描述
同时也具有限制起动电流的作用，该线路工作原理如下：合上电源开关QS，按下正转起动按钮SB2，KA3通电并自锁，其常闭触头断开，互锁KA4线圈电路，KA3常开触头闭合，使KM1线圈通电，KM1的主触头闭合，电动机串入电阻接入正序电源开始降压起动，当电动机转速上升到一定值时，KS的正转常开触头KS-1闭合，KA1通电并自锁，接触器KM3线圈通电，于是电阻R被短接，电动机在全压下进入正常运行。
Juniper Networks M40E-FPC1-EP-B Module HECI: IPUCADNCAC
Juniper Networks WX-100C Application Accelerator
Unit Come WITH LICENSE *** Mint Condition
One-day shipping available
Enlarge
JUNIPER PB-1CHOC12-SMIR QPP 750-005634 $2K EA
NEW JUNIPER M10 ROUTER WITH LOADED CHASSIS M10BASE-DC-E
One-day shipping available
Juniper PB-1OC12-ATM-SMIR PB 1OC12 ATM SMIR
Expedited shipping available
Juniper PB-1GE-LX
Expedited shipping available
PE-4CHDS3-QPP Juniper M7i, M10i DS3 QPP
Expedited shipping available
Juniper IB-OC192-SON-SR2-E – Enhanced 1 Port OC192 M160
PE-4CHDS3-QPP Juniper M7i, M10i DS3 QPP
Juniper Networks PB-1GE-LX GIGABIT ENET PIC
Juniper T320-FPC3 T320 Flexible PIC Concentrator
