Power Systems Condition for zero voltage regulation is tanφ = R/X cosφ = R/X tanφ = X/R cosφ = X/R tanφ = R/X cosφ = R/X tanφ = X/R cosφ = X/R ANSWER DOWNLOAD EXAMIANS APP
Power Systems A coal fired steam power station working at a plant factor of 80% has one 500 MW generating unit. If the heat content of coal is 2 kWh/kg, the overall plant efficiency is 40% and a train load of coal is 2000 metric tons, then the number of trains required daily for the plant is 16 6 2 10 16 6 2 10 ANSWER DOWNLOAD EXAMIANS APP
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? 0.8, 0.8 and 1.2 pu 0.6, 0.6 and 1.2 pu 0.8, 0.6 and 1.2 pu 0.6, 0.8 and 1.2 pu 0.8, 0.8 and 1.2 pu 0.6, 0.6 and 1.2 pu 0.8, 0.6 and 1.2 pu 0.6, 0.8 and 1.2 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems The rating of fuse wire is always expressed in kWh. ampere-volts. amperes. ampere-hours. kWh. ampere-volts. amperes. ampere-hours. ANSWER DOWNLOAD EXAMIANS APP
Power Systems As the frequency of the system is increased, the charging MVAR increases None of these decreases remains unaffected increases None of these decreases remains unaffected ANSWER DOWNLOAD EXAMIANS APP
Power Systems A fuse wire of circular cross-section has a radius of 0.8 mm. The wire blows off at an current of 8 Amp. Calculate the radius of wire that will blow off at an current of 1 amp? 0.2 mm. 0.4 mm. 2 mm. 4 mm. 0.2 mm. 0.4 mm. 2 mm. 4 mm. ANSWER DOWNLOAD EXAMIANS APP
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