Power Systems When reactance grounding is used in network, the voltage between neutral and ground is IN × Xn both 1 and 3 3×IR0 × Xn IR0 × Xn IN × Xn both 1 and 3 3×IR0 × Xn IR0 × Xn 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 If the breakdown voltage of the insulator is high, the thickness of the insulator is less high None of these it does not related to breakdown voltage less high None of these it does not related to breakdown voltage ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3-phase transmission line operating at Vs = 400 kV and has ABCD parameters A= D = 0.8∠0°, B = 100∠°90 Ω, C = 0.5*10^-6∠90° ℧. Find Charging current under no load? 0.144∠90° A/phase 0.344∠90° A/phase 1.144∠90° A/phase 0.512∠90° A/phase 0.144∠90° A/phase 0.344∠90° A/phase 1.144∠90° A/phase 0.512∠90° A/phase ANSWER DOWNLOAD EXAMIANS APP
Power Systems Stock bridge dampers are used to reduce the tension All of these increase the sag reduce the vibrations at the point of support reduce the tension All of these increase the sag reduce the vibrations at the point of support ANSWER DOWNLOAD EXAMIANS APP
Power Systems The area under a flow duration curve represents maximum rate of run-off during the period. total quantity of run-off during that period. total of units of energy available. total power available. maximum rate of run-off during the period. total quantity of run-off during that period. total of units of energy available. total power available. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS