Power Systems If the inertia constant H = 8 MJ/MVA for a 50 MVA generator, the stored energy is 400 MJ 50 MJ 8 MJ 200 MJ 400 MJ 50 MJ 8 MJ 200 MJ ANSWER DOWNLOAD EXAMIANS APP
Power Systems If a 500 MVA, 11 kV 3-phase generator at 50 Hz feeds through a transfer impedance of (0+j0.605) Ω/phase, an infinite voltage also at 11 kV, then the maximum steady state power transfer on the base of 500 MVA and 11 kV is 0.5 pu 1 pu 0.4 pu 0.8 pu 0.5 pu 1 pu 0.4 pu 0.8 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Advantages of per unit system is/are Need of transformation ratio No units for any quantity All of these It has units for all quantities Need of transformation ratio No units for any quantity All of these It has units for all quantities ANSWER DOWNLOAD EXAMIANS APP
Power Systems The function of draft tube is reaction turbine is to convert kinetic energy of water. all of above. reduce water hammer. increase flow rate of water. convert kinetic energy of water. all of above. reduce water hammer. increase flow rate of water. ANSWER DOWNLOAD EXAMIANS APP
Power Systems An ACSR conductor has internal inductance 0.05 mH/Km for µr = 1. If this ACSR is replaced with another having µr = 2, then find the internal inductance? 0.1 mH/Km 0.025 mH/Km 0 mH/Km 0.05 mH/Km 0.1 mH/Km 0.025 mH/Km 0 mH/Km 0.05 mH/Km ANSWER DOWNLOAD EXAMIANS APP
Power Systems Lightning arresters are used for protection of equipment from short circuits All of these protection of equipment from open circuits protection of equipment from external lightning protection of equipment from short circuits All of these protection of equipment from open circuits protection of equipment from external lightning ANSWER DOWNLOAD EXAMIANS APP
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