ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals

Topic Options
Rate This Topic
#51241 - 04/26/05 12:10 PM capicator power corrections
elk 45/70 Offline
Junior Member
Registered: 03/20/01
Posts: 2
Loc: Martinsville,In. USA
I have just visited a small wood processing plant that has been losing fixed capicator banks over the last few years. I was not involved in sizing or installing, but there power factor was 83% before and 91% know, there is alot of vfd drives in this plant, any thoughts on this just to help me with my own feeling about the problem. Thanks
Top
Work Gear for Electricians and the Trades
#51242 - 04/26/05 01:02 PM Re: capicator power corrections
Bob Offline
Member
Registered: 02/05/02
Posts: 182
Loc: Mobile, AL, USA
VF drives and capacitors do not go together.
The dirves create harmonics and cause capacitor damage. You can install a harmonic filter that is composed of a reactor and capacitor.It must be tuned to the harmonic frequency to be effective. Suggest you get an engineer involved that is knowledgable of
this type problem. You can order the filters
complete after you determine the proper size.
Edit: Are the capacitors install to improve power factor to reduce utility demand charges?

[This message has been edited by Bob (edited 04-26-2005).]
Top

Member Spotlight
Member Since: 11/17/00
Posts: 2232
New in the Gallery:
SE cable question
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box


Who's Online
0 registered (), 43 Guests and 10 Spiders online.
Key: Admin, Global Mod, Mod
 
New in the Gallery:
SE cable question
 
Top Posters (30 Days)
Admin 47
HotLine1 43
gfretwell 19
Ruben Rocha 12
Trumpy 9
 
Newest Members
KrmtFrg, Stack, Scotto, Freecrowder, clee512

ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals