Previous in Forum: Autotransformer Ratio   Next in Forum: Full Load Copper Loss
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
2 comments
Rate Comments: Nested
Anonymous Poster

Clearance in Terminal Box of Motor

07/09/2010 1:12 AM

Could you please inform me about line to line and line to earth clearance in terminal box for HV (6.6kV) motor. Also please inform me the reference standard (IEC/IEEE).

Regards

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

Good Answers:

These comments received enough positive votes to make them "good answers".

"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!
electricalexpert65
Guru

Join Date: Oct 2009
Posts: 2061
Good Answers: 169
#1

Re: Clearance in Terminal Box of Motor

07/09/2010 7:44 AM

3 Inches Phase to Earth and 5 inches Phase to Phase as per BS 116-1952.
Reply Score 1 for Good Answer
No more "Almost" Good Answers.
2
msamad
Guru

Join Date: Feb 2009
Location: Houston, USA
Posts: 946
Good Answers: 244
#2
In reply to #1

Re: Clearance in Terminal Box of Motor

07/09/2010 1:57 PM

For 6.6 to 6.9 kV motors, the minimum distance between the line to line terminals is 6 inches and line terminal to ground is 4 inches.

Reference: NEMA MG 1, Section 4.19.2.2: Terminal Housings for Large AC Motors.

- MS

__________________
 "All my technical advices in this forum must be consulted with and approved by a local registered professional engineer before implementation" - Mohammed Samad (Linkedin Profile: http://www.linkedin.com/in/msamad)
Reply Good Answer (Score 2)
No more Good Answers. Go to first "Almost" Good Answer
Reply to Forum Thread
Have a Different Question?
2 comments

Good Answers:

These comments received enough positive votes to make them "good answers".

"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!

Previous in Forum: Autotransformer Ratio   Next in Forum: Full Load Copper Loss

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 (61 right now)
Show Members
Advertisement