mazo78 Posted January 7, 2019 Share Posted January 7, 2019 HI ALL I HAVE 250 WATTS 12 SOLAR PANLES WHICH SOLAR PANELS SETTINGS IS BEST FOR INVERTER ? 12 PANELS SERIES OR 6+6 STRINGS ? THANX ADV Quote Link to comment Share on other sites More sharing options...
SilverNodashi Posted January 8, 2019 Share Posted January 8, 2019 16 hours ago, Robert van den Berg said: From your manual..... http://inverexcustomercare.com/wp-content/uploads/2018/06/APT-Axpert-VM-III-3.2-5.2KW_manual-20180122.pdf your 1st option best one....you need to watch Max. PV Array Open Circuit Voltage 250W panels have a Voc of about 38V so 12 of them in series will be about 456V. @mazo78 which brand 250W modules do you have? Or can you take a screenshot of the label at the back? @mazo78 Quote Link to comment Share on other sites More sharing options...
mazo78 Posted January 8, 2019 Author Share Posted January 8, 2019 i have 6 panels Q cell and 6 panels sun we Quote Link to comment Share on other sites More sharing options...
SilverNodashi Posted January 8, 2019 Share Posted January 8, 2019 44 minutes ago, mazo78 said: i have 6 panels Q cell and 6 panels sun we I see their voltage rating are the same so you can keep them in series. Since their amperage ratings are slightly different, if you were to run two strings in parallel, the whole PV array would run at the lower amperage. Quote Link to comment Share on other sites More sharing options...
Gabriel_2018 Posted January 8, 2019 Share Posted January 8, 2019 1 hour ago, SilverNodashi said: I see their voltage rating are the same so you can keep them in series. Since their amperage ratings are slightly different, if you were to run two strings in parallel, the whole PV array would run at the lower amperage. I think it is the oppsite? Isn´t it? Quote Link to comment Share on other sites More sharing options...
SilverNodashi Posted January 8, 2019 Share Posted January 8, 2019 52 minutes ago, Javi Martínez said: I think it is the oppsite? Isn´t it? Yes, you're right. In a series string it takes the lower current. In parallel you simply add the amperes together Quote Link to comment Share on other sites More sharing options...
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