Motor Speed and Power Factor

6 comments

Rate

Anonymous Poster	Motor Speed and Power Factor 10/31/2008 5:40 AM
	is there any relation between speed of motor and power factor?
	Reply

Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!

Anonymous Poster	#1 Re: relation between speed of motor & power factor 10/31/2008 9:09 AM
	Hi, For induction motor PF Power P= 1.732 VI Cos Pi. The rated output is related to the Power Factor. Regards, N.SUresh
	Reply

V.I.Abraham Guru Join Date: May 2007 Location: Pune , India Posts: 875 Good Answers: 42	#2 Re: relation between speed of motor & power factor 10/31/2008 9:36 AM
	It appears that you have modified the earlier thread with an addition "motor". There are so many types of motors. So again some one has to make a guess to answer your thread. Is there any point in putting up a thread with out clear understanding of the subject. Please explain your question clearly to get a proper answer.
	Reply Score 1 for Good Answer

Blink Guru Join Date: Aug 2006 Posts: 4484 Good Answers: 246	#3 Re: relation between speed of motor & power factor 10/31/2008 2:23 PM
	There can be a relationship, in that PF varies with load, and speed may also vary with load. Also, for some of the same reasons that motor efficiency varies with speed, you'd expect PF to vary with speed. A good way to get a feel for the relationships might be to get a power factor/watt meter and experiment. __________________ There is more to life than just eating mice.
	Reply

nesubra Guru Join Date: Nov 2006 Posts: 729 Good Answers: 2	#4 Re: Motor Speed and Power Factor 11/01/2008 11:51 PM
	As pointed out PF varies with load .Now when load is reduced speed increases.so u can draw ur conclusions.This is for a induction motor of both types. __________________ To avoid crticism do nothing,say nothing,be nothing
	Reply

PWSlack Guru Join Date: Jan 2007 Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on. Posts: 32175 Good Answers: 839	#5 Re: Motor Speed and Power Factor 11/03/2008 7:49 AM
	For a series-wound DC motor? None whatsoever..... __________________ "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
	Reply

nesubra Guru Join Date: Nov 2006 Posts: 729 Good Answers: 2	#6 In reply to #5 Re: Motor Speed and Power Factor 11/03/2008 11:50 AM
	I would like to add For that matter any DC motor __________________ To avoid crticism do nothing,say nothing,be nothing
	Reply

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!

Copy to Clipboard

Anonymous Poster (1); Blink (1); nesubra (2); PWSlack (1); V.I.Abraham (1)

	Got Something to Say?
	Ask a Question Start a Discussion

	Aerospace
	BioMech & BioMed
	Chemical & Material Science
	Civil Engineering
	Communications & Electronics
	Education and Engineering Careers
	Electrical Engineering
	General Discussion
	Instrumentation
	Manufacturing
	Mechanical Engineering
	New Technologies & Research
	Software & Programming
	Sustainable Engineering
	Transportation

	Site Directories
	Forum Directory Blog Directory User Group Directory RSS Feeds CR4 Rules of Conduct CR4 FAQ Site Glossary Who's Online (64 right now) Show Members