Generators and powering a house anyone know anything?
Ok, trying to figure out the right place for this, I know there are lots of folks on here with a diverse background so I thought someone might know.
As you may have heard Mich. got hit with High winds on Wed (sustained winds over 50 with gusts up to 65mph) this is the worst outage in Detroit Edison history. Anyhow, we have underground service and rarely lose power so never dealt with a generator. We lost power early on and with high's forcasted of 20F. I decided to buy a generator, so Thur morning I went to a local (higher end) place that still had some, Honda's only but anyhow they had something so I got a Honda EB3000C. Long story shorter, this is deemed a construction site generator so it has its Ground bound to the neutral and has GFCI on the outlets. Since it does cant backfeed house since it to has Ground bound to Neutral (which causes a loop and pops the GCFI instantly) ok so ran an extension cord / split to many things life good, but the furnace, hard wired in. Lucky there is a outlet right at it for the condensor pump. Turned off main, disconnected the ground going back to house. Plugged in generator, pop goes GFCI, I had to disconnect the ground into the furnace so now no ground, but it worked. However if I then add the Fridge or Freezer chest with grounds and the furnace, it would pop. Got some 3 prong to 2 prong adapters for those 2 lines and everything works. But nothing is grounded. But since its all being run of GFCI I feel safe.
So here is my question. To use this generator as a whole house (well 1 leg as its only 110) I can unbind the ground and neutral on the generator (well need to look at wiring and talk to Honda but have read that its doable). But my question is why cant I just not run a ground line. Just feed the load and neutral into the house. all the devices would still have ground lines in house. Hmmm but the house has the neutral to ground bound so would this take some of the load off the neutral and not feed back to generator and as such trip the GFCI?
Not looking at doing anything to current set up for this time, just thinking to be prepared if there is a next time. Everything is running well, now, and wife said this setup works. Just lots of extension cords running around the house.
To restate my questions.
1) Why does having nonground (furnace) and grounded (freezer chest and Ref/Freezer unit) cause the GFCI to go?
2) what is the danger in not having the devices grounded back to Generators GFCI outlet? (I don't think there are any)
3) Could I backfeed house with just the Hot and Neutral?
I am a GM Engineer.
I do not claim to be a GM representative, all of my postings are my own interpretation and personal opinions.
2009 HYDRO REDLINE AUTO
Last edited by Robotech; 03-12-2017 at 09:44 PM.