Author Topic: DC Generator  (Read 3851 times)

kyradawg

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DC Generator
« on: July 18, 2006, 02:38:05 AM »


Peace&Love :D, Darren
« Last Edit: August 03, 2006, 02:58:07 AM by kyradawg »

mobile_bob

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Re: DC Generator
« Reply #1 on: July 18, 2006, 02:51:12 AM »
surplus center sells them for around 180 bucks or so, jack and heinz manufacture IIRC.

they are out of stock right now, but frequently have them.

surpluscenter.com

bob g

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(useful forums), utterpower.com for all sorts of diy info

mobile_bob

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Re: DC Generator
« Reply #2 on: July 18, 2006, 02:54:54 AM »
also they have splined input shafts, which surpluscenter has.

they are rated at 400 amps, 30 volts at around 3000-6000 rpm if i remember correctly.

bob g
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cujet

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Re: DC Generator
« Reply #3 on: July 18, 2006, 02:53:53 PM »
It is typical for aircraft generators to be run at a maximum of 8000 RPM. Of course, they operate at a lower RPM during cruise.

It is also typical for the generators to have an overhaul period of 1200 to 2000 hours. I have never seen one with a longer lifespan. However they will last longer, it is just that to prevent failure the short overhaul period was typical.

They are also commonly used as starter motors in addition to the generator duties. It would be really cool to setup a Lister with one of these as a starter/generator.

Chris
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cujet

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Re: DC Generator
« Reply #4 on: July 18, 2006, 02:55:51 PM »
Also, the splined input shafts are typically "shear shafts". In other words, you cannot hang a flywheel or pulley on the shaft. The generators are not designed to have belt loads on the bearings.

One would have to be creative with the pulley setup.

Chris
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GuyFawkes

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Re: DC Generator
« Reply #5 on: July 18, 2006, 03:19:33 PM »
It is typical for aircraft generators to be run at a maximum of 8000 RPM. Of course, they operate at a lower RPM during cruise.

It is also typical for the generators to have an overhaul period of 1200 to 2000 hours. I have never seen one with a longer lifespan. However they will last longer, it is just that to prevent failure the short overhaul period was typical.

They are also commonly used as starter motors in addition to the generator duties. It would be really cool to setup a Lister with one of these as a starter/generator.

Chris

try ebay or your local industrial machinery scrap yard

if you're patient you can find big DC servo motors very cheap

http://cgi.ebay.co.uk/SIEMENS-SERVO-Drive-motor_W0QQitemZ110009804371QQihZ001QQcategoryZ26209QQtcZphotoQQrdZ1QQcmdZViewItem

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