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分享起重机电器常见的电气维护问题

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分享起重机电器常见的电气维护问题

发布日期:2018-09-07 作者: 点击:

分享起重机电器常见的电气维护问题

立博体育ZAIQIZHONGJIDERICHANGSHEBEIGUANLIZHONG,DIANDONGJI(TEZHIRAOXIANDIANJI)DEGUZHANGHEWEIHUYIZHISHIKUNRAOYONGHUDEJISHOUWENTI,ZHENDUIZHEIYIQINGKUANG,XIAOBIANXIANGHEDAJIALIAOYILIAOWENTICHANSHENGDEYUANYINHEXINGZHIYOUXIAODEJIEJUEBANFA。

在电动机的普通控制方案中,起重机电器转子串入电阻的目的是调节转速和启动转矩,以优化电机的启动特性,而在启动后,串入的电阻要逐级切除,以使电动机正常运转。

ERCHANGYONGDEDIANZUQIZHUJIQIECHUJUNCAIYONGSHIJIANJIDIANQIKONGZHIWANCHENG,DANSHICIZHONGFANGFADEKONGZHIJIEGUODUIQIZHONGJISHANGZHUYAOSHEBEIHUICHANSHENGYIDINGDESHANGHAI!

立博体育YOUYUQISHENGHUOXIAJIANG,ZHONGZAIHUOQINGZAISHIDEJIASUDUBUTONG,DIANDONGJIJIASUDAOQUANSUDESHIJIANJIUHUIBUTONG,YINCIDIANDONGJIZHUANZIDIANZUQIQIECHUDESHIJIANDIANYEYINGGAIBUTONG。DANSHIJIANJIDIANQIWUFAJINXINGJIASUDUPANDUAN,ZAISHIYONGSHI,RENMENTONGCHANGGENJUJINGYANDIAOZHENGSHIJIANJIDIANQIDESHIJIANSHEDINGZHI,ZHEIYANGJIUHUIZAOCHENGTONGYIFUZAIQISHENG、XIAJIANGSHIDIANDONGJIZHUANZIDIANZUQIQIECHUDIANBUTONG:

立博体育SHIJIANDIAOZHENGZHIDASHI,YOULIYUQISHENGJIGOUZAIQISHENGSHINENGGOUBAOZHENGZUGOUSHIJIANZAIYIDUANDIANDONGJITEXINGXIACHONGFENJIASU,DADAOCIDUANDIANDONGJITEXINGXIADASUDUHOUZAIJINXINGZHUANZIDIANZUQIQIECHU,JINXINGDIANDONGJITEXINGQIEHUAN,BAOZHENGDIANZUQIQIECHUSHIDEDIANDONGJICHONGJIDIANLIUBUCHAOGUOYUNXUDEDAZHI。DANZAIQISHENGJIGOUXIAJIANGSHI,YOUYUJIASUDUDA,ZAITONGYISHIJIANSHEDINGZHINEI,DIANDONGJIYIJIASUDAOFADIANZHIDONGZHUANGTAI,DIANDONGJIYUNXINGZAICHAOGUOTONGBUZHUANSUHENDADEZHUANGTAIXIAYUNXING,YECHAOGUOLEXIANGGUANJIANSUQIDENGCHUANDONGSHEBEIDESUDUYUNXUZHI,DUISHEBEIJIDIANDONGJICHANSHENGSUNHAI。

时间调整值小时,有利于起升机构在下降加速时尽快切除电阻器防止机构超速,但在起升时,由于加速时间不足,电动机转子电阻器切除时,电动机没能得到足够的加速,电阻器切除时的电动机冲击电流会远远超过电动机允许大电流值,起重机电器立博体育产生大电流和大转矩会对电动机和机械传动设备产生损害。

起重机电器


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