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I am getting a new Generac XG8000E generator, it will have a grounded Neutral. I will be using it in a 4 wire 30A unswitched ground and neutral circuit to my house panel through a disconnect switch. I need to know how to make it a floating neutral Generator. I have no wiring schematic for the winding.

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  • NikolaTesla
    NikolaTesla Dec 28, 2012

    I know there is 2 white wires at the brushless alternator which go to the frame. The generator is connected for use out in the field "Grounded Neutral", I need to change it from grounded neutral to floating neutral for residential use. I will mark it "Floating Neutral" since it will be using the house neutral and ground instead through a 4 wire connection. I will need to trace each half of the winding to ground so I can isolate the neutral center tap from the 2 pole winding. I have the electrical knowledge to accomplish the task at hand, just going over the details ahead of time.

  • NikolaTesla
    NikolaTesla Nov 09, 2013

    *** Update ***

  • NikolaTesla
    NikolaTesla Nov 09, 2013

    *** Update *** Shortly after receiving my generator I fixed the neutral problem very easily. To make it floater and use the house neutral, simply remove the 2 white wires located at the terminal end of the generator from the frame and bug them together, (insulate the connection with rubber lineman's tape and wrap over with electrical tape). Use a 120 volt outlet tester to test output at outlet on generator, It will show open neutral. Once plugged into the house with 4 conductor cable it will use the bonded neutral from the house electrical panel. To make it safe for portable use, make a dummy plug with the ground and neutral connected, now when you use the plug it will bond the neutral to ground making it a bonded neutral generator once again. Works great I researched and found this on the Internet and I tested it with my meters and load tested the generator and it works. When using as a portable follow manufacturers instructions to use a grounding rod at the generator.

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You may want to keep these manuals handy for future questions.


0H4099 EV C/PNL 410 XG PORTABLE 6.5KW0H5145 WD SD 8.0KW XG ES 0J1587A EV XG8000ES 49ST 0J2873 EV XG8E 410CC 0J4651 MANUAL LOWES XG8000E 0J3335A WARRANTY STATEMENT EMSN E1 P3

Posted on Feb 13, 2018

Testimonial: "Thanks for the info all is good!!"

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6ya6ya

6ya staff

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SOURCE:

Hi there,
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Posted on Jan 02, 2017

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ashburton

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SOURCE: 200 amp grounding

First check that you have good continuity on the earth conductor from the 200A switch to the grounding rod and that the connections are tight. Beware any live connectios.

If this is o.k check the condition of the ground rod as best you can looking for any corrosion of the rod.

If this loks o.k you may need to get the impedance (ohms) of the ground connection checked and compare this to the level recommended by the heater/generator supplier.

In the worst case you might need a new ground cable and rod(s) to get the required level.

Hope this will FIxYa.

Please remember to rate this solution

Posted on Dec 09, 2008

protek480

Craig Butler

  • 1730 Answers

SOURCE: Installing load panel & inlet box

The bigger lugs will tighten just fine. Go that route and it will be easy to upgrade! If it seems way large when you put the wire in, strip the wire back and double it over. The # 6 may be a bit big for the 30 amp lugs. 30 amp circuit is usually # 10.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/craig_3fa289bf857b1a3c

Posted on Sep 08, 2009

Anonymous

  • 1 Answer

SOURCE: i have a yamaha 3000isb generator. checking

That sucks! Maybe it's because your a fireman! LOL

Posted on May 08, 2010

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The four wire 220 twist lock receptacle Two hot wires, one neutral, and a safety ground. Depending on your generators setup the neutral and ground are bonded as one; unless, it setup for a floating neutral.
You would normally connect the two hots and neutral. and leave the ground open on the four prong twist lock plug. Just make sure the compressor is earth grounded on its end.

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I need to know exactly what wire to disconnect on my wh6000s portable generator to float the neutral so i can hook up to home panel with interlock switch. I will ne using the 30 amp 25 ft. cord into a


You need to have the wiring diagram for the generator but they didn't include one in the owners manual and nothing is shown the IPLs that I found.

DISCLAIMER NOTE: The following should be done only by knowledgeable service personal trained in area of servicing these portable generators. The information is what service personal needs to know in order to unbond the neutral and chassis ground. If done incorrectly you will put yourself and others in danger of electrocution.

To determine if your generator uses a floating or bonded neutral perform this simple test. With the engine off, use an ohm meter between the chassis ground and neutral conductors in the outlet. If it indicates open circuit, the neutral is floating. A short circuit will indicate neutral bonded to ground. I don't recommend doing this to household circuits due to the possibility of exposed AC and damage to the meter.

