how to calculate the powerfactor in induction motor having
name plate details? for example 1 h.p motor 1.86 A 415 V
Answers were Sorted based on User's Feedback
We know P=VICOSф.
Here, P=1H.P=746W,V=415v,I=1.85amp
Now putting this value on the equation simply we get the PF.
746=415*1.85*COSф
746
=>COSф=----------=0.9716 and it must be lagging.
415*1.85
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| Is This Answer Correct ? | 18 Yes | 2 No |
Dear Zakir husan
What is 1092 in your equation .
That we know that
p=root3 v*i*cos phi
1 h.p =746 watts = 1.732*415*1.86*cos phi
cos phi= 746/1.732*415*1.86
= 0.55 and pf leging.
| Is This Answer Correct ? | 12 Yes | 3 No |
Answer / aaaa
its depend on phase no of the motor.(3-phase , single phase)
| Is This Answer Correct ? | 7 Yes | 2 No |
Answer / vishnu
here P=1H.P=746w,
I=1.86,
V=415V
FORMULA P=1.732*V*I*COS phi
cos phi=746/1.732*415*1.86
cos phi=0.55
| Is This Answer Correct ? | 9 Yes | 5 No |
Answer / jagjeet
Dear Satish
The power factor dependent on the loading factor of the
induction motor , You can measure the Line current and apply
the formula suggested by Zakir or you can refer the
characteristics charts of Motor to find out the Power Factor.
| Is This Answer Correct ? | 5 Yes | 2 No |
Answer / shakus
@Sakthish_kumaar
Please mention whether the motor is single phase or three
phase?
apply for single phase>>
P=VIcosØ
and Apply for three phase>>
P=√3VIcosØ
| Is This Answer Correct ? | 2 Yes | 0 No |
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