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Blackpool - Manchester Electrification

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PN27

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31 Jul 2018
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edwin_m said:
Ken H said:
they used to use 'load bank' locomotives. what is a load bank, and is that what the pendos are doing now?

The load bank was 84 003 which became ADB968021
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Essentially a load bank is a massive electrical resistor connected between the pantograph and the rails. This allows test to take place where a large amount of electrical current flows through it.

Someone seems to have decided that testing with trains like Pendolinos that need a large amount of current does the same thing without having to have a load bank.
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As far as I'm aware, load banks were used to test diesel-electric locos, not to test OHLE.

Diesel-electrics use a diesel engine to drive an electric generator, which in turn powers the loco's motors. In order to test the 'generator' part of the loco on its own, without moving the loco, a load bank was connected to the generator's output in place of the traction motors. The diesel engine/generator could then be subject to numerous tests and loading scenarios without leaving the workshop. As edwin_m says, a load bank is effectively a giant resistor, which dissipated the generated power.
 
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Jonny

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PN27 said:
As far as I'm aware, load banks were used to test diesel-electric locos, not to test OHLE.

Diesel-electrics use a diesel engine to drive an electric generator, which in turn powers the loco's motors. In order to test the 'generator' part of the loco on its own, without moving the loco, a load bank was connected to the generator's output in place of the traction motors. The diesel engine/generator could then be subject to numerous tests and loading scenarios without leaving the workshop. As edwin_m says, a load bank is effectively a giant resistor, which dissipated the generated power.
Click to expand...

Various electric locos have been used to provide the same function, but for an OLE setup. It's still a giant resistor... but a giant resistor across an OLE system rather than a generator output.
 
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deltic08

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LDECRexile said:
Wrinkley has kindly sent a film of a carbon deposit test train passing though Lostock.

I've added it to his album here:

https://www.flickr.com/photos/127646831@N03/albums/72157654034635234

and to the Combined Volume here:

https://www.flickr.com/photos/127646831@N03/albums/72157661069863633

Thank you Wrinkley.

Season's greetings to all contributors and readers.
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Haha. Wasn't expecting that.

Seasons greetings to you and thank you for the work you have done in 2018
 
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Magicake

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Messages
121
LNW-GW Joint said:
P1/2 at Victoria still not wired.
A new hoarding has appeared near P1, not obvious what it is for.
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Because platform 3 is higher than platform 2 there is a potential clearance problem for people standing by the green railings behind platform 2 and the platform 2 OLE.

The railings can't be removed as they are listed so they are being left in place and glass screening built behind them. The hoarding is there for the screening works.

EDIT: actually thinking about it more it's more likely the problem is to do with people climbing the railings and electrocuting themselves that way
 
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hwl

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5 Feb 2012
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PN27 said:
As far as I'm aware, load banks were used to test diesel-electric locos, not to test OHLE.

Diesel-electrics use a diesel engine to drive an electric generator, which in turn powers the loco's motors. In order to test the 'generator' part of the loco on its own, without moving the loco, a load bank was connected to the generator's output in place of the traction motors. The diesel engine/generator could then be subject to numerous tests and loading scenarios without leaving the workshop. As edwin_m says, a load bank is effectively a giant resistor, which dissipated the generated power.
Click to expand...

The conversion of 86901 and 902 for OHLE testing and decade of use must have been figments of many many peoples imaginations then!

More info here:

http://www.traintesting.com/Loadbank.htm

(Ditto 84009 along time before them)
 
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a_c_skinner

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21 Jun 2013
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At risk of a mundane question:

Is the whole project finished? What is needed? When will it be done?

Apologies for the mundane.
 
Elecman

Elecman

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ORR sign off and completion of the Long Extension Lead , plus minor things like the M61 overbridge
 
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a_c_skinner

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Off topic but the best definition of the Mandela effect might well be that some Americans know little about the world outside the USA. Confabulation isn't exactly the same.
 
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