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  1. S

    Previously working PV/Battery system starting popping RCBO when SMETS2 meter fitted

    when the RCBO originally blew, I thought it would be an easy matter for them to get a replacement, but there ended up a three-way discussion between the installer, the wholesaler and the OEM. In an effort to speed up the repair, I thought I would buy an RCBO myself, how hard could it be to...
  2. S

    Previously working PV/Battery system starting popping RCBO when SMETS2 meter fitted

    sorry, to clarify, it's a 4.8kW solar array and a 7.2kWh battery capable of about 3kW discharge, with a 5kW inverter, so the max power from the PV/batt system would be about 4.9kW after losses. the PV installer sent their guy over, managing to fit in a surprise visit, and uprated the RCBO to a...
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    Previously working PV/Battery system starting popping RCBO when SMETS2 meter fitted

    the RCBO was a 16A one. the paddles were floppy, no possibility of re-engaging it, so it was entirely u/s. Thinking aloud, I think the RCBO was at its limit, the solar array is capable of 4.8kW peak, the inverter is 5kW, so let's say 4.5kW with inverter losses. Our grid is 245V, so that makes...
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    Previously working PV/Battery system starting popping RCBO when SMETS2 meter fitted

    Hi, so the new RCBO was implanted in the Growatt, and for 24 hours it looked fine, and then popped again the following afternoon. so now we're running entirely on grid power. just to add insult to injury, on the first visit when the gas meter was fitted and removed (because of a jurisdiction...
  5. 20190831_PowerWithBattery.png

    20190831_PowerWithBattery.png

    • speculatrix
    • Media item
    • Comments: 0
    • Category: Professional Electrician
  6. S

    Previously working PV/Battery system starting popping RCBO when SMETS2 meter fitted

    Here's a great example of when the sun comes up, powers the house, charges the battery and then finally starts exporting: forum says I'm spamming if I actually put the image inline. blue line is PV power, yellow is battery (dis)charging power (above 0 = charge), green line is battery state of...
  7. S

    Previously working PV/Battery system starting popping RCBO when SMETS2 meter fitted

    We had a PV/battery system was fitted in late May, and measurements showed it was working very well, but then a few weeks ago the old meter (electronic box about the size of a large cigarette packet) was replaced with a SMET2 meter and everything went down hill! When the PV system was working...

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