Power Systems Mho relay is used for the protection of medium length lines. short length lines. no length criterion. long transmission lines. medium length lines. short length lines. no length criterion. long transmission lines. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The modern trend in electric power generation none of above. to have large size thermal plant located near coal fields. to have large number of small size thermal plants located at different places. to have large size thermal plants near load centre. none of above. to have large size thermal plant located near coal fields. to have large number of small size thermal plants located at different places. to have large size thermal plants near load centre. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Plug setting of a relay can be altered by varying no. of ampere-turns. none of these. air gap of magnetic path. adjustable back up stop. no. of ampere-turns. none of these. air gap of magnetic path. adjustable back up stop. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If a fault occurs on any feeder, the fault current is much lower than with unsectional bus bar. none of these. much higher than with unsectional bus bar. equal to unsectional bus bar. much lower than with unsectional bus bar. none of these. much higher than with unsectional bus bar. equal to unsectional bus bar. 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 0.725∠ 80° 0.433∠ 80° 0.325∠ -100° 0.371∠ -100° 0.725∠ 80° 0.433∠ 80° 0.325∠ -100° 0.371∠ -100° ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 3-phase, 5 kV, 5 MVA system, what is the base impedance? 50 ohms 5 ohms 500 ohms 0.5 ohm 50 ohms 5 ohms 500 ohms 0.5 ohm ANSWER DOWNLOAD EXAMIANS APP
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