DOCUMENT: Electrical Standard Specification SUBJECT ... no CM707/9559 - CM-707... · 6.1 Enclosure and bearings 7 6.2 Windings and insulation 8 6.3 Monitoring provisions 9 6.4 Anti-Condensation

The Israel Electric LTD

Engineering Project Group

Engineering Division

Electrical & Controls Sector

This document contains proprietary information of Israel Electric Corporation (IEC) and is to be used for the Project and for the sole purpose for

which it is furnished. The recipient or anyone on its behalf shall not be entitled to use the document, or any part thereof, for any other purpose

without the prior written approval of IEC. The recipient shall keep this document in strict confidence and shall not transfer, disclose or divulge it to

any other person without the prior written approval of IEC.

IEC is the sole owner of all intellectual property rights associated with this document and any future work product thereof.

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STANDARD No.

EPD – A.11A

DOCUMENT: Electrical Standard Specification

SUBJECT: ELECTRIC HIGH-VOLTAGE MOTORS

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Electrical Standard Specification :מסמ� ELECTRIC HIGH-VOLTAGE MOTORS: נושא

: סוג מסמ�

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מ"חברת החשמל לישראל בע חטיבת פרויקטי� הנדסיי�

אג� תכנו� הנדסי ובקרהחשמלילתכנו� המגזר

� :מספר המסמ

:מספר הנוהל

EPD – A.11A The Israel Electric Corporation Ltd.

Engineering Projects Group



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ELECTRIC HIGH-VOLTAGE MOTORS

ELECTRICAL STANDARD SPECIFICATION

STANDARD No.

EPD – A.11A

CONTENT:

Page

1 Purpose 4

2 Scope 4

3 Applicable Standards 4

4 Service ambient conditions 5

5 Rating and performances 5

6 Constructional characteristic 7

6.1 Enclosure and bearings 7

6.2 Windings and insulation 8

6.3 Monitoring provisions 9

6.4 Anti-Condensation Space Heaters 10

6.5 Terminal boxes 10

6.6 Miscellaneous 11

7 Test and tolerances 12

8 Special requirements for motor selection 14

9 Motor technical data and documentation 15

10 References 16

11 Annexures 16

Annexure 1 – "Check list concerning data that must be included in the Project Specification"

17

Annexure 2 – "Electric High Voltage Motor Data Sheet " 18

Annexure 3 – "Electric High Voltage Motor Summary of Data "

19

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STANDARD No.

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1. PURPOSE 1.1 The purpose of the present Standard Specification is to make specific selections and

to provide additional requirements in the frame of the national, international or manufacturer's standards on which the motor design is based.

Therefore, the requirements of this Standard Specification are not exhaustive, being only connected to some topics of special interest.

1.2 The requirements are addressed to the motor manufacturers and to the suppliers of

equipment (systems) that includes electric motors. Some of them are also of interest for the power station designers.

1.3 Specific requirements connected to the interface with the ambient medium

(corrosion resistant material, surfaces protection, noise, coolant temperature) are not considered here. Some of them are subject to other guideline documents of the Israel Electric Corporation Ltd.

2. SCOPE 2.1 The requirements of this Standard Specification apply to three-phase squirrel-cage

type, induction motors for general use, with a rated voltage higher than 1000V. 2.2 Excluded from the scope of this Standard Specification are:

a. Motors for use in hazardous locations, where additional specific features are required. b. Motors designed for specific applications, e.g. motors for variable speed drives, or starting motors for reversible synchronous generator/motor units in pumped storage installations.

3 APPLICABLE STANDARDS 3.1 The electric motors included in the Scope of this Standard Specification have to

comply with the requirements of one of the following national or international standard groups: a. International standards – IEC (International Electrotechnical Commission). b. American standards: - ANSI (American National Standards Institute), - IEEE (Institute of Electrical and Electronics Engineers),

- NEMA (National Electrical Manufacturers Association).

3.2 The electric motors complying with standards other than national or international standards indicated in paragraph 3.1 may be accepted by Israel Electric Corp. The corresponding standards in English version shall be submitted with the Bid.

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3.3 In case of non-conformance between the present requirements and those of the

national or international standards or those of the Project Specification, the order of

precedence shall be as follows:

1. Project Specification - highest priority.

2. This Standard Specification - lower priority.

3. National or International standards - lowest priority.

4 SERVICE AMBIENT CONDITIONS 4.1 The altitude of the power stations does not exceed 1000 m above the sea level. 4.2 The expected ambient air temperature outdoors is: - Maximum: + 40˚C

- Minimum: - 10˚C The expected ambient air temperature indoors is indicated in the Project

Specification. 4.3 The seismicity conditions are stated in the Project Specification. 4.4 The outdoor motors are expected to be exposed to long dry periods without rain,

sometimes with very fine sand dust, changing suddenly to periods of high humidity and rain.

