Power Systems Frequencies must be same in which of the following line to exchange the power from one place to other place ? both 1 and 2 Asynchronous line No need of same frequency for exchange of power Synchronous line both 1 and 2 Asynchronous line No need of same frequency for exchange of power Synchronous line ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following relays is/are unit protection relays? Differential relays over current relays both 1 and 2 Buccholz relays Differential relays over current relays both 1 and 2 Buccholz relays ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3 core cable gives on test a capacitance of 3.7 µF between two cores. Find the line charging current of the cable when it is connected to 11 kV, 50 Hz system? 1 A. 1.476 A. 14.7 mA. 14.76 A. 1 A. 1.476 A. 14.7 mA. 14.76 A. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The rate of rise of re-striking voltage is dependent upon both 1 and 2 inductance of the system only capacitance of the system only resistance of the system only both 1 and 2 inductance of the system only capacitance of the system only resistance of the system only ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following plants has the maximum eapital cost Steam plants. Nuclear plants. Diesel plants. Hydro-plants. Steam plants. Nuclear plants. Diesel plants. Hydro-plants. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A hydro electric generating station is supplied from a reservoir of capacity 5 × 10 − 6 cubic meters at a head of 200 meters. Find the total energy available in KWh if the overall efficiency is 75 % 2.044 × 106 kWh. 3 × 106 kWh. 5 × 106 kWh. 4.06 × 106 kWh. 2.044 × 106 kWh. 3 × 106 kWh. 5 × 106 kWh. 4.06 × 106 kWh. ANSWER DOWNLOAD EXAMIANS APP
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