Power Systems A 1-phase transmission line has an impedance (4 + 3j ) Ω. Find the power factor of the load for zero voltage regulation? 0.8 lag 0.8 lead 0.6 lag 0.6 lead 0.8 lag 0.8 lead 0.6 lag 0.6 lead ANSWER DOWNLOAD EXAMIANS APP
Power Systems For which one of the following types of motors, is the equal area criterion for stability applicable? Three phase induction motor DC series motor Three phase synchronous motor DC shunt motor Three phase induction motor DC series motor Three phase synchronous motor DC shunt motor ANSWER DOWNLOAD EXAMIANS APP
Power Systems Maximum power transfer capability of transmission line can be increased by Using series capacitance Parallel transmission lines Using bundled conductors All of these Using series capacitance Parallel transmission lines Using bundled conductors All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems The voltage regulation of a line at full load 0.8 power factor is 11. A long transmission line under no load conditions, for a good voltage profile needs shunt resistance at receiving end All of these shunt reactor at receiving end shunt capacitor at receiving end shunt resistance at receiving end All of these shunt reactor at receiving end shunt capacitor at receiving end ANSWER DOWNLOAD EXAMIANS APP
Power Systems Positive, negative and zero sequence impedances of line are 2,2 and 5 pu respectively. Find self and mutual impedances respectively? 3 and 1 pu 2 and 5 pu 2 and 2 pu 1 and 3 pu 3 and 1 pu 2 and 5 pu 2 and 2 pu 1 and 3 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 220 kV system, the inductance and capacitance up to the circuit breaker location are 25 mH and 0.025 µF respectively. The value of resistor required to be connected across the breaker contacts which will give no transient oscillations, is 1000 Ω 500 Ω 250 Ω 25 Ω 1000 Ω 500 Ω 250 Ω 25 Ω ANSWER DOWNLOAD EXAMIANS APP
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