why transformer ratings in kva?

Answer Posted / vignesh

Thumb Rule - all AC power sources - Generators,
Transformers, UPS etc. are rated in KVA and all loads are
rated in Watt or Kilowatt..
AND hence there is no need of power factor.

KVA=V X A (FRO SINGLE PHASE TRANSFORMER)
KVA = 1.732 X V XA (FOR THREE PHASE TRANSFORMER)

Is This Answer Correct ?    3 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is the method of earthing of a transformer using electrodes?

1729


Please define ampere?

681


in dc series motor if field wdg is shorted then

1445


What is the loss of transformer of 220kv/11kv, 63/80 MVA and 18.05% impedance

1555


how r charge carriers produced

1635






1.What is the range of stator resistance of 3-phase induction motor? 2.Two electrically operated vibro motors are foxed in parallel direction in vibrating feeders. what is the direction of both vibro motors?

1462


what is the working principle of a DG Set, Alternator, & exiter

9750


why T/F winding temp measurement cts are odd secondary current ie,109A/1.2A/1.4A?

1385


is the value of inductance depends upon the evalue of thitha in doubly excited machine?

1461


various transmission tower like .,D tower ,K.C.O tower ,C.C.O tower,K.C.R tower ,C.C.R tower ,H.C.O tower in different tons.

2679


What is the name of transformers oil filteration equipment?

1597


what is package substation.how many types they have

1680


what transformer we used normally and upto which kva?

1497


How to Calculate Current Rating of SDFU (Switch Disconnector Fuse unit) for Protectionof Capacitor Bank connected to Busbar of 800Amp,in LV side of 11/0.433KV, 250KVA Transformer?

4898


ROC converges if poles and zeros lie inside a. Origion b. Z=1

1793