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Archive | REF: D3720 V1

Small electric motors

Author: Sylvain ALLANO

Publication date: June 10, 1995 | Lire en français

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    3. Implementation of small drive motors and actuators

    General electromechanical behavior is, of course, similar to that of any electric motor, whatever its power or size. It should be noted, however, that in a small motor, electromechanical characteristics are highly dependent on loss problems (mechanical, Joule and magnetic), since a particularly unfavorable scaling factor is observed compared to a motor of the same structure but with higher power.

    3.1 Electromechanical characteristics

    Small motors generally have no separate or independent excitation. Either the excitation flux is normally generated by permanent magnets, or induction effects (induction motor) or magnetization (variable reluctance motor) are used.

    The electromechanical characteristics of small motors are particularly dependent...

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