Power Systems In coal fired thermal power stations, what are the electrostatic precipitators used for? To keep the air heaters clean To remove dust particles setting on the bus bar conductors in the station switch yard All of these To collect the dust particles from the flue gases To keep the air heaters clean To remove dust particles setting on the bus bar conductors in the station switch yard All of these To collect the dust particles from the flue gases ANSWER DOWNLOAD EXAMIANS APP
Power Systems A three phase, 33 kV oil circuit breaker is rated 1200 A, the symmetrical breaking capacity is 2000 MVA, 3 secs. Then the making capacity is 5500 MVA. 5000 MVA. 5200 MVA. 5100 MVA. 5500 MVA. 5000 MVA. 5200 MVA. 5100 MVA. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are advantages of N-R method? Time taken for each iteration is less Applicable for large power system network Number of iterations are less both 1 and 2 Time taken for each iteration is less Applicable for large power system network Number of iterations are less both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Three generators rated 100 MVA, 11 kV have an impedance of 0.15 pu each. If in the same plant, these generators are being replaced by a single equivalent generator, the effective impedance of equivalent generator will be 0.15 pu 0.05 pu 0.45 pu 0.25 pu 0.15 pu 0.05 pu 0.45 pu 0.25 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems The charging current of a 400 kV line is more than that of a 220 kV line of the same length? True None of these either 1 or 2 False True None of these either 1 or 2 False ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is/are true? In case of parallel transmission lines fault current reduces stability increases both 1 and 3 fault current increases fault current reduces stability increases both 1 and 3 fault current increases ANSWER DOWNLOAD EXAMIANS APP
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