Power Systems Keeping in view the cost and overall effectiveness, the following circuit breaker is suited for capacitor bank switching vacuum. air blast. SF6. oil. vacuum. air blast. SF6. oil. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following faults is/are treated as external faults? Failure of excitation All of these Failure of prime mover of the generator Over voltage Failure of excitation All of these Failure of prime mover of the generator Over voltage ANSWER DOWNLOAD EXAMIANS APP
Power Systems Main bus bar protection scheme is /are fault bus protection. differential protection. both fault bus and differential protection. none of these. fault bus protection. differential protection. both fault bus and differential protection. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems When reactance grounding is used in network, the voltage between neutral and ground is IR0 × Xn both 1 and 3 3×IR0 × Xn IN × Xn IR0 × Xn both 1 and 3 3×IR0 × Xn IN × Xn 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
Power Systems In a power system with negligible resistance, the fault current at a point is 8.00 pu. The series reactance is to be included at the fault point to limit the short circuit. current to 5.00 pu is 3.000 pu. 0.075 pu. 0.200 pu. 0.125 pu. 3.000 pu. 0.075 pu. 0.200 pu. 0.125 pu. ANSWER DOWNLOAD EXAMIANS APP
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