Outdoor Power Equipment and Small Engines - Wind Power ELectric Plant is dead
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joe Heck
10-31-09, 03:32 PM
Hi,
New to this forum. Read all the good stuff on flashing the field on a generator to get it running again. I almost tried it but my generator is so old that is does not have diodes. For the field, it has the stator windings connected in series to a large power resistor of about 1 ohm, and then in series with a segmented commutator (part of the rotor). So, the rotor has three rings for the 115/230 volt A.C., then a segmented part for the field (exciter?). I think I should disconnect the stator windings and try to energize them with ,say, 6 volts, but I'd like to hear from others on what I should try. I haven't the foggiest idea on how I'd figure out plus and minus for connecting the battery. The resistor seems good, about 1 ohm, and all the segments on the commutator are under/about 1 ohm, and the field also is pretty low. I had the brushes connected when I tested the field, so I have no specifics, but I'd say it's less than 20 ohms, probably much less, depending on the resistance of the brushes. And yes, the 110/230 volt winding really is part of the rotor/armature, and not part of the stator! Makes it pretty old, I think!
Specifics on the generator:
Wind Power Electric Plant, Newton, Iowa
1800 R.P.M.
Model 8T2, Serial 13491
115/230 Volts A.C., 60 cycle, 1 phase
13.1 Amps
The D.C. portion of the nameplate is blank, except for the R.P.M.
Thanks for any help or advice
Joe Heck
New to this forum. Read all the good stuff on flashing the field on a generator to get it running again. I almost tried it but my generator is so old that is does not have diodes. For the field, it has the stator windings connected in series to a large power resistor of about 1 ohm, and then in series with a segmented commutator (part of the rotor). So, the rotor has three rings for the 115/230 volt A.C., then a segmented part for the field (exciter?). I think I should disconnect the stator windings and try to energize them with ,say, 6 volts, but I'd like to hear from others on what I should try. I haven't the foggiest idea on how I'd figure out plus and minus for connecting the battery. The resistor seems good, about 1 ohm, and all the segments on the commutator are under/about 1 ohm, and the field also is pretty low. I had the brushes connected when I tested the field, so I have no specifics, but I'd say it's less than 20 ohms, probably much less, depending on the resistance of the brushes. And yes, the 110/230 volt winding really is part of the rotor/armature, and not part of the stator! Makes it pretty old, I think!
Specifics on the generator:
Wind Power Electric Plant, Newton, Iowa
1800 R.P.M.
Model 8T2, Serial 13491
115/230 Volts A.C., 60 cycle, 1 phase
13.1 Amps
The D.C. portion of the nameplate is blank, except for the R.P.M.
Thanks for any help or advice
Joe Heck