Re: MD-80 Electrical

Date:         18 Apr 98 00:49:20 
From:         luisma@spainmail.com
Organization: Deja News - The Leader in Internet Discussion
References:   1
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In article <airliners.1998.586@ohare.Chicago.COM>,
  stein1111@aol.com (Stein1111) wrote:

>Can someone help explane " 3 phase" when it comes to a 40KVA  115 volt and
>3 phase output generator.  What does 3 phases do for you?

It means that the output from the generator consists of 3 pairs of wires,
instead of one. By every pair, a sinusoidal AC voltage is applied, being 1/3
of a cycle (120 deg) delayed from the others.

By the sake of simplicity, a wire from every pair is connected to the others,
thus making a reference point, connected to the metallic airframe. This means
that 3 wires (the 3 phases) appear from the generator.

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