6SE7031-6EB87-2DA16SE7031-6EB87-2DA1
【簡單介紹】
【詳細說明】
6SN1111-0AA00-0CA1
6SN118-0DM33-0AA2
A06B-6066-H008
A06B-6079-H104
A06B-6079-H206
A06B-6114-H105
DCD60X7/14
INNIS21
INNPM12
Kontron cp6000
TSXDEY64D2K
UD74EPS
6DD1600-0AC0
6DD1600-0AE2
廈門航拓電氣有限公司 主營:PLC,DCS,伺服數控系列全系列
CPU,板卡,AB,Siemens,ABB,FANUC,Rexroth,
Westinghouse, Schneider,GE,FOXBORO
*,詳情請咨詢
==========================================
吳工: Phone:
騰訊 :1665532815 :
地址:廈門市思明區仙岳路582號嘉怡園16樓A單元
===========================================
當合閘回路出現故障時進行分閘,或短路事故未排除,又進行合閘(誤操作),這時就會出現斷路器反復合分閘,不僅容易引起或擴大事故,還會引起設備損壞或人身事故,所以高壓開關控制回路應設計防跳。防跳一般選用電流啟動,電壓保持的雙線圈繼電器。電流線圈串接于分閘回路作為啟動線圈。電壓線圈接于合閘回路,作為保持線圈,當分閘時,電流線圈經分閘回路起動。如果合閘回路有故障,或處于手動合閘位置,電壓線圈起啟動并通過其常開接點自保持,其常閉接點馬上斷開合閘回路,保證斷路器在分閘過程中不能馬上再合閘。防跳繼電器的電流回路還可以通過其常開接點將電流線圈自保持,這樣可以減輕保護繼電器的出口接點斷開負荷,也減少了保護繼電器的保持時間要求。
TS4513N1820E200
SS-NV53-FNT12
SR-HMI
VF3130-4DZ1-02
OEM750X-M2
LXM15LD21M3
TS5645N122
MSDA5A3A1A
MSDA083A1A
6SE7021-8TB51
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