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Old 05-25-2012, 04:25 PM   #21
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Gen

Have you checked to make sure it is at 1800 rpm?
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Old 05-25-2012, 05:10 PM   #22
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isnt 60hz typically for 120V units?
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Old 05-25-2012, 06:15 PM   #23
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1800 rpm
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Old 05-25-2012, 06:15 PM   #24
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60 hz is the us standard 120 or 240 volts. Just like your house
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Old 05-25-2012, 09:16 PM   #25
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Did you plug the bridge rectifier into the wall.
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Old 05-26-2012, 09:44 AM   #26
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I hope that 100 hours of troubleshooting wasn't billed to your account!

Cut your losses and buy an SE350 exciter module and an XR500D for about 5 hours worth of troubleshooting:

online voltage regulator and static exciter catalog
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Old 05-26-2012, 12:14 PM   #27
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This thread makes me chuckle. Hire a good electrician!

Elwin
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Old 05-26-2012, 04:29 PM   #28
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This thread makes me chuckle. Hire a good electrician!

Elwin
By the read of it, there aren't any around. A hundred hours to "troubleshoot?"
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Old 05-26-2012, 06:13 PM   #29
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hahaha

Elwin
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Old 05-30-2012, 08:58 AM   #30
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definitely a possibility
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Old 06-06-2012, 07:51 AM   #31
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I have been through two different Onan Service techs and one independent
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Old 06-06-2012, 07:51 AM   #32
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Update...another 15 hpurs of tech time and The stator was removed and most of the wires were severely kinked a few were almost entirely broken through. When the tech replaced it originally he must have caught the wires during assembly. When checking resistance with a Fluke meter there were still enough connection to measure the resistance as good due to the low current of the meter. A new stator was installed and the unit reassembled. We now have 240V. However as the load begins to be increased even as little as 5 amps the voltage starts to drop. At about 30 amps the voltage is down to 110 V. I imagine it is in the transormer regulation circuit or one of the other parts in the control. Any thought...At least we are getting close.
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Old 06-06-2012, 06:18 PM   #33
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At least we are getting close.
To what?
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Old 06-06-2012, 07:21 PM   #34
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To what?
The price of a new generator if he's paying by the hour.
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Old 06-06-2012, 07:22 PM   #35
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Wow, somebody messed up a stator install. Wish I would have thought of that.

What have you got between s-1 and s-2 before during and after you remove the load?
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Old 06-08-2012, 08:38 AM   #36
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Its fixed. The regulation transformer leads were swapped so it was decreasing the voltage instead of increasing it when they took the load. It was all due to the tech damaging the wires when he replaced the stator originally. I didn't pay for all the extra hours or parts they threw at it. I held them to the original estimate. In fact I deducted 30% from the original estimate for being a pain in my ass.

Total to date:

Technician time about 150 hours including there travel from Sarasota
2 Stators
3 Rotors
Regulation transformer
2 Diode Bridges
2 Exciter rotor and stator
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