A 242 KVA transformer has a primary winding resistance of 0.6 0 and a secondary winding resistance of 0.001 0. The iron loss is 5.5 kW and the primary and secondary voltages are 5 kv and 285 V respectively. If the power factor of the load is 0.85,then determine the efficiency of the transformer on 75 % load. 11 12 Pc Efficiency

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A 242 kVA transformer has a primary winding resistance of 0.6 Q and a secondary winding resistance of 0.001 Q. The iron loss is 5.5 kW and the
primary and secondary voltages are 5 kV and 285 V respectively. If the power factor of the load is 0.85,then determine the efficiency of the
transformer on 75 % load.
12
Pc
Efficiency
Transcribed Image Text:A 242 kVA transformer has a primary winding resistance of 0.6 Q and a secondary winding resistance of 0.001 Q. The iron loss is 5.5 kW and the primary and secondary voltages are 5 kV and 285 V respectively. If the power factor of the load is 0.85,then determine the efficiency of the transformer on 75 % load. 12 Pc Efficiency
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