Power Systems A 100 MVA alternator operating at full load at 50 Hz. H = 4 MWsec/MVA, Td = 0.5 sec. One of the transmission line is tripped. So that output of generator is reduced to 70 MW. Find the frequency deviation during this time? 0.56 -0.92 -0.56 0.92 0.56 -0.92 -0.56 0.92 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 1-phase transmission line has an impedance (3+4j) Ω . Find the power factor of the load for achieving maximum and zero voltage regulation? 0.8 lag and 0.8 lead 0.8 lag and 0.6 lead 0.6 lag and 0.6 lead 0.6 lag and 0.8 lead 0.8 lag and 0.8 lead 0.8 lag and 0.6 lead 0.6 lag and 0.6 lead 0.6 lag and 0.8 lead ANSWER DOWNLOAD EXAMIANS APP
Power Systems The rate of rise of re-striking voltage is dependent upon inductance of the system only resistance of the system only both 1 and 2 capacitance of the system only inductance of the system only resistance of the system only both 1 and 2 capacitance of the system only ANSWER DOWNLOAD EXAMIANS APP
Power Systems What is the preferred type of circuit breaker(CB) to be installed in extra high voltage AC system? Vacuum CB Air blast CB Bulk oil type CB Sulphur hexafluoride CB Vacuum CB Air blast CB Bulk oil type CB Sulphur hexafluoride CB ANSWER DOWNLOAD EXAMIANS APP
Power Systems The pickup value of relay is 6.5 Amp and fault current in relay coil is 39 Amp. Its plug setting multiplier is 7 A. 8 A. 6 A. 10 A. 7 A. 8 A. 6 A. 10 A. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Nuclear fission means graphite. moderator. combination of two light nuclei. breaking up of nuclear of heavy atoms into nearly equal parts. graphite. moderator. combination of two light nuclei. breaking up of nuclear of heavy atoms into nearly equal parts. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS