Answer Posted / umesh

induction motor have inductive materials which lags behand
the the voltage,that's way power factor decreases it
connected to induction motor,
PF can improve the power factor by connecting the
syncronous motor parralel to the incution motor ,

Syncronous motor running cost is costly, it will be run in
idle

mostly the questions were from machines... d.c. machines, transformer, synchronous and induction all theory paper........ few from power system... but the level of paper was easy.....

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PLEASE SEND ME NTPC RELATED INFORMATION LIKE WHICH TOPICS HAV MORE SCOPE,BOOKS TO READ,CUT OFF...PLEASE.mail at thiru.1203@gmail.com

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