【Daily Topic】【Electrical Edition 20170420】
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Participation reward: 2 Wealth. Correct reward: 6 wealth. Multiple-choice question: If the contactor does not release, the possible reason could be ( ). A. Adhesion of the contacts B. Power outage to the coil C. The reset spring becoming stretched and losing its elasticity D. The armature losing its magnetism. A
The AC contactor does not release; the possible reasons are (A) A. Contactor contacts sticking together, B. The coil being powered off, C. The return spring stretching out and losing its elasticity, D. The armature losing its magnetism