6SE7031-6EB87-2DA16SE7031-6EB87-2DA1
【简单介绍】
【详细说明】
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
厦门航拓电气有限公司 主营:PLC,DCS,伺服数控系列全系列
CPU,板卡,AB,Siemens,ABB,FANUC,Rexroth,
Westinghouse, Schneider,GE,FOXBORO
*,详情请咨询
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吴工: Phone:
腾讯 :1665532815 :
地址:厦门市思明区仙岳路582号嘉怡园16楼A单元
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当合闸回路出现故障时进行分闸,或短路事故未排除,又进行合闸(误操作),这时就会出现断路器反复合分闸,不仅容易引起或扩大事故,还会引起设备损坏或人身事故,所以高压开关控制回路应设计防跳。防跳一般选用电流启动,电压保持的双线圈继电器。电流线圈串接于分闸回路作为启动线圈。电压线圈接于合闸回路,作为保持线圈,当分闸时,电流线圈经分闸回路起动。如果合闸回路有故障,或处于手动合闸位置,电压线圈起启动并通过其常开接点自保持,其常闭接点马上断开合闸回路,保证断路器在分闸过程中不能马上再合闸。防跳继电器的电流回路还可以通过其常开接点将电流线圈自保持,这样可以减轻保护继电器的出口接点断开负荷,也减少了保护继电器的保持时间要求。
TS4513N1820E200
SS-NV53-FNT12
SR-HMI
VF3130-4DZ1-02
OEM750X-M2
LXM15LD21M3
TS5645N122
MSDA5A3A1A
MSDA083A1A
6SE7021-8TB51
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