MEP-003 , Ground fault Receptacle Installation ?

[Kahles56]

To start with I was testing my convenience receptacle today and my Jiffy Diffie home receptacle tester informed me I had a HOT/NEU Reversal. SO I went in and changed the configuration . Tested again and got the same results.
So now I would like to install a GFCI in place of the modern 3 plug receptacle.

1. Can It Be Done on this Generator?
2, Would I be correct in Installing the GFCI with The lead going from J14 to (S6 Pin L3 ) to the Brass side of the receptacle ,,, with the other lead from (S6/ pole 6) going /coming from L0 to the white /silver screw and then installing a ground strap from the Receptacle to the Cabinet.

The Jiffy Diffie tester has me confused on install.

Thanks In advance.
Ken

 

[DD58]

Was the set grounded when testing?


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[Kahles56]

Was the set grounded when testing?


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Got your reply, checked grounding, Not tight but not loose.
Going to clean up grounding stud later this afternoon and recheck with the plug tester.
Hope it is something as easy as grounding.

Would still like a conformation on GFCI installation or do I just need to abandon receptacle?

 

[Ray70]

Perhaps you should further explain your setup?
Is this a stand alone setup or connected to your house panel?
Are the neutral and chassis ground still bonded together at the ground lug on the lower frame?
Is it grounded with a dedicated grounding rod, or grounded back through your home breaker panel?

 

[Ray70]

Right now there's no reason to abandon the outlet just yet and seeing that the 802 /803 sets use a GFCI breaker, I'm willing to be it will work on an 002/003 as well. We just need to see if you have a wiring issue first.

 

[DD58]

Pictures are worth a thousand words. Also where are you reversing the wires? At the gfci or deeper in the genset?
Also more info on your entire setup would be good too.
It’s not a big deal on the convenience receptacle. As long as your lugs are wire correctly to you sub panel.


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[Guyfang]

Of course it will work with your set. TB5-4 and TB5-6 are the 120 VAC input. This is a picture of a MEP-802 or MEP-803 gen set schematic.


This is the MEP-002 and MEP-003 schematic. Look at J14. Why would it not work?

 

[Kahles56]

The unit is set up as a stand alone generator ,
neutral is bonded at frame.. Ground in place 8ft from genset and wire has continuity to genset.
Generator is not attached to house in any way.

I pulled the three prong receptacle out today and rechecked the wiring to assure that the wiring was coming from the correct lugs in the transfer cabinet.
Checked the X6812 wire for continuity to ground. I have continuity to ground on this wire. this should be the the equivalent of the neutral in a house.
Checked the X3812 wire through the CB3 and had continuity on this wire, this wire is the equivalent of the hot leg in a house.
Checked the Frame , top and side cabinet to frame ground , Motor ground and had less than .1 ohm of resistance on whole unit to bonded ground lug.

I picked up a GFCI and Installed per directions after filing the opening a little to allow the GFCI to fit.
Installed a ground strap from GFCI ground to back of CB3 fixture strap and cabinet and tested Ground. Ground checked
Started Gen set up, ground fault tested and operational.
Checked CB3 for operation , CB3 works.

Checked the voltages on GFCI ( 121.9V)

Threw Main breaker on Genset and checked voltages on 120/240 single phase , (L1-121.8v, L2-9.98v, L3-121.9v)
I would have thought that L2 would have been 0.0v but need to read up on that , else I have a problem somewhere?


Tested the GFCI for polarity, Tester states that I have a Hot /Neu Rev.
Went inside house and checked the tester on 3 GFCI.s and confirmed that the tester was operational.

Retested the GFCI on self test mode and GFCI is functional.


????????????????? Ideas , thoughts , Am I good to go as in hooking up to house ?