Power Systems Communications lines are treated as any of the above medium transmission lines short transmission lines long transmission lines any of the above medium transmission lines short transmission lines long transmission lines ANSWER DOWNLOAD EXAMIANS APP
Power Systems The most suitable circuit breaker for short line fault without switching resistor is air blast circuit breaker. SF6 breaker. oil circuit breaker. none of these. air blast circuit breaker. SF6 breaker. oil circuit breaker. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems An isolated synchronous generator with transient reactance equal to 0.1 pu on a 100 MVA base is connected to the high voltage bus through a step up transformer of reactance 0.1 pu on a 100 MVA base. The fault level at the bus is 200 MVA 400 MVA 500 MVA 100 MVA 200 MVA 400 MVA 500 MVA 100 MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 1- phase transmission line operating at 30 kV has radius of 1 cm and distance between conductors is 0.5 m. Assume m = δ =1, g = 21 kV/cm and frequency f = 50 Hz. Find the critical disruptive voltage? 34.64 kV/phase 41.075 kV/phase 17.32 kV/phase 82.15 kV/phase 34.64 kV/phase 41.075 kV/phase 17.32 kV/phase 82.15 kV/phase ANSWER DOWNLOAD EXAMIANS APP
Power Systems Reheat cycle in thermal power plant is used to reduce loss of heat. increase thermal efficiency. improve condenser performance. utilize heat of flue gases. reduce loss of heat. increase thermal efficiency. improve condenser performance. utilize heat of flue gases. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Location of a surge tank, in an hydro electric power station is near reservoir. tail race. dam. turbine. reservoir. tail race. dam. turbine. ANSWER DOWNLOAD EXAMIANS APP
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