4.5 The outdoor motors might also be exposed to a moderate combination of conductive

or abrasive dust (such as coal dust, fly ash, etc.) with sulfur smokes, moisture, etc., as encountered in usual power plant applications.

4.6 The outdoor motors at sea shore locations are expected to be additionally exposed to coastal conditions with salt laden spray and storms.

4.7 The outdoor motors might be exposed during summer days to very intense solar

radiation, unless special protection, such as superposed roofs, is provided. 4.8 More severe ambient conditions than those indicated above have to be stated in the

Project Specification. 5 RATING AND PERFORMANCES 5.1 The rated frequency is 50 Hz. The rated voltage will be defined in the Project

Specification. 5.2 The motors shall operate successfully and shall develop their rated torque

continuously without damage under the following voltage and frequency variations:

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STANDARD No.

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1. Applied voltage: - between 0.9 and 1.1 p.u. of the rated voltage, with rated

frequency. 2. Applied frequency: - between 0.95 and 1.03 p.u. of the rated frequency, with rated

voltage. 3. Simultaneous variations of the voltage and frequency in the above indicated

ranges are also permissible, but the motor manufacturers are allowed to make some restrictions when both voltage and frequency deviations are close to their limits.

5.3 The motors shall be capable of momentary operation (for a minimum 60 s) under running conditions at rated load and frequency with a minimum of 75% of rated voltage at their terminals. This requirement takes into consideration the voltage drops due to the start of other motors or due to automatic transfer operation.

5.4 The motors shall be designed, built and adequately braced for direct-on-line starting, with full rated voltage applied at their terminals.

5.5 For the motors designed according to the Project Specification requirements, the

ratio of the starting current to the rated current at rated voltage should be as low as possible. For the motors larger than 2000 kW the ratio of the starting current to the rated current at rated voltage shall be less than 5.

5.6 The motors shall withstand the dynamic torque stressing due to the switching

phenomena (direct-on-line starting, short-circuit followed by transfer to another source and re-acceleration). The motor shall withstand the transient torques in case of bus transfer, if the resultant V/Hz between the motor residual V/Hz phasor and the incoming source V/Hz phasor at the instant of transfer or reclosing is completed does not exceed 1.33 p.u. V/Hz on the motor rated voltage and frequency basis.

5.7 The rated power-frequency withstand voltage level for the stator windings shall be:

2UN + 1kV where UN is the motor rated voltage (kV). 5.8 The motors shall have the following lighting impulse insulation level (wave 1.2/50µs):

- Base insulation (winding to earth):

UP = 4UN + 5kV where: UP – lighting impulse withstand level (kV peak);

UN – motor rated voltage (kV rms).

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- Interturn insulation: - to withstand an electrical impulse voltage within the envelope defined in Fig.1 of IEEE Standard 522-2004. An other technology based on IEC 60034-15 may be proposed by the motor manufacturers for approval by the Israel Electric Corporation Ltd.

For the motors that are not likely to see high-magnitude fast-fronted surges (e.g. a measure of protection from such surges is provided by installation of devices such as wave-sloping capacitor at motor terminals or surge arrestors), Project Specification may agree with the impulse withstand the envelope given on Fig.2 of IEEE Standard 522-2004.

5.9 Special requirements on high efficiency may be included in the Project Specification

for large motors, which will be operated many hours per year. In this case, the costs of the no-load losses and of the load losses will be indicated in the Project Specification. For Bid comparison, the cost of the losses will be added to the initial costs of the motor.

6 CONSTRUCTIONAL CHARACTERISTICS 6.1 Enclosure and bearings 6.1.1 The motor enclosure shall be designed according to IP55 degree of protection

(Totally Enclosed Water-Proof motor). Painting and corrosion-resistant materials, suitable for the ambient conditions indicated in the paragraph 4 of this Standard Specification or in the Project Specification, shall be used for the enclosure. A special attention shall be paid for the outdoor motors.

6.1.2 The following solution is required to be used for the motor cooling:

a. The primary coolant shall be air, self-circulated in a closed cooling circuit (Totally Enclosed motor). b. The heat will be transferred to the secondary (final) coolant by one of the following ways:

- Through the frame surface of the motor to the external air, by using or not an external mounted fan/s (TEFC and TENV motors).

- Through a motor mounted heat-exchanger to the external air (TEAAC motor); - Through a motor mounted heat-exchanger using water from the closed cooling

system of the Power Station as a secondary coolant (TEWAC motor). This last solution may be proposed by the Contractor just in case the using of the external air as a secondary coolant leads to an unacceptable technical solution or to an expensive one.

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STANDARD No.

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c. The solution of using an weather protected air-cooled open motor with adequate filters (WPII motor) may be accepted for the motor cooling, only in case that none of the solutions mentioned in paragraph 6.1.2.b are applicable due to technical reasons.

In such a case the Contractor will submit to the Israel Electric Corporation Ltd. a technical memorandum for its approval. In this Standard Specification, the meaning of the following abbreviations is: TEAAC - Totally Enclosed Air-to-Air-Cooled motor; TEFC - Totally Enclosed Fan Cooled motor; TENV - Totally Enclosed Non Ventilated motor; TEWAC - Totally Enclosed Water-to-Air Cooled motor; WPII - Weather–Protected Type II motor.

6.1.3 The bearings of all the motor types shall be protected by a dust-proof and water-

proof enclosure of a protection level similar to IP55, but not lower than the protection level of the motor enclosure.

6.1.4 The bearings with oil lubrication shall be fitted with a sight gauge marked with the

proper oil level and shall have fill and drain openings. When oil rings are used, means shall be provided for observing oil ring rotation while the motor is operating. The bearings with grease lubrication shall have grease valves for lubrication while the motor is running.

6.1.5 Where insulated bearings are required as a protection against the occurrence of

shaft currents, one or both bearings shall be insulated, in consideration of the motor-driven equipment assembly. At motors with one shaft extension, only the bearing opposed to the driven equipment has to be insulated. Sometimes, for similarity reasons, the motor manufacturer may provide for insulation of both bearings. At motors with two shaft extensions, both bearings have to be insulated, as well as one of the shaft couplings. Generally, piping and conduit to insulated bearings shall also be insulated.

6.2 Windings and Insulation

6.2.1 The rotor squirrel-cage shall be made of copper or copper-alloy bars. 6.2.2 The stator winding insulation shall be of Class F or Class H, but the temperature rise

shall correspond to Class B conditions.

6.2.3 The motors shall have form wound coils and the insulation systems shall be Vacuum Pressure Impregnated (VPI) with epoxy resin.

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6.2.4 The winding insulations shall be sealed systems as defined in NEMA Standard

MG1-2003, 1.27.2 and shall withstand an immersion test as covered in NEMA Standard MG1-2003, 20.18. Equivalent insulation systems based on IEC Standards may be used.

6.2.5 The six (6) terminals of the three (3) phases of the stator windings shall be brought out in the main motor terminal box for testing purposes. 6.3 Monitoring Provisions 6.3.1 The following temperature monitoring devices shall be provided:

a. The Stator winding: minimum six (two for each phase) Resistance Temperature Detectors (RTD),

uniformly distributed. The RTD's shall be embedded in the stator slots as follows: - If there are two or more coil-slides per slot, the RTD's shall be located between

the insulated coil-slides within the slot. - If there is one coil-slide per slot, the RTD's shall be located between the wedge

and the outside of the winding insulation. b. The primary cooling air circuits at the TEAAC and TEWAC motors:

one RTD in the cold air stream (cooler output) and one RTD in the hot air stream (cooler input).

c. The cooling water circuit at the TEWAC motors: one RTD in the water inlet and one RTD in water outlet.

d. Bearings: one RTD for each bearing. Instead of RTD's, thermocouples may be provided. The temperature monitoring devices of the bearings shall be installed as close as possible to the heat generating surfaces and shall be located preferably in the bottom half of the bearing housing.

6.3.2 The three-lead RTD's shall be platinum Pt 100 (100 Ohm at 0ºC).

6.3.3 The thermocouples (if used) shall be chromel-constantan (E) type. 6.3.4 The preferable solution is to provide adequate two-wire transducers (for RTD's,

thermocouples, etc.) with output 4-20 mA. The transducers shall be mounted into appropriate motor terminal boxes. Electrical connections of the transducers shall be made on terminal blocks conveniently located for external wiring. For motors with great vibration, the transducers may be installed in a box mounted outside of the motor.

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6.3.5 In the lubrication oil circuit of the large motors, where the oil circuit is external to the

motor, at least the following shall be provided:

a. One oil pressure gauge (downstream of the oil filter).

b. One oil flow gauge.

c. One RTD in the cold oil stream (oil output).

6.3.6 At Weather-Protected Type II (WPII) motors, a differential pressure detector shall be located across the filters provided on air intakes. The detector shall close its contact upon pressure drip such as might be due to a

clogged filter. The detector shall be sealed against dirt. 6.3.7 At TEAAC motor at least the following additional monitoring devices shall be

provided: a. One air flow gauge b. One air pressure gauge.

6.3.8 At TEWAC motor at least the following additional monitoring devices shall be

provided: a. Water flow meter in the water supply line with high and low flow alarm contact. b. Water pressure gauge. c. Leak detector switch with alarm contact.

