Power Systems The pu parameters for a 500 MVA machine on its own base are: Inertia, H = 20 pu; reactance X = 2 pu. The pu values of inertia and reactance on 100 MVA common base, respectively, are 100, 10 4, 0.4 100, 0.4 4, 10 100, 10 4, 0.4 100, 0.4 4, 10 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 0.025 mH/Km 0.1 mH/Km 0.05 mH/Km 0 mH/Km 0.025 mH/Km 0.1 mH/Km 0.05 mH/Km 0 mH/Km ANSWER DOWNLOAD EXAMIANS APP
Power Systems What are the tests performed for oil-filled and gas-filled cables ? All of these. Thermal stability test. Impulse tests. Load cycle tests. All of these. Thermal stability test. Impulse tests. Load cycle tests. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Gas coolled reactor use coolant at pressure of 14-28 Kg/cm2 and at temperature of 700°-800° c. use heavy water as coolant as well as moderator. use CO2. or helium as coolant and graphite the moderator. both B and C. use coolant at pressure of 14-28 Kg/cm2 and at temperature of 700°-800° c. use heavy water as coolant as well as moderator. use CO2. or helium as coolant and graphite the moderator. both B and C. ANSWER DOWNLOAD EXAMIANS APP
Power Systems At slack bus, which one of the following combinations of variables is not specified? P and Q Q and V V and δ P and V P and Q Q and V V and δ P and V ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line is compensated with shunt capacitance Csh. After shunt compensation surge impedance loading will remains unaffected increases None of these decreases remains unaffected increases None of these decreases ANSWER DOWNLOAD EXAMIANS APP
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