[RE-wrenches] Schneider 6048 power output fluctuating widely

Christopher Warfel cwarfel at entech-engineering.com
Sat Jan 24 08:17:41 PST 2015


Thank you, I will see if that is the solution and get back to either 
way.  Chris
On 1/23/2015 3:39 PM, Jarmo.Venalainen at schneider-electric.com wrote:
> Hi:
>
> From your description of the problem and the video, I suspect the 
> problem is due to:
>
> 1. The inverter is exporting very near full power.
> 2. The grid voltage rises which at the same AC current results in 
> larger export power flow above the inverters limit.
> 3. The inverter stops exporting due to reaching its power limit
> 4. The inverter again starts exporting.....
> 5.  Reaches power limit and stops.
> 6.etc.......
>
> I.E. since the inverter is working close to its power limit on a grid 
> with  fluctuating voltage, it goes in and out of max power limit.
>
> One way to test if this is the cause is to reduce the Sell Amps so 
> that you are not operating at the power limit of the inverter.
>
> JARMO
> _____________________________________________________________________________________
> *
> Jarmo Venalainen*  | *Schneider Electric **|  Solar Business*  | 
> *CANADA*  | *Training & Development Specialist - Senior* *
> Phone:* +604-422-2528  | *Fax:* +604-420-1591  | *Mobile:* +604-505-0291 *
> Email:* _jarmo.venalainen at schneider-electric.com_ 
> <mailto:jarmo.venalainen at schneider-electric.com> | 
> *Site:*_www.SEsolar.com_ <http://www.sesolar.com/> | *Address:* 3700 
> Gilmore Way, Burnaby, BC V5G4M1
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>
>
> From: 	Christopher Warfel <cwarfel at entech-engineering.com>
> To: 	re-wrenches at lists.re-wrenches.org,
> Date: 	01/23/2015 12:07 PM
> Subject: 	[RE-wrenches] Schneider 6048 power output fluctuating widely
> Sent by: 	"RE-wrenches" <re-wrenches-bounces at lists.re-wrenches.org>
>
>
> ------------------------------------------------------------------------
>
>
>
> We installed a XW 6048 that has wide power output fluctuations over
> several seconds. Lights flicker, and the inverter squeals. It happens
> multiple times in a minute  The inverter was replaced to no avail.  I
> suspect the local utility's poor line maintenance. When the inverter
> begins to drop off line, the voltage sags from 123 to 117.  This is
> still within normal parameters, so I don't understand why the inverter
> would begin to power down.  Here is a youtube video of it if anyone has
> ever seen this before. Schneider has assisted us several times, but
> cannot find any reason for this happening as a result of their technology.
>
> http://youtu.be/EqMwv44p-lc
>
>
> http://youtu.be/ADaL-gEbj4w
>
>
> Thank you, Chris
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-- 
Christopher Warfel, President
ENTECH Engineering, Inc.
PO Box 871, Block Island, RI 02807
401-466-8978

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