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Old 11-10-2022, 06:25   #1
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D400 vibration/resonance when > 14.2v

We have two D400 wind turbines and one of them has a vibration or resonance that goes through the boat once the batteries exceed 14.2 volts. There are also two Victron MPPT solar chargers for the 1000 watts of solar so these controllers bring the voltage up beyond the 14.2 volts to reach the proper absorption voltage.

The dump resistors are seeing current during this time so the regulator appears to be doing what it’s supposed to do.

It sounds almost like the load is going on and off the turbine rapidly above 14.2v.

Has anyone experienced this type of issue before?
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Old 11-10-2022, 06:31   #2
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Re: D400 vibration/resonance when > 14.2v

I had D400 vibration when the bearings needed replacing. The vibration was only noticeable at particular wind speeds/turbine rpm.
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Old 11-10-2022, 06:54   #3
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Re: D400 vibration/resonance when > 14.2v

Quote:
Originally Posted by pjShap View Post
I had D400 vibration when the bearings needed replacing. The vibration was only noticeable at particular wind speeds/turbine rpm.
Our issue really seems to be voltage related as it happens at all wind speeds (high enough to provide output) when voltage is above 14.2.
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