DGVCL Exam Paper (12-06-2016) Directional relays are based on flow of Current Voltage Power All of these Current Voltage Power All of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) A certain transformer has 200 turns in the primary winding, 50 turns in the secondary winding and 120 volts applied to the primary. What is the voltage across the secondary? 60 Volts 480 Volts 30 Volts 120 Volts 60 Volts 480 Volts 30 Volts 120 Volts ANSWER EXPLANATION DOWNLOAD EXAMIANS APP For transformer, V2/V1 = N2/N1V2/120 = 50/200V2 = 30 V
DGVCL Exam Paper (12-06-2016) Earthing switch is used for? Discharging residual energies Protection of equipment from ground faults Measuring of safety voltage All of these Discharging residual energies Protection of equipment from ground faults Measuring of safety voltage All of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) True value has been 50 whereas measured value is 40 then the percentage error in the reading will be _____ 0.3 0.2 0.5 0.4 0.3 0.2 0.5 0.4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP %error = 100 * (actual - measured )/ actual
DGVCL Exam Paper (12-06-2016) The following formula is correct: All of these Diversity factor = 1/Coincidence Factor Diversity factor = 1 x Coincidence Factor Diversity factor = 1 - Coincidence Factor All of these Diversity factor = 1/Coincidence Factor Diversity factor = 1 x Coincidence Factor Diversity factor = 1 - Coincidence Factor ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Reactance relay is used for protection against: None of these Phase fault Earth fault Over voltage fault None of these Phase fault Earth fault Over voltage fault ANSWER DOWNLOAD EXAMIANS APP
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