Power Systems A transmission line is compensated with shunt capacitance Csh. If the uncompensated transmission line surge impedance is Zs, then find the new surge impedance Zn after shunt compensation? Zs/√(1 + Kcsh) √(1 + Kcsh)/Zs Zs*√(1 + Kcsh) All of these Zs/√(1 + Kcsh) √(1 + Kcsh)/Zs Zs*√(1 + Kcsh) All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems An ACSR conductor has a diameter of 2 cm has internal inductance of 0.05 mH/Km. If this ACSR is replaced with another having a diameter of 4 cm then its internal inductance is 0.05 mH/Km 0.025 mH/Km 0.1 mH/Km 0 mH/Km 0.05 mH/Km 0.025 mH/Km 0.1 mH/Km 0 mH/Km ANSWER DOWNLOAD EXAMIANS APP
Power Systems Transmission line has a length of 300 km, operating at sending end voltage Vs = 1 pu, find the receiving end voltage(Vr) at no load? 1.098 pu 0.98 pu 0.098 pu 1 pu 1.098 pu 0.98 pu 0.098 pu 1 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems In relay coil which is used? Power transformer. Instrument transformer. Current transformer. Potential transformer. Power transformer. Instrument transformer. Current transformer. Potential transformer. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the methods of improving transient stability? Dynamic breaking Fast acting excitation control All of these Fast acting governing system Dynamic breaking Fast acting excitation control All of these Fast acting governing system 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 32 kV 45 kV 40 kV 36 kV 32 kV 45 kV 40 kV ANSWER DOWNLOAD EXAMIANS APP
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