Power Systems For complete protection of 3-phase system from the short circuit faults minimum number of relays required are three two six one three two six one ANSWER DOWNLOAD EXAMIANS APP
Power Systems Two generating stations delivering a powers of P1 = 150 MW, P2 =100 MW and the B coefficients are B11 = 0.005, B22 = 0.002, B12=B21= -0.001. Find the transmission line losses? 85.5 95.5 102.5 105.2 85.5 95.5 102.5 105.2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Maximum power capacity of a transmission line can be increased by increasing voltage level decreasing reactance value either 1 or 2 nether 1 nor 2 increasing voltage level decreasing reactance value either 1 or 2 nether 1 nor 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems What is the preferred type of circuit breaker(CB) to be installed in extra high voltage AC system? Air blast CB Vacuum CB Sulphur hexafluoride CB Bulk oil type CB Air blast CB Vacuum CB Sulphur hexafluoride CB Bulk oil type CB 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
Power Systems Percentage of carbon is highest in lignite coal. bituminous coal. anthracite coal. coal gas. lignite coal. bituminous coal. anthracite coal. coal gas. ANSWER DOWNLOAD EXAMIANS APP
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