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Green Renewable Energy Forum
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Type A or Type B RCD/RCBO for solar pv
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<blockquote data-quote="ExArmy" data-source="post: 551571" data-attributes="member: 37620"><p>you don't want to connect the inverter to that RCD if it's shared with other circuits. if the Existing RCD feeds 5 MCB's for example, get rid of the RCD and MCB's and fit 5 RCBO's instead</p><p></p><p>The quote you have in italics comes from a book dating back to 2006, i'm really not sure what it means</p><p>AFAIK most inverter don't have simple transformers that are electrically separated, the are mostly transformer-less now. theres a bit in section 8 of the IET solar CoP (2022) that says if the inverter is transformerless they recommend designing the supply circuit to the inverter so that an RCD isn't required. </p><p>Manufacturers instructions are a good place to look for the specific inverter too</p></blockquote><p></p>
[QUOTE="ExArmy, post: 551571, member: 37620"] you don't want to connect the inverter to that RCD if it's shared with other circuits. if the Existing RCD feeds 5 MCB's for example, get rid of the RCD and MCB's and fit 5 RCBO's instead The quote you have in italics comes from a book dating back to 2006, i'm really not sure what it means AFAIK most inverter don't have simple transformers that are electrically separated, the are mostly transformer-less now. theres a bit in section 8 of the IET solar CoP (2022) that says if the inverter is transformerless they recommend designing the supply circuit to the inverter so that an RCD isn't required. Manufacturers instructions are a good place to look for the specific inverter too [/QUOTE]
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Type A or Type B RCD/RCBO for solar pv
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