Power Systems The per unit impedance of a circuit element is 0.30. If the base kV and base MVA are halved, then the new value of the per unit impedance of the circuit element will be 0.60 0.0060 0.0030 0.30 0.60 0.0060 0.0030 0.30 ANSWER DOWNLOAD EXAMIANS APP
Power Systems What type of back up protection is used for alternators? IDMT relay. Buchholz relay. Impedance relay. Mho relay. IDMT relay. Buchholz relay. Impedance relay. Mho relay. ANSWER DOWNLOAD EXAMIANS APP
Power Systems At slack bus, which one of the following combinations of variables is not specified? P and Q V and δ Q and V P and V P and Q V and δ Q and V P and V ANSWER DOWNLOAD EXAMIANS APP
Power Systems If L and C are 4 mH and 0.0001 μF respectively a current chop of magnitude 50 Amp would induced a voltage 50 kV. 200 kV. 400 kV. 100 kV. 50 kV. 200 kV. 400 kV. 100 kV. 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. Does not require daily charging. It is expensive. Both A and B. Installed at points of transmission line where daily visit is difficult. Does not require daily charging. It is expensive. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In thermal power plants the size of coal after crushing 20 - 25 mm. 200 - 205 mm. 40 mm. 300 mm. 20 - 25 mm. 200 - 205 mm. 40 mm. 300 mm. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS