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[求助] 关于电气设备选型 |
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点评
电机回路有热继或马保,不光带热脱扣还有断相保护(相电流不平衡差动) 普通塑壳或微断的热脱扣级别时间短,会导致电机重载起动误动
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|Archiver|手机版|小黑屋|《建筑电气》杂志官方论坛
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