Non-essential load displaying -65492W when there is no load
Hope someone can assist me with this issue. My installer is not sure also.
When looking at the flow chart I noticed the non-essential load is displaying a weird value of -65492W when there is no essential load (sometimes it flashes to 0w for a split second). If I add an essential load of approx 4kw the value changes to -61000w. Everything is working correctly - The system is not drawing more than should from the grid.
I suspect it is something to do with the CT sensors. They are squeezed into the DB due to lack of space and there might be interference from another wire or another wire is also clamped on the CT sensor.
Let me know your thoughts.
59 Views
Thanks Peter.
The CT was not the issue because the CT value from the grid matched with what I was seeing on my prepaid meter. This shows that all CTs were correctly installed.
I was on Software E02A and after my installer upgraded my to E30 the issue has not resurfaced again.
Also, the third phase in the picture can be negative if the system is exporting to non-essentials which is what was happening because I had excess PV.