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-Original Message-
From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On
Behalf Of Bill Loesch
Sent: Tuesday, August 05, 2014 3:41 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] UPS disturbance with SMA Inverters
Hi Mac,
Have you ever tried a
Hi Bill,
I never have tried extending the CT leads, but I have seen that you can in
the manual. I'm sure there is a limit.
On Tue, Aug 5, 2014 at 4:40 AM, Bill Loesch
wrote:
> Hi Mac,
>
> Have you ever tried adding more twisted pair lead length to the current
> sensors? With favorable results
Hi Mac,
Have you ever tried adding more twisted pair lead length to the current
sensors? With favorable results?
Thanks,
Bill Loesch
Solar 1 - Saint Louis Solar
314 631 1094
On 04-Aug-14 4:20 PM, Mac Lewis wrote:
It does require that all of the monitored lines are relatively close
spatiall
I wonder if the UPS is grumbling about high voltage as the inverters
>>> push back current...
>>>
>>> Glenn
>>> --
>>> From: Carl Adams
>>> Sent: 8/4/2014 10:29
>>> To: RE-wrenches
>>> Subject
>
>
> On Mon, Aug 4, 2014 at 1:03 PM, Glenn Burt wrote:
>
>> I wonder if the UPS is grumbling about high voltage as the inverters
>> push back current...
>>
>> Glenn
>> ------
>> From: Carl Adams
>> Sent: 8/4/20
d luck!
Glenn
-Original Message-
From: "Carl Adams"
Sent: 8/4/2014 17:11
To: "RE-wrenches"
Subject: Re: [RE-wrenches] UPS disturbance with SMA Inverters
Bob, Ray, Glenn,
Thanks for the responses. We could cycle through the inverters and see if
it is one, or some
1:03 PM, Glenn Burt wrote:
>
>> I wonder if the UPS is grumbling about high voltage as the inverters
>> push back current...
>>
>> Glenn
>> --------------
>> From: Carl Adams
>> Sent: 8/4/2014 10:29
>> To: RE-wrenches
&g
;
> Glenn
> --
> From: Carl Adams
> Sent: 8/4/2014 10:29
> To: RE-wrenches
> Subject: [RE-wrenches] UPS disturbance with SMA Inverters
>
> Hello Wrenches,
>
> I have a site which is experiencing nuisance disturbance of the computer
> UPS systems at the site.
I wonder if the UPS is grumbling about high voltage as the inverters push back
current...
Glenn
-Original Message-
From: "Carl Adams"
Sent: 8/4/2014 10:29
To: "RE-wrenches"
Subject: [RE-wrenches] UPS disturbance with SMA Inverters
Hello Wrenches,
I
Is it possible that the inverters are raising line voltage high enough
to make the UPS respond by clicking, but not high enough to have them
actually trip? I'm not familiar enough with UPS control structure, but
it might run a quick test (the click) when the voltage gets close to its
high volt
How about disabling one inverter at a time when the disturbances are happening?
That might narrow it down to it being a single inverter.
Through the process of elimination you may be able to find out if it is a
single inverter or a combination of inverters that makes it do it.
It might be a spe
Hello Wrenches,
I have a site which is experiencing nuisance disturbance of the computer
UPS systems at the site. The site owner "suspects" this is due to the PV
system which is a 50 kW system using 6 SMA SunnyBoy inverters. The
nuisance disturbance is a clicking noise in the UPS units. The dis
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