Power Systems In a short circuit test circuit breaker, time to reach the peak re-striking voltage 60 microsecond & the peak re-striking voltage 120 kV. Determine average RRRV (Rate of rise re-striking voltage)? 2 × 106 kV / sec. 3 × 106 kV / sec. 3.5 × 106 kV / sec. 1 × 106 kV / sec. 2 × 106 kV / sec. 3 × 106 kV / sec. 3.5 × 106 kV / sec. 1 × 106 kV / sec. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The angular moment of 10 MVA generator is 0.2. Find the new value of angular moment for 20 MVA base? 0.4 pu 0.25 pu 0.2 pu 0.1 pu 0.4 pu 0.25 pu 0.2 pu 0.1 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems In which power plant, the thermal efficiency is quite low Nuclear power plant. Hydro power plant. Diesel power plant. Steam power plant. Nuclear power plant. Hydro power plant. Diesel power plant. Steam power plant. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In thermal power stations, economiser will both 2 and 3 reduce the heat increase the thermal efficiency reduce the thermal efficiency both 2 and 3 reduce the heat increase the thermal efficiency reduce the thermal efficiency ANSWER DOWNLOAD EXAMIANS APP
Power Systems In hydroelectric power plants both operating and initial cost are high. operating cost is low and initial cost is high. both operating and initial cost are low. operating cost is high and initial cost is low. both operating and initial cost are high. operating cost is low and initial cost is high. both operating and initial cost are low. operating cost is high and initial cost is low. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If we increase the length of the transmission line, the charging current None of these decreases remains unaffected increases None of these decreases remains unaffected increases ANSWER DOWNLOAD EXAMIANS APP
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