HSSPZ-120000/35KV 120MVA EAF TRANSFORMER
Normal Voltage: 36KV 50Hz
Operating Voltage: 33 kV ± 10% 50Hz
Oil Pumps Voltage: 400V 50Hz 3 Phase
Tap-changer Operating Voltage: 115V AC 50Hz
Spacer Heater: 220V AC 50 Hz
Lighting: 220V AC 50 Hz
Protection Contact Voltage: 110V DC
PLC signals
PLC: 24V DC
1.1.2 TRANSFORMER DATA

Operating Voltage: 33 KV± 10%
Frequency: 50Hz± 1%
Rated capacity: 120MVA
Rated primary current: 2008A
Insulation Level (AC/LI): 85/200 kV
Vector group: D/d0 (OPEN)
Secondary connection
Delta open
System short circuit capacity at 33kV side.
1800 MVA
Secondary outlet: Copper Plate Bus bar as arrangement on top of the tank, to fit to existing as to customer provided drawings.
Max. Secondary current: About 74083 A
Secondary voltage range: 1143-549.3 V.
Similar to issued name plate: Current &Voltage &Power for all taps would be clarified after order design.
A) Constant power: 1143V-935V at 120MVA
B) Constant current: About 74083A within 935.2V-549.3V
C) Short-circuit voltage: 8.4% (at 1143V, 120MVA)
12.12% (at 935V, 120MVA)
17.73% (at 549V, 70MVA)
Type of tap changer: On load tap-changer: MIII-600Y/72.5C-12233W
A) Manufacturer: MR,
B) Number of tapes: 21 voltage taps with 23 position as to the name plate drawing by customer.
C) Oil filter equipment for OLTC: Included Type of 100 Oil filter for OLTC.
(MR)