Previous in Forum: Loss Due to Low Grid Frequency   Next in Forum: Generator Electrical Problem
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
Anonymous Poster #1

Grading Ring for Insulators

12/08/2012 10:50 PM

Only lighting arrestors have grading rings, but remaining insulators,CT's and PT's don't have Grading rings.Why????
Reply
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: Gradingring for insulators.

12/08/2012 11:18 PM

Do some research.

Corona ring - Wikipedia, the free encyclopedia
Reply
electricalexpert65
Guru

Join Date: Oct 2009
Posts: 2061
Good Answers: 169
#2

Re: Gradingring for insulators.

12/08/2012 11:48 PM

Why not? I have used grading rings on all insulator supports of Isolators, CTs, Pts, CVTs, LAs as also on string insulators & suspension insuators, etc.
Reply
ravi142857
Active Contributor

Join Date: Nov 2012
Posts: 17
#3
In reply to #2

Re: Gradingring for insulators.

12/09/2012 2:44 AM

But why it is mandatory for lighting arrestor?
Reply
jack of all trades
Guru
New Zealand - Member - Kiwi Popular Science - Weaponology - New Member Engineering Fields - Power Engineering - New Member Engineering Fields - Electrical Engineering - New Member

Join Date: Sep 2006
Location: Auckland, New Zealand
Posts: 8777
Good Answers: 376
#4
In reply to #3

Re: Gradingring for insulators.

12/09/2012 1:58 PM

It isn't as far as I am aware of. What is the application and voltage levels you are talking about, and what country and standard (US, European, Indian, etc) are you referring to?

Can you provide more information please.

__________________
 jack of all trades
Reply
ravi142857
Active Contributor

Join Date: Nov 2012
Posts: 17
#5
In reply to #4

Re: Gradingring for insulators.

12/10/2012 3:29 AM

132 kV lighting arrestor and indian standards.......
Reply
jack of all trades
Guru
New Zealand - Member - Kiwi Popular Science - Weaponology - New Member Engineering Fields - Power Engineering - New Member Engineering Fields - Electrical Engineering - New Member

Join Date: Sep 2006
Location: Auckland, New Zealand
Posts: 8777
Good Answers: 376
#6
In reply to #5

Re: Gradingring for insulators.

12/10/2012 1:07 PM

Are these examples you have seen on sites or something included in the Indian standards (which I am not to clued up on)?

Someone else here may be able to offer a simple explanation.

__________________
 jack of all trades
Reply
Reply to Forum Thread
Have a Different Question?
6 comments
Copy to Clipboard

Users who posted comments:

electricalexpert65 (1); jack of all trades (2); lyn (1); ravi142857 (2)

Previous in Forum: Loss Due to Low Grid Frequency   Next in Forum: Generator Electrical Problem

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 (104 right now)
Show Members
Advertisement