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Solar pv batteries distance to CU
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<blockquote data-quote="revor" data-source="post: 519081" data-attributes="member: 23254"><p>Thanks for the things to try. One thought I had was to swap the strings around that would be easy to do. Today been a dullish day brightening up later on. Battery was charging slowly got past the 80% and nothing happening but washing machine was running at about this time. When it got to 94% started seeing the issue so measured volts going into inverter on string 2 and it goes up to about 330V from about 280 when it happens. If monitoring volts on the inverter you can see it happening there as well. Generating about 5.5 Kw when sun came out most going to grid battery volts about 60.2 charging at about 1kw decides to discharge at about .2/.3 kw but what was strange the system wanted to push juice into the house at around 1KW there was nothing on to draw the load but it kept fluctuating between 0.3 the normal background load and 1Kw. When got around to putting the immersion on it had settled down but sun had gone behind clouds as well.</p><p></p><p>The spec sheet for the inverter includes this bit appended showing there is a difference between the 2 MPPT's which I do not understand the significance of but could be the explanation and along the lines you are thinking.</p><p></p><p>[ATTACH]11577[/ATTACH]</p></blockquote><p></p>
[QUOTE="revor, post: 519081, member: 23254"] Thanks for the things to try. One thought I had was to swap the strings around that would be easy to do. Today been a dullish day brightening up later on. Battery was charging slowly got past the 80% and nothing happening but washing machine was running at about this time. When it got to 94% started seeing the issue so measured volts going into inverter on string 2 and it goes up to about 330V from about 280 when it happens. If monitoring volts on the inverter you can see it happening there as well. Generating about 5.5 Kw when sun came out most going to grid battery volts about 60.2 charging at about 1kw decides to discharge at about .2/.3 kw but what was strange the system wanted to push juice into the house at around 1KW there was nothing on to draw the load but it kept fluctuating between 0.3 the normal background load and 1Kw. When got around to putting the immersion on it had settled down but sun had gone behind clouds as well. The spec sheet for the inverter includes this bit appended showing there is a difference between the 2 MPPT's which I do not understand the significance of but could be the explanation and along the lines you are thinking. [ATTACH]11577._xfImport[/ATTACH] [/QUOTE]
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