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Old 09-28-2012, 01:37 AM   #21
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Originally Posted by socalelect View Post
When I did alot of work on trucks I learned about series parralel switches the hard way
That about the biggest pain in arse if not pay attetion to the connections on the batteries and once a while I have a service call related to the series parallel switch blow up I useally end up replace few cables along the way.

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Old 09-28-2012, 01:41 AM   #22
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Quote:
Originally Posted by frenchelectrican

That about the biggest pain in arse if not pay attetion to the connections on the batteries and once a while I have a service call related to the series parallel switch blow up I useally end up replace few cables along the way.

Merci,
Marc
That is for sure, we actually do quite a bit of auto electrical work on emergency vehicles that mechanics usually screw up
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Old 09-29-2012, 10:49 PM   #23
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Old 09-29-2012, 10:51 PM   #24
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Here's some pics. Iirc its 225 volt 3 phase 64 amps 1200 rpm 40 volts exciator.


What do ya think french marc?


371 detroit also
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Old 09-30-2012, 04:22 AM   #25
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Got any pictures of the whole thing?
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Old 09-30-2012, 04:00 PM   #26
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Old 09-30-2012, 05:36 PM   #27
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She's a beaut'. That thing will run for the next 100 years.
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Old 09-30-2012, 05:53 PM   #28
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She's a beaut'. That thing will run for the next 100 years.
American marc. Do you know where I could find info on this old girl
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Old 09-30-2012, 06:10 PM   #29
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Maybe. I saw literally stacks of them outside at the Pennsylvania Railroad Museum. I'd guess they could turn you on to the service docs. That's sorta what they do. .
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Old 09-30-2012, 06:42 PM   #30
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Ya got the good unit unforetally only gotcha is that you have straight delta unit but I am not sure if I did see 4 th wire comming out of it however if so you may have netural there.

You can use delta / wye transfomer to drop down to proper voltage plus you will have good netural from it. ( the only issue you may have is the line to netural voltage will be little low side if you set the delta side on oringal 225 volts unless you have tapper on primary side you can adjust it. )

Merci,
Marc
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Old 09-30-2012, 06:53 PM   #31
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Quote:
Originally Posted by frenchelectrican
Ya got the good unit unforetally only gotcha is that you have straight delta unit but I am not sure if I did see 4 th wire comming out of it however if so you may have netural there.

You can use delta / wye transfomer to drop down to proper voltage plus you will have good netural from it. ( the only issue you may have is the line to netural voltage will be little low side if you set the delta side on oringal 225 volts unless you have tapper on primary side you can adjust it. )

Merci,
Marc
Its got 4 large wires coming out of the head 0 1 2 one not numbered. Wire 0 is grounded to the frame then it has 2. 12 gauge or so wires coming out that gotta plate with a transformer and 2 adjustable resistors a little term block and some sort of Bakelite board with small wires bolted to it
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Old 09-30-2012, 06:54 PM   #32
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I have to work on a old generator that I was told came from the railroad it was used on refer cars. 3 cylinder detroit 3 phase 25 kva I dont have a ton of info yet I still have to go out with the crane truck and pick it up. Does anyone have info on these like parts info? Im pretty sure french marc might
There is a train museum in Union IL.
They might have info or an interest in it.

www.irm.org
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Old 09-30-2012, 07:02 PM   #33
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Its got 4 large wires coming out of the head 0 1 2 one not numbered. Wire 0 is grounded to the frame then it has 2. 12 gauge or so wires coming out that gotta plate with a transformer and 2 adjustable resistors a little term block and some sort of Bakelite board with small wires bolted to it
Ok we are getting somewhere now and I am pretty sure that is full delta format with netural.

The 2 conductors with 12 gauge that will go for feild coil as far for the transfomer I will have to do little digging on that part to make sure I am reading the diagram correct.

Merci,
Marc
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Old 09-30-2012, 07:30 PM   #34
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A nice score !

It will look good when cleaned up a bit !
With a little bit care,
it will run for another 100 years easily !
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Old 10-05-2012, 01:03 AM   #35
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Well here's a little update I figured out it was put in service in 1970. Got it running, threw the fuel lines in a can new solenoid and she fired up, had to repair the voltage regulator, the voltage is running a bit high its a 208 y 235 line to line 137 line to n. Im going to try adjusting the resistors if that dont work I may trash the caveman tech voltage regulator and throw a
Avr on it. Does anyone know of a good source for a universal model?
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Old 10-05-2012, 01:21 AM   #36
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Any pics? I was a machinery tech in the Coast guard and worked on some really old Detroits, 4-53's were the smallest. Always loved em!
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