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Bruce[_3_] Bruce[_3_] is offline
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First recorded activity by BoatBanter: Feb 2009
Posts: 503
Default Lots of electrical ignorance here

On Mon, 9 May 2011 12:35:01 -0400, "Wilbur Hubbard"
wrote:

Some Rube posted that current from an alternator never goes to zero.

WRONG.

1) an alternator produces alternating current.

2) alternating current alternates directions.

3) every time the current reverses, it MUST stop and go to zero.

4) if it did not stop and go to zero it could not reverse - it could not
alternate.


When you rectify this stop-and-go current through a bridge setup of diodes,
all that happens is the direction of the current is is made to flow the same
direction via the correct placement of diodes which allow current one way
but not the other. However, re-routing the current to all the same direction
(DC) does not and cannot eliminate those finite periods of time when the
original alternating current stops and reverses directions. This alternating
current is produced by the north and south poles lines of flux cutting
through a coil of wire. It goes one way, stops between poles, and then goes
back the other way.

Walk forward, then walk backward. There will be a finite period of time when
you're not moving because you have completely stopped when you reversed
directions. You can never eliminate the stop.

Wilbur Hubbard


Willy-boy you are certainly correct that "Lots of electrical ignorance
here" but unfortunately it is all on your side of the fence. In
another post I have taken the trouble of explaining how a three phase
alternator (the kind found in a car or boat) works. I even provide a
web site address with pictures if you are having troubles with the big
words.

Do try to visit the site and look at the pretty pictures before you
continue on demonstrating how stupid you really are.

Cheers,

Bruce