【Daily Topic】【Electrical Edition 20170328】
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Participation reward: 2 Wealth. Correct reward: 8 wealth. Multiple-choice question: Three-phase squirrel-cage motors use autotransformers for reduced-voltage starting; they are used in motors connected in ( ) configuration during normal operation. A、Triangle B、Star C、Both are acceptable D、Neither is acceptable C
Three-phase squirrel-cage motors use autotransformers for reduced-voltage starting, and are motors that employ a (C) connection mode during normal operation. A、Triangle B、Star C、Both A and B D、Neither A nor B