Power Systems Which type of connection is employed for current transformers for the protection of star- delta connected 3-phase transformer? delta-star star-star star-delta delta-delta delta-star star-star star-delta delta-delta ANSWER DOWNLOAD EXAMIANS APP
Power Systems Surge impedance loading of a transmission line can be increased by both 1 and 3 addition of lumped capacitance in series increasing its voltage level addition of lumped inductance in parallel both 1 and 3 addition of lumped capacitance in series increasing its voltage level addition of lumped inductance in parallel ANSWER DOWNLOAD EXAMIANS APP
Power Systems A fault occurring at the terminals of an unloaded synchronous generator operating at its rated voltage has resulted in the following values of currents and voltages. IR0 = j 2.37 pu IR1 = -j 3.05 pu IR2 = j 0.68 pu VR0 = VR1 = VR2 = 0.237 pu. Which of the following faults has occurred? LL LLG LLL LG LL LLG LLL LG ANSWER DOWNLOAD EXAMIANS APP
Power Systems In boiler water reactor (BWR) all of above. the feed water acts both coolant and a moderator. there is danger of radioactive contamination of steam. enriched uranium is used as fuel. all of above. the feed water acts both coolant and a moderator. there is danger of radioactive contamination of steam. enriched uranium is used as fuel. 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 840 Ω 400 Ω 210 Ω 420 Ω 840 Ω 400 Ω 210 Ω 420 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is/are true regarding HVDC? Corona loss is very much reduced in the dc line HVDC can utilize earth for its return path There is no skin effect in dc line All of these Corona loss is very much reduced in the dc line HVDC can utilize earth for its return path There is no skin effect in dc line All of these ANSWER DOWNLOAD EXAMIANS APP
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