Explain why machinery used on a.c supply is usually rated
in KVA instead of KW?

Answer Posted / bhanu pratap pal

Because the power factor of the machinery is not a constant
parameter i.e. it varies with the change in the supply,
hence the rating of machinery declares in KVA.

Is This Answer Correct ?    4 Yes 10 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is the k var ratting of 1250kva

1513


What is the basic principal, by which DC voltage level is increased more than the supplied AC voltage during conversion. As upto AC level it is contorrled by firing anlge but after maximum level how is it possible.Please clear picture. OR we have to supply the higher level AC?

1469


What is a copper loss or i2r loss pc?

708


the problem faced on star or delta winding connection??

1497


what is acceptance test in electrical engineering.

1702






can any one suggest me the tilt angle of my solar pannel ?? or tell me how can i know the fix tilt angle of my solar pannel?? my cordinates are 31.503629,72.993164.

1377


Fantio of tranformer

1743


what is vtg limit of earth and neutral at transformer side?

1572


What is resolution of a measurement?

730


When MICC cables used ?

1600


armature winding of dc machine produce alternating emf then it convert in to dc by using commutator.But only we consider armature resistance why don't we consider inductive reactane effect?

1628


determine two methods to find loose connection in operational electrical system?

1235


What is the types of HT motor testing

3013


What is meant by celling voltage & current in excitor ?

1575


Differentiate between Zero and Negative sequence current

1443