Power Systems For accurate load flow calculations on large power systems, the best method is All of these N-R method Decoupled method G-S method All of these N-R method Decoupled method G-S method ANSWER DOWNLOAD EXAMIANS APP
Power Systems By using guard ring in a transmission line, its string efficiency decrease increase remains unaffected None of these decrease increase remains unaffected None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 50 Hz, 17.32 kV generator is connected to a power system. The system reactance and capacitance per phase are 10 mH and 0.2 mF respectively. What is the maximum voltage across the contacts of the circuit breaker at an instant when it passes through zero? 30.28 kV 28.28 kV 29.28 kV 31.28 kV 30.28 kV 28.28 kV 29.28 kV 31.28 kV 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? 95.5 85.5 105.2 102.5 95.5 85.5 105.2 102.5 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A string insulator has 4 units. The voltage across bottom most unit is 10 kV and its efficiency is 90%. Find the total operating phase voltage? 36 kV 45 kV 40 kV 32 kV 36 kV 45 kV 40 kV 32 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems A hydroelectric power station is commonly found in grasslands. hilly areas. desert areas. swamps. grasslands. hilly areas. desert areas. swamps. ANSWER DOWNLOAD EXAMIANS APP
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