Re: generator help

Posted by Technoid on October 23, 2005 at 07:55:36 from (209.139.110.155):

In Reply to: generator help posted by Ronnie269 on October 22, 2005 at 05:09:50:

I work on generators at my job. Depending on the number of poles, a generator will produce 60 cycles at either 1800 or 3600 rpm. This is a factor that does not change. The freq will change with the rpm. It is not possible to loose proportional freq/rpm.You need to have an accurate tach or freq meter. Watch the rpms as the engine loads up. Make sure the governor is maintaining the correct rpm. From what you wrote, it sounds like the voltage regulator or a winding went bad. Most likely a winding since you need more speed. To check the windings, you need an instrument called a meg ohm meter. It a small hand held generator with a crank that puts voltage into the winding. It tests the insulation break down. It reads back from megohms to ohms of short. If you use one, be sure to disconnect the voltage regulator from the circuit.

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