Power Systems A transmission line has a surge impedance of 400 Ω is connected with the cable having surge impedance of 40 Ω, a surge magnitude of 100 kV is travelling from the transmission line towards the cable. Find the transmitted voltage? 36. 36 kV 30.6 Kv 18.18 kV 100 kV 36. 36 kV 30.6 Kv 18.18 kV 100 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems A thermal protection switch is used to provide protection against over voltage. temperature. overload. short circuit. over voltage. temperature. overload. short circuit. ANSWER DOWNLOAD EXAMIANS APP
Power Systems What is the function of economiser in steam boilers improving thermal efficiency All of these collect ash particals cooling improving thermal efficiency All of these collect ash particals cooling ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following represents the transmission line positive sequence reactance Xs +2 Xm Xs - Xm 2Xs + Xm Xm - Xs Xs +2 Xm Xs - Xm 2Xs + Xm Xm - Xs ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a thermal power plants, pressure in the working fluid cycle is developed by superheater. condenser. turbine. feed water pump. superheater. condenser. turbine. feed water pump. ANSWER DOWNLOAD EXAMIANS APP
Power Systems To prevent maloperation of deferentially connected relay while energizing a transformer, the relay restraining coil is biased with 7th harmonic current. 5th harmonic current. 3rd harmonic current. 2nd harmonic current. 7th harmonic current. 5th harmonic current. 3rd harmonic current. 2nd harmonic current. ANSWER DOWNLOAD EXAMIANS APP
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