6.3.9 Provisions shall be made for installation of vibration detector/s (e.g. proximity

probe/s) in agreement with the drive equipment manufacturer. 6.3.10 Rated operational current of the monitoring devices electrical contacts (if any) shall

be defined in the Project Specification.

6.4 Anti-Condensation Space Heaters 6.4.1 Anti-condensation heaters single-phase 230 V, 50 Hz or three-phase 400V, 50 Hz

shall be provided in all the motors. The space heaters shall have sufficient capacity to keep the motor windings and internal parts dry when the motor is not running.

6.4.2 The space heaters and their connections shall be protected against accidental

contact with the personnel, but shall be accessible for service and replaceable in the field.

6.4.3 Flame retardant insulated wires shall be used for the space heater connections.

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6.5 Terminal Boxes 6.5.1 The terminal leads of the motor windings, of the heaters and of the monitoring

devices shall be connected to terminals in separate terminal boxes (one for each of the lead groups indicated above). Each terminal box shall have a corresponding mark or an indication of the purpose.

6.5.2 If an overvoltage protection with surge suppressors has to be provided, it should be

housed in a special separate box, adjacent to the main terminal box of the motor. 6.5.3 The terminal boxes shall be largely sized, with sufficient space for easy connection

or removal of the incoming cables during test of the motor or of the cables.

6.5.4 The direction of the cable entrance in the terminal boxes, especially for the main terminal box, shall be adjustable in the field and changeable at a later date. 6.5.5 Terminal boxes shall be of the type and size to accommodate termination of the

cables specified in the Project Specification. 6.5.6 The main terminal box of the motor shall withstand internal short-circuits of a defined

level (thermal current for a certain time interval and dynamic current). The short-circuit level required will be indicated in the Project Specification. Pressure relief devices, as bursting disks, may be provided in the terminal box in order to protect it and the operating personnel in case of internal short-circuit. The bursting disks shall be properly located and/or covered by protective covers that shall direct or diffuse the exhaust gases in a safe manner and additionally shall guard the disks against being struck by inadvertence.

6.5.7 All the terminal boxes shall have an environmental protection equivalent with IP55.

6.5.8 The holes in the terminal boxes for cable entrance shall be hermetically sealed for shipment.

6.5.9 Motor main or accessor leads that pass outside the motor enclosure shall be

gasketed seals and protected against mechanical damage.

6.6 Miscellaneous 6.6.1 The motors shall have two earth terminals: one inside the main terminal box for

connecting a conductive cable shield and a second earth terminal fitted on the frame. The size of the earth terminals shall allow the connection of the following ground conductors (cooper):

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a. Earth terminal inside the main terminal box (for shield grounding):

- If the phase terminals are for 300 mm2 conductors or smaller: 25 mm

2

- if the phase terminals are for conductors larger than 300 mm2: 35 mm

2

b. Earth terminal on the frame, according to the short-circuit level indicated in the

Project Specification:

- for IK3" ≤ 40kA: 95 mm2

- for IK3" = 50kA: 120 mm2

where IK3" – initial symmetrical three-phase short-circuit current.

6.6.2 Corrosion-withstanding materials, suitable for the ambient conditions indicated in

Chapter 4 of this Standard Specification or in the Project Specification, shall be used for al

the components susceptible of corrosion. 6.6.3 The motor nameplate shall include the total weight of the motor and the weight of the rotor.

The rotor weight, if exceeding 100 Kg, shall also be punched on the end of the rotor shaft.

The motor serial number, indicated on the nameplate, shall additionally be punched on the enclosure.

The direction of rotation for the normal supply voltage sequence shall be indicated on the motor.

7 TESTS AND TOLERANCES 7.1 The following type tests shall be performed:

7.1.1 For the motors designed according to the Project Specification requirements:

a. Measurement of locked-rotor torque and current.

b. Determination of speed-torque curve.

c. Determination of speed-current curve.

d. Temperature test, including bearing temperatures.

e. Measurement of rated-load current and slip.

f. Determination of power factor at 100%, 75% and 50% of rated load.

g. Measurement of segregated losses, if required in the Project Specification.

h. Determination of efficiency at 100%, 75% and 50% of rated load.

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i. Immersion withstand test as covered in NEMA MG1-2003, 20.18. For motors

designed according to IEC Standards, equivalent tests may be accepted by the Israel Electric Corporation Ltd.

j. Measurement of airborne sound.

When duplicate motors are provided, the test may be conducted on one motor only.

