relays structure is to conform to IEC

standard 61850. Contractor is to provide the following information:

1. Basic LN information (according to IEC 61850-7-4)

2. IED Capability Description, ICD (according to IEC 61850-6)

The contractor has to submit, for the Transformer protection relays,

conformance test against IEC 61850-10.

9.5.2.9 Communication interfaces

The Transformer protection relays will have the following communication

interfaces:

1. RS232 serial data communication interface for local use with a portable PC

(the PC will have Windows 7 Operating System).

2. RJ45 ETHERNET communication socket for communication over the

substation's TCP/IP communication bus with IEC-61850 protocol (see

drawing No. STR-1419-5).

9.5.2.10 The I/O characteristics of the Transformer protection relays will be

as follows:

9.5.2.10.1 Binary inputs

The binary inputs of the relays will have the following characteristics:


� Power consumption: less than 2W

� Voltage thresh hold of logical true state is over 150V.

9.5.2.10.2 Signal and alarm outputs

The Signal and alarm outputs of the relays will have the following

characteristics:


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Durability:



9.5.2.10.3 Trip and control outputs

The Trip and control outputs of the relays will have the following

characteristics:






Durability:



9.5.2.10.4 Current inputs

The current inputs of the relays will have the following characteristics:

Rated current: 5A – for 161KV, 1A for 400KV.

Power consumption: less than 0.5 VA per phase.

Overload thermal capability:

• 100 X In for 1 sec

• 3 X In continuous

• Dynamic (impulse current) : 250 X Inom (half cycle)

9.5.2.10.5 AC voltage inputs

Rated voltage: 110V (phase to phase)

Continuous overload capacity: 1.5 X Un

Surge withstand capability: 2 X Un

9.5.2.11 The Power supply of the Transformer protection relays

Voltage range of the Power Supply Unit of the Transformer protection relays will

be: 220V DC ± 20%.

Two redundant Power Supply Units When the Transformer protection relays are

supplied as "One-Box Solution"

The relays will withstand high peak voltage transients, radio frequency interference

(RFI) and electro magnetic interference (EMI).


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9.6 Commissioning (Item 18 – Option)

Optional On-site commissioning of the transformers protections, prior to putting into

service may be required.

9.7 Operation & Maintenance

9.7.1 General

9.7.1.1 Bidder is to specify which individual part should be treated in the field before and during assembling, and to specify man-hours required for in the field works.

9.7.1.2 Bidder is to specify the time interval between required inspections and the man-hours required for periodical inspections.

9.7.1.3 Bidder is to specify the time interval between successive maintenance works and the man-hours required for maintenance works.

9.7.2 Spare & Renewal Parts

9.7.2.1 The Contractor shall indicate in the Proposal the life duration of the

equipment as a whole and the normal replacement cycle of the

component parts.

9.7.2.2 The Contractor shall include in its technical proposal a catalogue

containing all relevant potential Spare Parts for the proposed

equipment as well as propose a detailed list of Spare Parts

recommended for:

� The short term: start-up, commissioning and until expiration of

the warranty period.

� The long term: spare parts for periods of five (5) years as of the

end of the warranty period, and ten (10) years as of the end of

the warranty period.

9.7.2.3 Wear out components such as batteries electrolytic capacitor etc.,

maintenance and replacement policy is to be detailed in the bidder's

offer. The details are to include life span of the components,

replacements procedure etc.

.

9.7.2.4 The catalog and the lists shall include for each item:


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� Item description and item designation.

� Likelihood that the part will be required for replacement during

each relevant period (short term, long term).

� Name of Bidder and Manufacturer.

� Necessary catalogue data for separate order.

� Optimal stocking level.

� Lead time before supply (including transport time to Israel).

9.7.2.5 The Contractor shall identify the materials and items that have critical

effects on the System’s reliability and items that required special

maintenance treatments.

9.7.2.6 Purchaser shall review the catalogue and the lists of recommended

Spare Parts during the technical clarifications.

9.7.2.7 Upon Purchaser’s demand, each participant shall be required to

provide to Purchaser amended lists and catalogue, as part of its final

technical offer.

9.7.2.8 Based on participant’s catalogue, the Purchaser may prepare, prior to

submittal of price proposals, a list of representative Spare Parts with

equivalent functionality for evaluation purposes only.

9.7.2.9 As part of its price proposal, each participant shall quote a price for

each item in the catalogue and the recommended Spare Parts lists,

and shall include a long-term price escalation formula.

9.7.2.10 Evaluation of participant’s price proposals shall include comparison of

the representative list for each participant, with each participant’s

prices inserted therein.

9.7.2.11 Purchaser will not be required to purchase spare parts in accordance

with the representative’s list but rather in accordance with the

provisions set forth in the Agreement regarding the Spare Parts

option.

9.7.2.12 The catalogue provided by the participant with prices inserted therein

and the escalation formula shall be attached as an Annexure to the

Contract and shall be the basis for exercising the Spare Parts option.

9.7.2.13 After Contract execution and during the drawing approval process, the

Contractor shall provide Purchaser with the following details regarding

each item in the catalogue:

a) Identity of manufacturer (if not previously known);


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b) Bidder’s part number;

c) Manufacturer’s part number;

d) Name of recommended alternate Bidder and part number;

e) Detailed description of each item as required for ordering

(if not previously provided);

f) Whether the part is repairable or not;

g) Short term and long term storage instructions.

h) MTBF.

The above information shall be transmitted to Purchaser as a

computer database allowing for easy searches.

9.7.2.14 All Spare Parts shall be new and unused in all cases.

9.7.2.15 The Purchaser reserves the right to purchase said parts directly from

the manufacturer or from another sub-Bidder.

