Power Systems In which of the following given faults, all the sequence currents are equal? LLL LLG LL LG LLL LLG LL LG ANSWER DOWNLOAD EXAMIANS APP
Power Systems The water from a catchment is 60*106 cu m annually and hydro station has head of 40 m. Assuming ideal generator and turbine, the power that can be theoretically generated is 250 kW 750 kW 500 kW 300 kW 250 kW 750 kW 500 kW 300 kW ANSWER DOWNLOAD EXAMIANS APP
Power Systems A pin type insulator has 100 kV puncture voltage. If 10 kV flash over voltage occurred in a transmission line, then find the safety factor of insulator? 10 1000 0.001 0.1 10 1000 0.001 0.1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The specific speed ( NS ) of turbine is given by P√( N ) / H3/2. none of these. N√( P ) / H2/3. N√( P ) / H1.25. P√( N ) / H3/2. none of these. N√( P ) / H2/3. N√( P ) / H1.25. ANSWER DOWNLOAD EXAMIANS APP
Power Systems What type of back up protection is used for alternators? Impedance relay. Mho relay. IDMT relay. Buchholz relay. Impedance relay. Mho relay. IDMT relay. Buchholz relay. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Proximity effect depends on distance between the conductors relative permeability All of these frequency distance between the conductors relative permeability All of these frequency ANSWER DOWNLOAD EXAMIANS APP