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A heater capacity is 3.0 KW on 415V . if supply voltage is
380Volt . what is heater capacity on 380volt . and how
calculate and give formulas . Prakash veer singh
Roto power Engg.
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Answer Posted / anil patel
1. Given v= 415v
kw= 3w
formula = w=v*v/R
3000=415*415/R
R=172225/3000
R=57ohm
I=v/R
I=415/57=7.28amp
2. given v=380volt , kw=3
R=380*380/3
R=48.133
I=V/R
=380/48.133
=7.8 amp
| Is This Answer Correct ? | 5 Yes | 7 No |
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