Power Systems For 66 kV lines the number of insulator discs of each 11 kV used are 5 6 12 3 5 6 12 3 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is/are true? Corona is reduced by All of these increasing the radius of the conductor decreasing the supply frequency increasing the distance between the conductor All of these increasing the radius of the conductor decreasing the supply frequency increasing the distance between the conductor ANSWER DOWNLOAD EXAMIANS APP
Power Systems The value of off diagonal elements is which is connected between bus i and bus j with positive sign sum of admittances connected at bus j which is connected between bus i and bus j with negative sign sum of admittances connected at bus i which is connected between bus i and bus j with positive sign sum of admittances connected at bus j which is connected between bus i and bus j with negative sign sum of admittances connected at bus i ANSWER DOWNLOAD EXAMIANS APP
Power Systems Advantages of per unit system is/are It has units for all quantities All of these No units for any quantity Need of transformation ratio It has units for all quantities All of these No units for any quantity Need of transformation ratio ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power station has a maximum demand of 15 MW. The plant capacity is 20 MW. Find the reserve capacity of the plant? 5 MW 20 MW 15 MW 10 MW 5 MW 20 MW 15 MW 10 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems The pu parameters for a 500 MVA machine on its own base are: Inertia, H = 20 pu; reactance X = 2 pu. The pu values of inertia and reactance on 100 MVA common base, respectively, are 100, 10 4, 10 100, 0.4 4, 0.4 100, 10 4, 10 100, 0.4 4, 0.4 ANSWER DOWNLOAD EXAMIANS APP
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