JESSE:
The Power-One specs lists 160V to 530V as the MPPT working range. It's
possible to set the per MPPT input as low as 120VDC. Power-One does not
provide info for loss of efficiency if the high-temp DC in[put voltage
drops below 160V.
Do you have any info on performance degradation between 120V and 160V?
Regards,
Gary Willett, PE
On 8/28/2012 11:31 AM, mac Lewis wrote:
Power One Inverters will easily string that low. We have used quite a
few of these with no problem. They are ungrounded on the DC side.
On Mon, Aug 27, 2012 at 3:22 PM, Jesse Dahl <dahlso...@gmail.com
<mailto:dahlso...@gmail.com>> wrote:
I think some Solectria inverters have a low number (115vdc). The
Solectrias I have worked with had a max DC voltage of 400vdc though.
Jesse
Sent from my iPhone
On Aug 27, 2012, at 4:13 PM, David Brearley
<david.brear...@solarprofessional.com
<mailto:david.brear...@solarprofessional.com>> wrote:
Off the top of my head...Power-One?
You can download an Excel file with comprehensive string inverter
specs here:
http://solarprofessional.com/webexclusive/
On Aug 27, 2012, at 4:06 PM, William Miller wrote:
Friends:
We have a client that wants to divest of 8 Fronius LG-4500 LV
inverters. They are experiencing a high number of failures.
The Fronius have an unusually low DC input window: 150 to 450
VDC. This means the stringing will result in a lower voltages
than typically found and makes it difficult to substitute
inverters. Does anyone know of any reliable inverter that will
work with string voltages in the low 200s?
Thanks in advance.
William Miller
Miller Solar
Voice :805-438-5600 <tel:805-438-5600>
email: will...@millersolar.com <mailto:will...@millersolar.com>
http://millersolar.com
License No. C-10-773985
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