Generator issue

[Justme]

Hoping @gensetsteve sees this.

 

What do you think is causing this on my single phase 14kVa brushless generator?

First pic is is off load.

Second with 600 watts load.

 

 

 

 

[Justme]

Second pic was also measured at a different point so I think inverted the wave.

[gensetsteve]

What was the fault that made you put it on a scope . That voltage is that at the output terminals or coming out the Avr 

[Justme]

On 24/12/2020 at 22:53, gensetsteve said:

What was the fault that made you put it on a scope . That voltage is that at the output terminals or coming out the Avr 

Our victron system stopped accepting the power. Said the htz was 33-88 ish & voltage I saw was 170-250. Son saw 90 at one point.

On the genny it reported 54htz but voltage all over.

 

The voltage on the  scope are from the main output but never seem to make sense.

 

The service agent sent me a new AVR. That improved things lots & my Victrons accepted the power. But on closing it all up I spotted that a terminal had fractured on some main winding wires. Fitting a new terminal has now fixed it.