ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
Potseal 10
Admin 5
Recent Posts
Old decora style outlets
by Lostazhell. 04/22/17 07:59 PM
Dimmable LED 2x4 lay in fixtures
by gfretwell. 04/22/17 01:14 PM
Permit Snafus...AHJs and Contractors Jump in
by gfretwell. 04/22/17 01:11 PM
How do you find a good employee?
by HotLine1. 04/22/17 10:44 AM
Electrode boilers question
by SteveFehr. 04/21/17 08:32 AM
New in the Gallery:
SE cable question
Popular Topics(Views)
234,479 Are you busy
169,100 Re: Forum
162,483 Need opinion
Who's Online Now
0 registered members (), 44 guests, and 7 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#49452 - 03/07/05 05:07 PM V.F.D. Isolation Transformers& Line Reactors  
Yoopersup  Offline
Member
Joined: Mar 2003
Posts: 822
Michigan
Anyone have much experience with either of theses, With V.F.D.s


Work Gear for Electricians and the Trades

#49453 - 03/07/05 06:48 PM Re: V.F.D. Isolation Transformers& Line Reactors  
Ron  Offline
Member
Joined: Mar 2002
Posts: 582
White Plains, NY
Generally used to reduce upstream harmonics.


Ron

#49454 - 03/07/05 09:15 PM Re: V.F.D. Isolation Transformers& Line Reactors  
Redsy  Offline
Member
Joined: Mar 2001
Posts: 2,056
Bucks County PA


#49455 - 03/08/05 10:30 AM Re: V.F.D. Isolation Transformers& Line Reactors  
JBD  Offline
Member
Joined: Jul 2001
Posts: 599
WI, USA
Good information at the manufacturer's sites TCI and MTE .

Except for public school jobs where the engineers don't know any better, I almost never see them on the front end of current generation VFDs. I don't know of a single industry in this area that routinely installs them as a preventative measure without doing a power quality study first.

Load reactors are still common, though.



Member Spotlight
HappyElectrician
HappyElectrician
Penn USA
Posts: 31
Joined: December 2011
Show All Member Profiles 
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.012s Queries: 14 (0.003s) Memory: 0.7574 MB (Peak: 0.8887 MB) Zlib enabled. Server Time: 2017-04-23 08:01:19 UTC