Power Systems In relay coil which is used? Current transformer. Potential transformer. Power transformer. Instrument transformer. Current transformer. Potential transformer. Power transformer. Instrument transformer. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A cable has the following characteristics, L = 0.201 µH/m and C = 196.2 pF/m. The velocity of wave propagation through cable is 0.0312 m/s 159.24 m/s 32 m/s 159.24 m/µs 0.0312 m/s 159.24 m/s 32 m/s 159.24 m/µs 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 1.144∠90° A/phase 0.512∠90° A/phase 0.344∠90° A/phase 0.144∠90° A/phase 1.144∠90° A/phase 0.512∠90° A/phase 0.344∠90° A/phase ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following methods is/are used for reactive or voltage compensation shunt capacitor series capacitor All of these generation excitation control shunt capacitor series capacitor All of these generation excitation control ANSWER DOWNLOAD EXAMIANS APP
Power Systems Length of the cable is doubled, its capacitance C will be doubled. unchanged. one-half. one-fourth. doubled. unchanged. one-half. one-fourth. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 1-phase transmission line has an impedance (4 + 3j ) Ω. Find the power factor of the load for zero voltage regulation? 0.6 lead 0.8 lag 0.6 lag 0.8 lead 0.6 lead 0.8 lag 0.6 lag 0.8 lead ANSWER DOWNLOAD EXAMIANS APP
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