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Onan Standby Generator 50 5KW3 phase 19820


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Old 06-04-2017, 03:49:30 PM
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Default Onan Standby Generator 50 5KW3 phase 19820

Which control wires need to be hooked together to make a standby generator excited all the time so I can convert to portable generator

---------- Post added at 02:49:30 PM ---------- Previous post was at 02:43:34 PM ----------

Model number 55.OEN 15R/25432D
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Old 06-04-2017, 03:50:05 PM
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Default Re: Onanstandby generator 50 5KW3 phase 19820

Please post the COMPLETE model and serial numbers so the smart guys can lead you in the right direction.
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Old 06-04-2017, 04:39:12 PM
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Default Re: Onanstandby generator 50 5KW3 phase 19820

Don't understand your question. What are you trying to do. 55KW is hardly a portable generator. If you want to be able to run it. Just flip the switch to RUN. It will do the rest.
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Old 06-04-2017, 06:04:49 PM
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Default Re: Onanstandby generator 50 5KW3 phase 19820

To make it excited ALL of the time, put a nice photo of a classic Kohler with the cowl doors open in front of it.
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Old 06-04-2017, 06:22:52 PM
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Default Re: Onanstandby generator 50 5KW3 phase 19820

Quote:
Originally Posted by Vanman View Post
To make it excited ALL of the time, put a nice photo of a classic Kohler with the cowl doors open in front of it.
You could also show it. A picture of a Generac in flames.
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Old 06-04-2017, 07:45:08 PM
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Default Re: Onanstandby generator 50 5KW3 phase 19820

Model number 55.OEN-15R25432D. Serial number F820623029. The generator was placed at three please reword it for single phase it had a transfer switch on it there is no transfer switch on it now it will not produce power what am I doing wrong

---------- Post added at 06:45:08 PM ---------- Previous post was at 06:19:47 PM ----------

I have a Onan 55KW generator three-phase model number 55.OEN-15R25432D. Serial number F820623029when I purchased it it was hooked up on three phase with a transfer switch I have reconfigured the wiring for single phase 220 I do not have a transfer switch I cannot figure out how to make it produce power
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Old 06-04-2017, 08:42:47 PM
Wayne 440 Wayne 440 is offline
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Default Re: Onanstandby generator 50 5KW3 phase 19820

At this point, there is no way to tell what you may have done incorrectly.

Please answer these questions-

(1) Did you see the generator produce voltage when it was wired for 3 phase?

(2) What reference material did you use to determine your wiring for single phase?

(3) When you started the set up after rewiring, did the engine labor at any time?

(4) Did you record the original wiring scheme, so you might return it to the previous 3 phase condition?
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Old 06-04-2017, 08:50:43 PM
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Default Re: Onanstandby generator 50 5KW3 phase 19820

Your wiring should look like this. Be sure to move wire 63 to H5. Are you checking voltage at L1/L2 or just using the meters
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Old 06-04-2017, 11:21:32 PM
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Default Re: Onanstandby generator 50 5KW3 phase 19820

Are use the schematic that's inside the panel behind the breaker I did change the war in the control panel behind the gauges but there is a jumper wire going from age 3 to 63 I disconnected the 63 side of the jumper wire no I did not ever see this generator make voltage after I got it home

No the generator has never labeled like it's got a loadall the wars that went to the remote for inside the house and all the wires that went to the transfer switch the small wires have got wire twist nights on all of them

I did move the wire to h5 what is the jumper wire for that goes from h3 to63 for

When I got the generator it was wired like number three colony on the wiring diagram I rewired it to diagram one
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Old 06-05-2017, 04:57:25 AM
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Default Re: Onanstandby generator 50 5KW3 phase 19820

Wire 63 goes on terminal 63. With the jumper wire going to H5. Jumper to H3 is for another voltage.120/208 3 phase which you have changed. You no longer need H3. The jumper from 63 will now go to H5
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Old 06-05-2017, 03:25:19 PM
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Default Re: Onanstandby generator 50 5KW3 phase 19820

