drafts:multigrid_faq
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drafts:multigrid_faq [2018-03-04 04:31] – created guystewart | drafts:multigrid_faq [2019-02-01 11:23] – guy_stewart | ||
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====== Multigrid Troubleshooting FAQ ====== | ====== Multigrid Troubleshooting FAQ ====== | ||
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+ | === DRAFT === | ||
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===== # Error 11. ===== | ===== # Error 11. ===== | ||
- | + | For issues relating | |
- | Error 11 refers to a fault state where an internal relay check is performed to assess if there is a functioning neutral earth link in the electrical system. If a neutral earth link is not found, the Multigrid will engage the relay and create this link. | + | |please read the VE.Bus Error Codes page]]. |
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- | There can only be 1 earth, neutral link bond (NEM) in each installation. | + | |
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- | In the event of a detected grid outage, the Multigrid will disconnected (" | + | |
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- | It is important for the operation of this relay, that the neutral links on the AC input and AC output of the Multigrid remain isolated from each other. | + | |
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- | If there is a connection detected between these two neutrals, it will trigger | + | |
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- | If you are adding the Multigrid to existing wiring and intend to seperate the essential (AC-Out) and non-essential (AC-In) loads; It is recommended to disconnect all existing distribution board wiring for these and re-wire the board with them structurally separated and clearly labelled. | + | |
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- | To be clear, that is two separated, neutral buses. One for the mains grid supply and one for the AC-Out ' | + | |
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- | It will only take one instance of a circuit with the active connected to the AC-out, while the neutral is connected to the AC-in neutral | + | |
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- | Furthermore, | + | |
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- | If you are not separating the loads into Essential and Non-essential, and all loads will be connected to the AC-Out of the Multigrid, then you will STILL have 2 seperate neutrals. However the ONLY load on the Main Grid Supply neutral will be the Multigrid AC-Input. | + | |
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- | This will still cause the NEM link to be broken during an outage, and the new NEM link to be made inside | + | |
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- | You will need to run two Active and two Neutrals to the Multigrid, one for the AC-In and one for the AC-out. They will share the same common earth. | + | |
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- | {{: | + | |
===== # Nuisance Tripping of Residual Current Devices (RCDs) ===== | ===== # Nuisance Tripping of Residual Current Devices (RCDs) ===== | ||
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Some common troublesome appliances to check and disconnect first when troubleshooting are: | Some common troublesome appliances to check and disconnect first when troubleshooting are: | ||
- | Surge Protected Power-boards | ||
- | Old refrigerator compressors | ||
- | Electric hot water units (due to their own earth differential from the main earth stake). | ||
+ | * Surge Protected Power-boards | ||
+ | * Old refrigerator compressors | ||
+ | * Electric hot water units (due to their own earth differential from the main earth stake). | ||
+ | If removing/ | ||
+ | If multiple circuits sharing a single RCD each have a small leakage, replace it with RCBO’s on each of the circuits to bring down the total to within the limits. |
drafts/multigrid_faq.txt · Last modified: 2019-02-01 13:39 by guy_stewart