Previous in Forum: Selection of Cables, Fuses, SFU & Breaker for Motors   Next in Forum: BDV Value
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
Anonymous Poster #1

Selection of Breaker for APFCR panel

02/29/2012 1:16 AM

Hello every one,

In one of my Commercial project I have selected Transformer of 1750 KVA as per the load, for that i have selected 625 KVAR APFCR panel, for this panel i have selected 1200 Amps ACB as main incommer of panel.

I calculated based upon this formula

Breaker= ((output KVAR * 1000)/ ((supply vltg)*sqrt(3)))*1.5

and by thumb rule: kvar x 2 = 1250 Amps

My conclusion is Whether this calculation is correct? and what is the difference between ACCP panel and APFCR panel ?
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: Selection of Breaker for APFCR panel

02/29/2012 9:37 AM

Automatic Power Factor Correction Panel, APFC Panels, Switch ...

If you ever find APFCR panel, let us know.
Reply
mannsyed
Active Contributor

Join Date: Oct 2011
Posts: 20
#2
In reply to #1

Re: Selection of Breaker for APFCR panel

02/29/2012 11:52 PM

What is the difference between ACCP and APFCR panel? where it is used ?
Reply
lyn
Guru

Join Date: Oct 2008
Posts: 42355
Good Answers: 1693
#3
In reply to #2

Re: Selection of Breaker for APFCR panel

03/01/2012 7:19 AM

APFCR(AutomaticPowerFactorControllerRelay)-Digital
Reply
jmueller
Guru

Join Date: Jul 2006
Location: Eastern Kansas USA
Posts: 1503
Good Answers: 128
#4

Re: Selection of Breaker for APFCR panel

03/02/2012 8:46 PM

Friend,

I have not done this, but have two thoughts. First, the manufacturer of the APFCR and its panel would normally specify the size of overcurrent protection they require. Second, it seems to me that a load requiring 625 kVAR for power factor correction on a transformer rated at 1750 kVA is rather heavy on the kVAR rating. Perhaps I am wrong, but that is my "gut feeling". -JMM
Reply
Reply to Forum Thread
Have a Different Question?
4 comments
Copy to Clipboard

Users who posted comments:

jmueller (1); lyn (2); mannsyed (1)

Previous in Forum: Selection of Cables, Fuses, SFU & Breaker for Motors   Next in Forum: BDV Value

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 (165 right now)
Show Members
Advertisement