After some checking most transformers show the percent of inductance on 
the label. Some are 2.5% some are 4.~%. Basically the 611 drive is a 
poorly designed drive as the power requirements are very strict. This 
drive wants balanced voltage and wants an unlimited supply of it now!

John

On 6/1/2012 5:52 PM, gene heskett wrote:
> On Friday, June 01, 2012 06:50:05 PM John Thornton did opine:
>
>> I posted on the C(ommerical)NCZone and a guy there says those drives are
>> rated for a 3% inductance wye isolation transformer.
>>
>> John
>>
> BS alert there John. 3% of what?  Without a frame of reference you may as
> well be shopping for a good used car.
>
> Cheers, Gene

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