Power Systems Zero sequence currents can flow from a line into a transformer bank if the windings are in star / grounded star. delta / star. ground star / delta. delta / delta. star / grounded star. delta / star. ground star / delta. delta / delta. ANSWER DOWNLOAD EXAMIANS APP
Power Systems An unloaded generator with a pre-fault voltage 1 pu has the following sequence impedance: Z0 = j 0.15 pu, Z1 = Z2 = j 0.25 pu The neutral is grounded with a reactance of 0.05 pu. The fault current in pu for single line to ground fault is 2.5 pu 7.25 pu 4.28 pu 3.75 pu 2.5 pu 7.25 pu 4.28 pu 3.75 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems An hydro-graph indicates the maximum and minimum run off during the period. the average run off during the period. All of these the discharge at any time during the period under consideration. the maximum and minimum run off during the period. the average run off during the period. All of these the discharge at any time during the period under consideration. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 10 MVA generator has reactance of 0.2 pu. Find the new reactance value for 50 MVA base? 1 pu 0.25 pu 0.2 pu 5 pu 1 pu 0.25 pu 0.2 pu 5 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has a surge impedance of 400 Ω is connected with the cable having surge impedance of 40 Ω, a surge magnitude of 100 kV is travelling from the transmission line towards the cable. Find the incident current? 100 A 250 A 200 A 2500 A 100 A 250 A 200 A 2500 A ANSWER DOWNLOAD EXAMIANS APP
Power Systems Asynchronous tie line is a AC transmission line DC transmission line either 1 or 2 None of these AC transmission line DC transmission line either 1 or 2 None of these ANSWER DOWNLOAD EXAMIANS APP
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