Power Systems A transmission line has impedance of (0.005 + j0.05) pu. Find the line at which maximum value of negative DC off set current is produced, if it is applied with Vm sinωt? 9.68 msec 2.63 msec 1.47 msec 4.68 msec 9.68 msec 2.63 msec 1.47 msec 4.68 msec ANSWER DOWNLOAD EXAMIANS APP
Power Systems The use of high speed circuit breakers improves system stability. increased the short circuit current. reduces the short circuit current. decrease system stability. improves system stability. increased the short circuit current. reduces the short circuit current. decrease system stability. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 20 MVA generator has inertia constant of 0.5 pu. Find new value for 50 MVA base? 0.4 pu 0.2 pu 0.1 pu 0.5 pu 0.4 pu 0.2 pu 0.1 pu 0.5 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Frequencies must be same in which of the following line to exchange the power from one place to other place ? Asynchronous line No need of same frequency for exchange of power both 1 and 2 Synchronous line Asynchronous line No need of same frequency for exchange of power both 1 and 2 Synchronous line ANSWER DOWNLOAD EXAMIANS APP
Power Systems ACSR means Aluminium conductor steel reinforced all conductor steel reinforced Aluminium copper steel reinforced Aluminium core steel reinforced Aluminium conductor steel reinforced all conductor steel reinforced Aluminium copper steel reinforced Aluminium core steel reinforced ANSWER DOWNLOAD EXAMIANS APP
Power Systems Suspension type insulators are used for voltage beyond 440 V 230 V 33 kV 11 kV 440 V 230 V 33 kV 11 kV ANSWER DOWNLOAD EXAMIANS APP
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