Re: [OT?] PCC controller video
  Dudley Horscroft

Someone thought they were ex Washington trams. I am pretty sure they were ex-Toronto. They were painted a shade of dull blue -
perhaps because by the time I saw them the blue had had years to fade. A great contrast to the new brand new Duwag trams ex
Copenhagen, which were near spotless, rode well were fast and well patronized.

Regards

Dudley Horscroft
----- Original Message -----
From: "Mick Duncankitbuny@... [TramsDownUnder]" TramsDownUnder@...>
To: TramsDownUnder@...>
Sent: Thursday, August 10, 2017 7:29 PM
Subject: Re: [TramsDownUnder] [OT?] PCC controller video


> Gday Tony

>

> Your right, Alexandra probably would have kept the 300V motors in series

> pairs and then you would have series,series parallel control

>

> Not hard as the K35 can be used as a 2 motor comtroller and each pair

> would be treated as one motor as far as the controller wiring is concerned

>

> I guess the arabs wouldnt care about the excessive current in the half of

> the reverse barrel in use.

>

> No dynamic brakes.

>

> Cheers, Mick

>

>

> On 10/08/2017 10:14 AM, Tony Gallowayarg@... [TramsDownUnder]

> wrote:

>>

>>

>>

>>> On 10 Aug 2017, at 9:57 am, Richard Youltressteleg@...

>>> mailto:tressteleg@yahoo.com.au [TramsDownUnder]

>>> TramsDownUnder@...

>>> mailto:TramsDownUnder@yahoogroups.com> wrote:

>>>

>>>

>>> As for the definition, would a car still be considered a PCC if

>>> controlled by a K35 type of controller? This is not fantasy. In 1975

>>> in Alexandria Egypt at least some of their (?ex Washington) PCCs had

>>> been downgraded in such a manner.

>>>

>>

>> It would be interesting to see how the 300v motors were wired to the

>> K35 - series would have required all motors in series, while parallel

>> would be series-parallel. Normally it’s the other way around, with

>> series meaning series-parallel and parallel meaning just that.

>>

>> 300v motors were used to increase the range of dynamic braking. If the

>> original wiring on these cars was junked to the extent that a K35 or

>> similar controller could be used they could have replaced the motors

>> with 600v items, and had a conventional K35 traction circuit, with air

>> brakes to do the stopping. I’m pretty sure Washington PCCs were

>> air-electric.

>>

>> Egypt - the Innovation Nation……

>>

>> Tony G

>>

>>

>>

>

>