like, what's your phase? [RE-wrenches]

[Drake Chamberlin]

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>Any of you guys have what you describe below in a graphic representation?
>
>thanks,
>marco

The wave form is shown on Fig. 1-45, III of the American Electrician's 
Handbook.

Drake



>Hello Wrenches,
>
>Sorry to further bore you with this subject, that is of little practical
>value, since two phase systems are not being specified for modern
>installations.  But for the sake of accuracy, this follow up is necessary
>since I'd speculated that two phase systems give 2 maximum power peaks in
>the first 90 degrees, then none for 270.
>
>Thanks to Jeff Newmiller and Bill Brooks, we have a better picture of a 2
>phase system.  The combination of two single phase sine waves give a two
>phase motor 4 peaks every rotation, one every 90 degrees.  With 2 single
>phase windings acting together, each winding gives a maximum power peak
>every 180 degrees.  The two combined at 90 degrees apart produce a pulse
>every 90 degrees.  One can see why this sequence would look attractive to
>early designers.
>
>I hope this is a better explanation.
>
>
>-Drake
>
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