探讨毕业设计三相电源监视(电动机保护器)毕业论文

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1、探讨毕业设计147三相电源监视(电动机保护器)毕业论文探讨毕业设计147三相电源监视(电动机保护器)毕业论文导读：毕业设计147三相电源监视(电动机保护器)毕业论文毕业设计（论文）课题名称：三相电源监视（电动机保护器）学生专业班级：分院：学号：指导教师：2005年5月15日三相电源监视(电动机保护器)摘要：我介绍的是一个电子式三相电源监视器（又称相序保护器、电压继电器以下简称监视器）主要用于交流50/60Hz，额定电压460V以下的电路中，作为对三相电动机输入电源的电压过高、电压过低、缺相、逆相、三相电压不平衡提供继电保护。关键词：电动机三

2、相电源保护电压取样【Abstract】utuallyelectronicofthepoonitor(mutuallyprefaceprotectionthemachine,electricvoltagecallsthemonitorasfolloainlyusedsforfrequencythe50/60Hz,thesumvoltage460Vthefolloutuallymotorinputstheelectricsupplytoleadhigh,theelectricvoltageleadloutually,negativemutual

3、ly,threemutuallyvoltageunbalance.【Keyotor、threemutuallyofthepopling目录摘要（2）第2页共14页一、引言····································································································（4）二、电动机保护装置及其发展趋势························································（5）三、电动机保护在国民经

4、济和节能事业中的重要意义························（6）四、电动机保护器产品介绍····························································3456789探讨毕业设计147三相电源监视(电动机保护器)毕业论文导读：毕业设计147三相电源监视(电动机保护器)毕业论文········（8）（一）串芯式电流型保护器··································································（8）1、电机绕组烧毁

5、原因及保护措施··················································（8）（1）过热保护··················································································（8）（2）过流保护··················································································（8）（3）断相保护······················

6、····························································（8）2、对电动机保护的要求··································································（9）3、设计线路图··················································································（9）4、电路工作原理······························

7、··············································（10）（二）三相电源型保护电路的设计····················································（10）1、缺相保护电路············································································（11）2、三相不平衡过压欠压保护电路················································（

8、12）3、逆相保护电路············································································（1