Power Systems A thermal protection switch is used to provide protection against overload. temperature. over voltage. short circuit. overload. temperature. over voltage. short circuit. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Surge impedance loading can be increased by both 1 and 2 increasing of voltage level increasing of capacitance value increasing of inductance value both 1 and 2 increasing of voltage level increasing of capacitance value increasing of inductance value ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has 50 km operating at frequency of 500 Hz. Find the type of the line? long transmission line short transmission line any of the above medium transmission line long transmission line short transmission line any of the above medium transmission line ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 100 MVA alternator operating at full load at 50 Hz. H = 4 MWsec/MVA, Td = 0.5 sec. One of the transmission line is tripped. So that output of generator is reduced to 70 MW. Find the frequency deviation during this time? 0.56 -0.92 -0.56 0.92 0.56 -0.92 -0.56 0.92 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following power stations is mainly used to cover peak load on the system? gas based thermal power plant nuclear plant pumped storage hydro power plant coal based thermal power plant gas based thermal power plant nuclear plant pumped storage hydro power plant coal based thermal power plant ANSWER DOWNLOAD EXAMIANS APP
Power Systems The per unit impedance of a circuit element is 0.30. If the base kV and base MVA are halved, then the new value of the per unit impedance of the circuit element will be 0.0060 0.30 0.0030 0.60 0.0060 0.30 0.0030 0.60 ANSWER DOWNLOAD EXAMIANS APP
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