[PRCo] Re: Changing Track Switches

[Herb Brannon]

I'm not sure of your location. With 265 electric trolley buses you would
have to be in either San Francisco, Seattle, or Vancouver.
So then a car with pantograph current collection can automatically operate
track switches the same, or similar to, the system used with most PCC cars.

On Sun, Feb 27, 2011 at 21:46, TEP <tompark at telus.net> wrote:

>  Many systems, pantograph or pole, still use the old system, coast for
> through, power for turn, at a contactor about 1 1/2 car's length ahead of
> theswitch. All our 265 trolleybuses here still use this (plus the 1930
> Selectric turn control), but to avoid the risk of applying power on a busy
> street the operator has a toggle switch that dumps power through a
> contactor
> into the traction resistors--just enough to trigger the overhead relay.
> Toronto also still uses its unique system with a separate contact point on
> the side of each trolley head--energised by the motorman as needed..
> Tom P.
>
> On 27/02/2011 17:29, Herb Brannon wrote: As we know, PRCo/PATransit PCC car
> (using trolley poles) operators changed automatic track switches by using
> the"Track Switch" control on the dash. Now with the PAT LRV cars (using
> pantographs) the routes and switches are set by computer. This is also true
> in Cleveland on the entire Red Line and the Green and Blue (former Shaker
> Hgts Rapid) Lines as far East as E. 79th Station. After that its back to
> old
> style manual control on the Shaker lines. Now, SEPTA still uses trolley
> polesso the "Track Switch" on the operators console is probably still there
> and is used. On the other hand, most systems now use pantographs. Like for
> instance MUNI in San Francisco and I'm sure they have a lot of switches to
> gothrough. My question is, how do the systems using pantograph current
> collection change track switches? I know how it's done in Cleveland, but
> not
> other places. Anyone know?
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> Tom Parkinson Tom Parkinson 2 64 2007-04-17T20:06:00Z 2007-04-17T20:06:00Z
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-- 
Herb Brannon
In Cuyahoga Valley National Park