Re: More red hot resistor

Posted by John T on November 22, 2005 at 19:38:45 from (66.244.90.98):

In Reply to: Re: More red hot resistor posted by Bob M on November 22, 2005 at 18:50:55:

I enjoy this sparky chat so had to jump in. Probably is a wiring error, if part of the Field windings in the genny were shorted, I dont see any current flow through the light switch resistor because its (if wired right) grounded at the switch end PLUS grounded at the gennys short circuit and theres no voltage potential source to cause current flow in a path thats the same (ground) potential on BOTH ends. The normal source voltage is from the gennys Armature post which creates current flow to and through the field windings and then the light switch resistor to ground, so if the field were shorted, I agree with Bobs thinking the genny aint gonna put out a great amount (can some on the poles residual magnetism) and there would be even less field and light switch resistor current then if all was okay. I.E., I think if there were a shorted field, the light switch resistor would see less NOT more current Make sense????????/

I think thats what I think lol its late n Im cornfuzedddddd. I can envision theres a hot voltage source getting to that low ohm field current resistor and 6 or 12 volts across such a low impedance could indeed make her glow red till she burns up. I think the typical field currents like in the 1 and 2 amps range but if you put 6 or 12 volts across the light switch resistor I think thats more current then it can handle, as its designed to be in series with the field windings NOT have battery voltage across it only. I gottaaaaaa go with its wired wrong or a hot wire is shorted to it.

Thats my story n Im stickin to it fer now lol

What yall think??

John T

Follow Ups:

• Re: More red hot resistor Janicholson 06:19:43 11/23/05 (2)
  • Re: More red hot resistor John T 11:23:01 11/23/05 (1)
    • Re: More red hot resistor Janicholson 12:20:37 11/23/05 (0)

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