DGVCL Exam Paper (11-12-2011) Reactance relay is used to protect against Both phase and earth faults Earth faults only Over voltage faults Phase faults only Both phase and earth faults Earth faults only Over voltage faults Phase faults only ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) It is difficult interrupt a capacitive current because It has a leading power factor Stored energy in the capacitor is very high The restriking voltage can be high Current magnitude is very small It has a leading power factor Stored energy in the capacitor is very high The restriking voltage can be high Current magnitude is very small ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) The transient stability of a power system can be improved by Single pole switching of circuit breakers Phase shifting transformer Excitation control Increasing the turbine valve opening Single pole switching of circuit breakers Phase shifting transformer Excitation control Increasing the turbine valve opening ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) If the dielectric strength of the medium between the contacts builds up more rapidly than the restriking voltage the arc will Restrike Decrease in size Extinguish Increase in size Restrike Decrease in size Extinguish Increase in size ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) First zone distance relay protects the transmission line section upto 80 % of its full length 50 % of its full length Its full length 25 % of its full length 80 % of its full length 50 % of its full length Its full length 25 % of its full length ANSWER DOWNLOAD EXAMIANS APP
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