Power Systems A transmission line is operating under no load has ABCD parameters B = 100∠90° has a phase shift of 0.2 rad, how much shunt reactor is required for compensation of ferranti effect? 15.9 H 2 mH 15.9 mH 2 H 15.9 H 2 mH 15.9 mH 2 H ANSWER DOWNLOAD EXAMIANS APP
Power Systems Consider a long, two wire line composed of solid round conductors. The radius of both conductors is 0.25 cm and distance between their centers is 100 cm. If this distance is doubled, then the inductance per unit length. Doubled. Increase but does not doubled. Halves. Decrease but does not halves. Doubled. Increase but does not doubled. Halves. Decrease but does not halves. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Telecommunication lines are transposed to reduce the efficiency All of these radio interference in communication lines voltage level efficiency All of these radio interference in communication lines voltage level ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a regenerative cycle, feed water is heated by heaters. drained steam from turbine. all of above. exhaust gas. heaters. drained steam from turbine. all of above. exhaust gas. 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% 90% 86%% 75% 50% 90% 86%% 75% ANSWER DOWNLOAD EXAMIANS APP
Power Systems A hydraulic turbine having rated speed of 250 rpm is connected to a synchronous generator. In order to produce power at 50 Hz, the numbers of pole are required in the generator 6. 24. 16. 12. 6. 24. 16. 12. ANSWER DOWNLOAD EXAMIANS APP
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