why designer use kva rating instead of kw in transformer
rating???????????????
Answer Posted / md. jafar iqbal
The total losses of a Transformer= Core loss+Copper loss.
Core loss depends on voltage and copper loss depends on
current that means total losses depends on current & volage
but not depends on their phase angle.There is no relation
between the total loss of a transformer and the change of
power factor. This is why rating of a transformer is
written KVA not KW.
| Is This Answer Correct ? | 34 Yes | 7 No |
Post New Answer View All Answers
What size cable (based on voltage drop) is required to supply a 40 A three phase boiler if the wiring system is 75V single insulated cables installed in non-metallic rigid conduit 56m from the main switchboard? Voltage drop in the consumer's mains is 8V.
how test transfomer(3 phase75kva) by megger
Name two low frequency oscillators?
IF I KNOW THE AREA OF CROSS SECTION OFTHE WIRE , WATTAGE OF THE LOAD ,VOLTAGE SUPPLY WHAT IM GIVING TO THE LOAD AND ALSO POWER FACTOR OF LOAD ....... SO GIVE ME FOR WHAT AMOUNT OF CURRENT I SHOULD USE WHICH TYPE OF CABLE?
What is core CT & it's function?
at what basis/standard we have to arrive the current density of aluminium/ copper in busbar?
my diploma certificate in my higher education college
What is servo motor and what are different types of servo motor
what is the physical connection of a analog i/p to a analog i/p module (ab plc)and through a analog o/p module(ab plc) to a analog o/p . and how all the process control by scada
what is mean by dual digital protection in the relay field?
How could I get a certificate of competency as Electrical Supervisor? I have completed By BTech in Electrical this year(2012) for VJTI Mumbai Maharashtra. Is it compulsory to be produced while joining?
advantages & disadvantages of Lagging and leading power factor .
Is it possible to protect 3phase overload and earth fault of the 3phase system using two CT's.
Why PT voltages are measured with respect to ground? What do u mean by voltage or current polarized.
what is magnetizing current test in power transformer