Looking for an IBM 3803

[Curious Marc]

Yes, we are hoping that we can power the  blower with 3 phase and the rest directly from the 240V electric car circuit… Not sure if that can be rewired for that.
Marc

> On Sep 6, 2021, at 6:50 AM, Patrick Finnegan <pat at vax11.net> wrote:
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> 
>> On Mon, Sep 6, 2021, 06:36 Curious Marc via cctalk <cctalk at classiccmp.org> wrote:
> 
>> I got both the 3420s and the 3808 from Sellam. On the restoration docket, now with a better chance thanks to the ALDs which I recently got from Gabriel himself. I scanned my 3420 ALDs and gave them to Gabriel in return. Biggest annoyance, besides humongous size and weight, is the amount of 3 phase power required.
> 
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> From what I remember, the only thing that requires 3 phase in the whole system is the blower motor in the 3420 drives. The rest are powered off of single phase 200-240VAC.
> 
> The large 3 phase input on it 3803 is likely overkill for even a controller and full string of 8 drives. It's easier to oversize things and have a 3x safety margin, then deal with running close to the limits and risk any problems from poorly installed site wiring.
> 
> Pat
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>>