Power Systems Mho relay is used for protection of short lines. long lines. medium lines. none of these. short lines. long lines. medium lines. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Zero voltage regulation is possible only for leading power factor lagging power factor unity power factor All of these leading power factor lagging power factor unity power factor All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems In an induction relay for a particular current setting the operating time 4 sec. When the time multiplier setting is 0.8 if the time multiplier setting is rest to 1 the operating time is 5. 10. 1. un changed. 5. 10. 1. un changed. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generator has reactances of sub transient (X")= 0.5 pu, transient (X') = 0.8 pu and synchronous reactance (X) = 5 pu. The voltages at these reactances are 1.2 V, 1.1 V and 1 V respectively. Find the corresponding sub transient fault current in pu? 0.2 pu 3.975 pu 1.375 pu 2.4 pu 0.2 pu 3.975 pu 1.375 pu 2.4 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statement is/are true regarding infinite line? It has infinite length It has infinite voltage It maintains the constant voltage both 2 and 3 It has infinite length It has infinite voltage It maintains the constant voltage both 2 and 3 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? Air blast CB. Oil CB. Any of these. Vacuum CB. Air blast CB. Oil CB. Any of these. Vacuum CB. ANSWER DOWNLOAD EXAMIANS APP
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