Generators and Motors
[Home] - [HELP] - [Forums] - [Library] - [Photo Gallery] - [Groups] - [Classified Ads] - [Subscribe] - [Links] - [Books] - [Sponsors] -

Go Back   SmokStak > SmokStak® Vintage Electrical Equipment > Generators & Electric Motors General Discussion
Forgot Password? Join Us!

Notices

Generators & Electric Motors General Discussion Antique Generators and Old Electric Motors: Questions and answers about restoring and showing old power generation systems.

Generators & Electric Motors General Discussion

Generator neutral ground bonding?


this thread has 16 replies and has been viewed 873 times

Reply
 
Thread Tools Display Modes
  #11  
Old 11-18-2018, 08:29:49 PM
Newoldstock Newoldstock is offline
Registered-III
 
Join Date: Dec 2013
Location: Toronto, Canada
Posts: 1,638
Thanks: 660
Thanked 783 Times in 423 Posts
Default Re: Generator neutral ground bonding?

Quote:
Originally Posted by Railroads View Post
Transfer switch does not switch neutral or ground. Only live conductors are switched.

In practice I have no control over the neutral-ground bonding on the supply coming in. The combined meter box/main disconnect is the point of this connection. Anything beyond that box is my problem. Thus the trailers box which is the sub panel in this case.

The old Reliance transfer switch just switches live conductors.

Robert
That is not the case in all places...
Ontario forces you to switch the common if you are Bonded at the generator frame.
Reply With Quote
Sponsored Links
  #12  
Old 11-18-2018, 08:39:40 PM
Railroads Railroads is offline
Registered-III
 
Join Date: Sep 2013
Location: North Carolina, USA
Posts: 1,439
Thanks: 963
Thanked 1,112 Times in 461 Posts
Default Re: Generator neutral ground bonding?

I've read that before. I'm just saying that my transfer switch does not switch neutral or ground.


Quote:
Originally Posted by armandh View Post
Assuming that the transfer panel also transfers the neutral
I would convert the Coleman to 4 wire if possible or
if there are no 240 volt loads use two 120 volt plugs to feed a 4 wire socket
this assumes 240 volt between the hot legs of the duplex outlet.
it doubled up neutrals and grounds but they are separate back to the bonding point

the problem is a 240 volt load would bring the 120 back to a possible un-pluged live prong
Not easy to do without cutting up the plastic end bell or finding a replacement with the correct round hole for the L14-20 plug. I am reluctant to make a mess of the end bell.

I don't want to end up with something stupid looking like this. https://members.rennlist.com/warren/coleman4.jpg

From source https://members.rennlist.com/warren/gt5000c.html

Right now the Coleman is retired to secondary status. In the event of using it I would just run heavy extension cords through the window.

Robert
Reply With Quote
  #13  
Old 11-18-2018, 09:03:53 PM
armandh armandh is offline
Sponsor
 
Join Date: Aug 2006
Location: Suburban St. Louis, Missouri
Posts: 2,995
Thanks: 260
Thanked 793 Times in 617 Posts
Default Re: Generator neutral ground bonding?

an evaluation of the generator may reveal that removing the generators bond is possible.
In some cases involving auto flashing it may be difficult.
so far I am 2 for 2 where there was no connection between the output and engine 12V
[other than the bond]
__________________
.
by using this free advise, you, your heirs, etc
absolve, save, and hold harmless the advisor.
CAVEAT EMPTOR
YMMV
Reply With Quote
  #14  
Old 11-18-2018, 09:11:07 PM
Railroads Railroads is offline
Registered-III
 
Join Date: Sep 2013
Location: North Carolina, USA
Posts: 1,439
Thanks: 963
Thanked 1,112 Times in 461 Posts
Default Re: Generator neutral ground bonding?

The bonding in the Coleman is easy to remove. The bonding is at the 120v outlets.

Robert
Reply With Quote
The Following User Says Thank You to Railroads For This Post:
  #15  
Old 11-19-2018, 11:33:27 AM
Newoldstock Newoldstock is offline
Registered-III
 
Join Date: Dec 2013
Location: Toronto, Canada
Posts: 1,638
Thanks: 660
Thanked 783 Times in 423 Posts
Default Re: Generator neutral ground bonding?

Its been a long time since i opened up one of these but as Rob said its very likely that lifting the bond is easy...

Most of the time its obvious where it was done to make you life easier.
Reply With Quote
  #16  
Old 11-20-2018, 05:42:21 PM
armandh armandh is offline
Sponsor
 
Join Date: Aug 2006
Location: Suburban St. Louis, Missouri
Posts: 2,995
Thanks: 260
Thanked 793 Times in 617 Posts
Default Re: Generator neutral ground bonding?

but at that point a 3 prong 240 volt socket is 2 hot and a ground with no neutral
best to use a 4 prong outlet even if not the beauty high point.
__________________
.
by using this free advise, you, your heirs, etc
absolve, save, and hold harmless the advisor.
CAVEAT EMPTOR
YMMV
Reply With Quote
The Following 2 Users Say Thank You to armandh For This Post:
  #17  
Old 11-20-2018, 06:28:16 PM
turtmaster turtmaster is offline
Registered-I
 
Join Date: Jun 2015
Location: Hortonville, Wisconsin
Posts: 488
Thanks: 463
Thanked 213 Times in 140 Posts
Default Re: Generator neutral ground bonding?

Armandh, thanks for mentioning the "no neutral" problem, I was going to say that, as I used to have a Coleman generator with the 6-20 duplex outlet
Reply With Quote
Reply

Bookmarks


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

F o r u m Jump

Similar Threads Chosen at Random
Thread Thread Starter F o r u m Replies Last Post
Onan DKD Neutral Bonding Required? Nazrat Onan Generators 10 04-04-2014 07:05:16 PM
Ground roof top antenna to neutral-ground of power line? sdowney717 Generators & Electric Motors General Discussion 43 12-12-2013 09:38:09 PM
New Portable Generator "system ground is not connected to AC Neutral" Shawn MacAnanny Generators & Electric Motors General Discussion 4 04-28-2013 12:49:19 AM
Neutral conductor grounding (bonding) question amphi Generators & Electric Motors General Discussion 14 10-02-2010 01:36:00 PM
Looking for a way to switch the neutral bonding D. Marcellus Onan Generators 15 02-15-2006 07:34:36 AM


Use "Ctrl" mouse wheel to change screen size.
All times are GMT -4. The time now is 07:22:16 PM.

Smokstak and Enginads site search!


All use is subject to our TERMS OF SERVICE
SMOKSTAK® is a Registered Trade Mark - A Community of Antique Engine Enthusiasts
Copyright © 2000 - 2016 by Harry Matthews P.O. Box 5612 - Sarasota, FL 34277