Power Systems An over current relay, having a current setting of 125% connected to a supply circuit through a current transformer of ratio 400/5. The pick up value is 10 A 12.5 A 15 A 6.25 A 10 A 12.5 A 15 A 6.25 A ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 200 MW capacity generator has a speed regulation of 4% for a frequency drop of 0.05 Hz. Find the power input supplied by the turbine for maintaining constant frequency? 10 MW 15 MW 5 MW 20 MW 10 MW 15 MW 5 MW 20 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems The charging reactance of 50 km transmission line is 1500 Ω. What is the charging reactance for 100 km length of line? 750 Ω 1000 Ω 3000 Ω 1500 Ω 750 Ω 1000 Ω 3000 Ω 1500 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Zero voltage regulation is possible only for unity power factor All of these lagging power factor leading power factor unity power factor All of these lagging power factor leading power factor ANSWER DOWNLOAD EXAMIANS APP
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 The charging current of a 400 kV line is more than that of a 220 kV line of the same length? either 1 or 2 None of these True False either 1 or 2 None of these True False ANSWER DOWNLOAD EXAMIANS APP
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