1746-IV8
1746-IV81746-IV8漏電保護器工作原理雖然比較簡單,但在實際使用中會出現(xiàn)這樣或那樣的錯誤,造成不必要的誤動或拒動,下面介紹一下售后服務中遇到的常見的幾個實例。
圖2是因安裝人員的不規(guī)范接線,將該插座的零線N端子誤連接上保護接地(PE)端子,如圖2中b所示,當使用該插座時,電流不經(jīng)過零線而經(jīng)過保護接地線返回電源,造成漏電保護器動作。改正方法見如圖2中a所示。
●業(yè)從事(DCS系統(tǒng))(機器人系統(tǒng))(大型伺服控制系統(tǒng))模塊 備件銷售廈門[泰尼電氣有
廈門泰尼備件解決方案銷售中心:
轉子流量計在工業(yè)生產(chǎn)過程中應用較廣,可以測量多種介質的流量,特別適用于中小管徑和低雷諾數(shù)的中小流量測量。轉子流量計結構簡單,靈敏度高,量程比寬(10:1),壓力損失小且恒定,對直管段的要求不高,刻度近似線性,價格便宜,使用維護簡便。但儀表受被測介質密度、粘度、溫度、壓力等因素的影響,其精度一般在1.5級左右。
圖3誤用了三相三線制漏電保護器,因零線不經(jīng)過漏電保護器,漏電保護器檢測到的不是漏電電流而是三相不平衡電流,故在三相線路中只要有一相接通任意負載,電流就遠遠超過漏電動作電流而跳閘,改正方法是將漏電保護器換成三相四線漏電開關。
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