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? -0.92 0.92 -0.56 0.56 -0.92 0.92 -0.56 0.56 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Oxide film arrestor has which of the following properties? Both A and B. Installed at points of transmission line where daily visit is difficult. It is expensive. Does not require daily charging. Both A and B. Installed at points of transmission line where daily visit is difficult. It is expensive. Does not require daily charging. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Where the voltage is high and current to be interrupted is low, Which of following the breaker is preferable? Any of these. Oil CB. Vacuum CB. Air blast CB. Any of these. Oil CB. Vacuum CB. Air blast CB. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A three phase, 33 kV oil circuit breaker is rated 1200 A, the symmetrical breaking capacity is 2000 MVA, 3 secs. Then the making capacity is 5000 MVA. 5200 MVA. 5100 MVA. 5500 MVA. 5000 MVA. 5200 MVA. 5100 MVA. 5500 MVA. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Radio interference occur in telecommunication line due to both 1 and 2 electro magnetic induction electro static induction nether 1 nor 2 both 1 and 2 electro magnetic induction electro static induction nether 1 nor 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Stability of a transmission line can be increased by shunt reactor series capacitor shunt capacitor both 1 and 2 shunt reactor series capacitor shunt capacitor both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
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