Power Systems A 20 MVA generator has inertia constant of 0.5 pu. Find new value for 50 MVA base? 0.2 pu 0.5 pu 0.1 pu 0.4 pu 0.2 pu 0.5 pu 0.1 pu 0.4 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems The line currents of 3-phase supply are: IR = 3 + j 5 A IY =2 + j 2 A IB = -2 - j 1 A The zero sequence current will be 1 + j 4 A 1 + j 2 A 5 + j 7 A -2 - j 1 A 1 + j 4 A 1 + j 2 A 5 + j 7 A -2 - j 1 A ANSWER DOWNLOAD EXAMIANS APP
Power Systems At slack bus, which one of the following combinations of variables is not specified? P and Q P and V V and δ Q and V P and Q P and V V and δ Q and V ANSWER DOWNLOAD EXAMIANS APP
Power Systems Ferranti effect occurs under half load any of the above full load no load half load any of the above full load no load ANSWER DOWNLOAD EXAMIANS APP
Power Systems Surge impedance loading of a transmission line can be increased by increasing its voltage level addition of lumped capacitance in series both 1 and 3 addition of lumped inductance in parallel increasing its voltage level addition of lumped capacitance in series both 1 and 3 addition of lumped inductance in parallel ANSWER DOWNLOAD EXAMIANS APP
Power Systems The area under a flow duration curve represents maximum rate of run-off during the period. total power available. total quantity of run-off during that period. total of units of energy available. maximum rate of run-off during the period. total power available. total quantity of run-off during that period. total of units of energy available. ANSWER DOWNLOAD EXAMIANS APP
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