Hmmm. I'll check further. I got this from Maurice Higgins, who put those
homemade parallel cable pictures on the web site. And IIRC, the EU2000
user's manual mentions this...
Then again, PECO's off-peak rate is about 6 cents./kWh, so 5.5 isn't a big
savings. Maybe the gas water heater should be part of a woodstove chimney,
with a draft suction fan at the bottom and 3" galvanized pipe popped into
the flue with the edges unsnapped to lessen liquid creosote corrosion.
I stand corrected. The note on page 14 of the on-line user's manual says
the receptacle grounds are connected to the frame, and the wiring diagram
on page 54 shows that, but I couldn't find any warning not to connect the
rectangular pins to the ground, and Vaughn does this, so it seems OK :-)
Best if the neutral and ground are tied together at one location. The
ground is a saftey item. Neutral is designed to carry the current.
House wiring, the ground and neutral are tied together at the entrance
panel. No where else.
I made no assumptions. I simply took the time to read the manual. As both
I and another poster pointed out, you are reading a leakage voltage because the
ground is not referenced to the hot or neutral. You need to add a load to get a
Correct. Since the ground is attached to the frame that means all the metal
structure around the inverter is tied to that wire.
If a high value resistor were tied between the ground and neutral the
reading to the ground would most likely disappear. Just something to bleed
off the induced voltage. As someone else said they are not tied together in
the generator to avoid a double ground when tied into another system.
It's too cold or I would fire up my generator and see what it reads. This
does bring up an interesting subject in that when an RV is plugged into the
generator the ground is still floating. RVs do not tie their grounds and
return either. Well, not usually. If they do they often can't plug into
many campground systems because the CGs use ground fault detectors. If the
ground and return are tied together some current will flow in both wires
tripping the detector.
I think there may have been such an issue with the early versions of the
inverter generators. Anyhow, page 18 specifically addresses connecting the
generator to a building electrical system. Basically, it just tells you to use
a transfer panel.
Since the neutral is not connected to the ground internally in the
generator (also P. 18) you may measure virtually anything (or nothing) from
either power terminal to ground if you are using a sensitive meter. To see if
that voltage is "real" (and not just a bit of leakage) use an incandescent test
lamp instead of a meter.
For a lot of 'temporary' power sources that are meant to be connected into a
regular utility fed service panel, it is common to leave the 'ground' and
'neutral' separated by the manufacturer. This gives you the most flexible
In some code installations, the ground is tied to the service panel ground,
and the neutral tied just to the panel neutral. And then the two are tied
together in the service panel only. This type of connection allows for
three-conductor transfer switch that switches two 'hots' and the neutral
between grid and emergency power source.
If the local power source has the neutral tied to ground at the
generator/inverter, then when connected to the main service panel you have
two ground-neutral ties (one at source, one at panel) and that's generally a
If the local generator/inverter is meant to be the sole source of power,
then it can have neutral and ground tied at the source.
It all varies with whether the inverter feeds the main panel or a sub-panel,
whether it's the sole power source or there's a transfer switch from grid
With an output that is isolated from the ground, it isn't unusual to read
about 1/2 the voltage output between 'hot' and a ground, but the exact
reading depends on the meter and amount of circuitry. It's really just a
form of 'leakage' and not a 'hard' reading.
OK, so you replied to an existing post, didn't quote anything _and_ changed
the subject, and you expect anyone to know what you're talking about?
fwiw, having a newsreader that does real threading, it's related to Honda
EU2000 generators - but since that was the subject of the message you
replied to, you should know that.
X-No-archive: yes On Fri, 02 Dec 2005 15:33:12 GMT, "Toller"
How to piss people off and turn your trolls to gold, cross posting at
Autobot This Spammers!
(to reply to actual address, dispense the dots before
and after sirname.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.