How to select a contactor? How many types of contactors are
how to decide the capacity of accl
do you have some of interview Questions in power and
genrator section in general whith answers
what is the relationship between current&voltage in
practical purpose ?
it is in our knowledge tht right plug of supply of
residential suppy system is phase n other is
neutral...howevr the battery charger of mobile works in both
ways...i mean it is not restricted in only one direction.ny
of the holder of charger can hav phase .so y is it not lik
tht phase of supply must b connected 2 phase of charger...?
how to calculate differential current when we testing differential relay..suppose we have 1000kw generator,630amp VCB,what value we should put /inject so that relay trip the VCB? PLLZ justify ur comment
what is the min and max ohmic resistance for the earthing
rod installed for lighting poles for street light network
Draw a block diagramof Three UPS systems connected in
Is it possible to protect 3phase overload and earth fault
of the 3phase system using two CT's.
What is the formulae of Megger value for a A.C.Motor
What is the effect of interchanging core(made of steel) and
winding(made of copper) material in case of transformer? Give
proper explanation in regard to different losses in
On a 6 KVA UPS we have to provide a DC MCB for Battery bank of
16 nos (12 V 42 AH).
What Shall be the current rating of DC MCB ?
why aggregate is placed all around substation ground.
What is Delta Connection? What is meant by Forward Delta &
Reverse Delta & How Will be the Connection in Power