2)

Type test certificates

a) Issuing   Laboratory

b) No.   & Date

carry out type test

as per contract specification

3)

Vector group

Dyn11

4)

Rate power of the transformer

 (temperature-rise measured   by resistance)

a) With   55 deg C temperature rise of winding;

i.                                  ONAN Cooling, KVA

ii.                                ONAF Cooling , KVA

31500

40000

b)  With   60 deg C temperature rise of winding;

i.                                  ONAN Cooling, KVA

ii.                                ONAF Cooling , KVA

34000

44000

c) With   65 deg C temperature rise of winding;

i.                                  ONAN Cooling, KVA

ii.                                ONAF Cooling , KVA

37000

47000

5)

Temperature rise of oil corresponding to the KVA and temperature   rise ratings given in ;

a) i. Item 4a(1)   Deg C

ii. Item 4a(2) Deg C

50

50

b) i.   Item 4b(1) Deg C

ii. Item 4b(2) Deg C

55

55

c) i.   Item 4c(1) Deg C

ii. Item 4c(2) Deg C

60

60

6)

Hottest spot winding temperature rise

corresponding to KVA and t temperature rise

rating given in

a) i.   Item 4a(1) Deg C

ii. Item 4a(2) Deg C

68

68

b) i.   Item 4b(1) Deg C

ii. Item 4b(2) Deg C

73

73

c) i.   Item 4c(1) Deg C

ii. Item 4c(2) Deg C

78

78

7)

Tertiary winding rating,   corresponding to

55 Deg   C temperature-rise of winding

(measured by resistance) where   applicable

a)  ONAN cooling

b)  ONAF cooling

N/A

N/A

8)

Rated voltage of windings

a.                     H.V. Winding

b.                    L.V. Windings

c.                     Tertiary winding(if applicable)

kV

kV

kV

132

11.5

  -

9)

Tapping voltages at all

plus and minus tapings, Volts

Please refer to Tapping Voltage   table attached.

10)

Highest operating voltage for which tappings

 are designed for continuous overvoltage

operation, percent of tapping voltage

percent

+110%

11)

Overvoltage Operation

132kV Winding

145,200

152000

Continuous

152

1.64

68

55

132,000

152000

Continuous

152

1.8

68

55

132,000

145000

Continuous

159

1.72

68

55

118,800

145000

Continuous

159

1.91

68

55

118,800

132000

Continuous

175

1.74

68

55

12)

Maximum Flux density and    operating conditions

at which occurs: Tesla

Frequency, Hz

Voltage HV, Volts

Voltage LV, Volts

Load Current, Amps

1.91

50

145200

11500

159/2008

13)

Design Flux density at rated voltage,

rated current and frequency , Tesla

1.7

14)

Impedance voltage (Principal tap ) on 31.5 MVA base;

a) High voltage-low voltage   Percent

b) Low voltage-tertiary Percent

c) High voltage-tertiary   Percent

10

N/A

N/A

15)

Resistance voltage (principal tap) on 31.5 MVA base;

a) High voltage-low voltage   Percent

b) Low voltage-tertiary Percent

c) High voltage-tertiary   Percent

0.291

N/A

N/A

16)

Reactance voltage (principal tap) on 31.5 MVA base;

a) High voltage-low voltage   Percent

b) Low voltage-tertiary Percent

c) High voltage-tertiary   Percent

9.996

N/A

N/A

17)

Short Circuit impedance referred to the

first winding in the following pairs;

a) At   Principal tap

i) High voltage-low voltage (ohms per phase)

ii) Low voltage-tertiary (ohms per phase)

iii) High voltage-tertiary (ohms per phase)

~55.3

N/A

N/A

2) At   extreme plus tap

i) High voltage-low voltage (ohms per phase)

ii) Low voltage-tertiary (ohms per phase)

iii) High voltage-tertiary (ohms per phase)

~60.8

N/A

N/A

3) At   extreme minus tap

i) High voltage-low voltage (ohms per phase)

ii) Low voltage-tertiary (ohms per phase)

iii) High voltage-tertiary (ohms per phase)

~49.7

N/A

N/A

18)

Zero sequence impedance (principal tap) on 31.5 MVA base;

a) High voltage-low voltage   Percent

b) Low voltage-tertiary Percent

c) High voltage-tertiary   Percent

~8.5

N/A

N/A

19)

