维修电机1FL6094-1AC61-0LB1抱闸卡死
咨询:139-2277-5676,甄女士
西门子电动机应用广泛,但通过长期运行后,会发生各种故障,及时判断故障原因,进行相应处理,是防止故障扩大,***设备正常运行的一项重要的工作。通电后电动机不能转动,但无异响,也无异味和冒烟.故障原因电源未通(至少两相未通);熔丝熔断(至少两相熔断);过流继电器调得过小;控制设备接线错误。电动机空载电流不平衡,三相相差大1.故障原因重绕时,定子三相绕组匝数不相等;绕组首尾端接错;电源电压不平衡;绕组存在匝间短路、线圈反接等故障。2.故障排除重新绕制定子绕组;检查并纠正;测量电源电压,设法消除不平衡;峭除绕组故障、电动机空载,过负载时,电流表指针不稳,摆动1.故障原因笼型转子导条开焊或断条;绕线型转子故障(一相断路)或电刷、集电环短路装置接触不良。2.故障排除查出断条予以修复或更换转子;检查绕转子回路并加以修复。电动机空载电流平衡,但数值大.1.故障原因修复时,定子绕组匝数减少过多;电源电压过高;Y接电动机误接为Δ;电机装配中,转子装反,使定子铁芯未对齐,有效长度减短;气隙过大或不均匀;大修拆除旧绕组时,使用热拆法不当,使铁芯烧损。.故障排除重绕定子绕组,恢复正确匝数;设法恢复额定电压;改接为Y;重新装配;更换新转子或调整气隙;检修铁芯或重新计算绕组,适当增加匝数。
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