[PRCo] Re: voltage and frequency

[Boris Cefer]

The value of 16 2/3 Hz came originally from rotary sources (alternators) of 
energy owned by railroads. The electricity did not come from public grid 
originally.

B
(experienced non electrician)

----- Original Message ----- 
From: "John Swindler" <j_swindler at hotmail.com>
To: <pittsburgh-railways at dementia.org>
Sent: Wednesday, August 29, 2007 2:18 PM
Subject: [PRCo] Re: voltage and frequency


>
>
>
> Any electricians who can comment if there is any significance that the
> railways operate at 1/3 the Hz of the public energy grid?  Maybe single
> phase tapping from three phase????
>
> Just wondering?????
>
> John, non electrician
>