Power Systems A three phase, 33 kV oil circuit breaker is rated 1200 A, 2000 MVA, 3 secs. The symmetrical breaking current is 55 kA. 50 kA. 35 kA. 45 kA. 55 kA. 50 kA. 35 kA. 45 kA. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Maximum power transfer capability of transmission line can be increased by Using bundled conductors Using series capacitance Parallel transmission lines All of these Using bundled conductors Using series capacitance Parallel transmission lines All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Specified quantities of load bus are V and δ Q and V P and Q P and δ V and δ Q and V P and Q P and δ ANSWER DOWNLOAD EXAMIANS APP
Power Systems The VSWR of transmission line is Directly proportional to characteristic impedance and inversely to load impedance. Proportional to load and characteristic impedance. Directly proportional to voltage minimum and inversely proportional to voltage maximum. Directly proportional to load impedance and inversely to characteristic impedance. Directly proportional to characteristic impedance and inversely to load impedance. Proportional to load and characteristic impedance. Directly proportional to voltage minimum and inversely proportional to voltage maximum. Directly proportional to load impedance and inversely to characteristic impedance. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the disadvantages of phase modifiers? Initial cost of synchronous phase modifier is higher All of these It requires more maintenance because of running equipment It consumes both active and reactive power Initial cost of synchronous phase modifier is higher All of these It requires more maintenance because of running equipment It consumes both active and reactive power 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. In between the runner exhaust and the tail race. At the beginning of the penstock. In between the penstock and runner. Near the surge tank. In between the runner exhaust and the tail race. At the beginning of the penstock. In between the penstock and runner. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS