Power Systems For large plants of capacity for more than 15 MW, what type of cooling is used Air. Liquid. Hydrogen. Water. Air. Liquid. Hydrogen. Water. ANSWER DOWNLOAD EXAMIANS APP
Power Systems As the frequency of the system is increased, the charging MVAR increases None of these remains unaffected decreases increases None of these remains unaffected decreases ANSWER DOWNLOAD EXAMIANS APP
Power Systems Recovery voltage in CB is equal to transient voltage. normal frequency 50 Hz rms voltage. none of these. arcing period voltage. transient voltage. normal frequency 50 Hz rms voltage. none of these. arcing period voltage. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For 132 kV system, the reactance and capacitance up to the location of the CB is 3 Ω and 0.015 μF respectively. The maximum value of RRRV is 9.01 kV / μs. 12.2 kV / μs. 10.01 kV / μs. 2.0 kV / μs. 9.01 kV / μs. 12.2 kV / μs. 10.01 kV / μs. 2.0 kV / μs. ANSWER DOWNLOAD EXAMIANS APP
Power Systems An unloaded generator with a pre-fault voltage 1 pu has the following sequence impedance: Z0 = j 0.15 pu, Z1 = Z2 = j 0.25 pu The neutral is grounded with a reactance of 0.05 pu. The fault current in pu for single line to ground fault is 3.75 pu 7.25 pu 2.5 pu 4.28 pu 3.75 pu 7.25 pu 2.5 pu 4.28 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of following power plants normally operage at high speeds Diesel engine. Hydro electric. Thermal. Petrol engine. Diesel engine. Hydro electric. Thermal. Petrol engine. ANSWER DOWNLOAD EXAMIANS APP
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