Transformers What kVA rating is required for a transformer that must handle a maximum load current of 8 A with a secondary voltage of 2 kV? 16 kVA 0.25 kVA 4 kVA 8 kVA 16 kVA 0.25 kVA 4 kVA 8 kVA ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following property is not necessarily desirable in the material for transformer core? High permeability Mechanical strength High thermal conductivity Low hysteresis loss High permeability Mechanical strength High thermal conductivity Low hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum load that a power transformer can carry is limited by its voltage ratio dielectric strength of oil temperature rise copper loss voltage ratio dielectric strength of oil temperature rise copper loss ANSWER DOWNLOAD EXAMIANS APP
Transformers The approximate efficiency of a large transformer is 80% 50% 65% 95% 80% 50% 65% 95% ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer does not posses ______changing property. Current Power Voltage Impedance Current Power Voltage Impedance ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiency of a transformer will be maximum when ______ None of the listed here Leakage reactance of the two winding Resistance of the two winding are equal Copper loss is equal to constant loss None of the listed here Leakage reactance of the two winding Resistance of the two winding are equal Copper loss is equal to constant loss ANSWER DOWNLOAD EXAMIANS APP
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