1746-C9 |
1746-C9 |
1746-C9 |
固體繼電器由三個部分組成:輸入(控制電路)部分、隔離(或耦合)部分和輸出(或負載電路)部分。
選擇固態(tài)繼電器時,除了要看負載類型、輸入特性、輸出電壓、瞬態(tài)電壓和dv/dt 參數(shù)之外,還需兼顧其它特性:
在低電壓要求信號失真下可選用采用場效應管作輸出器件的直流固態(tài)繼器;
具體使用時,控制信號和負載電源要求穩(wěn)定,波動不應大于10%,否則應采取穩(wěn) 壓措施。
●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。
固態(tài)繼電器開路且負載端有電壓時,輸出端會有一定的漏電流,在使用或設計時應注意。
固態(tài)繼電器失效更換時,應盡量選用原型號或技術參數(shù)完全相同的產(chǎn)品,以便與原應用線路匹配,保證系統(tǒng)的可靠工作。
分析考慮固態(tài)繼電器的輸出電壓降、輸出漏電流、絕緣耐壓等電氣特性,熱阻、工 作于儲存溫度、耐潮濕、氣密性等氣候環(huán)境特性,耐振動、沖擊等機械環(huán)境特性,重量、尺寸、接線端方式等物理特性是否符合使用要求。
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