Answer / s.arunkumar

KVA: For transformer the rating will be mentioned in KVA
b'coz real power are expressed in terms of voltage and
current not dependent on powerfactor.

KVAR: It is reactive apparant power ie., kVAr=kW*TAN PI

Answer / bindu

KVAR-Kilo Volt Ampere Reactive, it is mentioned for
Capacitor rating.
KVA-Kilo Volt Ampere,it is mentioned for Generator rating.

Answer / ganapati

KVAR= Ractive power
KVA= Apperant power

Answer / nkwocha obinna

KVA = V*I
KW = V*I*cos theta
KVAR = V*I*sine theta
kw is the real power
kva is the apparent power
kvar is the reactive power

Answer / arun

kva is apparant pawer which is used for transformer or generator rating
while kvar is reactive power kilo volt ampere reactive it does not do any work in the circuit only moves forth and back .
m i wrong ?
if yes suggest correct answer

Answer / venkatesh

from power triangle we have kva^2=kw^2+kvar^2

Answer / anand

KVAR is the reactive power utilised by the generators,
transformers, motors for producing magnetic flux
KW (true power) is the actual power or true power that
performs actual work
KVA ( Apparent power)is the vector summation of KW+KVAR
KVA=KW+KVAR

Answer / sudheer

KVA=KW/COS.theta
kvar= kw/ sin.theta

Answer / shriram gaur

KVA=V*I
this is used for measureing the total power fed into the
ckt, so generally used in defining the rating of the
transformer, also independent of PF.

KVAR - sqrt((KVA*KVA)-(KW*KW))
This is the correct relationship between the all three
power.

Answer / jobmonjacob

3 phase needs a neutral for tapping 230V

whatis mean by voltage?

7 Answers  

what is upper impedance and lower impedance of a distance relay

0 Answers  

why open circuit test is conducted on hv side and short circuit test is conducted on lv side of a transformer ?what is the reason for it ?

3 Answers   HCL, NTPC,

what factor is necessary during design of HT & LT MOTORS.

2 Answers   ABB, L&T,

What is protection for single phasing ?

6 Answers   SISL,

The corona effect is more in a) summer b) winter c) dry weather d) humidity weather

10 Answers   CPCL,

what is meant by cbct elr?

3 Answers  

How to calculate approximate load loss of a distribution transformer by knowing %ge imp of transformer?

0 Answers  

What is instrumental error?

0 Answers  

what is the technical diffrences of mccb and acb

11 Answers   TransWorks,

our plant maximum demand has 500 kva.need to suggest me to maintained pf 0.98.how much capacitor bank will be connect to the supply line.

1 Answers  

we can run 2phase as 3phase .what will be the differnce with respect to phase angle, power, current between the two modes

0 Answers