Transformers The no load ratio of a 50 Hz single phase transformer is 6000/250 V. The maximum flux in the core is 0.06 Wb. What is the number of primary turns? 450 900 210 350 450 900 210 350 ANSWER DOWNLOAD EXAMIANS APP
Transformers In a certain loaded transformer, the secondary voltage is one-fourth the primary voltage. The secondary current is one-fourth the primary current and equal to the primary current one-fourth the primary current four times the primary current equal to the primary current one-fourth the primary current and equal to the primary current one-fourth the primary current four times the primary current equal to the primary current ANSWER DOWNLOAD EXAMIANS APP
Transformers A tap changer is used on a transformer for Adjustment in both primary and secondary Adjustment in primary voltage Adjustments in secondary voltage None of the listed here Adjustment in both primary and secondary Adjustment in primary voltage Adjustments in secondary voltage None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary winding of a power transformer should always be switched fused shorted open switched fused shorted open ANSWER DOWNLOAD EXAMIANS APP
Transformers If a power transformer is operated at very high frequencies, then ______ Primary reactance is too much increased None of the listed here Core losses will be excessive Primary will draw large power Primary reactance is too much increased None of the listed here Core losses will be excessive Primary will draw large power ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following is not a fitting on a transformer? Conservator Commutator Buchholz's relay Breather Conservator Commutator Buchholz's relay Breather ANSWER DOWNLOAD EXAMIANS APP
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