A single phase, 60 Hz transformer is rated at 156 kVA, the primary voltage V1 = 2,391V, the secondary voltage V2 = 264 V

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A Single Phase 60 Hz Transformer Is Rated At 156 Kva The Primary Voltage V1 2 391v The Secondary Voltage V2 264 V 1 (165.74 KiB) Viewed 47 times

A single phase, 60 Hz transformer is rated at 156 kVA, the primary voltage V1 = 2,391V, the secondary voltage V2 = 264 V. The results from the Open Circuit and Short Circuit tests are as follows: Open Circuit test (is conducted on the LV side of the transformer with the HV side open): Voc = 264 V, Ioc = 16 A, Poc = 651 Watts = Short Circuit test is conducted on HV side with LV side short circuited): Vsc = 80 V, ISC VSC = rated HV current is established, Psc = 1,574 Watts = Find the efficiency in % of the above transformer at 8 % load and unity power factor. Input your answer with 2 decimal accuracy