WHAT IS THE DIFFERENCE BETWEEN KW AND KVA ?
Answers were Sorted based on User's Feedback
Answer / k.rajmohan
KW is the real power
KVA is the apparant power
Kvar is reactive power
Is This Answer Correct ? | 61 Yes | 5 No |
Answer / manish
differnece b/w KW & KVA is jst of POWER FACTOR.
KW=KVA*P.F..
Is This Answer Correct ? | 44 Yes | 9 No |
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).
Is This Answer Correct ? | 45 Yes | 16 No |
Answer / anjorin taiwo
kw=active power measured in watts, while kva=apparent power
measured in volt-amp
Is This Answer Correct ? | 26 Yes | 4 No |
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.
Is This Answer Correct ? | 10 Yes | 1 No |
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.
Is This Answer Correct ? | 8 Yes | 4 No |
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.
Is This Answer Correct ? | 7 Yes | 3 No |
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).
Is This Answer Correct ? | 4 Yes | 0 No |
WHY KVA PRINTED ON TRANSFORMER INSTEAD OF KW.
Is This Answer Correct ? | 3 Yes | 4 No |
what is the earthing condition between earth & neutral.
132 KV TRFO BUSHING CT BURNT WHEN A 6.6KV HAS BEEN APPLIED TO IT .WHY .ANY REASON ?
WHAT IS FAULT CAPACITY OF HT MOTOR TERMINAL BLOCK? ANY BODY HAVE ANSWER PLZ....POST IT.
why phase to phase voltage are 290 rather then 440?
what is effect of leading power facter on the system and billing
Differentiate between digital phase converter and ordinary phase converter.
One Township having 850 house and each house load is 2.2KW single phase & 5HP 3 Phase motors of 10 Nos .Who can calculate 11 KV transformer capacity .dilip_bhasker@yahoo.co.in
what is the powerfactor
Resistance of a conductor in a close electrical ckt is practically zero why?
method to check earthing
How loading get increased in generator not the speed, while we increasing steam to turbine.
In the N-series schneider reclosers. What is the difference between current during fault time and current at tripping? This appears in the Event log in an event of a trip out.