Any decent meter will have a high input impedance on the Volts setting otherwise it would provide an inaccurate reading. Our customer, who first reported this, is an engineer with a well-known charge controller/inverter company. He used a cheap meter whereas I used a Fluke 87-5. Both had the same r
My first thought is what meter are you using? Some meter will have high
input impedance and give false value
On Tue, Oct 15, 2024 at 1:09 PM rick--- via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:
> Back on the Sol-Ark topic again. We have a customer whose 12kW is
> measuring -195VDC
;>>>>>
>>>>>> There’s no PV on this system. It’s AC coupled to an SMA SB5.0.
>>>>>>
>>>>>> As a test, we turned off the Grid input, Load output, and turned off the
>>>>>> battery breaker. As expected, the hig
CA 93422805-438-5600www.millersolar.comCA Lic. 773985 From: r...@solshineenergy.com [mailto:r...@solshineenergy.com] Sent: Tuesday, October 15, 2024 12:03 PMTo: will...@millersolar.com; RE-wrenchesSubject: Re: [RE-wrenches] Sol-Ark Gen Input William, There’s no PV on this system. It’s AC coupled to
ion that is producing the DC voltage on the Gen
>>>> inputs.
>>>>
>>>> While you are at it, check DC voltages between the Sunny Boy DC inputs to
>>>> ground and between the Sunny Boy Chassis and ground.
>>>>
>>>> Chec
between the Sunny Boy Chassis and ground.
>
>
> Check your GEC, GEC bonding conductor and all of the system EGCs.
>
>
> I would also check the GFDI fuse on the Sunny Boy.
>
>
> William Miller
>
>
> Miller Solar
> 17395 Oak Road, Atascadero, CA 93422
> 805-438-5
PMTo: will...@millersolar.com; RE-wrenchesSubject: Re: [RE-wrenches] Sol-Ark Gen Input William, There’s no PV on this system. It’s AC coupled to an SMA SB5.0. As a test, we turned off the Grid input, Load output, and turned off the battery breaker. As expected, the high voltage DC eventually bled to
shineenergy.com>
> [mailto:r...@solshineenergy.com <mailto:r...@solshineenergy.com>]
> Sent: Tuesday, October 15, 2024 12:03 PM
> To: will...@millersolar.com <mailto:will...@millersolar.com>; RE-wrenches
> Subject: Re: [RE-wrenches] Sol-Ark Gen Input
>
> Will
Oak Road, Atascadero, CA 93422
805-438-5600
www.millersolar.com
CA Lic. 773985
*From:* r...@solshineenergy.com [mailto:r...@solshineenergy.com]
*Sent:* Tuesday, October 15, 2024 12:03 PM
*To:* will...@millersolar.com; RE-wrenches
*Subject:* Re: [RE-wrenches] Sol-Ark Gen Input
William
-wrenches.org
> <mailto:re-wrenches-boun...@lists.re-wrenches.org>] On Behalf Of rick--- via
> RE-wrenches
> Sent: Tuesday, October 15, 2024 11:09 AM
> To: RE-wrenches
> Cc: r...@solshineenergy.com <mailto:r...@solshineenergy.com>
> Subject: [RE-wrenches] Sol-Ark Gen
805-438-5600
www.millersolar.com
CA Lic. 773985
*From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On
Behalf Of *rick--- via RE-wrenches
*Sent:* Tuesday, October 15, 2024 11:09 AM
*To:* RE-wrenches
*Cc:* r...@solshineenergy.com
*Subject:* [RE-wrenches] Sol-Ark Gen Input
Back on the Sol-Ark topic again. We have a customer whose 12kW is measuring
-195VDC to ground from L1 and L2 with the Gen breaker open. L1 to L2 = 0V. I
know the Gen input can be configured as an output, but reading a high DC
voltage to ground is concerning. The generator has never been run. Sys
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