摘要
自2007年铁岭清河特钢"4.18"事故以来,相关起重机标准、规范修订时均新增了对起重机起升机构电动机定子异常失电保护功能的要求,防止类似事故再次发生。本文对照相关法规标准的要求,以几种常见的起重机起升机构电动机定子异常失电保护电路为例,分析了其功能实现的逻辑关系,并对目前存在的问题提出了相应的改进建议。
Since the accident of Tieling qinghe special steel co. LTD on April 18th 2007 happened, the relevant crane standards and specifications have been revised, and the new requirements for the protection function of the motor stator abnormal loss of power have been added to prevent similar accidents from happening again. According to the requirements of relevant regulations and standards in this paper, taking several common protection circuits of motor stator abnormal power loss of lifting mechanisms for example, we analyze the function realization of logical relationship and put forward some suggestions for improving the existing problems.
出处
《中国特种设备安全》
2018年第2期16-19,共4页
China Special Equipment Safety
关键词
定子异常失电保护
正反向接触器
调速装置
起重机
Motor stator abnormal power failure Forward and reverse contactor Speed adjusting device Crane