Power Systems A three phase, 33 kV oil circuit breaker is rated 1200 A, 2000 MVA, 3 secs. The symmetrical breaking current is 45 kA. 55 kA. 50 kA. 35 kA. 45 kA. 55 kA. 50 kA. 35 kA. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If in a line, resistance and reactance are found to be equal and regulation is zero, then load will have zero power factor 0.707 lagging power factor 0.707 leading power factor unity power factor zero power factor 0.707 lagging power factor 0.707 leading power factor unity power factor ANSWER DOWNLOAD EXAMIANS APP
Power Systems For complete protection of 3-phase system from the short circuit faults minimum number of relays required are one three two six one three two six ANSWER DOWNLOAD EXAMIANS APP
Power Systems The specific speed of water turbine is the speed at which the turbine develops unit horse power at unit head. maximum horse power. a minimum horse power. unit horse power at all heads. unit horse power at unit head. maximum horse power. a minimum horse power. unit horse power at all heads. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Where is the draft tube of a hydroelectric plant that is an airtight pipe located Near the surge tank. At the beginning of the penstock. In between the penstock and runner. In between the runner exhaust and the tail race. Near the surge tank. At the beginning of the penstock. In between the penstock and runner. In between the runner exhaust and the tail race. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the stator faults? over current failure of excitation Inter phase faults All of these over current failure of excitation Inter phase faults All of these ANSWER DOWNLOAD EXAMIANS APP
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