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Old 10-15-2013
Ulfilas Ulfilas is offline
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Re: Depolarized VP2030 alternator?

Finally I understood what the electrician meant with "polarizing".
My alternator has an additional field which is initially excited in order to start its electricity production.
He connected tentatively this field (D) to the +B (Batery) through a small 6 Watt 12V bulb.
Once the alternator starts producing energy the volt difference between D and +B dissapears and no more current flows through the bulb.
We suspect a wiring problem cancelling the initial necesary excitation current.

Now the alternator works fine!
I thank the useful advices!.
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