[PRCo] Re: PCC Control

[Ken & Tracie]

Yes and it's too bad Stephen King didn't do his research before writing some 
of his novels.

He didn't know as much as he should have about 1958 Plymouths nor about 
stationary steam boilers. :-)

But the plots were good.

K.

----- Original Message ----- 
From: "Boris Cefer" <westinghouse at iol.cz>
To: <pittsburgh-railways at dementia.org>
Sent: Tuesday, May 15, 2007 9:50 PM
Subject: [PRCo] Re: PCC Control


> There are practically no secrets as for how the PCCs work, but these
> articles are always very interesting to read, perhaps better than Stephen
> King.
>
> B
>
> ----- Original Message ----- 
> From: "Fred Schneider" <fwschneider at comcast.net>
> To: <pittsburgh-railways at dementia.org>
> Cc: "Taplin Mike" <miketap at globalnet.co.uk>
> Sent: Wednesday, May 16, 2007 4:08 AM
> Subject: [PRCo] Re: PCC Control
>
>
>> Bob and anyone else crazy enough to tune in to this station:
>>
>> There was an two or three old old issues of Modern Tramway with a
>> pieces by W. J. (Jack) Wyse that explained all this.   They covered
>> both the high voltage and the low voltage (32 volt) wiring on a pre-
>> war PCC and it was probably the best explanation that appeared in
>> print anywhere.   But it takes a whole bunch of evenings looking at
>> the wiring diagrams before it all sinks in.    It explains the
>> sequence of all the motoring, braking and field shunting contactors
>> and what they do.  It was very wordy but that is necessary for a very
>> complex subject.    It was almost essential that you have a prior
>> course in physics or electronics before you read the articles.   Jack
>> never wrote a subsequent dissertation that covered the changes needed
>> for extended dynamic braking.
>>
>> I don't remember when it was published but perhaps Mike Taplin can
>> come back to us with a citation.    It was sometime back in the 1960s.
>>
>>
>>
>> F3
>
>
>