Dan Penoff via Mercedes wrote:
It’s called “reverse current” and the results are usually not very pretty.
Yes that reverse currant is exactly what I need to find out about
and how to divert, control or stop it.
I assume that the inverter on your system has to sync with the utility. That
is, its 60 Hertz waveform has to match the utility’s. If your system sends
power back into the utility, it has to sync with the utility.
Yes it does. It reads the 60cps on the grid and syncs
continuously with it.
In the situation you describe, I suspect that the inverter would never provide
power due to its inability to sync with the generator. The generator’s output
waveform, while it might be relatively stable if it had an isochronous
governor, would not stay i sync with the solar system for any length of time.
As I mentioned previously, if the sources have to be in sync, a generator would
most likely not work with the system or cause it to go offline for protion
purposes.
So the small generators like the Hondas and so on would fluctuate
in the cps more so then the net does. I don't really know how
quickly the solar controller is able to change frequency in order
to keep up with any changes in the net. I didn't think there were
very big fluctuations in all that anyway. Interesting to find
that out.
MG
-D
On Jul 29, 2017, at 9:31 PM, MG via Mercedes <mercedes@okiebenz.com> wrote:
Right in one as far as you took it. The solar controller reads the 60CPS on the
net and starts up. No 60CPS and it stops. Now my question is if the solar is on
the generator side of the ATS and the generator starts which then gives the
60CPS signal to the solar, which now starts and produces all the power it is
capable of given whatever sun there is at the time. If no power is being used
by the house then where does the power produced by the solar go to? It can't go
into the net because that is not connected. The only place it can go is the
generator. What happens then?
What happens when you feed 6KW from one generator into another generator that
is idling? Does the second generator just overheat and burn out or the
electronic controller of it anyway or does it turn into an electric motor and
try to overpower the idling gas or diesel motor and turn it faster?
MG
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