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                                        產品線 > 直流傳動 > 評測

                                        PLC系統中的主要干擾源

                                        PLC系統的正常供電電源均由電網供電。由于電網覆蓋范圍廣,它將受到所有空間電磁干擾而在線路上感應電壓和電路。尤其是電網內部的變化,入開關操作浪涌、大型電力設備起停、交直流傳動裝置引起的諧波、電網短路暫態沖擊等,都通過輸電線路傳到電源原邊。 [全文]

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                                        顶呱刮彩票怎么兑奖
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