Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...

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


Please Help Members By Posting Answers For Below Questions

Draw the circuit of clapp oscillator?

1125


What is called grain-oriented laminations?

1140


Terminal blocks is used for segregate the connections... There is any principle for terminal block..?

2113


Describe the test procedure to determine the vector group

2138


how does a shunt reactor maintains the bus voltage???

2055


The size and construction of bushings in a transformer depend upon?

1755


how we can calculate 2 phase welding transformer rating or total power?

1854


how to carry out Magnetizing Current Test on Distribution transformer and what purpose we are doing this test. why transformer rating in always in KVA ? what ispositive, negative, zero sequence impedence? How ElCB tripping if Neutral touch with ground Why AC & DC capacitor are use in UPS ? why motor rating in KW? how to syncronize two dg sets

2173


In EDO ACBs what is a purpose of closing coil and motor, what is the operation of these devices are they inetconnected. means if we give supply to motor and by BCS we charge Closing coil,what exact is operation is and how it charge a spring of ACB. Sir if anybody has an wiring diagram please send me the link to operate and EDO breaker.

2151


What is the most important precaution in any experiment with d.c. Shunt motor?

1253


why chock were used in old tubelights but are not newest tubelights?

1945


what is the mechanism of operation of brushless dc motor why is it more wexpensive then ordinary permanent magnet motors

1996


What is difference between start imitation and start interlock for 3 phase motor protection ?

2244


Explain the function and difference of Restricted earth fault, simple earth fault and sensitive earth fault with connection diagram.

2647


Installation resistance for whole installation of 16 kva & 25 KVA DTRA a) Between each conductor b) between conductor to earth c) installation resistance for each apparatus, each conductor to earth d) earth resistance for the system of earthing

1901