Power Systems Find the relation between sub transient (X"), transient (X') and synchronous reactance (X) ? X" < X' < X X" > X' >X X" < X' > X X" > X' < X X" < X' < X X" > X' >X X" < X' > X X" > X' < X ANSWER DOWNLOAD EXAMIANS APP
Power Systems Peterson coil is used in case of transmission line for increase the voltage level compensation of arcing grounds reduce ferranti effect improve power factor increase the voltage level compensation of arcing grounds reduce ferranti effect improve power factor ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 10 MVA generator has reactance of 0.2 pu. Find the new reactance value for 50 MVA base? 1 pu 0.25 pu 0.2 pu 5 pu 1 pu 0.25 pu 0.2 pu 5 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of following materials can be used as coolant Helium. Heavy water. Any of above. CO2. Helium. Heavy water. Any of above. CO2. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Recovery voltage in CB is equal to transient voltage. arcing period voltage. none of these. normal frequency 50 Hz rms voltage. transient voltage. arcing period voltage. none of these. normal frequency 50 Hz rms voltage. ANSWER DOWNLOAD EXAMIANS APP
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)? 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. 2 × 106 kV / sec. 3 × 106 kV / sec. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS