Power Systems To reduce the radio interference which line is/are transposed? Both power and telecommunication lines None of these either 1 or 2 Power line Both power and telecommunication lines None of these either 1 or 2 Power line ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line is operating under no load has ABCD parameters B = 100∠90° has a phase shift of 0.2 rad, how much shunt reactor is required for compensation of ferranti effect? 15.9 mH 2 H 2 mH 15.9 H 15.9 mH 2 H 2 mH 15.9 H ANSWER DOWNLOAD EXAMIANS APP
Power Systems The neutral of 10 MVA, 11 kV alternator is earthed through a resistance of 5 ohms. The fault ready is set to operate at 0.75 A. The current transformers have a ratio of 1000/5. What is the percentage of the alternator winding is protected? 85% 15% 88.2% 11.8% 85% 15% 88.2% 11.8% ANSWER DOWNLOAD EXAMIANS APP
Power Systems The essential requirement(s) for power plants to be operated as peak load plants are Low capital cost. Capability of quick starts. Quick response to load variation. All of these Low capital cost. Capability of quick starts. Quick response to load variation. All of these 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 0.433∠ 80° 0.725∠ 80° 0.325∠ -100° 0.371∠ -100° 0.433∠ 80° 0.725∠ 80° 0.325∠ -100° 0.371∠ -100° ANSWER DOWNLOAD EXAMIANS APP
Power Systems Keeping in view the cost and overall effectiveness, the following circuit breaker is best suited for capacitor bank switching? SF6 CB. Vacuum CB. Oil CB. Air blast CB. SF6 CB. Vacuum CB. Oil CB. Air blast CB. ANSWER DOWNLOAD EXAMIANS APP
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