1B. A 4 kVA, 200/400 V, 50 Hz, single-phase transformer gave the following test figures: No load (OC) (LV side) Short circuit (SC) (HV side) : 200 V, 0.7 A, 70 W : 15 V, 10 A, 80 W Sketch its equivalent circuit referred to the LV side. Also, find its efficiency and secondary terminal voltage on full load at unity power factor.

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1B.
A 4 kVA, 200/400 V, 50 Hz, single-phase transformer gave the following test figures:
No load (OC) (LV side)
: 200 V, 0.7 A, 70 W
Short circuit (SC) (HV side)
: 15 V, 10 A, 80 W
Sketch its equivalent circuit referred to the LV side. Also, find its efficiency and secondary
terminal voltage on full load at unity power factor.
A 100 kVA 115/23 kV 50 Hz two-winding transformer is connected
2A
(C
Transcribed Image Text:1B. A 4 kVA, 200/400 V, 50 Hz, single-phase transformer gave the following test figures: No load (OC) (LV side) : 200 V, 0.7 A, 70 W Short circuit (SC) (HV side) : 15 V, 10 A, 80 W Sketch its equivalent circuit referred to the LV side. Also, find its efficiency and secondary terminal voltage on full load at unity power factor. A 100 kVA 115/23 kV 50 Hz two-winding transformer is connected 2A (C
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