Re: RK05 spindle pulleys - trade 50Hz vs 60Hz?

[Paul Koning via cctalk]

> On Jul 26, 2018, at 10:54 AM, Anders Nelson <anders.k.nel...@gmail.com> wrote:
> 
> To get that power, did they have to use a rotary convertor from 60Hz 3-phase 
> to get 400Hz?
> 
> https://en.wikipedia.org/wiki/Rotary_converter

No, a motor-generator: https://en.wikipedia.org/wiki/Motor–generator.  Same 
purpose, but constructed as a motor attached to a generator, rather than the 
two merged into a single armature.

http://www.bitsavers.org/pdf/cdc/cyber/cyber_70/fieldEngr/60142400B_6000_Series_Site_Prep_Sep65.pdf
 shows the ones CDC used, starting on page 27.

        paul