振动和冲击。装有变频器的控制柜受到机械振动和冲击时,会引起电气接触不良。这时除了提高控制柜的机械强度、远离振动源和冲击源外,还应使用抗震橡皮垫固定控制柜外和内电磁开关之类产生振动的元器件。设备运行一段时间后,应对其进行检查和维护。
电气环境
防止电磁波干扰。变频器在工作中由于整流和变频,周围产生了很多的干扰电磁波,这些高频电磁波对附近的仪表、仪器有一定的干扰。因此,柜内仪表和电子系统,应该选用金属外壳,屏蔽变频器对仪表的干扰。所有的元器件均应可靠接地,除此之外,各电气元件、仪器及仪表之间的连线应选用屏蔽控制电缆,且屏蔽层应接地。如果处理不好电磁干扰,往往会使整个系统无法工作,导致控制单元失灵或损坏。 请登陆:输配电设备网 浏览更多信息
防止输入端过电压。变频器电源输入端往往有过电压保护,但是,如果输入端高电压作用时间长,会使变频器输入端损坏。因此,在实际运用中,要核实变频器的输入电压、单相还是三相和变频器使用额定电压。特别是电源电压极不稳定时要有稳压设备,否则会造成严重后果。
工作环境
在变频器实际应用中,由于国内客户除少数有专用机房外,大多为了降低成本,将变频器直接安装于工业现场。工作现场一般有灰尘大、温度高、湿度大的问题,还有如铝行业中有金属粉尘、腐蚀性气体等等。因此必须根据现场情况做出相应的对策
发展历史
变频技术诞生背景是交流电机无级调速的广泛需求。传统的直流调速技术因体积大故障率高而应用受限。
20世纪60年代以后,电力电子器件普遍应用了晶闸管及其升级产品。但其调速性能远远无法满足需要。
中海德(福建)工业设备有限公司
陈陈
手机(微信):15306912905
QQ:3004995626
电话:0591-83969954
R911382240 HCS01.1E-W0008-A-03-A-ET-EC-EC-L3-NN-FW
R911377463 HCS01.1E-W0008-A-03-A-ET-EC-EC-NN-NN-FW
R911347676 HCS01.1E-W0008-A-03-A-ET-EC-EC-S4-NN-FW
R911374301 HCS01.1E-W0008-A-03-A-ET-EC-EM-L4-NN-FW
R911375896 HCS01.1E-W0008-A-03-A-ET-EC-EM-NN-NN-FW
R911376143 HCS01.1E-W0008-A-03-A-ET-EC-EM-S4-NN-FW
R911383799 HCS01.1E-W0008-A-03-A-ET-EC-NN-L3-NN-FW
R911378828 HCS01.1E-W0008-A-03-A-ET-EC-NN-L4-NN-FW
R911376462 HCS01.1E-W0008-A-03-A-ET-EC-NN-NN-NN-FW
R911380938 HCS01.1E-W0008-A-03-A-ET-EC-NN-S4-NN-FW
R911337829 HCS01.1E-W0008-A-03-B-ET-EC-CN-L3-NN-FW
R911345408 HCS01.1E-W0008-A-03-B-ET-EC-CN-L4-NN-FW
R911334776 HCS01.1E-W0008-A-03-B-ET-EC-CN-NN-NN-FW
R911381572 HCS01.1E-W0008-A-03-B-ET-EC-CN-S4-NN-FW
R911394678 HCS01.1E-W0008-A-03-B-ET-EC-CN-S5-NN-FW
R911345395 HCS01.1E-W0008-A-03-B-ET-EC-DA-NN-NN-FW
R911322442 HCS01.1E-W0008-A-03-B-ET-EC-EC-L2-NN-FW
R911382243 HCS01.1E-W0008-A-03-B-ET-EC-EC-L3-NN-AW
R911339624 HCS01.1E-W0008-A-03-B-ET-EC-EC-L3-NN-FW
R911379373 HCS01.1E-W0008-A-03-B-ET-EC-EC-L3-NN-NW
R911331604 HCS01.1E-W0008-A-03-B-ET-EC-EC-L4-NN-FW
R911331037 HCS01.1E-W0008-A-03-B-ET-EC-EC-NN-AA-FW
R911327328 HCS01.1E-W0008-A-03-B-ET-EC-EC-NN-NN-FW
R911375325 HCS01.1E-W0008-A-03-B-ET-EC-EC-NN-NN-NW
R911344064 HCS01.1E-W0008-A-03-B-ET-EC-EC-S4-NN-FW
