Power Systems Two insulator discs of identical capacitance value C make up a string for a 22 kV, 50 Hz, single phase overhead line insulation system. If pin to earth capacitance is also C, then find the string efficiency? 75% 90% 86%% 50% 75% 90% 86%% 50% ANSWER DOWNLOAD EXAMIANS APP
Power Systems A thermal power station needs space less than that required by hydro-power station of same capacity. less than that required by atomic power station of the same output. less than that required by the diesel power station of same output. less than that required by a gas turbine power plant of same output. less than that required by hydro-power station of same capacity. less than that required by atomic power station of the same output. less than that required by the diesel power station of same output. less than that required by a gas turbine power plant of same output. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The zero sequence current of a generator for line to ground fault is j3 pu. Then the current through the neutral during the fault is j3 pu j1 pu j6 pu j9 pu j3 pu j1 pu j6 pu j9 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems The SWR on a lossless transmission line of the characteristic impedance 100 ohm is 3. The line is the terminated by A resistance of 100 ohm. A resistance of j100/3 ohm. A resistance of j300 ohm. A resistance of 100/3 ohm. A resistance of 100 ohm. A resistance of j100/3 ohm. A resistance of j300 ohm. A resistance of 100/3 ohm. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Find the value of a729, where "a" is the operator α² 0 α 1 α² 0 α 1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Plug setting of a relay can be altered by varying air gap of magnetic path. no. of ampere-turns. adjustable back up stop. none of these. air gap of magnetic path. no. of ampere-turns. adjustable back up stop. none of these. ANSWER DOWNLOAD EXAMIANS APP
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