Answer / k.rajmohan

KW is the real power
KVA is the apparant power
Kvar is reactive power

Answer / manish

differnece b/w KW & KVA is jst of POWER FACTOR.
KW=KVA*P.F..

Answer / kamal007_singh

kilowatt-hour (kWh) is the measure of energy consumption
(power over time).
As an example, a 60 watt light bulb burns power at the
rate of 60 watts (or 0.060kW). In one hour, the bulb will
consume 60 watts times 1 hour, or 60 watt hours). In 12
hours, that same bulb will have consumed 60 watts times 12
hours, or 720 watt hours (0.72kWh). Therefore, a kWh is a
unit of energy.

Kilovolt-Ampere (kVA)
Is a unit of electrical power, often referred to as
Apparent Power. This is what the utility must supply to its
customers on the primary side of the facility transformer
and is the basis for sizing power plants.
Different
facilities may use the same amount of real power (kW), but
different supply levels of apparent power (KVA) depending
on the kind of equipment in the facilities. Equipment with
lots of magnetic fields (like motors) will require more
apparent power to feed the same real power demand. If you
know the kilowatt demand (real power), then you can
calculate the electrical energy consumed over time (kW x
time = energy). There is also a relationship between real
power and apparent power that is based on the concept of
power factor. If you know your real power (kW) and your
power factor, you can calculate your level of apparent
power (KVA).

Answer / anjorin taiwo

kw=active power measured in watts, while kva=apparent power
measured in volt-amp

Answer / jayanta

kw:it is the real power
kva:it is the appreant power(volt*amp)
kva=kw*p.f

Answer / syed arish ali

kw means that it is the power deliverd to the load. where
as the kva is the power can be meet the load demand. so
that kva is not with respect to load.

if we simply says kw=kva*power factor.

so that only alternators and transformers(giving supply,not
respect to load) specified in kva and load(motors)
specified in kw.

Answer / arun

The main difference between KW & KVA is the power transfer
to load & current.In case KVA it is easy to calculate
current suply to equipment.This is known as apparent power.

Answer / muhammad ashraf

KW is actual power and KVA is apperant power, all
transfomers and alternators are design at KVA bases and all
motors are design at KW bases. we can calculate the power
factor by using both.

Answer / alok bahukhandi

kva- apparent power
kw- active power
Var- reactive power

apparent power= active + reactive power

kva is printed on the transformer than kw because kw is just active power , whereas some reactive power(Var) is also involved there, therefor the total power i.e the apparent power(kva) is printed insted of active power(kw).

Answer / tahir wasim

WHY KVA PRINTED ON TRANSFORMER INSTEAD OF KW.

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