Transformer and watt or VA relation?

  • Thread starter neduet
  • Start date
  • #1
64
0

Main Question or Discussion Point

Hi friends
it is not ( problem or numerical) just i want know


friends if i have 15kva transformer .
then can i say it can carry 1500 watt 10 (split AIR conditioners) as a load.
and what happened if i add 5 more (split AIR conditioners) in same case. just give me idea please.theoretically


Additional Details
15kva transformer is step-down give 220 volt r.m.s output and
AIR conditioners (a.c)(with common power factor) also can operate on 220 volt or 1500 watt each.
 

Answers and Replies

  • #2
217
1
No! Because:

Str should be greater than Pl/PF

However:
Str = 15 KVA
Pl = 10 X 1.5 = 15 KW
PF <1

-----------------------------------------------------------------
Creative thinking is enjoyable, Then think about your surrounding things and other thought products. http://electrical-riddles.com
 
  • #3
64
0
No! Because:

Str should be greater than Pl/PF

However:
Str = 15 KVA
Pl = 10 X 1.5 = 15 KW
PF <1






-----------------------------------------------------------------
Creative thinking is enjoyable, Then think about your surrounding things and other thought products. http://electrical-riddles.com

Sir please explain more for me. if you can.....
i cant understand this.

thanks a lot
 
  • #4
217
1
sorry! I can not.
 
  • #5
russ_watters
Mentor
19,567
5,842
I would say you can because the odds of all 10 being on at the same time are low. That's called "diversity".

M.S.J.'s point, though, was that the difference between kva and kw is power factor. Because of power factor, a reactive load draws a higher kva than kw.
 

Related Threads on Transformer and watt or VA relation?

  • Last Post
Replies
5
Views
11K
  • Last Post
Replies
3
Views
2K
  • Last Post
Replies
5
Views
32K
  • Last Post
Replies
4
Views
3K
Replies
11
Views
2K
  • Last Post
Replies
9
Views
37K
  • Last Post
Replies
11
Views
51K
  • Last Post
Replies
1
Views
1K
Replies
18
Views
25K
Top