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? -0.92 0.56 -0.56 0.92 -0.92 0.56 -0.56 0.92 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generator has reactances of sub transient (X")= 0.5 pu, transient (X') = 0.8 pu and synchronous reactance (X) = 5 pu. The voltages at these reactances are 1.2 V, 1.1 V and 1 V respectively. Find the corresponding sub transient fault current in pu? 1.375 pu 2.4 pu 3.975 pu 0.2 pu 1.375 pu 2.4 pu 3.975 pu 0.2 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Find the propagation constant, if impedance is 10Ω and admittance is 10 ℧? 100 10 1 5 100 10 1 5 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A CANDU reactor uses highly enriched uranium as fuel and water as moderator and coolant. natural uranium as fuel and heavy water as moderator and coolant. enriched uranium as fuel and ordinary water as moderator and cooler. only fertile materials. highly enriched uranium as fuel and water as moderator and coolant. natural uranium as fuel and heavy water as moderator and coolant. enriched uranium as fuel and ordinary water as moderator and cooler. only fertile materials. ANSWER DOWNLOAD EXAMIANS APP
Power Systems What is the correct expression for the electrical power developed by ( 7 / 75 ) × WQHη. ( 0.763 / 75 ) × WQHη. 75 × 0.736 × WQHη. ( 75 / 0.736 ) × WQHη. ( 7 / 75 ) × WQHη. ( 0.763 / 75 ) × WQHη. 75 × 0.736 × WQHη. ( 75 / 0.736 ) × WQHη. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Objectives of power system is/are Rated voltage and frequency has to be supplied to the consumers Cost of electrical energy per KWh is to be minimum both 1 and 2 nether 1 nor 2 Rated voltage and frequency has to be supplied to the consumers Cost of electrical energy per KWh is to be minimum both 1 and 2 nether 1 nor 2 ANSWER DOWNLOAD EXAMIANS APP
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