when an induction motor runs on load.at that time if we reduce the supply voltage the current increases.But when it runs without load,if we reduce the supply voltage the current also reduced.why?.i checked it practically also.
1 4311We are getting supply at33kvand it stepdown to 11kv.So Our requirement is 11kv voltage.why we draw 33kv from the grid instead of 11kv?
2 5396Is reverse power relay of generator operate due to voltage variation problem? please clearify.
1 3734two TG running in parallel at equal load.one TG CB tripped in reverse power relay.after tripping found its excitation was on & turbine running at rated speed.Please clearify why that TG tripped in reverse power ?
1 3267what is the difference in operation of 3 phase motor when am forward delta connection and reverse delta connection?
1 4669Post New Birla Electrical Engineering Interview Questions
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