7.1.2 For catalogue motors, that have already undergone the above indicated tests, only

the corresponding data and curves shall be supplied. 7.2 The following routine factory tests shall be performed on all motors completely

assembled in the factory:

a. Measurement of winding resistance.

b. Check of direction of rotation versus phase sequence.

c. Measurement of no-load current and losses.

d. Measurement of mechanical vibrations.

e. Measurement of insulation resistance and polarization index. f. Measurement of dielectric dissipation factor ("tan δ").

g. Measurement of "tan δ" with different applied voltages.

h. Measurement of bearing insulation resistance on motors supplied with insulated

bearings.

i. Dielectric tests:

- Power-frequency withstand test according to paragraph 5.7 of this Standard

Specification.

- Lightning impulse withstand test according to paragraph 5.8 of this Standard

Specification (including test of turn-to-turn insulation according to IEEE Standard

522-2004 on individual coil and on completely wound and finished stator.

j. Check and tests of the accessories.

7.3 The following routine factory tests shall be

performed on all motors not completely assembled in the factory:

a. Measurement of winding resistance.

b. Measurement of insulation resistance and polarization index.

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c. Measurement of dielectric dissipation factor ("tan δ").

d. Measurement of "tan δ" with different applied voltages.

e. Dielectric tests:

- Power-frequency withstand test according to paragraph 5.7 of this Standard

Specification.

- Lightning impulse withstand test according to paragraph 5.8 of this Standard

Specification (including test of turn-to-turn insulation according to IEEE Standard

522-2004 on individual coil and on completely wound and finished stator).

f. Check and tests of the accessories.

7.4 The following field tests shall be performed on all motors:

a. Check of direction of rotation versus phase sequence, for motors not completely

assembled in the factory.

b. Measurement of no-load current and losses (if the load is or can be easily

uncoupled).

c. Measurement of mechanical vibrations.

d. Measurement of insulation resistance and polarization index.

e. Measurement of bearing insulation resistance on motors supplied with insulated bearings.

f. Check of the accessories.

7.5 Other type and routine tests required by the manufacturer's standard shall also be performed. The Bidder shall include with the Proposal a complete list of tests.

7.6 The following list contains the acceptable tolerances relative to the values agreed

upon in the Contract:

a. Efficiency:

- Total losses: +10% of (1-η) where η is the efficiency of the motor.

b. Power factor: -1/6 of (1-cos φ), but only in the range from -0.02 to -0.07, where cos φ is the power factor stipulated in the Contract.

c. Slip at full load and at working temperature: ± 20%

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STANDARD No.

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d. Locked rotor current: + 20%

e. Locked rotor torque: from -15% to +25% When tolerance is stated in one direction only, the value is not limited in the other direction. Non-stated tolerances may be agreed in the Contract. The locked rotor current tolerances do not apply to the requirement of paragraph 5.5 of this Standard Specification

8 SPECIAL REQUIREMENTS FOR MOTOR SELECTION 8.1 The service factor of the motors meeting the provisions of the American Standards

ANSI, IEEE and NEMA shall be equal to 1.0 (one). 8.2 The motors shall be selected in order to be capable of starting, accelerating and bringing the rated load of the driven equipment to the rated speed, at rated

frequency, provided the voltage at the motor terminals is not less than 80% of the motor rated voltage. The limit of 85% (instead of 80%) may be specified in the Project Specification or may be accepted by the Israel Electric Corporation Ltd., if the voltage drop in the supply path during the motor start can be correspondingly limited.

8.3 The motors with continuous running duty shall be selected in order to withstand either of the following start sequences: a. Three successive starts with the motor initially at the ambient temperature.

b. Two successive starts with the motor initially at the full load operating temperature.

The motors will revert to rest between starts, without intentional cooling interval. The starts are supposed to be with the full load torque and inertia moment of the driven equipment, at rated frequency and with the minimum start voltage at the motor terminals indicated above.

8.4 The margin between the start current-time curve and the thermal limit curve of the

motor shall be sufficient to allow adequate over-current protection in the whole range from zero to rated speed.

8.5 The Contractor shall provide a computer simulation in order to check the starting

capability of motors driving high inertia loads.

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9. MOTOR TECHNICAL DATA AND DOCUMENTATION

9.1 The Contractor shall supply all the technical data required for selecting/checking the motor in connection with its functions, mounting and maintaining it and designing the motor supply (including start conditions, bus transfer, short-circuit contribution and protection of the motor and of the supply path).

9.2 In the Proposal stage, the Contractor shall fill in and submit the Data Sheet of the motor (s) according to the Annexure 2 attached.

9.3 In the Contract stage, the Contractor shall update and complete all the required data in the High Voltage Motor Data Sheet.

9.4 The Summary of Data (Annexure 3 attached) shall be filled in and submitted to the

Purchaser, according to the schedule defined during the Contract stage.

