[RE-wrenches] Outback Voltage Spikes?

[drake.chamberlin at redwoodalliance.org]

Hello Wrenches,

We have an Outback VFX3648 inverter AC coupled to a Stirling
Generator. We use an Outback autotransformer to  get the 240 V needed
to match the Stirling. The Stirling generator must run continuously,
as it is difficult to start up after a shut down.

The system works flawlessly for many hours. At some point, usually
when the dump load kicks on, the generator shuts down on a high
voltage error. High voltage is about 264 V. We have never seen voltage
that high on the system. 

We replaced the control board on the inverter, and the output voltage
appears very stable. The Stirling people say that the Outback must be
putting out high voltage spikes that are so brief that we will not be
able to see them with a voltmeter. 

Can an Outback inverter create such spikes? 

Thanks,

Drake 


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