Power Systems The per unit impedance of a circuit element is 0.30. If the base kV and base MVA are halved, then the new value of the per unit impedance of the circuit element will be 0.60 0.0030 0.30 0.0060 0.60 0.0030 0.30 0.0060 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following rotor is used in thermal power plants? salient pole rotor cylindrical rotor squirrel cage rotor either of these salient pole rotor cylindrical rotor squirrel cage rotor either of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a thermal power plants, pressure in the working fluid cycle is developed by condenser. feed water pump. turbine. superheater. condenser. feed water pump. turbine. superheater. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statement is/are true?Zn nether 1 nor 2 The neutral grounding impedance Zn appears as 3Zn in zero sequence equivalent circuit both 1 and 2 The neutral grounding impedance Zn appears as Zn in zero sequence equivalent circuit nether 1 nor 2 The neutral grounding impedance Zn appears as 3Zn in zero sequence equivalent circuit both 1 and 2 The neutral grounding impedance Zn appears as Zn in zero sequence equivalent circuit ANSWER DOWNLOAD EXAMIANS APP
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 The skin effect of conductor will increase when All of these resistivity decrease frequency decrease diameter decrease All of these resistivity decrease frequency decrease diameter decrease ANSWER DOWNLOAD EXAMIANS APP
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