Power Systems A transmission line has an impedance of (2+j6) Ω has voltage regulation of 10% at a load power factor of 0.8 lag. Find the voltage regulation for a load of 0.6 lead 6.92% -10% -6.92% 10% 6.92% -10% -6.92% 10% ANSWER DOWNLOAD EXAMIANS APP
Power Systems Stability of a transmission line can be increased by shunt reactor shunt capacitor both 1 and 2 series capacitor shunt reactor shunt capacitor both 1 and 2 series capacitor ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the effects of corona interference decreases charging current increases power loss decreases All of these interference decreases charging current increases power loss decreases All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems NTPC (National Thermal Power Cooperation) has its only thermal power generating unit in West Bengal at Bakreshwar. Farakka. Katwa. Durgapur. Bakreshwar. Farakka. Katwa. Durgapur. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Three generators rated 100 MVA, 11 kV have an impedance of 0.15 pu each. If in the same plant, these generators are being replaced by a single equivalent generator, the effective impedance of equivalent generator will be 0.25 pu 0.05 pu 0.45 pu 0.15 pu 0.25 pu 0.05 pu 0.45 pu 0.15 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems To protect the power transformer ( Y-Y with neutral grounded) against fault, which type of connection do the current transformers have? Δ-Y connection Y-Y connection Δ-Δ connection Y-Δ connection Δ-Y connection Y-Y connection Δ-Δ connection Y-Δ connection ANSWER DOWNLOAD EXAMIANS APP
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