[ARC5] ATD Project: Dynamotor First

[Michael Hanz]

If the wire gauge was not big enough, the extra resistance of the 
smaller wire would actually help reduce the starting current surge. Peak 
steady state current under phone operation is 19 amps.  Using WA5CAB's 
3x to 5x rule of thumb, that means somewhere between 57 and 95 amps 
starting current.  Extra capacitors would help, but they'll have to be 
pretty big.

73,
Mike  KC4TOS

On 8/1/2017 2:54 PM, ersmar wrote:
> Dave:
>
> Is the DC wire gauge heavy enough?
>
> 73 de
> Gene Smar AD3F
>
>
>
> -------- Original message --------
> From: David Stinson <arc5 at ix.netcom.com>
> Date: 08/01/2017 1:27 PM (GMT-05:00)
> To: ARC-5 <arc5 at mailman.qth.net>,milsurplus at mailman.qth.net
> Subject: [ARC5] ATD Project: Dynamotor First
>
>
> Making a start on the ATD project.  Built the cables and lubricated 
> the dynamotor.
>
> 28 Volts at rated 50 Amps from two stacked Astrons with the parallel 
> enable circuit
>
> will not  start it.  Time to go dig-out some surge caps.
>
> 73 DE Dave AB5S
>
>
>
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