Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > RV SYSTEMS AND TECHNOLOGIES FORUMS > Gear and Product Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 08-07-2017, 05:42 AM   #1
Senior Member
 
Monaco Owners Club
Join Date: Sep 2014
Posts: 4,255
Inverter Generator Edison plug?

I recently bought an inverter generator. While doing my research I read that they have a "floating" neutral. If you use the little tester on the outlets while using the generator it will show an "open ground" fault. Some electronic devices won't work if I'm not mistaken. The fix appears to be an Edison plug. (plug with neutral/ground shorted) You just plug this shorting plug into one of the outlets on the generator and now neutral is bonded to ground.
I'm just wondering if most use this plug and just leave it plugged in? I just know that with it plugged into the generator all of the outlets in the rv test good with the tester.
__________________
1996 Tioga Class C
2007 Monaco Diplomat 40 PDQ
TOAD 2012 Cadillac SRX 4
okcnewbie is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 08-07-2017, 05:52 AM   #2
Senior Member
 
spinroch's Avatar
 
Vintage RV Owners Club
Holiday Rambler Owners Club
Join Date: Aug 2016
Location: Rochester, NY
Posts: 313
I would be very curious to see what device would not function properly with an open ground. In any event, all rv AC distribution panels have an isolated neutral buss. Have you tried your tester in your house? I do not believe that a properly wired system would show a fault like that.
__________________
Steve (spinroch)
1997 Holiday Rambler Vacationer 31'
454 Chevy P30 FROG
spinroch is offline   Reply With Quote
Old 08-07-2017, 06:09 AM   #3
Senior Member
 
Monaco Owners Club
Join Date: Sep 2014
Posts: 4,255
Quote:
Originally Posted by spinroch View Post
..... I do not believe that a properly wired system would show a fault like that.
A very quick google of "inverter generator floating neutral" would show you that this is perfectly normal. Thus my question for other RV'ers and what they are choosing to do.

The tester and my 4 meters all work in my house and in the RV.
__________________
1996 Tioga Class C
2007 Monaco Diplomat 40 PDQ
TOAD 2012 Cadillac SRX 4
okcnewbie is offline   Reply With Quote
Old 08-07-2017, 06:13 AM   #4
Senior Member
 
Monaco Owners Club
Join Date: Sep 2014
Posts: 4,255
Quote:
Originally Posted by spinroch View Post
I would be very curious to see what device would not function properly with an open ground.
I didn't actually say it "had an open ground". The tester shows an open ground fault with inverter style generators.

I believe some/all of the progressive industries protectors will not work without the Edison plug. I don't have one but I've read that on here I'm pretty sure.
__________________
1996 Tioga Class C
2007 Monaco Diplomat 40 PDQ
TOAD 2012 Cadillac SRX 4
okcnewbie is offline   Reply With Quote
Old 08-07-2017, 06:55 AM   #5
Senior Member
 
spinroch's Avatar
 
Vintage RV Owners Club
Holiday Rambler Owners Club
Join Date: Aug 2016
Location: Rochester, NY
Posts: 313
Thus my hesitance to reply to posts is validated. I hope you get the answer you are looking for. I was just trying to help. I will not do that anymore. All the best.
__________________
Steve (spinroch)
1997 Holiday Rambler Vacationer 31'
454 Chevy P30 FROG
spinroch is offline   Reply With Quote
Old 08-07-2017, 07:46 AM   #6
Senior Member
 
Monaco Owners Club
Join Date: Sep 2014
Posts: 4,255
I think you actually added to the discussion.....you should continue to reply. Without your reply and others there would be no need to have this website. I just tried to answer your questions.
__________________
1996 Tioga Class C
2007 Monaco Diplomat 40 PDQ
TOAD 2012 Cadillac SRX 4
okcnewbie is offline   Reply With Quote
Old 08-07-2017, 07:58 AM   #7
Senior Member
 
xrated's Avatar
 
Join Date: Jan 2017
Location: "Murvul", TN
Posts: 1,329
I have a Progressive brand 50 amp EMS hardwired in my Toy Hauler. I installed it on the load side of the transfer switch so that it protects the trailer circuits no matter if they are being fed from shore power OR generator power. I have never used the "Edison" plug as you call it, and everything works just fine, no matter whether it's on generator power or shore power. And yes, the trailer 120 volt grounds and neutrals are not tied together.
__________________
2016 F350 Crew Cab Dually Diesel King Ranch 4x4
2018 Grand Design Momentum 394M Toy Hauler
Excessive Payload Capacity is a Wonderful Thing!
xrated is offline   Reply With Quote
Old 08-07-2017, 08:15 AM   #8
Senior Member
 
Monaco Owners Club
Join Date: Sep 2014
Posts: 4,255
Quote:
Originally Posted by xrated View Post
I have a Progressive brand 50 amp EMS hardwired in my Toy Hauler. I installed it on the load side of the transfer switch so that it protects the trailer circuits no matter if they are being fed from shore power OR generator power. I have never used the "Edison" plug as you call it, and everything works just fine, no matter whether it's on generator power or shore power. And yes, the trailer 120 volt grounds and neutrals are not tied together.
Thank you. Do you have an "inverter" generator? Really this only applies to the this particular style of generator. Until I bought a portable inverter generator I had no idea that inverters and in particular inverter/generators have floating neutral.
__________________
1996 Tioga Class C
2007 Monaco Diplomat 40 PDQ
TOAD 2012 Cadillac SRX 4
okcnewbie is offline   Reply With Quote
Old 08-07-2017, 08:42 AM   #9
Senior Member
 
powercat_ras's Avatar
 
Winnebago Owners Club
Solo Rvers Club
Join Date: May 2015
Posts: 1,585
Permanent mounted generators must have a Neutral - Ground bond per National Electric Code and RVIA standards. This is why fixed generators inside an RV or TT measure zero ohms between Neutral and Ground when Generator is connected to the coach's electrical devices thru a manual or automatic transfer switch.