9.7.2.16 The Contractor guarantees that all the Spare Parts features will be

according to its catalogue and that the catalogue is periodically

updated to stay current.

10. Tests & Inspections

10.1 The Contractor shall carry out tests to prove satisfactory operation of all

transformers protections components as well as their co-ordinate operation

as a whole. The tests will be an integral part of the quotation.

10.2 The Purchaser will have the right to demand acceptance tests at the

manufacturer's facility with or without a representative of the Purchaser

being present; a written notice shall be given thereof at least 21 days in

advance of the date of the FAT. The acceptance test results will be

considered an integral part of the equipment delivery. A detailed protocol

thereof shall be forwarded to the purchaser on demand.

10.3 Contractor shall perform production tests on relays and related equipment

components to check the uniformity of the workmanship and materials used

in the manufacture.

10.4 To prove that the equipment has the capability to meet all requirements as

specified, the Contractor shall submit three (3) sets, and two (2) compact


B-37

discs in PDF format, of all type and routine test reports performed on

protection components and relays. The relevant standards, norms,

recommendations etc. are to be specified.

10.5 Contractor shall submit a list of tests to be performed on site, after mounting

of the equipment.

10.6 The transformers protections shall be tested, and test reports shall be

submitted.

10.7 The Purchaser may at his own discretion, require the Contractor to supply,

for testing at the Purchaser's facilities, some or all of the types of relays and

equipment offered. (see 8.2.4.6)

11. Packaging & Delivery

11.1 The equipment package for shipment shall be so designed and carried

out as to prevent any damage to equipment during shipment and during

prolonged (6 months) storage. under the following climatic and

environmental conditions:

Air pressure equivalent to altitude not exceeding 1000 m.

a. Ambient temperature up to 50° C.

b. Direct and continuous exposure to brilliant sun.

c. Sever atmospheric and industrial air pollution.

d. Salt spray and/or sand dust.

e. Long dry periods.

f. Long periods of high humidity and rain.

11.2 Each shipping container shall have a packing list and, in addition, shall

be marked with the following information:

a. Descriptive name(s) of equipment or supplies contained.

b. Quantity packed in container.

c. Serial numbers, if any, of the equipment contained.

d. Contract number.

e. Contractor's name and address (city, state, and country).

f. Gross weight of container.

g. Cubic volume of container.


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h. Complete destination marking.

i. Order number

11.3 Each of the items shall be separately packed and the destination clearly

marked.

11.4 Special care for ensuring air, moisture and water-tight packing for the

equipment as insulation, shall be ensured for a prolonged period (6

months) under the climatic and environmental conditions described above.

11.5 The Manufacturer shall state his own requirements for the storage of

equipment for a prolonged period (6 month), the outdoor ambient

conditions being those under Clause 9.1.

11.6 Packing List

11.6.1 The serial numbers of each piece of equipment included in the

shipment will be indicated on the shipment's packing list.

11.6.2 . The packing list will be supplied in two formats, as follows:

11.6.3 A printed copy of the packing list will be attached to all shipping

documents (standard practice);

11.6.4 A file of the packing list in digital format, created under any commonly-

used application which affords:

11.6.5 Locating the serial numbers by means of the Edit/Find command;

11.6.6 Copying the serial numbers by means of the Edit/Copy command.

11.6.7 Examples of such applications: Microsoft Word, Microsoft Excel,

Portable Document Format (.pdf), etc.

12. Storage & Handling

The equipment will be stored up to one year in IECo stores. See clause 11.1 for

storage conditions.

13. Nameplate & Marking

All the equipment items are to be provided with nameplates.

The protection relays, Lockout relays and trip relays are to be provided with

nameplates. The name plates content and installation mode should be according

to APPENDIX 5.


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The nameplates will be marked in a durable and legible manner and include at

least the following:

Manufacturer's name and address.

Manufacturer's type and designation number.

Rated current.

Rated voltage.

Rated frequency.

Rated burden (AC and DC)

Rated auxiliary (DC) voltage.

Setting ranges.

Insulation class.

Serial number.

Date of manufacture.

Order number.

14. Notes

Not relevant.

15. Special Requirements

15.1 Consultation in IECo premises in Haifa Israel

As part of the tender process the bidder’s expert/experts may be required to come to

IECo premises in Haifa Israel to consult the IECo regarding regarding the bidder

proposal.The bidder shall bear all it’s expenses involved in the consultation in IECo

premises in Haifa Israel.


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15.2 Information after Purchase

Contractor shall keep Purchaser informed about all improvements, developments,

changes, faulty operation and remedies applied in the construction of the

TRANSFORMERS PROTECTIONS components, by means of necessary

informative materials, after the purchase of the TRANSFORMERS PROTECTIONS.

15.3 Technical Support after Purchase

The Contractor is to provide the required information to enable repairs to the

equipment to be carried out on site.

In case on site repair is not possible, the manufacturer shall be responsible for the

repair, at manufacturer works.

15.4 Guidance-Course (Item 19 - Option)

The Contractor will offer a Guidance-Course. The aim of the course is to train IECo

technical personnel for setting, programming, operating, maintaining, and performing

commissioning of the TRANSFORMERS PROTECTIONS system.

The Course will be conducted in Israel for up to 20 people. The teaching language

will be English. The Guidance-Course will include theoretical and practical parts.

The contractor will be responsible for preparing all the learning-aids both for the

theoretical and for the practical parts. The practical parts will include exercises on all

the TRANSFORMERS PROTECTIONS components. The Guidance-Course will

include a final exam (theoretical and practical) to demonstrate the acquired

knowledge of the participants.

The program of the course and the exam will be subjected to IECo approval.