Power Systems A transmission line is operating under no load has ABCD parameters B = 100∠90° has a phase shift of 0.2 rad, how much shunt reactor is required for compensation of ferranti effect? 2 mH 15.9 mH 2 H 15.9 H 2 mH 15.9 mH 2 H 15.9 H 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. 56 %. None of above 14 %. 28 %. 56 %. None of above 14 %. 28 %. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Sum of the elements of row i equal to shunt admittances connected to bus i. If this summation is zero, indicates there is no None of these shunt admittance mutual coupling both 1 and 2 None of these shunt admittance mutual coupling both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems What is the function of economiser in steam boilers cooling collect ash particals improving thermal efficiency All of these cooling collect ash particals improving thermal efficiency All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Advantages of per unit system is/are No units for any quantity It has units for all quantities Need of transformation ratio All of these No units for any quantity It has units for all quantities Need of transformation ratio All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generating station which has a high investment cost and low operating cost is usually operated as a Minimum load station. Peak load station. None of above. Base load station. Minimum load station. Peak load station. None of above. Base load station. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS