[PRCo] Re: Repeat...

[Schneider Fred]

Boris:
Do you have any idea what car?   What motors?   What percent of  
possible accelerating relay spring tension was applied (i.e., how  
much pedal was used)

Do we know know what speeds can be applied to the corresponding  
points on the amperage curves?

Also was he just touching the brake pedal or is it full dynamic brake?

In answer to my original problem .... I see that if you just position  
the mouse anywhere on the drawing and click again, you get full  
resolution.   No problem.

So now I can interpret the drawing ... there is a brief amperage  
spike up to about 630 amps when the car is accelerating and all four  
field shunt coils are connected.   If you are running a system like  
Chicago Transit Authority with almost 150 cars on Wentworth Avenue or  
State Street or Broadway or Clark St., you can potentially be drawing  
some real amps from the substations compared to what you used before  
the PCCs were installed even though you may now have fewer cars.

Now I need to find someone locally to make a large print of it to put  
into my PCC car data file that is being moved to PTM.

Fred Schneider

Blind carbons to Bruce Wells and Bernie Orient.

On Jul 30, 2009, at 2:16 PM, Boris Cefer wrote:

> http://lists.dementia.org/files/pittsburgh-railways/Acceleration- 
> coast-brake%20cycle.jpg
>