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廈門泰尼電氣有限公司
主營產(chǎn)品： AB模塊PLC |
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廈門泰尼電氣有限公司
主營產(chǎn)品： AB模塊PLC |
| 參考價 | 面議 |
聯(lián)系方式：張亮查看聯(lián)系方式
更新時間：2018-04-04 22:28:13瀏覽次數(shù)：360
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140ACO13000---140ACO13000
140ACO13000---140ACO13000
PLC系統(tǒng)中干擾的主要來源及途徑
強電干擾：PLC系統(tǒng)的正常供電電源均由電網(wǎng)供電。由于電網(wǎng)覆蓋范圍廣，它將受到所有空間電磁干擾而在線路上感應電壓。尤其是電網(wǎng)內(nèi)部的變化，刀開關操作浪涌、大型電力設備起停、交直流傳動裝置引起的諧波、電網(wǎng)短路暫態(tài)沖擊等，都通過輸電線路傳到電源原邊。
柜內(nèi)干擾：控制柜內(nèi)的高壓電器，大的電感性負載，混亂的布線都容易對PLC造成一定程度的干擾。
來自信號線引入的干擾：與PLC控制系統(tǒng)連接的各類信號傳輸線，除了傳輸有效的各類信息之外，總會有外部干擾信號侵入。
：張亮（工程師） 專線：
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