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Military MEP and Aircraft Gen-Sets

1943 M5 Generator Three Phase Power


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  #1  
Old 12-01-2017, 11:10:59 AM
Steve Mickelson Steve Mickelson is offline
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Default 1943 M5 Generator Three Phase Power

I have a couple of M5 generators.First off I am not an electrical person,I know you can get 125 volts by connecting any two leads.My question is could you use a 3 phase transformer 220-440 connect to the 220 taps with the 125 from generator and get 220 3 phase.I have read that these generators are not configured like normal 3 phase can anyone shed some light on this for me?Have looked at most of the threads here and not seen that anyone has done this.Thanks in advance.Steve
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Old 12-02-2017, 07:26:34 AM
Rich Mc Rich Mc is offline
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Default Re: 1943 M5 Generator Three Phase Power

The generator is wound as a "Y" configuration, the voltage per coil internal is about 72 volts and the neutral or common connection is buried inside the stator housing.

A 3 phase step up transformer should work though I don't know how big of a motor one could start off this generator.
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Old 12-02-2017, 08:33:43 AM
Steve Mickelson Steve Mickelson is offline
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Default Re: 1943 M5 Generator Three Phase Power

Thanks for the information, if I can find a reasonably priced transformer I would like to try it.I have 2 complete M5's and would like to see them do something rather then just sit and look pretty.
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Old 12-02-2017, 02:12:19 PM
Vanman Vanman is offline
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Default Re: 1943 M5 Generator Three Phase Power

Also remember that operating at 1/2 voltage the transformer rating needs to be twice the KVA of the load served, ie operated within it's current rating.
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