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I have a small 250VA victron phoenix inverter and trouble using a phase cut power regulator. When connecting said regulator, the inverter makes a very loud humming noise and voltage level rises about 20V from 230V to 250V.
It sounds (and the values look) very unhealthy, so I disconnected it immediately.
Without that regulator the inverter works normally....
Any ideas what is wrong?
They use thyristor or triac based control, they 'cut' (as the name suggests) the sine wave. The back emf from these circuits are a problem for inverters, especially ones that synchronise with grid frequency.
Yeah I thought so, I wanted to use it to regulate a heater element, but then I will just use a transformer for that purpose.
Yeah the noise is a bit disconcerting. A side effect of the transformer in there interacting with the case.
