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Administrator Administrator_at_RAY__RMC__NAUTECH at ccmail.eo.ray.com
Thu Apr 3 07:56:22 GMT 1997


AHhum, Let me politely step in and remind each of you gentlemen that an
alternator produces alternating current and a generator produces pulsating
direct current, or alternating DC. Each requires "excitation" to operate.
The permanate magnante generators do not require excitation.

just my .0000000000000000003 x 10^-100000023 cents worth.

GMD


At 07:29 AM 4/2/97 -0600, you wrote:
>>
>>Alternators need a battery, where as the generator does not, so if you have
>>a totally dead battery, the alternator will not have voltage in the field
>>coils to start charging. The Generator, has magnets, so, it needs no field
>>excitation to get it going.
>
>Sandy .... respectfully disagree -- in both the alternator and
>the generator, the "field" magnetism comes from battery voltage.
>Now I'm into the *fuzzy* memory part, but seems that in the
>generator (this part is right) the field is the stator and
>the high current comes from the rotor/commutator, whereas
>(I think) the alternator is the opposite: the *field* magnetism
>is produced in the spinning rotor and the output cometh from
>the stator (???).
>
>At any rate, 'tis not true that either have permanent magnets.
>
>Tom Cloud <cloud at peaches.ph.utexas.edu>
>
>
>


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