With a portable generator or inverter, it is permissible to not tie neutral to ground, if GFCI protection of loads is not required.

It is also permissible to tie neutral to ground (some do this including Xantrex), so the only way to tell is to measure resistance in ohms between Neutral and Ground with the generator or neutral output off and see if there is a connection.

One major saftey problem with ground and neutral not connected at the power source is that it prevents Ground Fault Interruptors (GFCI) from working correctly, if there is no path from Ground back to the Neutral somewhere between the load and the power source.

I would bond neutral to ground either internally on the output receptable of the generator or externally with the Edison Plug method if measurement indicates it is currently "floating" neutral.

Finally, it is best practice to connect the Generator or Inverter to Earth Ground and to Vehicle Chassis (if in a RV or vehicle). Once again if power energizes the chassis or the earth (for example worn cord has part of black wire exposed and it contacts chassis or ground) that power has to be able to get back to the Generator or Inverter and it can not if Neutral and Earth Ground are not connected. Does not have to be a great earth ground if GFCI protection is being used, I use a long Gutter nail with a stranded wire brazed to it driven into the ground - connected to the ground on the generator - for this.
__________________
Randy - Manhattan, Kansas
2015 Vista 27N
2020 Ford Escape Hybrid
powercat_ras is online now   Reply With Quote
Old 08-07-2017, 08:58 AM   #10
Senior Member
 
Monaco Owners Club
Join Date: Sep 2014
Posts: 4,255
Thanks for response powercat. In my case (portable inverter generator) would you use the Edison plug and ground the generator to the chassis?
__________________
1996 Tioga Class C
2007 Monaco Diplomat 40 PDQ
TOAD 2012 Cadillac SRX 4
okcnewbie is offline   Reply With Quote
Old 08-07-2017, 12:10 PM   #11
Senior Member
 
Join Date: Mar 2017
Posts: 118
And the answer is here.
http://noshockzone.org/generator
jfoldesi is offline   Reply With Quote
Old 08-07-2017, 12:55 PM   #12
Senior Member
 
Monaco Owners Club
Join Date: Sep 2014
Posts: 4,255
Quote:
Originally Posted by jfoldesi View Post
Thank you! My research pretty much took me straight to Mike Sokol's stuff. He appears to be the expert on "hot skin" conditions and general AC safety when it comes to this stuff.

The inverter generators are becoming more popular so I thought I would see what people are doing. For now I'm leaving my Edison plug installed and not grounding to the chassis. I also carry the pen like Mike suggested and test for hot skin regularly.

The main point seems to be one connection point for neutral/ground connection. ( EX, breaker panel, transfer switch, generator, Edison plug, etc.)
__________________
1996 Tioga Class C
2007 Monaco Diplomat 40 PDQ
TOAD 2012 Cadillac SRX 4
okcnewbie is offline   Reply With Quote
Old 08-07-2017, 01:04 PM   #13
Senior Member
 
jonnyaiks's Avatar
 
Join Date: Jun 2017
Posts: 125
Thanks for asking and answering this question. I never would have thought of this until I'm out there wondering what the heck is going on.
My added question: if I'm just disconnecting the battery and running a battery charger off the inverter generator, then none of this matters? (No connection between generator and RV) I'm sure it's a silly question, but everything's simple until you learn what you don't know....
jonnyaiks is offline   Reply With Quote
Old 08-07-2017, 01:29 PM   #14
Senior Member
 
Monaco Owners Club
Join Date: Sep 2014
Posts: 4,255
Quote:
Originally Posted by jonnyaiks View Post
Thanks for asking and answering this question. I never would have thought of this until I'm out there wondering what the heck is going on.
My added question: if I'm just disconnecting the battery and running a battery charger off the inverter generator, then none of this matters? (No connection between generator and RV) I'm sure it's a silly question, but everything's simple until you learn what you don't know....
I think you're safe. My inverter generator has a DC output but it has to go through a charge controller. When I measured the output it was around 19 volts with no load. The other funny part is I'm not supposed to use the generator at the same time I'm using the DC out..... weird.
__________________
1996 Tioga Class C
2007 Monaco Diplomat 40 PDQ
TOAD 2012 Cadillac SRX 4
okcnewbie is offline   Reply With Quote
Reply

Tags
generator, inverter



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Moochdocking in Edison NJ vsheetz Camping Locations, Plans & Trip Reports 6 05-02-2017 07:19 PM
Edison NJ area - where to stay? vsheetz Camping Locations, Plans & Trip Reports 8 09-25-2016 09:00 PM
Edison New Jersey. Options of where to stay for a week or so? vsheetz Camping Locations, Plans & Trip Reports 2 04-17-2016 07:52 PM
Simple Inverter Hook Up? Plug my 50 amp to the inverter? E Z Livin MH-General Discussions & Problems 7 12-19-2005 02:59 AM
Anyone heading to Edison,NJ RV show this weekend 96PSD Northeast Region 1 10-13-2005 01:51 PM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 09:12 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.