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Author Topic: 12.5KVA 1/3PH 1800RPM Military (Onan/Cummins) Generator Heads Available  (Read 220 times)

wheelMA1

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I know they are not necessarily Lister related, but as they include flywheels (which could accept a belt drive in a somewhat unconventional way) perhaps they are of use to someone on these boards.

I have (5) New in Box military generator heads available. They are rated 12.5KVA (I also have a smaller one, same design, but for the smaller military platform at 6.25KVA). See photos. They are still in the crate, 12 wire heads. $1,200/ea plus freight to your location. These were $4400 new to Uncle Sam in large volume purchases.

1800RPM operation. In the military application (MEP-803A) they are reconfigurable to 120V 1PH, 240V 1PH, and 120/208 3PH.


dkmc

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Re: 12.5KVA 1/3PH 1800RPM Military (Onan/Cummins) Generator Heads Available
« Reply #1 on: September 07, 2022, 05:09:22 PM »

Is there exciter and/or regulator equipment required for these?
Been looking for a 3ph head to power the shop machines during outage.
Where are you located?
Machinist, fabricator, designer, daydreamer.... mostly.

wheelMA1

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Re: 12.5KVA 1/3PH 1800RPM Military (Onan/Cummins) Generator Heads Available
« Reply #2 on: September 07, 2022, 05:24:05 PM »
There is a field exciter included in the genhead on this equipment. In the military machines they tie back to a voltage regulator. This genhead is complete with the 12 wire output, and the 2 field exciting wires. This is a VERY high quality brushless head. I service and resell military diesel generators, and came into a quantity of these new in box. Photos below are of the field exciter, as well as the 'black magic' area on the military gensets.


wheelMA1

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Re: 12.5KVA 1/3PH 1800RPM Military (Onan/Cummins) Generator Heads Available
« Reply #3 on: September 07, 2022, 05:24:36 PM »
Also I am located in Massachusetts, but can ship anywhere a common carrier goes. I sell the military gensets all over the US and Canada.

wheelMA1

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Re: 12.5KVA 1/3PH 1800RPM Military (Onan/Cummins) Generator Heads Available
« Reply #4 on: September 07, 2022, 05:47:01 PM »
And I will add further, I know of a voltage regulator that will work with this head (actually an updated civilian equivalent to what the put in the military machines) that can be connected to produce 3PH if you wanted to wire it up as such. I reached out to the builder (a friend of mine here in MA) and this was his exact response:

"Yes my VR would work for that application.  It just needs to be hooked up to N and one of 3 phase legs to get its 120 volts AC to operate.
The setup would need a small circuit so the gen head can be flashed after starting the engine.  Would be a pushbutton ,  a resistor and a diode."

Happy to discuss further if interested. The actual VR can be seen here: https://www.ebay.com/itm/184550789499?hash=item2af815917b:g:Sd0AAOSwbNte96Ea&amdata=enc%3AAQAHAAAAoOcFhR89NJ9b5Ec8hOrGGYec84Eh9B0xZbOWTQs2Qpvt4btUpRBxMdS31I8NfF4c3e3lsmpmjUjDKBY5d0d9kGfDtiOgJhCozUECkR3b7cBl9SKJ%2BOXAG%2Fvu%2BwLPZPnKF92bwRuvD7u3xw%2B22aBbjGQZdxnvVDtHuvROOV6aQ6bIr2P5ONrR%2FkJ%2Flb3QjS6t%2B2RhbF28EJlRvYxaYHObNG8%3D%7Ctkp%3ABk9SR_jwxI3jYA


32 coupe

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Re: 12.5KVA 1/3PH 1800RPM Military (Onan/Cummins) Generator Heads Available
« Reply #5 on: September 07, 2022, 07:04:42 PM »

I have one of those VR kits in my 803 (military gen set) and will say it is one of the best
kits I have ever purchased. The parts included are all labeled and the instructions are clear
and easy to follow.

Metro 6/1 turning a ST 7.5 KW gen head
Changfa 1115 turning a ST 15 KW gen head
Ashwamegh 2/25
John Deere 110 TBL
New Holland TC 30

"I was sitting here reading this thinking what an idiot you are until I realized it was one of my earlier posts !"

wheelMA1

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Re: 12.5KVA 1/3PH 1800RPM Military (Onan/Cummins) Generator Heads Available
« Reply #6 on: September 07, 2022, 07:06:48 PM »

I have one of those VR kits in my 803 (military gen set) and will say it is one of the best
kits I have ever purchased. The parts included are all labeled and the instructions are clear
and easy to follow.

Are you on Steel Soldiers?

32 coupe

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Re: 12.5KVA 1/3PH 1800RPM Military (Onan/Cummins) Generator Heads Available
« Reply #7 on: September 07, 2022, 09:22:10 PM »

Yes, I sent you a pm.
Metro 6/1 turning a ST 7.5 KW gen head
Changfa 1115 turning a ST 15 KW gen head
Ashwamegh 2/25
John Deere 110 TBL
New Holland TC 30

"I was sitting here reading this thinking what an idiot you are until I realized it was one of my earlier posts !"

wheelMA1

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Re: 12.5KVA 1/3PH 1800RPM Military (Onan/Cummins) Generator Heads Available
« Reply #8 on: September 30, 2022, 02:39:19 PM »
These heads are designed to bolt up to the Lister Petter Alpha series (LPW2 and LPW4 specifically). They may also work with the 3 cylinder models (my assumption).

dkmc

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Re: 12.5KVA 1/3PH 1800RPM Military (Onan/Cummins) Generator Heads Available
« Reply #9 on: September 30, 2022, 08:08:04 PM »

So single bearing head. Lots of work to run one with a CS. Top quality looking units for sure.
Machinist, fabricator, designer, daydreamer.... mostly.