Power Systems In a biased differential relay the bias is defined as the ratio of number of turns of restraining and operating coil. fault current and operating coil current. fault current and restraining coil current. operating coil current and restraining coil current. number of turns of restraining and operating coil. fault current and operating coil current. fault current and restraining coil current. operating coil current and restraining coil current. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which type of connection is employed for current transformers for the protection of star- delta connected 3-phase transformer? star-star delta-star star-delta delta-delta star-star delta-star star-delta delta-delta ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following material is not used as fuse element? Carbon. Silver. Copper. Aluminium. Carbon. Silver. Copper. Aluminium. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The factor affecting run off are the topography and nature of soil in the catchment area. rain fall pattern, shape and size of catchment area. amount of vegetation and weather condition in the catchment area. all of above. the topography and nature of soil in the catchment area. rain fall pattern, shape and size of catchment area. amount of vegetation and weather condition in the catchment area. all of above. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A string insulator has 4 units. The voltage across the bottom most unit is 33.33% of total voltage. Its string efficiency is 66.66% 33.33% 25% 75% 66.66% 33.33% 25% 75% ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the time of operation of a relay for unity TMS is 10 sec. the time of operation of 0.5 TMS will be _______________ secs. 5. 20. 3. 7. 5. 20. 3. 7. ANSWER DOWNLOAD EXAMIANS APP
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