Previous in Forum: Installing 50 Hz 200 KVA 3 KV transformer in 60 Hz system   Next in Forum: Short Circuit / Coordination Study
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
EV1guy2004
Power-User
Hobbies - Target Shooting - New Member Hobbies - Model Rocketry - New Member Safety - ESD - New Member

Join Date: Jan 2008
Location: here
Posts: 109
Good Answers: 5

Breaker Trip Curves

02/23/2010 2:50 PM

We have some FPE type NEF breakers (unfortunately) and am looking for the thermal and instantaneous trip curves for these breakers. Any help is appreciated

Thanks,

Ev1guy
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!
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
#1

Re: Breaker Trip Curves

02/23/2010 7:30 PM

There doesn't seem to be a great deal of information available (and the Federal Pacific / FPC website had nothing). Found the following link to some curves thou.

http://www.electricalmanuals.net/index.php?/Manuals/Low-Voltage-Equipment/BREAKERS/FPE/NEF/

__________________
 jack of all trades
Register to Reply Score 1 for Good Answer
No more "Almost" Good Answers.
EV1guy2004
Power-User
Hobbies - Target Shooting - New Member Hobbies - Model Rocketry - New Member Safety - ESD - New Member

Join Date: Jan 2008
Location: here
Posts: 109
Good Answers: 5
#2
In reply to #1

Re: Breaker Trip Curves

02/24/2010 1:30 AM

I know, it is hard to find info, I was going to use UL's 489, standard breaker testing.

Unfortunately, I work for the government and we still use cold war electrical systems, but only in some places.

Thanks for the start.
Register to Reply
Register to Reply
Have a Different Question?
2 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!

Previous in Forum: Installing 50 Hz 200 KVA 3 KV transformer in 60 Hz system   Next in Forum: Short Circuit / Coordination Study

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 (70 right now)
Show Members
Advertisement