I gone cranking

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Geo Ghost
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Re: I gone cranking

Post by Geo Ghost »

Maybe.. though motors on the traction like 319s and 313s for example are DC motors. I must admit, I haven't noticed a sound different on a 319 before, but there's definetly no change on a 313.
So on DC mode, power goes straight through to the traction equipment. On AC however, it's stepped down and rectified from the AC into a DC current :P
Some units with AC motors are even stranger. The AC current will be rectified into DC, then inverted to AC again for the motors.

I'm quite eager to find out as it has baffled me. Might just be a one off with a couple of units of course.
Mission for the near future... find a 700 traction manual! :D
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Re: I gone cranking

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Re: I gone cranking

Post by Nawdic »

Sounds like a trumpet symphony until the end when someone loses their concentration...
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Re: I gone cranking

Post by The Growl »

Ameecher wrote:
Ah yes, the railjet, a wonderful sounding piece of equipment.
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Pilot
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Re: I gone cranking

Post by Pilot »

That noise would get on my nerves, much like the noise of the 323s or 350s does. I just hope these new Civity's that we're getting here don't make silly noises.
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Re: I gone cranking

Post by EXTspotter »

Pilot wrote:That noise would get on my nerves, much like the noise of the 323s or 350s does. I just hope these new Civity's that we're getting here don't make silly noises.
I quite like it because it gives an inanimate metal tube a bit of character... Commuting on 444s and 450s for a year burned the sound of pulling away into my brain and if I hear it now it brings back memories of the time.
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Re: I gone cranking

Post by Geo Ghost »

That's different... I'll give it that.
It does bug me that the motor goes out of tune on the last note.
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Re: I gone cranking

Post by JamieLei »

So I saw a 387 do a Sutton Loop service for the first time today, followed by a 377 doing the next Sutton Loop! This breaks the unspoken law of Thameslink: Sutton Loop services always get the crap trains.

There must be enough 700s in service already for this to happen...

Yet I haven't been on a 700 in weeks on my daily commute! Seen a few go the other way though.
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Re: I gone cranking

Post by Pilot »

JamieLei wrote:So I saw a 387 do a Sutton Loop service for the first time today, followed by a 377 doing the next Sutton Loop! This breaks the unspoken law of Thameslink: Sutton Loop services always get the crap trains.

There must be enough 700s in service already for this to happen...

Yet I haven't been on a 700 in weeks on my daily commute! Seen a few go the other way though.
There appears to be 4 Class 700 diagrams that operate through the core down the week (has been this way for the last few days at least).

With regards to Sutton, the Class 387s and Class 377s appear to come out in the morning and evening peaks for that line (this is looking as far back as I can be bothered to look, August 5th), though it looks like it may be a little bit different today.
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Re: I gone cranking

Post by JamieLei »

Pilot wrote:With regards to Sutton, the Class 387s and Class 377s appear to come out in the morning and evening peaks for that line (this is looking as far back as I can be bothered to look, August 5th), though it looks like it may be a little bit different today.
Are you looking at this through TRUST? :D
That's one railway system I never learnt...!
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Re: I gone cranking

Post by Geo Ghost »

JamieLei wrote:Are you looking at this through TRUST? :D
That's one railway system I never learnt...!
One system I never wanted to learn :P
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Re: I gone cranking

Post by Pilot »

Geo Ghost wrote:
JamieLei wrote:Are you looking at this through TRUST? :D
That's one railway system I never learnt...!
One system I never wanted to learn :P
It is indeed TRUST, and it is a relatively simple system to use to be fair to it, just looks awful!
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Re: I gone cranking

Post by Geo Ghost »

I got to grips with most of it. But I still just hated using it
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Re: I gone cranking

Post by JamieLei »

It looks like it hasn't changed since 1993. Which it probably hasn't.
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Re: I gone cranking

Post by Ameecher »

I discovered the other day that one of my more distant family members was involved in setting up TOPS. He told me they had an issue where lots of wagons would go missing for ages and then suddenly would appear elsewhere with no reports in between.
It turned out that when wagons were first given number they were painted on the side while they were stopped in a yard and someone walked down the yard from one end to the other numbering them effectively 1 - 10 and then, instead of doing 10 - 1 when coming back down the otherside they were given another set of numbers on the other side. As TOPS was initially a visual reporting system, if nobody saw the other side then effectively they would go missing. Bit of a balls up.
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Re: I gone cranking

Post by Badger »

TRUST is engrained in my working life. The railway would be totally screwed without. It's connected to everything.
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Re: I gone cranking

Post by YNM »

:lol: :lol: :lol:
Really ? What kind of "music" is in that train ? Certainly not rheostats ?
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Re: RE: Re: I gone cranking

Post by OpenNSE »

YNM wrote:
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Really ? What kind of "music" is in that train ? Certainly not rheostats ?
It's those new AC motors we use nowerdays. In the UK we have similar sounding (albeit less tuneful) class 465s. I don't quite understand it, but it is the motors themselves.

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