Power Systems Which of the following decides the insulation level of 400 kV, EHV line? switching over voltage radio interference skin effect lighting voltage switching over voltage radio interference skin effect lighting voltage ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following power stations is mainly used to cover peak load on the system? nuclear plant gas based thermal power plant coal based thermal power plant pumped storage hydro power plant nuclear plant gas based thermal power plant coal based thermal power plant pumped storage hydro power plant ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power system network has n nodes, Z33 of its bus impedance matrix is j0.5 pu. The voltage at node 3 is 1.3∠ -10°. If capacitor is having reactance of -j3.5 pu is now added to the network between node 3 and reference node, the current drawn by the capacitor in pu is 0.371∠ -100° 0.433∠ 80° 0.725∠ 80° 0.325∠ -100° 0.371∠ -100° 0.433∠ 80° 0.725∠ 80° 0.325∠ -100° ANSWER DOWNLOAD EXAMIANS APP
Power Systems Critical visual voltage is the voltage at which None of these corona is just initiated both 1 and 2 corona is visible with blue or violet colour None of these corona is just initiated both 1 and 2 corona is visible with blue or violet colour ANSWER DOWNLOAD EXAMIANS APP
Power Systems Maximum efficiency of modern coal fired steam raising thermal power plants is restricted to about 035 (a low value), mainly because of high energy loss in boiler. high energy loss from turbine exhaust to condenser. low alternative efficiency. low steam turbine mechanical efficiency. high energy loss in boiler. high energy loss from turbine exhaust to condenser. low alternative efficiency. low steam turbine mechanical efficiency. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Mho relay is used for protection of short lines. none of these. medium lines. long lines. short lines. none of these. medium lines. long lines. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS