Interested to Buy Any Domain ? << Click Here >> for more details...
How does frequency affect KVA rating of a transformer?
If a 500 kva, 400 v, 60 hz t/f is to be operated on 50 hz
frequency then how will its KVA rating change?
a-increase
b-decrease
c-remains same
Also explain why do u think like that.
- 8 Answers
- 33438 Views
- I also Faced
- E-Mail Answers
Answer Posted / jinboll
The transformer EMF equation shows that the EMF induced in the secondary or the primary side of a transformer is directly proportional to the product of the flux (Φm) through the transformer core and the frequency. This leads to the flux is proportional to E/f.
For example, the kVA rating of the 500v to 250v 60 Hz transformer will be smaller when used in Europe with a frequency of 50Hz. 500/60 = E/50, E is smaller than 500v on primary side. 250/60 = E/50, E is smaller than 250v on secondary side.
| Is This Answer Correct ? | 10 Yes | 2 No |
Post New Answer View All Answers
hello if any one have papers vof hpcl or sail, plz send me
when we decide to use soft starter drive or vfd drive in mcc to operate apump?
The screw thread commonly used for transmission of motion is one of the following types of threads
What are the advantages of thermal power plant?
On a 6 KVA UPS we have to provide a DC MCB for Battery bank of 16 nos (12 V 42 AH). What Shall be the current rating of DC MCB ?
if we have a industrial load of 400 kilowatts with 415 volt AC then how much total harmonic distortion (thd%) should be acceptable for steady power system.
State thevenintheorem?
What is the formula to calculate distribution transformer De-rating on iron losses basis
I need HT sphere gap calibration table. Can any body help me.
What is real time power factor control panel(RTPFC)?
How can we checked Killo Watts of Motor & Alternator?
What is the diff. between single compression and double compression gland
why starting current is high and resistance is almost 0 during the starting of motor dc motor...?
Explain few advantages of electric traction system?
How many gap between finger contact in a.c.b. and v.cb.?
