Physics, asked by julius7443, 10 months ago

Why the pull-in winding in the operating solenoid of a pre-engaged starter motor

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Answered by tanmoyvestige

0

The solenoid has two windings - the pull-in winding 'A' which is about 0.4 ohms, and the hold-in winding 'B' which is about 1.2 ohm. ... Because the pull-in winding is passing about 30 amps through the motor, the pinion starts to turn slowly as it moves towards the flywheel, which aids its engagement.

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