ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
"Esoteric" countries and their wiring practices?
by Texas_Ranger. 04/20/19 07:00 PM
Norwegian power?
by Texas_Ranger. 04/20/19 06:27 PM
Welded Copper Connections
by gfretwell. 04/19/19 04:46 PM
Israel
by annemarie1. 04/18/19 02:35 PM
Water heater calculationsSo when I count calculati
by watersparkfalls. 04/13/19 12:43 PM
New in the Gallery:
What is this for?
Plug terminals
Who's Online Now
1 registered members (Scott35), 8 guests, and 8 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
V.F.D. Isolation Transformers& Line Reactors #49452
03/07/05 05:07 PM
03/07/05 05:07 PM
Y
Yoopersup  Offline OP
Member
Joined: Mar 2003
Posts: 849
Michigan
Anyone have much experience with either of theses, With V.F.D.s

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


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

Re: V.F.D. Isolation Transformers& Line Reactors #49455
03/08/05 10:30 AM
03/08/05 10:30 AM
J
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.


Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
HCE727
HCE727
Delaware County, PA, USA
Posts: 186
Joined: November 2005
Show All Member Profiles 
Top Posters(30 Days)
Popular Topics(Views)
254,533 Are you busy
190,770 Re: Forum
180,493 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.016s Queries: 14 (0.004s) Memory: 0.9592 MB (Peak: 1.0909 MB) Zlib enabled. Server Time: 2019-04-22 20:21:32 UTC