Interested to Buy Any Domain ? << Click Here >> for more details...
how we can calculate power factor without knowing current in
230v 100w load ?
- 10 Answers
- 19548 Views
- I also Faced
- E-Mail Answers
Answer Posted / nandu
this is approximation:
As we know that power factor can,t be grater than 1 and we
also know that our supply voltage variation is -10% to +10%
we can't take +10% because pf<=1
so -10% of 230 is v(10%)=207v
as we already know that pf=p/vi
=> i=p/v(10%) =100/207A
=> pf=100/230(100/207)=207/230=0.9
so power factor is (approximate) = 0.9
| Is This Answer Correct ? | 3 Yes | 1 No |
Post New Answer View All Answers
what reactive how to maintain
Pl. share your experience about industrial-electronics repair of machine tool.
How earthing/grounding done in aeroplanes and ships.
it is possible to rotate the DG engine dc starter with wrong polarity connections? why?
What are the different types of hydro schemes?
I have a small system with two motors that are running on 380 vac, 60 hz. These motors are expensive and I usally get them from Brazil. I am adding another motor to the system, but I want to purchase a 480 vac, 60 hz motor to use. It will be on a VFD that is rated fro 380 thru 480. Is this posible and will I have to use a larger motor and derate it?
what is the difference b/w ATS and HTS?
low frequency protection why recomend?
Why does amplifier gain reduce?
In siemens S7-300 PLC, what is function and function block ? What is the difference between them ? When to use function and when to use function block ?
why ht motors are star connected?
i have attended the interview on 4th June,08 at Kolkata in IOCL, can anybody tell me what is its result
how the B-H loop obtain under the static condition
What is the Nyquist criterion regarding control systems?
What type interview questions ask in Electrical technicians
