Power Systems Which of the following is/are the effects of corona interference decreases All of these charging current increases power loss decreases interference decreases All of these charging current increases power loss decreases ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has a surge impedance of 400 Ω for a length of the line of 200 km. If the length of line is increased to 400 km, then its surge impedance is 400 Ω 800 Ω 200 Ω 0 Ω 400 Ω 800 Ω 200 Ω 0 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems If we increase the spacing between the phase conductors, the line capacitance decreases remains unaffected increases None of these decreases remains unaffected increases None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 25 MVA, 11 kV alternator is supplying full load at a point of 0.75 lagging. Determine the percentage increase in earning capacity when it is operated at improved power factor of 0.96 lagging. 14 %. 56 %. None of above 28 %. 14 %. 56 %. None of above 28 %. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following effects are associated with transmission line skin effect All of these corona effect ferranti effect skin effect All of these corona effect ferranti effect ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following contributes to the Rankine cycle efficiency improvement in a thermal power plant Reheat of steam an intermediate stages. All of these Use of steam for heating of boiler feed water. Use of high pressure. Reheat of steam an intermediate stages. All of these Use of steam for heating of boiler feed water. Use of high pressure. ANSWER DOWNLOAD EXAMIANS APP
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