Power Systems For accurate load flow calculations on large power systems, the best method is Decoupled method N-R method All of these G-S method Decoupled method N-R method All of these G-S method ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following material is not used as fuse element? Copper. Silver. Carbon. Aluminium. Copper. Silver. Carbon. Aluminium. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A string insulator has 4 units. The voltage across bottom most unit is 10 kV and its efficiency is 90%. Find the total operating phase voltage? 45 kV 36 kV 32 kV 40 kV 45 kV 36 kV 32 kV 40 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Buchholz relay is used for protection of bus bar. none of these. alternator. transformer. bus bar. none of these. alternator. transformer. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Lightning arresters are used for protection of equipment from open circuits protection of equipment from short circuits protection of equipment from external lightning All of these protection of equipment from open circuits protection of equipment from short circuits protection of equipment from external lightning All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems The neutral of 10 MVA, 11 kV alternator is earthed through a resistance of 5 ohms. The fault ready is set to operate at 0.75 A. The current transformers have a ratio of 1000/5. What is the percentage of the alternator winding is protected? 85% 15% 88.2% 11.8% 85% 15% 88.2% 11.8% ANSWER DOWNLOAD EXAMIANS APP
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