Previous in Forum: Wave Trap   Next in Forum: 2400W Generator Fails to Start Shop Floor Tools
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
4 comments
Rate Comments: Nested
kwoznia1
Commentator

Join Date: Sep 2009
Posts: 99

BIL Calculation

01/27/2011 11:12 AM

Morning all,

So i need a 150KVA 1ph 7.7kV/120/240V TX. Preferably pad mount :D

I am talking to the supplier and she asked me for the BIL , i know this is the insulating rating with respects to surges and more specifically in my case, lightning strikes on the system.

Who governs this, I suppose IEEE but cannot find any documentation & standards or procedure for calculations.

Lost in the cubicle!
Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

"Almost" Good Answers:

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: BIL Calculation

01/27/2011 1:39 PM

Only Uncle sridhar can help you.
Register to Reply Score 1 for Off Topic
kwoznia1
Commentator

Join Date: Sep 2009
Posts: 99
#2
In reply to #1

Re: BIL Calculation

01/27/2011 2:08 PM

wierdo
Register to Reply Off Topic (Score 5)
PeterT
Guru

Join Date: May 2010
Location: Liverpool, NY
Posts: 961
Good Answers: 131
#3

Re: BIL Calculation

01/27/2011 2:24 PM

Standard BIL ratings for 15kV-class equipment are 95kV and 110kV BIL. The BIL value is a reference insulation value expressed in terms of the crest value of a "standard" lightning impulse. So what you choose will to some degree depend on how good your lightning protection is, and how exposed the transformer is to lightning. Distribution transformers (pole-top cans) at that voltage are commonly 95kV BIL.

This is a good post, on another electrical forum:

http://www.eng-tips.com/viewthread.cfm?qid=124184

__________________
 To get the right answers, first you need to ask the right questions.
Register to Reply Score 1 for Good Answer
No more "Almost" Good Answers.
kwoznia1
Commentator

Join Date: Sep 2009
Posts: 99
#4
In reply to #3

Re: BIL Calculation

01/27/2011 2:57 PM

Thank you Sir, I am speaking to some sales/supplier to get a better idea.
Register to Reply
Register to Reply
Have a Different Question?
4 comments

"Almost" Good Answers:

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

Users who posted comments:

Anonymous Poster (1); kwoznia1 (2); PeterT (1)

Previous in Forum: Wave Trap   Next in Forum: 2400W Generator Fails to Start Shop Floor Tools

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 (59 right now)
Show Members
Advertisement