The jumper from ground to neutral, likely on one or both the 120VAC duplex outlets that needs to be removed. Connect ground connections on both outlets to the chassis ground and ground the generator chassis and frame to earth ground.

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How do I disconnect neutral bond on a dewalt generator


Please be careful, you need a neutral bond for the GFI outlets to work when you are using the generator as a mobile unit and grounding the generator with a ground rod or building. When you are merging with a building with a grounded system, simply remove the two neutral wires (White) at the generators internal terminals from the generator frame but keep them connected together and terminate connection.

Bonding on a generator questions


Q. If I was to keep the tie between ground and neutral in the generator during standby use, would I have to break the neutral tie coming into home from grid?



A. Never disconnect the neutral line as it enters your house. It is held very well at ground potential. Each transformer is grounded, and every home supplies ground as well. The neutral coming in is the reference to both live lines, and without it, anything connected to either live line could see up to 240VAC depending on what is across the other side. Install a proper transfer panel, and the neutral issue will be taken care of.

Q. Where would I ground the generator at this time in this situation?



A. The generator will be grounded through the extension cord plugging into the transfer panel. Your home should have one ground connection only, adding a ground rod at the generator could create other unwanted safety issues.

Q. At this time is it safe to run an extension cord off generator direct to power a drill for example?



A. Yes. The transfer panel will take care of any neutral and ground bonding issues, provided things are wired correctly.

Q. If I was to lift the neutral to ground in generator and tag generator as floating neutral, then would I leave neutral unbroken in service panel?



A. Yes. The common point for neutral and ground will be provided in the main electrical panel.

Q. Could I use the 15 amp outlets on generator safely in this position to run a drill outside? I see generators with floating neutral have a 15 amp duplex outlet on cabinet also. In this situation would I install a ground at the generator?



A. If you were connected to the house with the four conductor extension cord nothing else will be needed.

Q. If you have a floating neutral generator and use it in a stand alone mode, nothing to do with a home, do you place a ground rod down? What happens with the neutral and ground connections? What about a generator on a truck or trailer?



A. In stand alone use, you should connect to a ground rod. Neutral and ground should also be bonded in the generator. The easiest way to take care of this is with a dummy plug inserted into one of the duplex outlets or the twistlock outlet. Jumper ground and neutral in the plug. A generator on a truck or trailer will follow the same rules for neutral and ground bonding, ground rods, etc.

Q. If the generator is a grounded neutral type and you only run the two live lines to the house in an illegal back feed situation where main disconnect is off but neutral still connected will I have 120 volts available in house between each hot leg and the utility grid system neutral? Would someone get shocked if standing next to generator at that time and touched it creating a path from ground to the generator?



A. The only time I would consider backfeeding a house is if the main lines were torn down and laying on the ground. I did this once after Hurricane Juan caused a tree to tear the lines off a neighbors house. The lines were still connected at the pole and were live once commercial power was restored, but there was no possibility of the generator backfeeding to the street. It took almost two weeks before the power company could get them reconnected. We still turned off the main breaker and installed a padlock to prevent it from being turned back on. The house was totally isolated from the grid so I felt it safe to connect in this manner. The generator connected via a 20 amp two pole breaker in the main panel, and there was power available for everything in the house - well pump, electric stove, all lights, etc. Generator neutral was floating as described above. Power supply was limited, they were careful not to overload and trip the generator breaker.

Q. At the same time I went to a friends home and after killing the main breaker and all 240 breakers ran a 3 wire cord from the generator 240 volt outlet direct to his pump, now isolated from the house panel using both 120 volt lines and ground. I then ran a 12 gauge 20 amp extension cord from the generator duplex outlet to a double male pig tail and back fed a kitchen outlet so he could have lights in the house. 1/2 the house to be exact. This was also a grounded neutral generator but we didn't have a problem. I did however drive a ground rod at the generator.



A. I think you were lucky this time. Electricity can be potentially dangerous and can kill and burn if not used correctly. Double male plugs should never be used as invariably there is exposed 120V on one end. If you miswire one end you can send 120V onto the neutral. At best this will trip a circuit breaker, but not knowing what else is done, could easily create a lethal voltage on the chassis of certain equipment. It gets back to doing something properly or not doing it at all. Why run the risk of personal injury or death?

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It is your responsibility
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If you have wired in any of these methods already, it could be that the switch for the fixture has failed, and should be replaced with a like-type switch.

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