Going by the schematic inside my generator it matches the schematic y'all have sent me the reason I ask about controllers wires out I assumed there was a real relay in the transfer switch that told the generator to only excite if it notice no power at the transfer switch
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Old 06-05-2017, 04:58:16 PM
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Default Re: Onanstandby generator 50 5KW3 phase 19820

The transfer switch would only tell it to start and stop. Thru B+and RMT. The power production is all done at the generator. You need to download manual 900-0150. Should be on the twinslan list on this site.
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Old 06-05-2017, 05:16:56 PM
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Default Re: Onanstandby generator 50 5KW3 phase 19820

Thanks Billy Really appreciate your help
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Old 06-05-2017, 09:38:57 PM
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Default Re: Onanstandby generator 50 5KW3 phase 19820

Is exciter breaker on the control panel switched on?
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Old 06-06-2017, 07:46:31 PM
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Default Re: Onanstandby generator 50 5KW3 phase 19820

Thanks for your support and help generators making power I'll change the points today because the old ones were totally burn up does anybody know what the gap sets to on The points it's natural gas how do idol this generator up The governor is working but it won't Riv up to 1800 RPM's and does anybody know what the Dwale should set it on these points
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Old 06-06-2017, 10:23:15 PM
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Default Re: Onanstandby generator 50 5KW3 phase 19820

Since I know it runs and puts out power I replaced the point gotdwell close to what I think to right does anybody know if a regular automotive cool with an external resister will work on my unit does this unit have a resistor built in for the coal somewhere on it or do I need to put a resistor on it I cannot find alternate part number for the does anybody know if a regular automotive cool with external resistor will work on my unit does this unit have a resistor built in for the Coulp somewhere only or do I need to put a resistor on it I cannot find alternate part number for the Coil that come on the ford 460 does the belt driven governor use oilif so what type of role I cannot find a manual on this generator once again thanks for all y'all's help maybe I can help y'all sometime
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Old 06-07-2017, 06:15:42 AM
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Default Re: Onanstandby generator 50 5KW3 phase 19820

I'm attaching the factory production order and wiring diagrams for your generator.

You can download manuals here: http://www.twinslan.net/~n0nas/manuals/onan/

928-0121
900-0150

The wiring diagram does not show an ignition resistor, so you should be able to use a standard 12 volt coil.
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File Type: pdf 550EN15R25432D.pdf (31.8 KB, 9 views)
File Type: pdf 612-5301.pdf (148.4 KB, 11 views)
File Type: pdf 612-5311.pdf (143.9 KB, 9 views)
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Old 06-07-2017, 08:02:08 AM
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Default Re: Onanstandby generator 50 5KW3 phase 19820

The engine is a standard Ford 460. With a few things Onan added to make it a generator engine. The gov uses the same oil as the engine.The belt should be a little lose. To tight and you will destroy a 900.00 dollar gov. The service manual will explain all. Be sure and study it before you cost yourself some money.

928-0121 will have the information you need.
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Old 06-17-2017, 11:16:15 PM
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Default Re: Onanstandby generator 50 5KW3 phase 19820

Check my wire in three or four times wired right when I turned excited broke her own shows The voltmeter maxed out votes on the lower scale and trips the exciter breakerevery time with a severe load

---------- Post added at 10:14:22 PM ---------- Previous post was at 10:13:12 PM ----------

Breaker shows

---------- Post added at 10:16:15 PM ---------- Previous post was at 10:14:22 PM ----------

It's like the voltage regulator is not working
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Old 06-17-2017, 11:23:16 PM
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Default Re: Onanstandby generator 50 5KW3 phase 19820

Generally we tell anyone who will listen, to check and fix the set before they rewire it. Now you don't know if it was broken or your wired it wrong.

You can disconnect the windings and then check them with a megger....then re-assemble.
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