[PRCo] Re: Cleveland_--_Shaker

[Fred Schneider]

Those motors have not be made in years.  Just because New York City  
has always specified obsolete technology doesn't been the rest of the  
industry is so far behind the curve.  The New York City Transit  
Authority has always had a reputation for buying obsolete hardware.    
I would say that DC motors are rapidly being pushed out of the  
business by AC motor because the AC motors require very limited  
maintenance but I would need to get someone else to tabulate the  
numbers for me.

But my point was the entire PCC control package is obsolete technology.

On Feb 2, 2007, at 12:00 PM, Boris Cefer wrote:

> It does. DC motors are still in daily use almost everywhere, being  
> very
> slowly pushed out of business by 3-phase AC engines. And isn't it  
> resistance
> control technology which moves millions of people in New York City?
>
> ----- Original Message -----
> From: "Fred Schneider" <fwschneider at comcast.net>
> To: <pittsburgh-railways at dementia.org>
> Sent: Friday, February 02, 2007 5:53 PM
> Subject: [PRCo] Re: Cleveland_--_Shaker
>
>
>> Does it matter?   That is 75 year old obsolete technology.   Transit
>> Research went out of business a half century ago.   It's successor
>> merged with ATA more than 30 years ago.   The Westinghouse files are
>> in a cave underground.   They don't make the stuff anymore.
>> Westinghouse as a company doesn't even exist.   Resistance control
>> technology was phased out 25 years ago.   DELETE KEY.
>>
>
>