DGVCL Exam Paper (12-06-2016) The following is/are the characteristics of SF₆ circuit breakers: All of these It does not need an auxiliary breaking chamber Short break time of 2 to 2.5 cycles None of these All of these It does not need an auxiliary breaking chamber Short break time of 2 to 2.5 cycles None of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The permissible voltage variation in transmission and distribution system is: ±10% ± 1% ± 25% ± 0.1% ±10% ± 1% ± 25% ± 0.1% ANSWER EXPLANATION DOWNLOAD EXAMIANS APP This answer is as per official key of respective exam.
DGVCL Exam Paper (12-06-2016) For 11 kV line the capacitance per km per phase will be of the order of: 0.1 Farad 0.01 microF 0.01 Farad 1 Farad 0.1 Farad 0.01 microF 0.01 Farad 1 Farad ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The number of cycles in which a high speed circuit breaker can complete its operation is 40 to 50 20 to 30 3 to 8 10 to 18 40 to 50 20 to 30 3 to 8 10 to 18 ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The rating of transformer may be expressed in _____ kW kVAR Horse power kVA kW kVAR Horse power kVA ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Equipment : RatingTransformer : kVAAlternator : kVAMotor : kW/HPBattery : ampere-hour
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? 30 Volts 480 Volts 60 Volts 120 Volts 30 Volts 480 Volts 60 Volts 120 Volts ANSWER EXPLANATION DOWNLOAD EXAMIANS APP For transformer, V2/V1 = N2/N1V2/120 = 50/200V2 = 30 V
EXAMIANS