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