Power Systems A 10 MVA generator has reactance of 0.2 pu. Find the new reactance value for 50 MVA base? 5 pu 0.2 pu 1 pu 0.25 pu 5 pu 0.2 pu 1 pu 0.25 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems The function of a surge tank is to supply water at constant pressure. relieve water hammer pressure in the penstock. none of above. produce surge in the pipeline. supply water at constant pressure. relieve water hammer pressure in the penstock. none of above. produce surge in the pipeline. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Surge impedance loading of a transmission line can be increased by increasing its voltage level addition of lumped inductance in parallel addition of lumped capacitance in series both 1 and 3 increasing its voltage level addition of lumped inductance in parallel addition of lumped capacitance in series both 1 and 3 ANSWER DOWNLOAD EXAMIANS APP
Power Systems An isolated synchronous generator with transient reactance equal to 0.1 pu on a 100 MVA base is connected to the high voltage bus through a step up transformer of reactance 0.1 pu on a 100 MVA base. The fault level at the bus is 200 MVA 500 MVA 400 MVA 100 MVA 200 MVA 500 MVA 400 MVA 100 MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems Oxide film arrestor has which of the following properties? Both A and B. Installed at points of transmission line where daily visit is difficult. It is expensive. Does not require daily charging. Both A and B. Installed at points of transmission line where daily visit is difficult. It is expensive. Does not require daily charging. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Zero sequence currents can flow from a line into a transformer bank if the windings are in delta / delta. ground star / delta. delta / star. star / grounded star. delta / delta. ground star / delta. delta / star. star / grounded star. ANSWER DOWNLOAD EXAMIANS APP
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