Power Systems A transmission line has impedance of (0.005 + j0.05) pu. Find the line at which maximum value of negative DC off set current is produced, if it is applied with Vm sinωt? 4.68 msec 1.47 msec 9.68 msec 2.63 msec 4.68 msec 1.47 msec 9.68 msec 2.63 msec ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a power system with negligible resistance, the fault current at a point is 8.00 pu. The series reactance is to be included at the fault point to limit the short circuit. current to 5.00 pu is 3.000 pu. 0.075 pu. 0.125 pu. 0.200 pu. 3.000 pu. 0.075 pu. 0.125 pu. 0.200 pu. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the desirable properties of a insulator material? Low ratio of puncture strength to flash over. Both 1 and 2 High relative permittivity High ratio of puncture strength to flash over. Low ratio of puncture strength to flash over. Both 1 and 2 High relative permittivity High ratio of puncture strength to flash over. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of following statement are false Nuclear power plants are used as peak load plants only. In nuclear power plants, chain reaction is controlled by cadmium rods. A thermal reactor needs a moderator material. In a nuclear reactor, multiplication factor is kept almost equal to one. Nuclear power plants are used as peak load plants only. In nuclear power plants, chain reaction is controlled by cadmium rods. A thermal reactor needs a moderator material. In a nuclear reactor, multiplication factor is kept almost equal to one. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which cooling is preferred for large turbine generator Nitrogen cooling. None of these. Oxygen cooling. Hydrogen cooling. Nitrogen cooling. None of these. Oxygen cooling. Hydrogen cooling. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following matrix is used for load flow studies? Unit matrix Z bus matrix Y bus matrix null matrix Unit matrix Z bus matrix Y bus matrix null matrix ANSWER DOWNLOAD EXAMIANS APP
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