Power Systems A transmission line has impedance of (0.005 + j0.05) pu. Find the line at which maximum value of negative DC off set current is produced, if it is applied with Vm cosωt? 4.68 msec 2.63 msec 1.47 msec 9.68 4.68 msec 2.63 msec 1.47 msec 9.68 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power system consists of 300 buses out of which 20 buses are generator buses, 25 buses are the ones with reactive power support buses and 15 buses are ones with fixed shunt capacitors. All the other buses are load buses. It is proposed to perform a load flow analysis for the system using Newton-Raphson Jacobian matrix is 554×554 555×555 553×553 540×540 554×554 555×555 553×553 540×540 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following insulator is practically used for railway crossings? All of these string insulator pin insulator strain insulator All of these string insulator pin insulator strain insulator ANSWER DOWNLOAD EXAMIANS APP
Power Systems A three phase, 33 kV oil circuit breaker is rated 1200 A, 2000 MVA, 3 secs. The symmetrical breaking current is 50 kA. 35 kA. 55 kA. 45 kA. 50 kA. 35 kA. 55 kA. 45 kA. 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 25 Ω 250 Ω 500 Ω 1000 Ω 25 Ω 250 Ω 500 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Specified quantities of load bus are Q and V P and δ P and Q V and δ Q and V P and δ P and Q V and δ ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS