Air motor drive unit with gear reducer.

空气马达与齿轮减速驱动装置。

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Since HSY requires dc magnetic field, an exciter with control circuitry is needed in addition to the conventional PMSY drive unit when employed as a motor.

HSY作为电动机使用时，由于需要直流磁场，与普通pmsy的驱动单元相比，应额外增加一个励磁电路。

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The low inertia DC drive motor is supplied by a quick thyristor unit.

低惯量的直流传动电动机由快速可控硅装置供电。

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The motor and drive unit are assembled at GM's Baltimore operations plant in White Marsh, Md.

ENGADGET: Chevy Spark EV rated most efficient retail car with 82-mile range, 119 MPGe

Last week, the plant celebrated Spark EV motor production, marking the first time a major U.S. auto manufacturer has designed and built both a complete electric motor and drive unit for a modern electric vehicle in the United States.

ENGADGET: Chevy Spark EV rated most efficient retail car with 82-mile range, 119 MPGe

The drive unit and motor will be assembled of U.S. and globally sourced parts at GM's White Marsh, Md.

ENGADGET: Chevy details 2014 Spark EV: under $25,000, 0-60 in 8 seconds and a 20-minute fast charge