Previous in Forum: Problem in DC Motor   Next in Forum: Building a Regenerative Capable Bicycle
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
6 comments
Rate Comments: Nested
raju chidurala
Member
Engineering Fields - Electrical Engineering - New Member

Join Date: Aug 2012
Posts: 9

Transmission Line Parameters

08/18/2012 10:43 AM

is power factor is constant throughout a transmission line?
Register to Reply
Pathfinder Tags: 12345
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
lyn
Guru

Join Date: Oct 2008
Posts: 42355
Good Answers: 1693
#1

Re: transmission line parameters

08/18/2012 10:50 AM

Do you mean throughout the cross-section of a power line, or do you mean over the length of the power line?

Your question is not clear? Do you know what the definition of power factor is?

Power factor - Wikipedia, the free encyclopedia
Register to Reply
raju chidurala
Member
Engineering Fields - Electrical Engineering - New Member

Join Date: Aug 2012
Posts: 9
#2
In reply to #1

Re: transmission line parameters

08/18/2012 11:10 AM

i mean that in short ac transmission line due to inductance & resistance voltage drop occurs,by that we can observe in phasor diagram different power angles at sending end & receiving end
Register to Reply
Tornado
Guru
Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
Posts: 21017
Good Answers: 795
#3

Re: Transmission Line Parameters

08/18/2012 12:59 PM

It might be an interesting question. Maybe the phasor diagram lengths all change in proportion, with no change in angles; or maybe the angles shift a bit too. I don't know the answer, but I suspect any angular changes would be small.

__________________
 In vino veritas; in cervisia carmen; in aqua E. coli.
Register to Reply
nobodysomebody47
Power-User

Join Date: Nov 2011
Posts: 171
Good Answers: 1
#4

Re: Transmission Line Parameters

08/18/2012 2:56 PM

check these about power factor

Power Factor
Register to Reply
Anonymous Poster #1
#5

Re: Transmission Line Parameters

08/18/2012 11:03 PM

no,It is not constant in ac power line transmissoin,because of i^2*R losses and somewhere due to corona losses.
Register to Reply Off Topic (Score 5)
cuba_pete
Guru

Join Date: Dec 2010
Posts: 1895
Good Answers: 44
#6

Re: Transmission Line Parameters

08/21/2012 11:50 AM

It's quite easy to measure power factor through transmission lines...take measurements at your service. Of course, your distribution transformer will have some effect, so it makes the line PF almost irrelevant.

PF is more relevant to your service provider, in an event.

Nothing is "constant" in any part of an AC transmission system.
Register to Reply
Register to Reply
Have a Different Question?
6 comments
Copy to Clipboard

Users who posted comments:

Anonymous Poster (1); cuba_pete (1); lyn (1); nobodysomebody47 (1); raju chidurala (1); Tornado (1)

Previous in Forum: Problem in DC Motor   Next in Forum: Building a Regenerative Capable Bicycle

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Electrical Engineering:
Go

CR4 Sections
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 (81 right now)
Show Members
Advertisement