Transformers Which motor is preferred for use in mines where explosive gases exist? Induction motor Synchronous motor Air motor Shunt motor Induction motor Synchronous motor Air motor Shunt motor ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum load that a power transformer can carry is limited by its copper loss dielectric strength of oil voltage ratio temperature rise copper loss dielectric strength of oil voltage ratio temperature rise ANSWER DOWNLOAD EXAMIANS APP
Transformers Natural oil cooling is used for transformers up to a rating of 1000 kVA 250 kVA 3000 kVA 500 kVA 1000 kVA 250 kVA 3000 kVA 500 kVA ANSWER DOWNLOAD EXAMIANS APP
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? 210 350 450 900 210 350 450 900 ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer oil must be free from Gases Odour Sludge Moisture Gases Odour Sludge Moisture ANSWER DOWNLOAD EXAMIANS APP
Transformers The leakage flux in a transformer depends upon load current, voltage and frequency load current load current and voltage load current, voltage, frequency and power factor load current, voltage and frequency load current load current and voltage load current, voltage, frequency and power factor ANSWER DOWNLOAD EXAMIANS APP
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