Power Systems The capacitance of an overhead transmission line increases with neither 1 nor 2 increase in height of conductors above ground increase in mutual geometrical mean distance both 1 and 2 neither 1 nor 2 increase in height of conductors above ground increase in mutual geometrical mean distance both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems When reactance grounding is used in network, the voltage between neutral and ground is both 1 and 3 IN × Xn 3×IR0 × Xn IR0 × Xn both 1 and 3 IN × Xn 3×IR0 × Xn IR0 × Xn ANSWER DOWNLOAD EXAMIANS APP
Power Systems The use of high speed circuit breakers improves system stability. decrease system stability. reduces the short circuit current. increased the short circuit current. improves system stability. decrease system stability. reduces the short circuit current. increased the short circuit current. 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 = 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 P1 = 80 MW, P2 = 120 MW P1 = 100 MW, P2 = 100 MW P1 = 120 MW, P2 = 80 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a biased differential relay the bias is defined as the ratio of number of turns of restraining and operating coil. fault current and restraining coil current. operating coil current and restraining coil current. fault current and operating coil current. number of turns of restraining and operating coil. fault current and restraining coil current. operating coil current and restraining coil current. fault current and operating coil current. 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 6 8 5 2 6 8 5 2 ANSWER DOWNLOAD EXAMIANS APP
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