It might be worth checking the brushes if it is an older unit. Chris Worcester
chris@solarwindworks.com530-448-9692Sent from my Samsung Galaxy s9.
Original message From: William Miller
Date: 12/19/20 6:30 PM (GMT-08:00) To: RE-wrenches
Subject: Re: [RE-wrenches] generator
t
Friends:
I have seen THD on the voltage waveform trip GFIs and AFCIs. The case where
this happened was during gen run periods. AC to DC converters can be brutal in
regards to generating distortion and sending it to loads.
I am out in the shop away from the manuals, but check if these FX invert
Hi Ray
I will have to triple check, but even if it’s yes.
How does that explain the time differences?
If it was a neutralground loop, then why not it tripping everything right away?
That’s why I was thinking it’s related to the control board in the generator?
Jay
> On Dec 19, 2020, at 5:10
Jay,
Agree with Ray that two neutral ground bonds can cause strange behavior.
But the timing near the end of the charge cycle makes me wonder if the
issue is related to one inverter shutting down the charger before the
other. The VFX 3648 charger mode is a terrible load and will cause weird
o
The way a GFCI operates is by comparing the line current and the neutral
current inside the device. If some of the neutral current is returning
through a ground circuit instead of the neutral the imbalance will trip the
device. The generator neutral and the inverter neutral must have a common
neu
Is it possible that neutral is bonded to ground in the generator? I've
found lots of multi-bonded neutrals over the years, and had it cause all
sorts of weirdness.
Ray Walters
Remote Solar
303 505-8760
On 12/19/20 5:33 PM, jay wrote:
HI All,
I have a client with a older Kohler 8-10kw genera
HI All,
I have a client with a older Kohler 8-10kw generator, VFX 3648 stacked
inverters, newer rolls batteries. its been installed and operating normally for
10+ years.
Customer had to upgrade the house for code, which involved installing GFCI
outlets and GFCI breakers.
Since then the GFI
Little Nerd Family, that's great. Back on Topic: I'm also in the midst
of trying to care for a Sunny Island setup we inherited a few years
ago. Tump's info is invaluable and also explains why my adopted step
system couldn't keep its AGMs alive for more than 4 years. (curtail
charge rate at 7
William, good morning. I live off grid w/ these things please feel free to
contact me off list.
Without knowing your familiarity w/ the SMASI, I may be repeating things you
already know.
Anytime the SOC is above 70% your frequency is shifted to reduce array input,
(German engineers) so this is p
Wrenches:
I found some time to review the .evt and .log files from the primary Sunny
Island inverter.
Prior to 12/8/20 the system was running normally with a generator run
averaging 6 hours about every other day.
On 12/8 at 06:00 the system tried to start the generator. There was no
indic
10 matches
Mail list logo
