why transformer ratings are in kva

Answer Posted / anil rohilla

Since the pf of transformer is dependent on load
We only define VA rating and does not include pf.
Inspite this in motors pf depend on construction and hence
rating of motors is in KWatts and incude pf.

Is This Answer Correct ?    6 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

electrical

1893


Please elaborate th´evenin’s theorem?

807


how circuit breaker work.. what is the operations taking place inside a circuit breaker when an overcurrent occurs... is it similar to fuse?

1717


what material is the electrical housing wire made of? is there any difference for the telephone lines?

1571


I had applied for JE in PSEB, Can you pls send me the Question bank for related to my field

1535






how to find the resistance and gap volatage of the diode??

1659


what is 3rd Harmonics? how it is generated in alternator

8688


What is an ac motor?

817


How to do stting of vl250 siemens MCCB

2573


Tell me the reason of connecting domestic t/f primary in star or delta,and also secondary side.

1646


what is the major difference between LIBBP & HIBBP.. which one is most preferable..

2213


I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

1404


If one lamp connects between two phases it will glow or not?

708


What are electric motors?

762


I have an existing old MCCB. ABB Model SACE, the rating are: Ue = 660 volts, Iu =1250 Amps, 3 poles, Ith (max) =800 amps at 45 deg C. I need a circuit breaker for my 3 phase motors, 380 volts 60 hz. the supplier required the minimum ampacity of the breaker to be 911 amps. can i use this breaker with rating of Iu =1250 amps but Ith = 800amps maximum?

1904