Power Systems Which of the following decides the insulation level of 400 kV, EHV line? switching over voltage lighting voltage skin effect radio interference switching over voltage lighting voltage skin effect radio interference ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the load is short circuited, then reflection coefficient of voltage is -1 -2 0 1 -1 -2 0 1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 1-phase transmission line has an impedance (3+4j) Ω . Find the power factor of the load for achieving maximum and zero voltage regulation? 0.6 lag and 0.6 lead 0.6 lag and 0.8 lead 0.8 lag and 0.8 lead 0.8 lag and 0.6 lead 0.6 lag and 0.6 lead 0.6 lag and 0.8 lead 0.8 lag and 0.8 lead 0.8 lag and 0.6 lead ANSWER DOWNLOAD EXAMIANS APP
Power Systems Oxide film arrestor has which of the following properties? Installed at points of transmission line where daily visit is difficult. Both A and B. It is expensive. Does not require daily charging. Installed at points of transmission line where daily visit is difficult. Both A and B. It is expensive. Does not require daily charging. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Bonding is done at the both ends of the cable to reduce the None of these copper loss iron loss sheath loss None of these copper loss iron loss sheath loss ANSWER DOWNLOAD EXAMIANS APP
Power Systems Frequencies must be same in which of the following line to exchange the power from one place to other place ? Asynchronous line both 1 and 2 No need of same frequency for exchange of power Synchronous line Asynchronous line both 1 and 2 No need of same frequency for exchange of power Synchronous line ANSWER DOWNLOAD EXAMIANS APP
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