how to calculate the powerfactor in induction motor having
name plate details? for example 1 h.p motor 1.86 A 415 V

Answer Posted / md. zakir hosen

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


More info: Earn and Learn pls visit

http://a2zengineering.blogspot.com/

Is This Answer Correct ?    18 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is the AC Plant and how can do the work with parts and picture tell us 150 Tr

1550


On Which Pressure PRV is operated.

1278


how many single tension hardware are required on a double circuit transmission tower?

1480


what is protection class current transformer.

3431


DEFINE BREAKING CAPACITY OF BUSBAR & HOW IT IS CALCULATED?

4781






main difference between ac and dc?

1206


can u please mail me the syllabus for GET exam for damodar valley corporation?

1601


How to calculate per unit impedance of transformer?

1569


What happen to generator if i have unbalanced load?

1648


What size cable (based on voltage drop) is required to supply a 40 A three phase boiler if the wiring system is 75V single insulated cables installed in non-metallic rigid conduit 56m from the main switchboard? Voltage drop in the consumer's mains is 8V.

1485


What does Bode plot tell you?

807


how electrical earthing maintenance done in industry?

1027


Testing report of Earthing of 3.15 MVa PTR.

2126


what is the difference between switchgear and circuit breakers and is there any difference between outdoor and indoor switchgear and circuit breakers , and how would you differentiate between switch yard and substation and grid station . thanks

1742


At what factor resistance r of a conductor depends?

641