[PRCo] Re: Interurban PCCs ???

[John Swindler]

Does that mean, Boris, that the balancing speed of a PCC motor would be 
around 30 mph on level track with 600 volts.  And it is the weakening of the 
field that allows the motor speed to increase to propel a PCC car to around 
42 mph??  In other words, at what track speed would the back EMF equal 
applied force without field shunting??  And with field shunting???

John




>From: "Boris Cefer" <westinghouse at iol.cz>
>Reply-To: pittsburgh-railways at dementia.org
>To: <pittsburgh-railways at dementia.org>
>Subject: [PRCo] Re: Interurban PCCs ???
>Date: Sun, 27 Mar 2005 12:12:46 +0200
>
>You are much closer to various sources, Jim.
>At these days Boston has field shunts disconnected to restrict speed on the
>Mattapan-Ashmont "high-speed" line. The PCCs I rode there were not able to
>exceed 30 mph.
>
>B
>
>----- Original Message -----
>From: "James B. Holland" <PRCoPCC at P-R-Co.com>
>To: "- 1714 PRCo__WP__JTC -" <pittsburgh-railways at dementia.org>
>Sent: Sunday, March 27, 2005 11:18 AM
>Subject: [PRCo] Re: Interurban PCCs ???
>
>
> > Wonder about other PCC cities using shunting for greater speed.
> > Shaker, Boston, IT, PE, could definitely benefit from this.       Gotta
> > collect more schematics, Boris!!
> >
> >
> > Jim
>
>