140CPU53414B
140CPU53414A
a06b-6091-h002
特价现货供应
PLC:Allen-Bradley(AB)全系列,Schneider(施耐德)140,GE 通用电气 IC693 IC697 ,西门子 300 400 PLC
DCS:西屋 ovation,福克斯波罗 ,ABB 贝利 INFI90,TRICONEX ESD
伺服驱动/电机:FANUC,Rexroth,KUKA, ABB 机器人,Schneider LX17
板卡:摩托罗拉 Rexroth ABB KUKA Siemens GE MOORE Siemens
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厦门航拓电气有限公司
xiamen hangtuo Electric Co., Ltd.
地 址:厦门市思明区仙岳路582号嘉怡园16楼 A单元
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(诚信经营)(质量可靠)(进口正品)(顺丰空运)
⑴短路点在端部。可用绝缘材料将短路点隔开,也可重包绝缘线,再上漆重烘干。
⑵短路在线槽内。将其软化后,找出短路点修复,重新放入线槽后,再上漆烘干。
⑶对短路线匝少于1/12的每相绕组,串联匝数时切断全部短路线,将导通部分连接,形成闭合回路,供应急使用。
⑷绕组短路点匝数超过1/12时,要全部拆除重绕。
绕组断路
由于焊接不良或使用腐蚀性焊剂,焊接后又未清除干净,就可能造成壶焊或松脱;受机械应力或碰撞时线圈短路、短路与接地故障也可使导线烧毁,在并烧的几根导线中有一根或几根导线短路时,另几根导线由于电流的增加而温度上升,引起绕组发热而断路。一般分为一相绕组端部断线、匝间短路、并联支路处断路、多根导线并烧中一根断路、转子断笼。
1.故障现象
电动机不能启动,三相电流不平衡,有异常噪声或振动大,温升超过允许值或冒烟。
2.产生原因
⑴在检修和维护保养时碰断或制造质量问题。
⑵绕组各元件、极(相)组和绕组与引接线等接线头焊接不良,长期运行过热脱焊。
⑶受机械力和电磁场力使绕组损伤或拉断。
⑷匝间或相间短路及接地造成绕组严重烧焦或熔断等。
3.检查方法
⑴观察法。断点大多数发生在绕组端部,看有无碰折、接头出有无脱焊。
⑵万用表法。利用电阻档,对“Y”型接法的将一根表棒接在“Y”形的中心点上,另一根依次接在三相绕组的首端,无穷大的一相为断点;“△”型接法的短开连接后,分别测每组绕组,无穷大的则为断路点。
⑶试灯法。方法同前,等不亮的一相为断路。
⑷兆欧表法。阻值趋向无穷大(即不为零值)的一相为断路点。
⑸电流表法。电机在运行时,用电流表测三相电流,若三相电流不平衡、又无短路现象,则电流较小的一相绕组有部分短断路故障。
⑹电桥法。当电机某一相电阻比其他两相电阻大时,说明该相绕组有部分断路故障;
⑺电流平衡法。对于“Y”型接法的,可将三相绕组并联后,通入低电压大电流的交流电,如果三相绕组中的电流相差大于10%时,电流小的一端为断路;对于“△”型接法的,先将定子绕组的一个接点拆开,再逐相通入低压大电流,其中电流小的一相为断路。
⑻断笼侦察器检查法。检查时,如果转子断笼,则毫伏表的读数应减小。
IC676ACC002 | Protective Caps - Male (For unused I/O connectors and/or outgoing bus & power connectors) - Qty 5 |
IC676ACC003 | Protective Caps - Female (For unused incoming power connectors) - Qty 5 |
IC676ACC004 | Profibus Network Termination Resistor |
IC676ACC005 | Profibus Network Tee |
IC676CBLPBB003 | IP67 Profibus Cordset - 0.3 Meters |
IC676CBLPBB005 | IP67 Profibus Cordset - 0.5 Meters |
IC676CBLPBB010 | IP67 Profibus Cordset - 1 Meter |
IC676CBLPBB020 | IP67 Profibus Cordset - 2 Meters |
IC676CBLPBB050 | IP67 Profibus Cordset - 5 Meters |
IC676CBLPBB100 | IP67 Profibus Cordset - 10 Meters |
IC676CBLPBF020 | IP67 Profibus Cordset - 2 Meters - Female Connector w/Leads |
IC676CBLPBF050 | IP67 Profibus Cordset - 5 Meters - Female Connector w/Leads |
IC676CBLPBF100 | IP67 Profibus Cordset - 10 Meters - Female Connector w/Leads |
IC676CBLPBM020 | IP67 Profibus Cordset - 2 Meters/ Male Connector w/Leads |
IC676CBLPBM050 | IP67 Profibus Cordset - 5 Meters - Male Connector w/Leads |
IC676CBLPBM100 | IP67 Profibus Cordset - 10 Meters - Male Connector w/Leads |
IC676CBLPNFLY010 | VersaMax IP IP67 PROFINET Cordset with Flying Leads - 1 meters |
IC676CBLPNFLY020 | VersaMax IP IP67 PROFINET Cordset with Flying Leads - 2 meters |
IC676CBLPNFLY050 | VersaMax IP IP67 PROFINET Cordset with Flying Leads - 5 meters |
IC676CBLPNFLY100 | VersaMax IP IP67 PROFINET Cordset with Flying Leads - 10 meters |
IC676CBLPNRJ45010 | VersaMax IP IP67 PROFINET Cordset with RJ45 Connector - 1 meters |
IC676CBLPNRJ45020 | VersaMax IP IP67 PROFINET Cordset with RJ45 Connector - 2 meters |
IC676CBLPNRJ45050 | VersaMax IP IP67 PROFINET Cordset with RJ45 Connector - 5 meters |
IC676CBLPNRJ45100 | VersaMax IP IP67 PROFINET Cordset with RJ45 Connector - 10 meters |
IC676CBLPWB003 | IP67 Power Cordset - 0.3 Meters |
IC676CBLPWB005 | IP67 Power Cordset - 0.5 Meters |
IC676CBLPWB010 | IP67 Power Cordset - 1 Meter |
IC676CBLPWB020 | IP67 Power Cordset - 2 Meters |
IC676CBLPWB050 | IP67 Power Cordset - 5 Meters |
IC676CBLPWB100 | IP67 Power Cordset - 10 Meters |
IC676CBLPWF020 | IP67 Power Cordset - 2 Meters - Female Connector w/Leads |
IC676CBLPWF050 | IP67 Power Cordset - 5 Meters - Female Connector w/Leads |
IC676CBLPWF100 | IP67 Power Cordset - 10 Meters - Female Connector w/Leads |
IC676CBLPWM020 | IP67 Power Cordset - 2 Meters - Male Connector w/Leads |
IC676CBLPWM050 | IP67 Power Cordset - 5 Meters - Male Connector w/Leads |
IC676CBLPWM100 | IP67 Power Cordset - 10 Meters - Male Connector w/Leads |