Power Systems Lightning arresters are used for protection of equipment from short circuits All of these protection of equipment from external lightning protection of equipment from open circuits protection of equipment from short circuits All of these protection of equipment from external lightning protection of equipment from open circuits ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the desirable properties of a insulator material? Both 1 and 2 High ratio of puncture strength to flash over. Low ratio of puncture strength to flash over. High relative permittivity Both 1 and 2 High ratio of puncture strength to flash over. Low ratio of puncture strength to flash over. High relative permittivity ANSWER DOWNLOAD EXAMIANS APP
Power Systems Normally Z bus matrix is a sparse matrix full matrix null matrix unit matrix sparse matrix full matrix null matrix unit matrix ANSWER DOWNLOAD EXAMIANS APP
Power Systems The total number of strands(N) is concentrically stranded cable with total annular space filled with strands of uniform diameter is given by (if x is number of layers) N = 3x²-3x+1 N = 3x²+3x+1 N = 3x²-2x+1 N = 3x²-6x+1 N = 3x²-3x+1 N = 3x²+3x+1 N = 3x²-2x+1 N = 3x²-6x+1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Ferranti effect will not occur in which of the following transmission lines All of these short transmission lines long transmission lines medium transmission lines All of these short transmission lines long transmission lines medium transmission lines ANSWER DOWNLOAD EXAMIANS APP
Power Systems For some given transmission line the expression for voltage regulation is given by (Vs - Vr)/Vr *100%. Hence, this may either be a medium line or short line this must be a short line this expression is true for any line None of these this may either be a medium line or short line this must be a short line this expression is true for any line None of these ANSWER DOWNLOAD EXAMIANS APP
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