Power Systems An over current relay, having a current setting of 125% connected to a supply circuit through a current transformer of ratio 500/5. The plug setting multiplier for a fault current of 5 kA is 2 6 5 8 2 6 5 8 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The charging current of a 400 kV line is more than that of a 220 kV line of the same length? either 1 or 2 True None of these False either 1 or 2 True None of these False ANSWER DOWNLOAD EXAMIANS APP
Power Systems In which of the following configuration power transferability is higher? same in both configuration horizontal configuration None of these triangular configuration same in both configuration horizontal configuration None of these triangular configuration ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following relays are used in protection of medium transmission lines? Mho relays Impedance relays Admittance relays any of the above Mho relays Impedance relays Admittance relays any of the above ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has a surge impedance of 400 Ω is connected with the cable having surge impedance of 40 Ω, a surge magnitude of 100 kV is travelling from the transmission line towards the cable. Find the reflected voltage? -81.82 kV 81.82 kV 18.18 kV -18.18 kV -81.82 kV 81.82 kV 18.18 kV -18.18 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following effects are associated with transmission line corona effect skin effect All of these ferranti effect corona effect skin effect All of these ferranti effect ANSWER DOWNLOAD EXAMIANS APP
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