9.5 The Instruction Manuals shall be submitted to the Purchaser according to the schedule defined during the Contract stage.

The Instruction Manuals shall include at least the following:

a. Identification data of the Project and motor(s).

b. Instructions for storage, installation, operation and maintenance of the motor(s).

c. Electrical and mechanical drawings of the motor (s).

d. Test reports.

e. Spare parts list.

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10 REFERENCES 10.1. IEC 60034-1(2004) Rotating electrical machines- Part 1: Rating and

performance. 10.2. IEC 60034-5(2000) Rotating electrical machines- Part 5: Degrees of

protection provided by the integral design of rotating electrical machines (IP code) - Classification.

10.3. IEC 60034-6(1991) Rotating electrical machines- Part 6: Methods of

cooling (IC Code). 10.4. IEC 60034-14(2003) Rotating electrical machines- Part 14: Mechanical

vibration of certain machines with shaft heights 56 mm and higher – Measurement, evaluation and limits of vibration severity.

10.5. IEC 60034-15(1995) Rotating electrical machines- Part 15: Impulse voltage

withstand levels of rotating a.c. machines with form-wound stator coils.

10.6. ANSI C50.41-2000 American National Standard for polyphase induction

motors for power generation stations. 10.7. IEEE Std 522

TM- 2004 IEEE Guide for Testing Turn Insulation of Form-Wound

Stator Coils for Alternating-Current Electric Machines. 10.8. NEMA MG-1-2003 NEMA Standard Publication. Motors and generators.

11 ANNEXURES

Cancels:

EPD-11A

Rev.

-

Applicable:

03/2006

Date:

02/2006










Of:

24

Page:

18



STANDARD No.

EPD – A.11A

ANNEXURE 1

Check List concerning data that must be included in the Project Specification

(For the design engineers of Israel Electric Corporation Ltd.)

The following data has to be indicated in the Project Specification (The numbers in the parentheses refer to the appropriate paragraph of this Standard Specification): 1. Rated voltage (5.1). 2. Ambient air temperature conditions for indoor locations. The maximum temperature

indicated shall be not less than +40ºC (4.2). 3. Roof protection against solar radiation provided by Israel Electric Corporation Ltd. or

required by the Contractor for outdoors located motors, if any (4.7). 4. Seismicity of the site (4.3). 5. Other severe ambient conditions (if needed) (4.8) 6. Supply cable number, cross-section and overall diameter (6.5.5). 7. Short-circuit withstand level required for the main terminal box (thermal current

for 1 sec and dynamic current) (6.5.6). 8. Special requirements of high efficiency for large motors which will be operated many

hours per year (if needed), for which a cost comparison is intended, and cost of the no-load losses and load losses. In this case, the measurement of the segregated losses shall be required (5.9).

9. Requirements for surface protection by painting or other procedures and for the sound

level will be in accordance with the approved documents of Israel Electric Corporation Ltd. that have to be attached with the Project Specification (1.3).

10. Acceptance for use the impulse withstand envelope given in Fig. 2 of IEEE Standard.

552-2004 for testing turn-to-turn insulation. This acceptance can be given only based on the expert engineer's advice (5.8, 7.2.i, 7.3.e).

11. Cooling water temperature for TEWAC motors, if any (6.1.2). 12. Rated operational current of the monitoring devices electrical contacts (if any) (6.3.10).

Cancels:

EPD-11A

Rev.

-

Applicable:

03/2006

Date:

02/2006










EPD-A.11A PAGE 19 OF 24 ANNEXURE 2

Voltage Motor Data Sheet-High

Name of Supplier: __________________________ Date (MM/DD/YY):___________________________ Israel Electric Corporation Ltd ID code(s) (by Purchaser):_________________________________________

Insert all data in this column

1. GENERAL

1.1 Specification No……………………………………………...….

1.2 Driven equipment name……………………………………..….

1.3 * Manufacturer…………………………………………………….

1.4 * Manufacturer's catalogue identification number…………….

1.5 Basic standards………………………………………………….

2. AMBIENT AND MOUNTING CONDITIONS

2.1 Ambient air temperature ……..……………(min ºC/ max ºC)

2.2 Secondary cooling water temperature (if applicable) ………………………………………………..(min ºC/ max ºC)

2.3 Outdoor or indoor location…………………...………………..

2.4 Mounting designation…………………………………………..

3. MAIN MOTOR DATA

3.1 Rated voltage ………………………………………………(kV)

3.2 Rated frequency..…………………………………………. (Hz)

3.3 Rated output…………………………………………….....(kW)

3.4 Synchronous / rated speed……………………………....(rpm)

3.5 Rated current………………………………………………...(A)

3.6 * No-load current………………………………………………(A)

3.7 Relative starting current…………………………………. (p.u)

3.8 Percent of rated load………………………………………...... 100% 75% 50%

3.8.1 * Efficiency……………………………………………………(%)

3.8.2 * Power factor……………………………………………….(p.u.)

