Power Systems The insulation resistance of the 20 km long underground cable is 8 MΩ. Other things being same, the insulation resistance of 10 km long cable will be 4 MΩ 16 MΩ 32 MΩ 8 MΩ 4 MΩ 16 MΩ 32 MΩ 8 MΩ 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? 18.18 kV -81.82 kV 81.82 kV -18.18 kV 18.18 kV -81.82 kV 81.82 kV -18.18 kV ANSWER DOWNLOAD EXAMIANS APP
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 5 2 8 6 5 2 8 6 ANSWER DOWNLOAD EXAMIANS APP
Power Systems In coal fired thermal power stations, what are the electrostatic precipitators used for? To collect the dust particles from the flue gases All of these To keep the air heaters clean To remove dust particles setting on the bus bar conductors in the station switch yard To collect the dust particles from the flue gases All of these To keep the air heaters clean To remove dust particles setting on the bus bar conductors in the station switch yard ANSWER DOWNLOAD EXAMIANS APP
Power Systems Length of short transmission line is up to 40 km 150 km any of the above 80 km 40 km 150 km any of the above 80 km ANSWER DOWNLOAD EXAMIANS APP
Power Systems Hydro-graph is similar to load curve. energy load curve. both B and C. mass curve. load curve. energy load curve. both B and C. mass curve. ANSWER DOWNLOAD EXAMIANS APP
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