Power Systems Buchholz relay is used for protection of none of these. bus bar. alternator. transformer. none of these. bus bar. alternator. transformer. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following methods is/are used for reactive or voltage compensation generation excitation control shunt capacitor series capacitor All of these generation excitation control shunt capacitor series capacitor All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Transmission lines are transposed to reduce ferranti effect skin effect interference with neighbouring communication lines proximity effect ferranti effect skin effect interference with neighbouring communication lines proximity effect ANSWER DOWNLOAD EXAMIANS APP
Power Systems The positive, negative and zero sequence impedances of a transmission line are 0.5,0.5 and 1.1 pu respectively. The self (Zs) and mutual (Zm) impedances of the line will be given by Zs = 0.7 pu, Zm =0.2 pu Zs = 0.5 pu, Zm =0.6 pu Zs = 0.2 pu, Zm =0.7 pu Zs = 0.6 pu, Zm =0.5 pu Zs = 0.7 pu, Zm =0.2 pu Zs = 0.5 pu, Zm =0.6 pu Zs = 0.2 pu, Zm =0.7 pu Zs = 0.6 pu, Zm =0.5 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems What are the tests performed for oil-filled and gas-filled cables ? Load cycle tests. Thermal stability test. All of these. Impulse tests. Load cycle tests. Thermal stability test. All of these. Impulse tests. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has impedance of (0.005 + j0.05) pu. Find the line at which maximum value of negative DC off set current is produced, if it is applied with Vm cosωt? 9.68 1.47 msec 2.63 msec 4.68 msec 9.68 1.47 msec 2.63 msec 4.68 msec ANSWER DOWNLOAD EXAMIANS APP
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