Power Systems Keeping in view the cost and overall effectiveness, the following circuit breaker is best suited for capacitor bank switching? Air blast CB. SF6 CB. Vacuum CB. Oil CB. Air blast CB. SF6 CB. Vacuum CB. Oil CB. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A thermal protection relay provides protection against what? Temperature Short circuit Over load any of the above Temperature Short circuit Over load any of the above ANSWER DOWNLOAD EXAMIANS APP
Power Systems Sparse matrix is matrix which contain more number of non zeros more number of zeros more number of memory elements less number of memory elements more number of non zeros more number of zeros more number of memory elements less number of memory elements ANSWER DOWNLOAD EXAMIANS APP
Power Systems Normally Z bus matrix is a unit matrix full matrix null matrix sparse matrix unit matrix full matrix null matrix sparse matrix ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a short circuit test circuit breaker, time to reach the peak re-striking voltage 60 microsecond & the peak re-striking voltage 120 kV. Determine average RRRV (Rate of rise re-striking voltage)? 3 × 106 kV / sec. 1 × 106 kV / sec. 3.5 × 106 kV / sec. 2 × 106 kV / sec. 3 × 106 kV / sec. 1 × 106 kV / sec. 3.5 × 106 kV / sec. 2 × 106 kV / sec. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A guard ring is used in string type insulator having 3 units to improve string efficiency. Find the capacitance of metal link 2 if pin to earth capacitance of each unit is 1 F? 4 F 2 F 0.5 F 1 F 4 F 2 F 0.5 F 1 F ANSWER DOWNLOAD EXAMIANS APP
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