Power Systems Ideal plant load cfactor is 0 1 greater than 1 less than 1 0 1 greater than 1 less than 1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power system network has n nodes, Z33 of its bus impedance matrix is j0.5 pu. The voltage at node 3 is 1.3∠ -10°. If capacitor is having reactance of -j3.5 pu is now added to the network between node 3 and reference node, the current drawn by the capacitor in pu is 0.371∠ -100° 0.433∠ 80° 0.725∠ 80° 0.325∠ -100° 0.371∠ -100° 0.433∠ 80° 0.725∠ 80° 0.325∠ -100° ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 3-phase, 5 kV, 5 MVA system, what is the base impedance? 5 ohms 0.5 ohm 500 ohms 50 ohms 5 ohms 0.5 ohm 500 ohms 50 ohms ANSWER DOWNLOAD EXAMIANS APP
Power Systems The characteristic impedance of a transmission line is Directly proportional to square root of its length. Directly proportional to its length. Inversely proportional to square root of its length. Independent of its length. Directly proportional to square root of its length. Directly proportional to its length. Inversely proportional to square root of its length. Independent of its length. ANSWER DOWNLOAD EXAMIANS APP
Power Systems When is the ferranti effect on long overhead lines experienced? The power factor is unity The line is fully loaded The line is lightly loaded The line is heavily loaded The power factor is unity The line is fully loaded The line is lightly loaded The line is heavily loaded ANSWER DOWNLOAD EXAMIANS APP
Power Systems What is the preferred type of circuit breaker(CB) to be installed in extra high voltage AC system? Sulphur hexafluoride CB Air blast CB Vacuum CB Bulk oil type CB Sulphur hexafluoride CB Air blast CB Vacuum CB Bulk oil type CB ANSWER DOWNLOAD EXAMIANS APP
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