why transformer ratings in kva?
- 99 Answers
- 210516 Views
- Bhel, College School Exams Tests, DOW, Emco, Esab, GE, KCP, PGCVL, Sodexo, TCS, vtps, Wipro, I also Faced
- E-Mail Answers
Answer Posted / s saranraj(sri durgadevi polyt
Both the losses of the transformer is independent of the
power factor (cos phi), which means a transformer would not
make any change in the power factor, since both the losses
viz copper loss(depends on current) and iron loss(depends
on voltage) are independent of power factor, that is why a
Transformers rating is not on kW, but on KVA
(or)
because,ironloss is depends in voltage and cu_loss is
depends in current.so the transformer ratings in kva
| Is This Answer Correct ? | 5 Yes | 3 No |
Post New Answer View All Answers
hi friends ,iam working as genset AVR service engineer in electrical field from past 2 yrs throughout india . i plan to shift in some other job without travelling in same field because i con't travel,i dont know what i do for that so please guide me what job is suited for me,how i can serch the job please anybody helpme iam totally confused
what are inductive and capacitive voltage transformers.what are their applications
How can I calculate the Mega watts required to run a plant having many electric motors and other electrical components.
how we test a 3 phase motor on single phase supply....? HOW WE RUN A 3 PHASE MOTOR ON SNIGLE PHASE. supply for testing..? how we verify of a 3 phase motors 6 wire & name thame a1/a2/a3..b1/b2/b3 and c1/c2/c3 for connecting star delta starter ........i have only 1 phase supply ? help forum..........
what is gridrotor resistance starter
how to conduct dc resistance test for rotor of an alternator and how to measure the rotor dc resistance value theoritically?
1.WHAT IS A SMART CAPABLE DB ( DISTRIBUTION BOX) ? 2. HOW TO DECIDE THE TYPE OF DB TO BE USED ( RECESSED/ PLUG TYPE/ SMART ETC ETC? 3. WHAT IS MILLENEUM BUS BAR USED IN DB? 4.DIFFERENTIATE MCCB AND MCB.
why and how current drawn by battery charger depends upon the altitude where it is located?
How to select batteries required for ups and the inverter if we Known load? And how AH is selected of battery?
I have 4 busbar of 1000 ampere. we use 4 busbar to make 4000 ampere in one phase.my problem is that when we applied 60% load on that then busbar produced high noise.what is the reason of that and how can i minimize that noise.
Why slip ring ind. motor power consumption is low compare to induction motor .same 90 kw motor used same load output
We have 5 Distribution sections with variable loads&We have 3 Gensets(500kva,380kva&250kva) our total load is between 400kva to 600kva. so how could we connect 3gensets.
DEAR SIR,I GOT THE CALL LETTER FROM RRB, SECUNDERABD AS A JE-II SO PLEASE PROVIDE ME SOME MODEL QUESTION AND ANSWER PAPERS AND LAST YEAR QUESTION PAPERS
HOW TO CALLICULATE RESITENCE,REACTANCE AND IMPEDENCE VOLTGE OF TRANSFORMER 13.33 KVA 144/240 VOLTS 93/56 A WITH FORMULA
why we take movement of rotor always in counter-clockwise direction in 3-phase induction motors?
