Transformer Nameplate
1
TRANSFORMER SPECIFICATION REFERENCE IS 2026 [PART I, II & IV]-1977 & [PART III] -1981 GUARANTEED MAXIMUM TEMPERATURE RISE OF OIL - 45 ° C, WINDING - 55 ° C WINDING IMPULSE TEST VOLTAGE kV peak POWER FREQUENCY TEST VOLTAGE kV rms VECTOR DIAGRAM HV LV HV LINE 350 140 HV NEUTRAL 95 38 LV 75 28 BUSHING CURRENT TRANSFORMERS CONFORMING TO IS 2705: [PARTS I ~ IV] - 1981 CIRCUIT SECONDARY TERMINALS RATIO VA ACCURACY CLASS A.L.P MINIMUM KNEE POINT VOLTAGE V k [ VOLTS ] MAXIMUM MAGNETIZING CURRENT AT V k [ mA ] MAXIMUM SEC. WINDING RESISTANCE AT 75 ° C [ OHMS ] HV NEUTRAL 1NS1-1NS2 100/1 30 10P 10 250 600 1.0 LV LINE 2VS1-2VS2 473/2 − 3.0 − − − − TYPE SOCR FORM 3NYC kVA HV 9000 TYPE OF COOLING ONAN LV 9000 IMPEDANCE VOLTAGE (9.0 MVA BASE RATED TAP) 9.12 % VOLT (AT NO-LOAD) HV 66000 CONNECTION SYMBOLS YNd1 LV 11000 MASS OF CORE & WINDING kg 9800 AMPERE HV 78.8 MASS OF OIL kg 4500 LV 473 TOTAL MASS kg 20000 NO. OF PHASES 3 MASS OF HEAVIEST PACKAGE kg 16500 FREQUENCY 50 Hz UNTANKING MASS kg 9300 DIAGRAM DRG. NO. TK 204580 UNTANKING HEIGHT mm 4350 MAKER’S SER. NO. 110088-1 VOLUME OF OIL L 5060 YEAR OF MANUFACTURE 1990 HV OFF-CIRCUIT TAP CHANGER TAP SELECTOR CONNECTION POSITION CONNECTION HV LINE TERMINALS VOLT % VOLT AMPERE 1 4-5 107.5 70950 73.3 2 4-6 105.0 69300 75.1 3 3-6 102.5 67650 76.9 4 3-7 100.0 66000 78.8 1NS2 1NS1 1U 1V 2V 1N 2W 2U 1W 3 4 5 6 7 3 4 5 6 7 3 4 5 6 7 1.2 1.2 1.2 2.1 2.1 2.1 2.2 2.2 2.2 2VS1 2VS2 1.1 1.1 1.1
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Transformer Name plate details, Transformer Specificatinos
Transcript of Transformer Nameplate
TRANSFORMER SPECIFICATION REFERENCE
IS 2026 [PART I, II & IV]-1977 & [PART III] -1981
GUARANTEED MAXIMUM TEMPERATURE RISE OF OIL - 45°C, WINDING - 55°C
WINDING IMPULSE TEST
VOLTAGE kV peak POWER FREQUENCY TEST
VOLTAGE kV rms
VECTOR DIAGRAM
HV LV
HV LINE 350 140
HV NEUTRAL 95 38
LV 75 28
BUSHING CURRENT TRANSFORMERS CONFORMING TO IS 2705: [PARTS I ~ IV] - 1981
CIRCUIT SECONDARY TERMINALS
RATIO VA ACCURACY
CLASS A.L.P
MINIMUM KNEE POINT
VOLTAGE Vk
[ VOLTS ]
MAXIMUM MAGNETIZING
CURRENT AT Vk [ mA ]
MAXIMUM SEC. WINDING RESISTANCE
AT 75°C
[ OHMS ]
HV NEUTRAL
1NS1-1NS2 100/1 30 10P 10 250 600 1.0
LV LINE 2VS1-2VS2 473/2 − 3.0 − − − −
TYPE SOCR FORM 3NYC
kVA HV 9000 TYPE OF COOLING ONAN
LV 9000 IMPEDANCE VOLTAGE (9.0 MVA BASE RATED TAP)
9.12 %
VOLT (AT NO-LOAD)
HV 66000 CONNECTION SYMBOLS YNd1
LV 11000 MASS OF CORE & WINDING kg 9800
AMPERE HV 78.8 MASS OF OIL kg 4500
LV 473 TOTAL MASS kg 20000
NO. OF PHASES 3 MASS OF HEAVIEST PACKAGE kg 16500
FREQUENCY 50 Hz UNTANKING MASS kg 9300
DIAGRAM DRG. NO. TK 204580 UNTANKING HEIGHT mm 4350
MAKER’S SER. NO. 110088-1 VOLUME OF OIL L 5060
YEAR OF MANUFACTURE 1990
HV OFF-CIRCUIT TAP CHANGER TAP SELECTOR CONNECTION
POSITION CONNECTION HV LINE TERMINALS
VOLT % VOLT AMPERE
1 4-5 107.5 70950 73.3
2 4-6 105.0 69300 75.1
3 3-6 102.5 67650 76.9
4 3-7 100.0 66000 78.8
1NS21NS1
1U
1V 2V
1N
2W
2U
1W
3
45
67
3
4
5
67
3
4
567
1.2
1.2
1.2
2.1
2.1
2.12.2
2.2
2.2
2VS12VS2
1.1
1.1
1.1
