【Daily Topic】【Electrical Edition 20170416】

2017-04-16View Original

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Participation reward: 2 Wealth. Correct reward: 6 wealth. Multiple-choice question: When a three-phase asynchronous motor uses energy-consuming braking, what will happen when the power supply is cut off? A. Resistance connected in series in the rotor circuit B. Reverse connection of any two stator windings C. Reverse connection of the rotor windings D. Application of direct current to the stator windings D

Reply #22017-04-16

D. Supply direct current to the stator windings

Reply #32017-04-17

D. Supply direct current to the stator windings

Reply #42017-04-17

D. Supply direct current to the stator windings

Reply #52017-04-17

When a three-phase asynchronous motor uses energy-consuming braking, (D) will occur when the power supply is cut off. A. Resistance connected in series in the rotor circuit B. Reverse connection of any two stator windings C. Reverse connection of the rotor windings D. Application of direct current to the stator windings

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【Daily Topic】【Electrical Edition 20170416】

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