Phase mismatch on 5kw.
Hi guys. I have a 5kw inverter installed, grid is on 50Hz, and inverter is set to 50Hz. However, as soon as the inverter starts up, my non-essential load frequency starts flapping. It jumps around between 52 and 62Hz.
It does this even with load completely disconnected.
As soon as I kill the grid feed to the inverter, it stabilizes again.
Any suggestions?
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Have recently been involved in an installation in which the the L, N polarity would swap around when going off-grid, needed to turn around L and N connections.