Circuit breaker tripping more often since solar installation

6 comments started 2023-12-19 last 2023-12-20
GivEnergy ProductsHybrid
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#1 Niceguy

Our GivEnergy 9.5 battery and v3 5kW inverter were installed on 18 September and since then we've had the house mains circuit breaker trip 3 times. Has anyone else had this experience?

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#2 stevelewis

Niceguy it's a common issue. PV naturally has some earth leakage and this can be enough to tip an RCD over the limit if it is shared with other loads. The first step is to move the inverter to a separate protection device.

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#3 couplands

Yes, we've had the downstairs ring circuit trip twice since the AIO was installed 2 weeks ago.

Is this a thing the installer should address or does it point to a weakness in the house wiring that was already there. We had our distribution board replaced on 3-4 years ago so is up to spec.

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#4 stevelewis

couplands the installer should address it as the installation is, ultimately, not fit for purpose. However, the existing wiring could be a contributing factor - regardless of whether you have had a new consumer unit installed.

#6 nophead

With our installation the only connection to the house wiring from the inverter is to the meter tails, before our existing consumer unit, so the installer didn't have to touch any of our existing installation, which is not the best and should probably be replaced sometime. With that sort of connection I don't think any earth leakage in the panels could trip a breaker in our consumer unit because it wouldn't see any leakage current from the panels.

Are some installations connected to the output side of the consumer unit?