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ONE (1) 42/56/70 MVA GENERAL ELECTRIC SUBSTATION TRANSFORMER, 3 PHASE, 60 HZ,
CLASS OA/FA/FOA, 55 DEG. C RISE, IMPEDANCE CHART BELOW
WINDING KVA RATING:
COOLING H X Y Z
OA 55 C 42 MVA 18 MVA 12 MVA 12 MVA
FA 55 C 56 MVA 24 MVA 16 MVA 16 MVA
FOA 55 C 70 MVA 30 MVA 20 MVA 20 MVA
HIGH VOLTAGE: 24000 DELTA BIL: 150 KV
LOW VOLTAGE X: 6900Y/3984 BIL: 95 KV
LOW VOLTAGE Y: 4160Y/2402 BIL: 75 KV
LOW VOLTAGE Z: 4160Y/2402 BIL: 75 KV
TAPS: 24600-24000-23400-22800-22220
IMPEDANCE:
7.84% - 24000-6900 VOLTS AT 18 MVA H-X
9.33% - 24000-4160 VOLTS AT 12 MVA H-Y
9.28% - 24000-4160 VOLTS AT 12 MVA H-Z
17.36% - 6900-4160 VOLTS AT 12 MVA X-Y
17.26% - 6900-4160 VOLTS AT 12 MVA X-Z
17.40% - 4160-4160 VOLTS AT 12 MVA Y-Z