Power Systems Mho relay is used for protection of none of these. long lines. medium lines. short lines. none of these. long lines. medium lines. short lines. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The area under a flow duration curve represents total power available. total of units of energy available. maximum rate of run-off during the period. total quantity of run-off during that period. total power available. total of units of energy available. maximum rate of run-off during the period. total quantity of run-off during that period. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The surge impedance of a 400 km long overhead transmission line is 420 Ω. For a 200 km length of the same line, the surge impedance will be 400 Ω 840 Ω 420 Ω 210 Ω 400 Ω 840 Ω 420 Ω 210 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems The voltage and current instantaneous values are given as 5 sin (ωt + 30°) pu and 2 sin (ωt - 15°) pu respectively. Find the per unit active power? 7 pu 3.535 pu 5.353 pu 5 pu 7 pu 3.535 pu 5.353 pu 5 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems The function of a surge tank is to supply water at constant pressure. produce surge in the pipeline. none of above. relieve water hammer pressure in the penstock. supply water at constant pressure. produce surge in the pipeline. none of above. relieve water hammer pressure in the penstock. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Steady state stability of a power system is improved by decreasing generator inertia All of these single pole switching using double circuit line instead of single circuit line decreasing generator inertia All of these single pole switching using double circuit line instead of single circuit line ANSWER DOWNLOAD EXAMIANS APP
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