Re: [OT?] PCC controller video
  Mick Duncan

Gday Tony

Assuming arab maintainence, probably a lot

Filing and lubing fingers and segments would have taken place every day

I hope they also had line breakers, which with the controllers
probably had a short unhappy life.

Still, a running tram is better than none

There is no way known Id put the key into neutral after applying 4th
before the tram had stopped

Cheers, Mick

On 10/08/2017 9:44 PM, Tony Gallowayarg@... [TramsDownUnder] wrote:
>

>

> Those series pairs of motors each equal 110hp, X 2 for the full set of four. A K35 circuit in a normal 2 motor configuration would likely be rated for 2 X 65hp. Current pulled by 220hp @600v = 273.4A, flowing through a direct controller in a cab - that’s a lot of juice. I wonder how often they had flashovers ?

>

> Alexandria also had articulated Düwags from Copenhagen - did any get the K35 treatment as well ?

>

> Tony G

>

>

>> On 10 Aug 2017, at 7:29 pm, Mick Duncankitbuny@... mailto:kitbuny@bigpond.net.au [TramsDownUnder] TramsDownUnder@... mailto:TramsDownUnder@yahoogroups.com> wrote:

>>

>> 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

>>

>>

>>