Like I suggested, it does require attention... better be safe than sorry...but I do enjoy your style Steve...BTW..as soon as wife makes Tamales I will send you a dozen ..
Jaime Solorza On Aug 2, 2017 7:36 PM, "Chuck McCown" <ch...@wbmfg.com> wrote: > GFI simply looks at the current going out on the hot wire and the current > coming back on the neutral. If the currents are not identical, the little > transformer they pass through creates an output voltage that trips the > unit. The transformer is wired such that the two currents cancel each > other. So when they are the same, they totally and perfectly cancel. If > more current is on the hot than the neutral (or the unlikely situation > where there is more on neutral than hot) it trips.. > > If it is tripping, somewhere current is leaking out of the circuit and > returning via earth ground. You can always put an isolation transformer on > the output which will stop the tripping and make it safe at the same time. > Best to fix the leakage. > > *From:* Steve Jones > *Sent:* Wednesday, August 02, 2017 7:29 PM > *To:* af@afmug.com > *Subject:* Re: [AFMUG] Gfi kicking on portable generator > > I dont know what actually is happening when a leg is out at a grain > elevator that drops to the 60-80, something at the transformer i assume. > This is the site i went to swap a ptp500 to a 650 last week and broke > their manlift, this site and i have.... history, will probably be where i > die, i made it my bitch once and had to climb up in an ice storm with two > inches of ice on everything, 6 inch horizontal icicles, still got that up > and running wearing khakis and a jacket. > Ever since i took its manhood, that place has treated me like its a psycho > ex wife. > > Ill rewire the cutover switch in the morning when the power company gets > it fixed up. > > I do have to have a solution for knucklehead techs though, i think i could > have achieved the same thing with a two prong adapter. Just dont want to > deal with osha and paperwork if i play croakamope with a tech picking up a > generator > > On Aug 2, 2017 8:14 PM, "George Skorup" <george.sko...@cbcast.com> wrote: > >> I see 60-80VAC at grain sites all the time when a phase is out. Pain in >> the ass. The GFI recept on the gen could just be going bad. Could also be >> something as simple as noise/surge suppression in your UPS causing it. I >> wouldn't worry about it. >> >> On 8/2/2017 7:12 PM, Steve Jones wrote: >> >> Millivolts not amps >> >> On Aug 2, 2017 7:08 PM, "Steve Jones" <thatoneguyst...@gmail.com> wrote: >> >>> Milliamps. But its a brownout/power outage >>> >>> On Aug 2, 2017 6:57 PM, "Jaime Solorza" <losguyswirel...@gmail.com> >>> wrote: >>> >>> Did it read zero? If not , have that checked...we spent all morning with >>> engineers, electricians and us chasing a weird diesel generator to UPS >>> issue...Fluke meters galore... >>> >>> Jaime Solorza >>> >>> On Aug 2, 2017 5:51 PM, "Steve Jones" <thatoneguyst...@gmail.com> wrote: >>> >>>> At a grain elevator right now, brownout type issue, 60v some places >>>> none at others. Not our chair, not our problem, except our portable >>>> generator gfi trips every time the cutover switch engages. >>>> We ended up just bypassing the cutover and only wiring phase and >>>> neutral to the generator outlet, leaving ground disconnected. I suppose we >>>> could have left everything intact and disconnected ground from the panel, i >>>> dont know >>>> >>>> But what we have now is phase and neutral on generator feeding the >>>> outlet up top, the ground is still connected to the service ground up top. >>>> We dont have access to a panel its connected at >>>> >>>> I did measure between the ground at the panel and a known good earth >>>> ground. No voltage, i assume that means no hot ground. >>>> >>>> The concern here is if im missing something and the gfi is kicking >>>> because of something i dont have capacity to verify, is running this >>>> generator this way a risk of electrocuting somebody who touches the frame? >>>> >>>> Its ground is not connected in the circuit, same as if id just >>>> connected a 2 prong adapter >>>> >>>> >>> >>> >> >>