4. CONSTRUCTIONAL FEATURES

4.1 Frame size………………………………………………….…..

4.2 Duty Type ……………………………………………………….

4.3 Motor enclosure degree of protection (IP)……………..……

4.4 Terminal boxes degree of protection (IP)……………………

4.5 Insulation class / temperature rise……………………………

4.6 Motor cooling method…….. ………………………………….

4.7 Bearing type / lubrication system……………………………..

4.8* Motor / Load moment of inertia GD2 ………………….(kgm

2)

4.9* Total weight of motor………………………………...…….(kg)

5. DOCUMENTS NUMBERS-ATTACHED CURVES Bidder to attach the curves

5.1* Torques(Motor and Load) and Current as function of Speed for 100% and 80% rated voltage:

5.2* Starting Time - Current curves and Thermal capability (running and locked) curves for 100% and 80% rated voltage:

6. The motor fully corresponds with EPD-A.11A Standard requirements ………………………………………….(Yes/No)

If the answer is "No", the Bidder shall attach a memorandum, explaining each exception.

Note: The data marked with (*) may be submitted in the Contract stage.










EPD-A.11A PAGE 20 OF 24 ANNEXURE 3

STANDARD SPECIFICATION

LTAGE MOTORSVO-ELECTRIC HIGH

SUMMARY OF DATA

Name of Supplier: ____________________________________________________________________

Israel Electric Corporation ID code(s) (by Purchaser):______________________________________

Insert all data in this column

1. GENERAL 1.1 Motor supplier code(s) ………………………….… 1.2 Driven equipment name ……………………….…. 1.3 Type of motor………………………………………. 1.4 Manufacturer……………………………………….. 1.5 Manufacturer's catalogue identification number ……. 1.6 Basic standards……………………………………. 2. AMBIENT AND MOUNTING CONDITIONS 2.1 Maximum permissible altitude of

installation…………………………………..……….(m)

2.2 Outdoor (with/without roof protection) or indoor

location………………………………………………

2.3 Ambient air temperature ………..…(min ºC/ max ºC) 2.5 Mounting designation……………………………….. 2.6 Secondary cooling water temperature (if applicable)

………. …………………………….. (min ºC/ max ºC)

3. MAIN MOTOR DATA 3.1 Rated voltage………………………..……………...(kV) 3.2 Rated frequency.,……………………….……….….(Hz) 3.3 Rated output………………………………..………(KW) 3.4 Synchronous /rated speed…………………..(rpm/rpm) 3.5 Rated current…………………………………………(A) 3.6 No-load current………………………………………(A) 3.7 Locked rotor current/rated current (ratio)……… (p.u.)










EPD-A.11A PAGE 21 OF 24

Name of Supplier: ____________________________________________________________________


Insert all data in this column 3.8 Percent of rated load……………………………………. 100% 75% 50% Efficiency……………………………………………...(%) Power Factor…………………………………..…...(p.u.) 3.9 Permissible voltage variations during normal

operation:

- Continuous……………………………………… (+/-%) - Short-time drop (during start of other motors)…..(%) 3.10 Locked rotor torque (at rated voltage): - At rated voltage………………………………....(kg.m) - At 80% of rated voltage……………………...…(kg.m) 3.11 Tested insulation levels: - Power frequency withstand level…………..(KV rms) - Lightning impulse withstand level according to

paragraph 5.8 of EPD-A.11A Standard Specification ………………………………………………..(KV peak)

- Test of turn-to-turn insulation according to IEEE Std. 522-2004 with inputs withstand envelope defined in Fig. Nr 1 or 2…………………………………………..

3.12 Segregated losses: - No-load losses: Core loss………………………………………..(kW) Friction and windage loss……………………..(kW) - Load losses: Stator I

2R loss……………………………….….(kW)

Rotor I2R loss……………………………….…..(kW)

Stray load loss……………………………….….(kW) - Total losses………………………………….….(kW) - Reference temperature…………………….…..(ºC) 4. ATTACHED CURVES – DOCUMENT NUMBERS Bidder to attach the curves 4.1 Torques(Motor and Load) and Current as function of

Speed for 100% and 80% rated voltage:

4.2 Starting Time - Current curves and Thermal capability

(running and locked) curves for 100% and 80% rated voltage:

5. LOAD AND STARTING CONDITIONS 5.1 Continuous load……………………….……(kW or HP) 5.2 Type of load (regarding start) or torque-speed curve.. 5.3 Starting method……………………………………….… 5.4 Motor moment of inertia GD

2 …………..………(kgm

2)

5.5 Load moment of inertia GD

2 (at motor axle)…..(kgm

2)

5.6 Minimum permissible starting voltage at motor

terminals………………………………(% rated voltage)











Name of Supplier: ____________________________________________________________________


Insert all data in this column 5.7 Minimum permissible starting voltage at motor

terminals………………………………(% rated voltage)

5.8 Starting time with full load of driven equipment: - With rated voltage applied……………………....(sec) - With minimum permissible voltage applied …..(sec) 5.9 Permissible number of successive starts without

cooling intervals, at minimum start voltage, with full load torque and inertia moment of the driven equipment :

- With the motor initially at the ambient temperature… - With the motor initially at the rated load operating

temperature……………………………………………..

