[time-nuts] OT - DC-10 gyros

Peter Gottlieb nerd at verizon.net
Wed Mar 27 23:19:36 EDT 2013


If you need good 3 phase 400 Hz you can get a VFD which goes up that high and 
program it to just sit there making 400 Hz.


On 3/27/2013 11:16 PM, bownes wrote:
>
> On Mar 27, 2013, at 22:54, Jim Lux <jimlux at earthlink.net> wrote:
>
>> On 3/27/13 3:20 PM, Bob Camp wrote:
>>
>>
>> Of course, for the more mechanically inclined.. what about a big flywheel driving an alternator.  You might be able to rejigger a car alternator.  I don't recall how many poles they have..
> A motor driving a flywheel driving an alternator/generator is called a motor generator set. Some implementations are called a diesel electric locomotive. We used to use them as power conditioners for Cray class supercomputers. Also used by many home machinists to generate 3 phase from single phase power.
>
> Car alternators are generally 3 phase internally. Don't know if you could get 28vac out tho.
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