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
- 31150 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
The slip during plugging operation is given by= A 1-s B 2+s C 1+s D 2-s
TELL ME WHAT IS INDUCTOR AND CAPACITOR WHAT IS IT BASIC OPERATION ANDFUNCTION?
Hello everyone, somebody knows what is a "surplice power" ? The hole phrase is: "This rating is appropriate for a generator set paralleled with an infinite bus e.g. a national electrical supply network or grid where the generator set is run at 100% load, 24 hours a day, 365 days a year and any surplice power is exported into the grid" Thanks in advance.
EHV current carrying parts need to have smooth finish,then how can a 245kv GIS with emery finish can run so long?
Please send 110 kv sb station full single line drawing(sld)
wat is meant by PX class in ct?
What products have you designed which have entered high volume production?
In convertor can we use rectifier thyristor in place of invertor thyristor with explain.
what is the difference between changer, converter and transformer?
what is the calculation involved to design the heater to heat 10KL of water in temperature control unit?
What is a differential amplifier? Also, explain cmrr.
advantage of motor design on higher power factor . normally motors are designed for .8 power factor. what is advantage of designing at .88 power factor
The electromagnetic torque developed is proportional to what in a D.C series motor?
how to electrically make connection to ferroli GN2N?
What safety precaution are to be taken for avoiding electric hazards ?