6. CONSTRUCTIONAL FEATURES 6.1 Frame size ………………………………………………. 6.2 Duty Type …………………………………..……………. 6.3 Phase number and phase connection…………….…… 6.4 Motor enclosure degree of protection…………………. 6.5 Motor enclosure material …………………..…………… 6.6 Motor enclosure paint type …………………….………. 6.7 Size of the grounding earth terminal provided on the

motor frame…………………………………………..…..

6.8 Stator coil type …………………………………………… 6.9 Document number of the description of the stator

windings insulation system (materials and procedure description)……………………………………………….

6.10 Is the motor able to pass the conformance test (type

test) regarding the "sealed windings" acc. to NEMA Standard MG1-2003,20.18?......................... (Yes/No)

6.11 Thermal class of the stator windings insulation /

thermal class corresponding to the max. temperature rise of stator windings……………………………………

6.12 Material of rotor squirrel-cage bars……………………. 6.13 Number and type of bearings…………………………… 6.14 Motor cooling method…………………………………….











Name of Supplier: ____________________________________________________________________


Insert all data in this column 6.15 Type of the heat exchanger ……………………………. 6.16 Are the heat exchanger including filters? (if an weather

protected air cooled open-machine WPII is proposed and accepted by the purchaser)……….………….(Y/N)

6.17 Number and location of insulated bearings (if any)…..

6.18 Bearing lubrication system………………………………

6.19 Temperature monitoring system devices (type and

number) for :

- Stator winding including their location………………………………………..………..

- Primary cooling air: Cold air stream………………………………………… Hot air stream…………………………………………. - Bearings……………………………………………….. - Lubrication oil circuit (if external to the motor):……. 6.20 Provisions for proximity probe (s) installation (Yes/No) 6.21 Number of other monitoring devices: - Lubrication oil circuit

(if external to the motor):……………………………..

- Pressure detector…………………………………….. - Oil flow gauges……………………………………..…. - Differential pressure detectors to check that the

filters at weather-protected WPII motors ( if applicable) are clean…………………………………...

- Other……………………………….. 6.22 Anti-condensation space heaters: - Number and location……………………………..……. - Rated voltage…………………………………..…(V) - Rated power per heater……………………..…..(W) 6.23 Overvoltage protection with surge suppressors

provided on the motor (details)………………………..

6.24 Degree of protection of the Terminal Boxes……….… 6.25 Maximum number of cables and their maximum size

permissible for the main terminal box:

- Number…………………………………………………. - Cross-section……………………………………(mm

2)

- Inlet overall diameter………………………….…(mm) 6.26 Size of the grounding earth terminal provided in the

main terminal box………………………………………..











Name of Supplier: ____________________________________________________________________


Insert all data in this column 6.27 Short-circuit level of the main terminal box: - Thermal 1 sec current……………………….(kA rms) - Dynamic current……………………………..(kA peak) 6.28 Direction of rotation seen from the driving end

(clockwise, counter-clockwise)………………………….

6.29 Coupling drive: - Type…………………………………………………….. - Axial and radial forces………………………….…..(N) 6.30 Flange type…………………………………….…………. 6.31 Sound pressure level……………………………..[db(A)] 7. TESTS 7.1 Document number included the list of type tests of

the motor …………………………………………………

7.2 Document number included the list of routine tests of

the motor …………………………………………………

8. OVERALL DIMENSIONS AND WEIGHT 8.1 Axial height…………………………………………….(m) 8.2 Total length of stator…………………………..… . (mm) 8.3 Total length of rotor axle…………………….……(mm) 8.4 Total width…………………………………….…….(mm) 8.5 Total height…………………………………………(mm) 8.6 Total weight of motor………………………….…….(kg) 8.7 Weight of rotor………………………………….……(kg)

Documents

DOCUMENT: Electrical Standard Specification SUBJECT ... no CM707/9559 - CM-707... · 6.1 Enclosure and bearings 7 6.2 Windings and insulation 8 6.3 Monitoring provisions 9 6.4 Anti-Condensation