There is a interesting "support doc"
from Xantrex about this.

One recomendation of Xantrex to help to start some motors is to
put a 5mH inductor in series with the motor.
http://www.xantrex.com/web/id/730/docserve.asp

Rubens

At 18:11 20/7/2007, you wrote:
>On Sat, 2007-07-21 at 08:20 +1200, Russell McMahon wrote:
>> I have no experience of this but
>> 
>> - If lifetime really matters then use of an inductor as a prefilter is 
>> liable to give an improved waveform, closer to true sinusoidal.
>
>Considering the motor is itself a very large inductor I'm not sure how
>helpful it would be, without it also being very large. 
>
>On top of that I'd worry about the derating you'd have to do to the
>inverter. It's already driving a very inductive load, that alone derates
>it quite a bit, adding another inductor would probably mean having to
>upsize the inverter even more.
>
>Frankly, if it is a concern I'd leave towards getting an inverter that
>outputs a true sine wave, it eliminates all these concerns. Yes, they
>are more expensive, but if the chance of killing the motor is really a
>concern it might be worth it.
>
>Personally fridge compressors are so reliable these days I wouldn't
>worry about this issue at all. I don't think I've ever seen a fridge
>where the compression actually failed. TTYL
>
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