why designer use kva rating instead of kw in transformer
rating???????????????
- 9 Answers
- 17185 Views
- I also Faced
- E-Mail Answers
Answer Posted / blake
The KVA rating of a transformer takes into account the
power factor of the supply system. i.e. If you have a 100kW
load on your system with a supply power factor of 0.8 then
your transformer will need to be at least 125kVA. p.f =
KW/KVA. So to answer the question a KVA rating allows for
the fact that differnt installations can have different
power factors.
| Is This Answer Correct ? | 40 Yes | 31 No |
Post New Answer View All Answers
I HAVE BEEN SELECTED FOR APGENCO A.E(ELECTRICAL) 2008.HOW MUCH WEIGHTAGE FOR INTERVIEW AND WRITTEN TEST.HOW I HAVE TO PREPARE. PLEASE GIVE INFORMATION IF U KNOW.WHAT ABT G.D THIS TIME.CALL RATIO 1:2
Difference between HRG and NGR. Are they both the same thing
IN induction motor pf is increased using capacitors.what will be the effect on motor and system when very large capacitor is accidently installed and pf goes leading.
if there is nutral in phase why we use earthing wire and grounding? even at fault condition the fault current flows to neutral (it is a lower path)
Practical condition in 400KV Sub station:- Breaker(open) , isolator(open), Earthing (close) at both end e.g A & B. Now Open A Stn Earthing than Open B stn Earthing (Which have a 50MVA reactor) , AND suddenly show R,Y,B phase 704KV,573KV,118KV respectively. Que is without closing of breaker how it is possible.???? My Whats app No:07621840498 for Further Discussion. Pls experts suggest.
how to enter inverter parameter? without manaual?
What is effect of over voltage and under voltage on ACB
difference between power surge and switching transient
Define cuttoff frequency?
For R-L or R-C ckt,time constant formula is L/R and RC respectively and its unit is in sec.Pls tell me the derivation
Please provided formula for calculate the cable size from step up transformer to M.V panel, run overhead aluminum cables, total load is 5mega watt, total length 900 feet.
what is lrs tank water resistance.
why fractional pitch winding generally used in alternators?
What is highest size of HT motor like 11 kv or 33 kv,and how to make it 750 rpm.i think the size will be very big.any idea ? pl. reply..
How to Make relay co ordination chart for a Electrical power distribution of a plant
