DGVCL Exam Paper (12-06-2016) For cost & safety, the outdoor substations are installed for voltages above: 60 kV 11 kV 33 kV 110 kV 60 kV 11 kV 33 kV 110 kV ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) In India _____ supply is 415 V supply through 4-wires. None of these Two-phase Three - phase Single - phase None of these Two-phase Three - phase Single - phase ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) In a transformer the energy is conveyed from primary to secondary Through cooling coil None of these Through air By the flux Through cooling coil None of these Through air By the flux ANSWER EXPLANATION DOWNLOAD EXAMIANS APP function of transfomer is that transfer electrical energy from primary cicuit to secondary through magnetic cicuit by mutual induction
DGVCL Exam Paper (12-06-2016) The following is a Transmission Company: MGVCL DGVCL GETCO GERC MGVCL DGVCL GETCO GERC ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) What would happen if a power transformer designed for operation on 50 Hz (frequency) were connected to a 500 Hz (frequency) source of the same voltage: Eddy Current and Hysteresis losses will be excessive No effect Current will be too much high Transformer may start to smoke and burn Eddy Current and Hysteresis losses will be excessive No effect Current will be too much high Transformer may start to smoke and burn ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Core loss of transformer = Hysteresis loss + eddy current lossHysteresis loss prpotional to feddy current loss prpotional to f².
DGVCL Exam Paper (12-06-2016) The time of closing the cycle, in modern circuit breakers is 0.01 sec. 0.1 sec. 0.003 sec. 0.001 sec. 0.01 sec. 0.1 sec. 0.003 sec. 0.001 sec. ANSWER DOWNLOAD EXAMIANS APP
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