Power Systems A transmission line has self and mutual impedances of 0.8 pu and 0.2 pu. Find the positive, negative and zero sequence impedances respectively? 0.6, 0.8 and 1.2 pu 0.8, 0.6 and 1.2 pu 0.6, 0.6 and 1.2 pu 0.8, 0.8 and 1.2 pu 0.6, 0.8 and 1.2 pu 0.8, 0.6 and 1.2 pu 0.6, 0.6 and 1.2 pu 0.8, 0.8 and 1.2 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems If a fault occurs on any feeder, the fault current is much lower than with unsectional bus bar. much higher than with unsectional bus bar. equal to unsectional bus bar. none of these. much lower than with unsectional bus bar. much higher than with unsectional bus bar. equal to unsectional bus bar. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If we increase the length of the transmission line, the charging current remains unaffected increases None of these decreases remains unaffected increases None of these decreases ANSWER DOWNLOAD EXAMIANS APP
Power Systems What are the tests performed for oil-filled and gas-filled cables ? Thermal stability test. Load cycle tests. All of these. Impulse tests. Thermal stability test. Load cycle tests. All of these. Impulse tests. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which turbine is ideally suited to pumped storage plants Pelton. Francis. Impeller. Kaplan. Pelton. Francis. Impeller. Kaplan. ANSWER DOWNLOAD EXAMIANS APP
Power Systems An impulse turbine makes use of a draft tube. always operates submerged. operates by initial complete conversion to kinetic energy. is most suited for low head and high discharge power plants. makes use of a draft tube. always operates submerged. operates by initial complete conversion to kinetic energy. is most suited for low head and high discharge power plants. ANSWER DOWNLOAD EXAMIANS APP
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