A powerplant has 8 gensets operating in grid parallel mode. In one genset sometimes there is pf variation and kvar variation. The plant operates in pf mode. When this variation is observed the load is stable, voltage is also stable, freq and genset speed is also stable. How will you check the functioning of pf card. What shall be the ideal output vdc of the pfc, from there it is input to AVR?

2280

why we use four type of phase angle difference between pimary & secondry winding of a transformer & where we use them?

2043

Discuss the effect of sudden loading of an induction motor

1830

Define pole pitch?

1021

i want bhel placement paper for electrical if anybody having pl send to my id kavitha867@myway.com immediately

1943

how does high earth to neutral voltage affects electronic circuit?

1899

We have 90mX100m hangar with 16 no.of supporting pillar. It is required to provide power supply on all pillars. what is suggested earthing scheme for hangars.

1954

What do you mean by pull of electromagnet?

991

Pl.brief me any electrical major fault you have rectified.

1927

How does the slip regulator works as a startor

1917

Please clarify 1. Icw: rated short circuit working withstand capacity 2. Icu: Rated ultimate breaking capacity 3. Ics: Rated service short circut withstand capacity 4. other specification of ACB

2702

why effective resistance should be more than static resistance in transmission line?

2057

What is the formula to calculate the rating of power cable for three phase current.

2082

If mutual flux is 1.2wb & power factor is 0.8 lag , then what is the Useful flux of a transformer?

4442

what id a dry type transformers and its function ?

1724