R911384417 HCS01.1E-W0008-A-03-B-ET-EC-EC-S5-NN-FW
R911388279 HCS01.1E-W0008-A-03-B-ET-EC-EC-S5-NN-NW
R911382244 HCS01.1E-W0008-A-03-B-ET-EC-EC-SB-NN-FW
R911342148 HCS01.1E-W0008-A-03-B-ET-EC-EM-L3-NN-FW
R911338053 HCS01.1E-W0008-A-03-B-ET-EC-EM-L4-NN-FW
R911341528 HCS01.1E-W0008-A-03-B-ET-EC-EM-NN-NN-FW
R911369163 HCS01.1E-W0008-A-03-B-ET-EC-EM-S4-NN-FW
R911391595 HCS01.1E-W0008-A-03-B-ET-EC-EM-SB-NN-FW
R911381647 HCS01.1E-W0008-A-03-B-ET-EC-EP-L3-NN-FW
R911391157 HCS01.1E-W0008-A-03-B-ET-EC-EP-L4-NN-AW
R911378003 HCS01.1E-W0008-A-03-B-ET-EC-EP-L4-NN-FW
R911374271 HCS01.1E-W0008-A-03-B-ET-EC-EP-NN-NN-FW
R911378038 HCS01.1E-W0008-A-03-B-ET-EC-EP-S4-NN-FW
R911390035 HCS01.1E-W0008-A-03-B-ET-EC-EP-SB-NN-FW
R911393598 HCS01.1E-W0008-A-03-B-ET-EC-NN-L3-NN-AW
R911335596 HCS01.1E-W0008-A-03-B-ET-EC-NN-L3-NN-FW
R911379374 HCS01.1E-W0008-A-03-B-ET-EC-NN-L3-NN-NW
R911333490 HCS01.1E-W0008-A-03-B-ET-EC-NN-L4-AA-FW
R911331605 HCS01.1E-W0008-A-03-B-ET-EC-NN-L4-NN-FW
R911331038 HCS01.1E-W0008-A-03-B-ET-EC-NN-NN-AA-FW
R911325246 HCS01.1E-W0008-A-03-B-ET-EC-NN-NN-NN-FW
R911374553 HCS01.1E-W0008-A-03-B-ET-EC-NN-NN-NN-NW
R911340077 HCS01.1E-W0008-A-03-B-ET-EC-NN-S4-NN-FW
R911379375 HCS01.1E-W0008-A-03-B-ET-EC-NN-S4-NN-NW
R911372529 HCS01.1E-W0008-A-03-B-ET-EC-NN-S5-NN-FW
R911372531 HCS01.1E-W0008-A-03-B-ET-EC-NN-SB-NN-FW
R911338288 HCS01.1E-W0008-A-03-B-ET-EC-PB-L3-NN-FW
R911331606 HCS01.1E-W0008-A-03-B-ET-EC-PB-L4-NN-FW
R911331040 HCS01.1E-W0008-A-03-E-S3-EC-NN-NN-AA-FW
R911331725 HCS01.1E-W0008-A-03-E-S3-EC-NN-NN-LF-FW
R911328445 HCS01.1E-W0008-A-03-E-S3-EC-NN-NN-NN-FW
R911374558 HCS01.1E-W0008-A-03-E-S3-EC-NN-NN-NN-NW
R911324323 HCS01.1E-W0008_A-03-B-ET-EC-NN-NN-NN-FW
R911382687 HCS01.1E-W0009-A-02-A-CC-EC-CN-NN-NN-FW
R911347691 HCS01.1E-W0009-A-02-A-CC-EC-DA-NN-NN-FW
R911345872 HCS01.1E-W0009-A-02-A-CC-EC-EC-L3-NN-FW
R911339127 HCS01.1E-W0009-A-02-A-CC-EC-EC-L4-NN-FW
R911336677 HCS01.1E-W0009-A-02-A-CC-EC-EC-NN-NN-FW
R911343315 HCS01.1E-W0009-A-02-A-CC-EC-EM-L3-NN-FW
R911343404 HCS01.1E-W0009-A-02-A-CC-EC-EM-NN-NN-FW |