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RE: Polarity and starter

To: <triumphs@autox.team.net>
Subject: RE: Polarity and starter
From: "Randall" <tr3driver@comcast.net>
Date: Thu, 7 Jul 2005 05:53:16 -0700
> A starter motor is a series wound motor,  it will spin the same direction
> regardless of polarity.

Just to be pedantic, the same thing is true of parallel-wound motors.  Only
permanent magnet DC motors "care" about supply polarity.

Series-wound motors are also known as "universal" motors ... they will even run
on AC !  They produce the best starting torque, so they're found in many places
that need good starting torque like Skil saws, drill motors and sewing machines;
almost every AC application that uses brushes.

Thus ends the useless trivia lesson for the day.
Randall




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