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Error in book?

icor1031

Apr 27, 2010
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From "Practical Electronics for Inventors"

Shouldn't it be 0v and not 240v, because A and B are out of phase?

Thanks.


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(*steve*)

¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
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Jan 21, 2010
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Ah, but voltage is a difference between what you see at two points, so if you plot A - B you will get what they label as AB.

since B = -A, A - B = A - (-A) = A + A = 2 * A

Note that this relationship is not as simple in cases where there is three phase power.
 
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