DGVCL Exam Paper (11-12-2011) If the voltage at the two ends of a line are 132 kV, and its reactance is 40 Ω, the stability limit of the line is 217.8 MW 435.6 MW 500 MW 251.5 MW 217.8 MW 435.6 MW 500 MW 251.5 MW ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) Which type of back up protection is widely used for the protection of transmission lines? Relay backup Remote backup Breaker backup Control backup Relay backup Remote backup Breaker backup Control backup ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) First zone distance relay protects the transmission line section upto 50 % of its full length 25 % of its full length Its full length 80 % of its full length 50 % of its full length 25 % of its full length Its full length 80 % of its full length ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) If the fault current is 2000 A, the relay plug setting is 50% and the CT ratio is 400/5, the plug setting multiple will be 50 10 25 15 50 10 25 15 ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) The main advantage of using fractional pitch winding is to refuce Harmonics in the generated emf Amount of copper in the winding Cost of the machine Size of the machine Harmonics in the generated emf Amount of copper in the winding Cost of the machine Size of the machine ANSWER EXPLANATION DOWNLOAD EXAMIANS APP due to fractional pitch EMF can be approximately made into sine wavelosses due to harmonics reducedsaving in conductor materialmechanical strength of coil is increased.
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 Increase in size Decrease in size Extinguish Restrike Increase in size Decrease in size Extinguish ANSWER DOWNLOAD EXAMIANS APP
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