May 10, 20197 yr Elbow, I am curious to know how you ended up dealing with the bonding issue on your inverter output. Any progress yet?
May 11, 20197 yr Author 11 hours ago, Langeraat said: Elbow, I am curious to know how you ended up dealing with the bonding issue on your inverter output. Any progress yet? Hi, My electrician was quite confident that it should be permanently tied. So that is how it is now. This will trip your earth leakage if your inverter is fed after the E/L - mine is not. I think it's wrong so sometime I will get a contactor and make it dependent one whether the inverter has isolated the input or not.
May 11, 20197 yr Thanks for the feedback. I am currently busy with my installation and my inverter is incidentally exactly the same as yours. If implementing sections 6.12.4 and 7.12.3.1.2 of SANS 10142 as posted previously by Jaws on this thread you will achieve a permanent bond between neutral and earth on the inverter output (and on the input for that matter) so I suppose your Sparky is not far off. 😀
April 6, 20215 yr If I may revive this thread. @Elbow I am busy installing an Infinisolar 3k+ (rebrand) inverter. I'm curious about the whole bonding topic. Are you still permanently bonding N&E on the inverter output ? I was thinking about using a non-latching relay switch (actuated by Grid present, with the Normally Closed contacts connected to Inverter Earth and Neutral) - This way when Grid is present the Relay is open and Inverter Earth+Neutral is not bonded, when Grid is off, Inverter Earth+Neutral is bonded. However, if a permanent bond is both safe and will pass CoC, it is definitely the easier route.
April 6, 20215 yr Author 13 minutes ago, Mier said: If I may revive this thread. @Elbow I am busy installing an Infinisolar 3k+ (rebrand) inverter. I'm curious about the whole bonding topic. Are you still permanently bonding N&E on the inverter output ? I was thinking about using a non-latching relay switch (actuated by Grid present, with the Normally Closed contacts connected to Inverter Earth and Neutral) - This way when Grid is present the Relay is open and Inverter Earth+Neutral is not bonded, when Grid is off, Inverter Earth+Neutral is bonded. However, if a permanent bond is both safe and will pass CoC, it is definitely the easier route. yes, that’s how mine ended up hooked up. it’s not perfect because if my grid browns out then the inverter isolates but there is still enough volts to hold in the commutator. but 99% better
December 6, 20223 yr I'm guessing relay isn't going to be rated for the fault current it might see? Also can't your just set it in the software when connected via USB to output neutral grounding? I'm sure I have seen such a setting somewhere.
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