Power Systems Radio interference occur in telecommunication line due to electro magnetic induction electro static induction both 1 and 2 nether 1 nor 2 electro magnetic induction electro static induction both 1 and 2 nether 1 nor 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Normally Z bus matrix is a sparse matrix unit matrix full matrix null matrix sparse matrix unit matrix full matrix null matrix ANSWER DOWNLOAD EXAMIANS APP
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? 50% 75% 90% 86%% 50% 75% 90% 86%% ANSWER DOWNLOAD EXAMIANS APP
Power Systems A cable has the following characteristics, L = 0.201 µH/m and C = 196.2 pF/m. The velocity of wave propagation through cable is 32 m/s 0.0312 m/s 159.24 m/µs 159.24 m/s 32 m/s 0.0312 m/s 159.24 m/µs 159.24 m/s ANSWER DOWNLOAD EXAMIANS APP
Power Systems Power system network has a total power of 5000 MW at 50 Hz supplying to the different consumers. Frequency is varying at 1.5% per change of 2% load. Assume R =0.004 Hz/MW. Find the steady state frequency deviation if a sudden loss of 200 MW occur due to tripping of one of the transmission line? 0.48 Hz 50 Hz -0.52 Hz 0.52 Hz 0.48 Hz 50 Hz -0.52 Hz 0.52 Hz ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following contributes to the Rankine cycle efficiency improvement in a thermal power plant Reheat of steam an intermediate stages. All of these Use of high pressure. Use of steam for heating of boiler feed water. Reheat of steam an intermediate stages. All of these Use of high pressure. Use of steam for heating of boiler feed water. ANSWER DOWNLOAD EXAMIANS APP
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