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单相交流电度表的结构及接线

发布时间:2017-06-07 09:59:19 分类:新闻动态 来源: 点击:次

单相交流电度表的结构及接线 单相交流电度表的结构及接线 单相交换电度表的结构及接线1.电度表的分类  电度表用于丈量电能。它是生产和使用中数量最多的1种仪表。根据电度表的工作原理不同可分为感应式、电动式和磁电式3种。根据接人电深的性质不同可分为交换电度表和直流电度表,根据侧量对象可分为有功电度表和无功电度表。根据丈量准确度可分为3.0级、2.0级、1.0级、0.5级、0.1级等.根据电度表接人电源相数不同可分为单相电度表和3相电度表。下面就经常使用的感应式交换有功电度表的结构及接线作1介绍.  2.单相交换电度表的结构及接线  (1)单相交换电度表的结构  单相交换感应式电度表的结构如图2.14所示。它的主要组成部份有电压线圈、电流线圈、转盘、转轴、上下轴承、蜗杆、永久磁铁、磁辘、计最器、支架、外壳、接线端钮等.工作时,当电压线圈和电流线圈通过交变电流时,就有交变的 单相交换电度表的结构及接线
1.电度表的分类

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塑料拉伸冲击实验机 单相交流电度表的结构及接线