Power Systems A string type insulator has three units with self capacitance C and ground capacitance of 0.2 C having a string efficiency of 76% 82% 78% 80% 76% 82% 78% 80% ANSWER DOWNLOAD EXAMIANS APP
Power Systems Differential relays does not used for which of the following faults? through faults faults within a transformer faults within a generator both 1 and 2 through faults faults within a transformer faults within a generator both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Objectives of power system is/are nether 1 nor 2 Rated voltage and frequency has to be supplied to the consumers both 1 and 2 Cost of electrical energy per KWh is to be minimum nether 1 nor 2 Rated voltage and frequency has to be supplied to the consumers both 1 and 2 Cost of electrical energy per KWh is to be minimum ANSWER DOWNLOAD EXAMIANS APP
Power Systems Breaking current is a ------------------ value? average RMS any of the above maximum average RMS any of the above maximum ANSWER DOWNLOAD EXAMIANS APP
Power Systems When is the ferranti effect on long overhead lines experienced? The line is lightly loaded The line is fully loaded The line is heavily loaded The power factor is unity The line is lightly loaded The line is fully loaded The line is heavily loaded The power factor is unity ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power system network has n nodes, Z33 of its bus impedance matrix is j0.5 pu. The voltage at node 3 is 1.3∠ -10°. If capacitor is having reactance of -j3.5 pu is now added to the network between node 3 and reference node, the current drawn by the capacitor in pu is 0.325∠ -100° 0.433∠ 80° 0.371∠ -100° 0.725∠ 80° 0.325∠ -100° 0.433∠ 80° 0.371∠ -100° 0.725∠ 80° ANSWER DOWNLOAD EXAMIANS APP
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