低压设计培训资料2025 年 7 月编 撰：王志松1．电气名词介绍............................................................................................................................31.1 低压、高压........................................................................................................................31.2 断路器................................................................................................................................31。2.1 断路器的类型：..................................................................................................31。2。2 断路器的安装方式：.......................................................................................41.2.3 断路器的保护：.....................................................................................................51。2.4 断路器的三个工作状态（合闸、分闸、跳闸).................................................71。2。5 断路器的附件...................................................................................................81。2。6 电弧和断路器的短路分断能力.......................................................................91.3 电动机回路.......................................................................................................................101.3.1 AC、DC 工作类别...............................................................................................101.3。2 接触器................................................................................................................111.3。3 热继电器............................................................................................................111。3.4 电动机启动的元器件配合分类：一类配置和二类配置................................121.4 配电柜..............................................................................................................................121。4.1 配电柜的防护等级..............................................................................................
