Transformers A transformer oil must be free from Moisture Sludge Odour Gases Moisture Sludge Odour Gases ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer with a 110 V primary has a 15:1 turns ratio. The load resistance, RL, is 120 . What is the approximate voltage across the load? 73 V 88 V 880 V 7.3 V 73 V 88 V 880 V 7.3 V ANSWER DOWNLOAD EXAMIANS APP
Transformers The leakage flux in a transformer depends upon load current, voltage and frequency load current and voltage load current, voltage, frequency and power factor load current load current, voltage and frequency load current and voltage load current, voltage, frequency and power factor load current ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following property is not necessarily desirable in the material for transformer core? High thermal conductivity Low hysteresis loss Mechanical strength High permeability High thermal conductivity Low hysteresis loss Mechanical strength High permeability ANSWER DOWNLOAD EXAMIANS APP
Transformers What is the approximate efficiency of large transformers? 75% 85% 65% 95 % 75% 85% 65% 95 % ANSWER DOWNLOAD EXAMIANS APP
Transformers The no load primary current is about ______of full load primary current. 15-30% 3-5% Above 40% 30-40% 15-30% 3-5% Above 40% 30-40% ANSWER DOWNLOAD EXAMIANS APP
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