Power Systems If the frequency is increased, then skin effect will any of the above increases remains unaffected decreases any of the above increases remains unaffected decreases ANSWER DOWNLOAD EXAMIANS APP
Power Systems Mho relays are used for the protection of which of the following lines? None of these medium transmission lines only long transmission lines only short transmission lines only None of these medium transmission lines only long transmission lines only short transmission lines only ANSWER DOWNLOAD EXAMIANS APP
Power Systems Apart from the skin effect the non uniformity of the current distribution is also caused by bundled conductors proximity effect ferranti effect All of these bundled conductors proximity effect ferranti effect All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Demand factor of a plant is 1 less than 1 0 greater than 1 1 less than 1 0 greater than 1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following represents the transmission line positive sequence reactance Xs - Xm Xm - Xs 2Xs + Xm Xs +2 Xm Xs - Xm Xm - Xs 2Xs + Xm Xs +2 Xm ANSWER DOWNLOAD EXAMIANS APP
Power Systems Consider a three phase, 50 Hz, 11 kV distribution system. Each of the conductors is suspended by an insulator string having two identical porcelain insulators. The self capacitance of the insulators is 5 times the shunt capacitance between the link and ground. Find the voltage across the two insulators V1 and V2? (V1 = Voltage of disc nearest to the conductor) V1 = 3.46 kV and V2 = 2.89 kV V1 = 5 kV and V2 = 6 kV V1 = 2.89 kV and V2 = 3.46 kV V1 = 6 kV and V2 = 5 kV V1 = 3.46 kV and V2 = 2.89 kV V1 = 5 kV and V2 = 6 kV V1 = 2.89 kV and V2 = 3.46 kV V1 = 6 kV and V2 = 5 kV ANSWER DOWNLOAD EXAMIANS APP
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