Answer / gaurav tripathi

in the transformer there are two losses,core loss and 'cu'
loss ,core loss depends on voltage and 'cu' loss depends on
current hence rating of transformer is on KVA not on KW

Answer / abhishek nigam,akshay kumar si

actually rating of the machine (kva or kw) depends upon the
power factor since the load power factor to which
transformer is supplying power is not known , it may be
capacitive ,inductive , or resistive that is why its rating
is in kva and not in kw

Answer / manoj

Actually the
rating of a
transformer is
limited by
temperature .here
temperature of a
transformer
increases by
losses that is
core and copper
losses these
losses depends
on the voltare
and current but
almost
indepedent of
power factor .so
it is rated in
kva

Answer / prasanth p.s

copper loss depend on current and core loss depend on voltage
there for total loss depend on voltage and current not on powerfactor .in other equpment like motor total loss depend on
powerfactor ie kw=(v*i*pf)/1000 .there for motor rated in kW.but tranformer rated in kVA because kVA=(v*i)/1000

Answer / maheshbabu-calicut

the capacity of a transformer depends on the amount of
secondary current,it can deliver safely.(more kw at good pf
and lower at poor pf)

What is the effect of earth capacitance

3 Answers  

How to set the relay,,??

0 Answers   Megatron Solutions, Nestle,

WHAT ARE THE DISADTAGES OF SINGLE-WIRE-EARTH-RETURN SYSTEM USED FOR RURAL ELECTRIFICATION?

0 Answers  

which transmission is cheaper ac or dc?

10 Answers  

What is state space method ? Why its used ? Can it applicable on linear, non-linear, 1st order, higher order, homogeneous, non-homogeneous, open-loop , closed loops , stable & unstable systems ?

0 Answers   Limton,

what is the meaning of spur line?

1 Answers  

Define delay time.

0 Answers  

Describe the test procedure to determine the vector group

0 Answers   MPSEB,

electrical ques

0 Answers  

how techometer works and how it will be connected above the flywheel in dg system

1 Answers  

If oil and air can withstand a high MeV when used as an insulator in a transformer, what are the values of how high for each material?

0 Answers  

What is Surge Capacitor? Why it is require in Generator Circuit Breaker,inspite of surge arrester?

0 Answers