Transformers The approximate efficiency of a large transformer is 80% 65% 95% 50% 80% 65% 95% 50% ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer does not posses ______changing property. Impedance Power Current Voltage Impedance Power Current Voltage ANSWER DOWNLOAD EXAMIANS APP
Transformers Open circuit test on transformers is conducted to determine hysteresis losses eddy current losses copper losses core losses hysteresis losses eddy current losses copper losses core losses ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following property is not necessarily desirable in the material for transformer core? High permeability Mechanical strength Low hysteresis loss High thermal conductivity High permeability Mechanical strength Low hysteresis loss High thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer oil must be free from Odour Sludge Moisture Gases Odour Sludge Moisture Gases ANSWER DOWNLOAD EXAMIANS APP
Transformers The leakage flux in a transformer depends upon load current, voltage and frequency load current, voltage, frequency and power factor load current and voltage load current load current, voltage and frequency load current, voltage, frequency and power factor load current and voltage load current ANSWER DOWNLOAD EXAMIANS APP