Transformers The transformer that should never the secondary open circuited when primary is energised is _______ Power transformer Current transformer Voltage transformer Auto transformer Power transformer Current transformer Voltage transformer Auto transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer is an efficient device because Uses inductive coupling Uses electric coupling Uses capacitive coupling A static device Uses inductive coupling Uses electric coupling Uses capacitive coupling A static device ANSWER DOWNLOAD EXAMIANS APP
Transformers Noise level test in a transformer is a special test None of these routine test type test special test None of these routine test type test ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following is not a part of transformer installation? Exciter Buchholz relay Conservator Breather Exciter Buchholz relay Conservator Breather ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer has a 1:6 turns ratio and a secondary coil load resistance of 470 . The load resistance as seen by the source is 78 Ω 1.3 Ω 13 Ω 7.8 Ω 78 Ω 1.3 Ω 13 Ω 7.8 Ω ANSWER DOWNLOAD EXAMIANS APP
Transformers In a step-down transformer, there is a change of 15 A in the load current. This results in change of supply current of 15 A less than 15 A None of these more than 15 A 15 A less than 15 A None of these more than 15 A ANSWER DOWNLOAD EXAMIANS APP
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