Power Systems Condition for zero voltage regulation is cosφ = R/X tanφ = X/R cosφ = X/R tanφ = R/X cosφ = R/X tanφ = X/R cosφ = X/R tanφ = R/X ANSWER DOWNLOAD EXAMIANS APP
Power Systems Two generating stations delivering a powers of P1 = 150 MW, P2 =100 MW and the B coefficients are B11 = 0.005, B22 = 0.002, B12=B21= -0.001. Find the transmission line losses? 105.2 85.5 95.5 102.5 105.2 85.5 95.5 102.5 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The main objectives of electrical power transmission is/are both 1 and 2 Transmission system must be more efficient with minimum line losses Voltage regulation of the transmission line must be zero or minimum nether 1 nor 2 both 1 and 2 Transmission system must be more efficient with minimum line losses Voltage regulation of the transmission line must be zero or minimum nether 1 nor 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following plants has the maximum eapital cost Nuclear plants. Hydro-plants. Steam plants. Diesel plants. Nuclear plants. Hydro-plants. Steam plants. Diesel plants. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The ABCD constants of a 3-phase transmission line are A = D = 0.8∠1°, B = 170∠85° Ω , C = 0.002∠90.4° ℧. The sending end voltage is 400 kV. The receiving end voltage under no load condition is 600 kV 400 kV 350 kV 500 kV 600 kV 400 kV 350 kV 500 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Earthing switch is used for measuring of safety voltage All of these protection of equipment from ground faults discharging residual energies measuring of safety voltage All of these protection of equipment from ground faults discharging residual energies ANSWER DOWNLOAD EXAMIANS APP
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