Regulation (Principal tap) on 31.5 MVA base

a.                      100% power factor  (percent)

b.                     80% power factor (percent)

c.                      70 % power factor (percent)

~1.2

~8.5

~9.4

20)

Exciting current on 31.5 MVA base

a.                     90% voltage (percent)

b.                    100% voltage (percent)

c.                     105% voltage (percent)

d.                    110% voltage (percent)

e.                     120% voltage (percent)

0.25

0.3

0.43

0.59

4.3

21)

Impulse test voltage;

a.                     HV Winding (KV Peak)

b.                    LV Winding (KV Peak)

c.                     Tertiary Winding (KV Peak)

650

110

NA

22)

Separate source power frequency test voltage;

a.                     HV Winding (KV rms)

b.                    LV Winding (KV rms)

c.                     Tertiary Winding (KV rms)

275

38

NA

23)

Induced over voltage withstand test ( KV rms)

275

24)

Short circuit characteristics at rated voltage;

a) Maximum asymmetrical short circuit current for

which the mechanical bracings are designed and

constructed to withstand without damage frequent

short-circuit faults

i) HV   Winding

ii) LV   Winding

iii) Tertiary Winding

KA Peak

KA Peak

KA Peak

2

40.3

NA

b) Maximum   symmetrical short circuit current for

which transformer  windings   are designed and

constructed to thermally withstand without injury;

i) HV   Winding

1 Sec.

2 Sec.

3 Sec.

4 Sec.

5 Sec.

ii) LV   Winding

1 Sec.

2 Sec.

3 Sec.

4 Sec.

5 Sec.

amps

amps

amps

amps

amps

amps

amps

amps

amps

amps

1124

795

649

562

503

22362

15812

12910

11181

10000

iii) Tertiary winding

1 Sec.

2 Sec.

3 Sec.

4 Sec.

5 Sec.

amps

amps

amps

amps

amps

N/A

N/A

N/A

N/A

N/A

26)

Guarantee Load losses for reference

temperature of 75 ºC   including corresponding

consumption of fan motors

a) At   Principal tap

i) 100%   ONAN rating (KW)

ii) 75%   ONAN rating (KW)

iii) 50%   ONAN rating (KW)

iv) 100%   ONAF rating (KW)

v) 75%   ONAF rating (KW)

vi) 50%   ONAF rating (KW)

93

53

24

150

85

38

b) At   extreme plus  tap

i) 100%   ONAN rating (KW)

ii) 75%   ONAN rating (KW)

iii) 50%   ONAN rating (KW)

iv) 100%   ONAF rating (KW)

v) 75%   ONAF rating (KW)

vi) 50%   ONAF rating (KW)

93

53

24

150

85

38

c) At   extreme minus tap

i) 100%   ONAN rating (KW)

ii) 75%   ONAN rating (KW)

iii) 50%   ONAN rating (KW)

iv) 100%   ONAF rating (KW)

v) 75% ONAF   rating (KW)

vi) 50%   ONAF rating (KW)

118

67

30

190

107

48

27)

Tolerance applicable for

a) Guaranteed no-load losses at   100% voltage Percent

b) Guaranteed load losses at   100% ONAF rating at principal tap Percent

0

0

28)

High Voltage Bushings

a) Rating;

1.                    Voltage (KV)

2.                    Current (Amps)

3.                    Impulse withstand voltage (KV   Peak)

4.                    Power Frequency Withstand   voltage (KV rms )

145

630

650

275

b) Type

BRDLW-145/630

c) Manufacturers

China

d) Catalogue   number (catalogue to be attached with bid)

e) Creepage   Distance (mm)

4500

29)

Low Voltage Bushings

a) Rating;

1. Voltage (KV)

2. Current (Amps)

3.  Impulse withstand voltage   (KV Peak)

4.  Power Frequency   Withstand voltage (KV rms )

20

3000

125

55

b) Type

BDW-20/3000

c) Manufacturers

China

d) Catalogue   number (catalogue to be attached with bid)

e) Creepage   Distance (mm)

480

30)

HV NEUTRAL BUSHINGS

NA

a) Rating;

1.                    Voltage (KV)

2.                    Current (Amps)

3.                    Impulse withstand voltage (KV   Peak)Power

4.                    Frequency Withstand voltage   (KV rms )

NA

NA

NA

NA

c) Manufacturers

NA

d) Catalogue   number (catalogue to be attached with bid)

NA

e) Creepage   Distance (mm)

NA

31)

