Power Systems Find the number of insulator discs required in string insulator, if operating voltage is 220 kV and maximum voltage of each disc is 11 kV? 10 21 20 13 10 21 20 13 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The pickup value of relay is 6.5 Amp and fault current in relay coil is 39 Amp. Its plug setting multiplier is 7 A. 10 A. 6 A. 8 A. 7 A. 10 A. 6 A. 8 A. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Incremental cost of two generators Ic1 = 0.2 P1+60, Ic2 = 0.3 P2+40 and the ratings of the generator are 150 and 250 MW. Find the load sharing of each generator for a load of 200 MW? P1 = 80 MW, P2 = 120 MW P1 = 100 MW, P2 = 100 MW P1 = 120 MW, P2 = 80 MW P1 = 60 MW, P2 = 140 MW P1 = 80 MW, P2 = 120 MW P1 = 100 MW, P2 = 100 MW P1 = 120 MW, P2 = 80 MW P1 = 60 MW, P2 = 140 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems Main bus bar protection scheme is /are both fault bus and differential protection. fault bus protection. none of these. differential protection. both fault bus and differential protection. fault bus protection. none of these. differential protection. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following power stations is mainly used to cover peak load on the system? 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 gas based thermal power plant ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a thermal power plant, which of its following components needs maximum maintenance attention Super heater. Steam turbine. Condenser. Boiler. Super heater. Steam turbine. Condenser. Boiler. ANSWER DOWNLOAD EXAMIANS APP