LV neutral   bushing

a) Rating;

1.                    Voltage (KV)

2.                    Current (Amps)

3.                    Impulse withstand voltage (KV   Peak)

4.                    Power Frequency Withstand   voltage (KV rms )

20

3000

125

55

b) Type

BDW-20/3000

c) Manufacturers

China

d) Catalogue   number (catalogue to be attached with bid)

e) Creepage   Distance (mm)

480

32)

Tertiary bushing

NA

a) Number

NA

b) Rating;

1.                    Voltage (KV)

2.                    Current (Amps)

3.                    Impulse withstand voltage (KV   Peak)

4.                    Power Frequency Withstand   voltage (KV rms )

NA

NA

NA

NA

c) Type

NA

d) Manufacturers

NA

e) Catalogue   number (catalogue to be attached with bid)

NA

f) Creepage   Distance (mm)

NA

33)

High voltage bushing current   transformers

(catalogue to be attached with   the bid)

a) number

b) ratio

c) accuracy class

d) accuracy limit factor

e) rated burden VA

f) short-time thermal current   kA

g) continuous thermal current   kA

h) Dynamic current kA

i) Resistance of the secondary   winding Ohms

j) No. of cores in each bushing   CT

CHINA

1

200/2A

10P

10

10

2

0.2

5

0.27

1

34)

Low voltage bushing current   transformers

(catalogue to be attached with   the bid)

a) number

b) ratio

c) accuracy class

d) accuracy limit factor

e) rated burden VA

f) short-time thermal current   kA

g) continuous thermal current   kA

h) Dynamic current kA

i) Resistance of the secondary   winding Ohms

j) No. of cores in each bushing   CT

CHINA

1

3000/2

10P

10

10

30

3

75

2.78

1

35)

Type of on-load tap changer   (catalogue and data to be supplied with bid)

a. Manufacturers

MR Germany

b. type

VVIII250D/145

c. Rated current (amps)

250

d. Step voltage  (Volts)

1200

e. No. of steps

23

f. Motor Drive

i) Type

ii) Supply  voltage (Volts)

iii) H.P

iv) Insulation level

(voltage to earth)

ED

415/240

1

2

g) Tap changer protective relay

(catalogue to be attached with the bid)

i) Type

ii) Make

iii) Contact rating

RS2001

MR

DC110V/2A

h) Insulation levels

i) voltage to earth kV rms

ii) Impulse test voltage kV peak

iii) One minute power frequency

test voltage(50Hz) kV rms

145

650

275

i) Internal   insulation levels Impulse/

one minute   power frequency test voltage

1. Between   selected and preselected taps(KV peak/KV rms)

2.  Across fine tap windings(KV peak/KV rms)

3. Between   phase of fine tap windings(KV peak/KV rms)

4. Across coars   and fine tap winding, if applicable(KV peak/KV rms)

5. Across   coarse tape windings,   if applicable(KV peak/KV rms)

6. Between   phases of  coarse tap   winding(KV peak/KV rms)

130/30

250/65

650/275

N/A

N/A

N/A

a. Type designation

BWY-804AJ

b. Manufacturers

CHINA

c. Catalogue No.

d. Contact rating between

24V-250V DC   & AC(Amps)

5

37)

Resistance Type Oil Thermometer (catalogues to be

attached with bid)

a. Type designation

BWY-804AJ

b. Manufacturer

CHINA

c. Catalogue No.

d. Contact rating between

24V-250V DC   & AC(Amps)

5

38)

Oil Level Indicator    (catalogues to be

attached with bid)

a. Type designation

UZF2-250

b. Manufacturers

CHINA

c. Catalogue No.

d. Contact rating between

24V-250V DC   & AC(Amps)

2

39(i)

Winding Temperature    Indicator

 (catalogue to be attached local)    

a. Type

BWR-04J

b.   Manufacturers

CHINA

c. Catalogue   No.

   d. Contract rating between   24V-250V DC & AC(Amps)

5

39(ii)

Winding Temperature    Indicator

 (catalogue to be attached)  

a. Type   designation

XMZ-10

b.   Manufacturers

CHINA

    c. Catalogue No.

d. Contact   rating between

24V-250V DC & AC(Amps)

5

40)

Buchholz Relay   (catalogues to   be attached) Loacl

a. Type designation

QJ4-80

b. Manufacturer

CHINA

c. Catalogue No.

d. Contact rating between(Amps)(Amps)

5