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      GW4-12(D)W型户外高压隔离开关是频率为50HZ-60 HZ的户外高压电器设备，供高压线路在有电压无负载情况下进行换接，以及对被检修的高压母线、断路器等电器设备与带电的高压线路进行电气隔离之用。也可用于分、合很小的电容电流和电感电流。

      GW4-12 (D) W outdoor high-voltage disconnector is outdoor high-voltage equipment with 50-60Hz frequency. It can be changed and connected for high-voltage line under voltage  and no load conditions; it also can be electrically disconnected between the HV electrical equipments such as the overhaul of high voltage busbar, CB, etc. and high voltage cables, also can be used to open or close small capacitor current and conductive current.

  

   1 、海拔高度不超过1000m；

      Altitude height is not more than 1000m.

   2 、环境温度：上限+40℃，下限－40℃；

      Environment temperature is from -40℃ to +40℃.

   3、风速不超过40.5m/s;

      Wind speed is not more than 40.5m/s.

   4 、地震烈度不超过8度；

      Earthquake intensity is not more than 8 grades.

   5 、绝缘子污秽等级：普通级为0级；防污型为III级；

      Insulator’s pollution level: Normal class is 0, anti-pollution is III level.

   6、安装场所应无易燃物质、爆炸危险、化学腐蚀及剧烈震动。

      Installation place where has no fire, explosion, chemical corrosion and sharp shakes.

 

    隔离开关的主要技术参数见下表    Main technical data of the disconnector as follows:

 

  CS8-6D手动机构  Manual mechanism

 

  1、隔离开关的结构The structure of disconnector

    本隔离开关是双柱水平回转式结构，安装图见图1。

It is the double-poles horizontal rotary type structure, the installation diagram as Figure 1.

                                      Figure 1  Outline Diagram of single pole of disconnector

    1 Base shell   2 Supporter  3 Insolating poster  4 Left outgoing cable base  8 Wiring block 5 Static conducting contactor   6 Dynastic conducting board   7 Right outgoing cable base

    GW4-12DW大电流隔离开关的每极，由三个独立的单极组成，每个单极是由底座、绝缘支柱及导电部分组成。

    Each pole is composed of three independent single poles and each single pole is composed of base, insulator supporter and conductive parts.

    每极有两个绝缘支柱分别固定在底座两端的衬套上(图2)、以连杆连结，每个绝缘支柱可以水平旋转，转角为90°，绝缘支柱上装有导电接线座(图3)、左、右触头(图4)。左、右触头通过导电板在两个绝缘支柱中间接触。
    Each pole has two insulation supporters that dividedly fixed on the bushing of base’s two sides (Figure 2), with links by rod. Each insulation supporter can horizontally rotate and the angle is 90°. The conductive wiring block (Figure 3) and left/right contactors (Figure 4) on the insulation supporter. The left and right contactors contact through buabar in two insulation supporters.

Figure 2  Base

1 Rotary board  2 Self-lubricating bearing (body is CuSn6.5Po.1 bronze material)

3 Rotary bearing    4 Fixed tight ring     5 M8 bolt

Figure 3, 4  Diagram of Outgoing Base and Middle Contactors

（Soft connection 2000A-4000A）

1 Right outgoing cable base   2 Dynastic conducting board  3  Static conducting contactor

4 Left outgoing cable base    5 Contactor spring    6 Contact clamp    7 Wiring block

 

    2、接地开关的结构 The structure of earthing switch

    接地开关静触头固定在隔离开关的导电管上，动触头安装在底座上的接地闸刀钢管的端部。

    The static contact of earthing switch is fixed on the conductive pipe of disconnector. The dynastic contact is installed on the end of earthing knife in the base.

    3 、隔离开关与接地开关的机械联锁

 The mechanical interlock between disconnector and earthing switch.

       隔离开关与接地开关的机械联锁部分是通过CS8-6D型手动机构上的联锁盘来实现的。

    The mechanical interlock is realized through the interlocking panel of CS8-6D manual mechanism.

 

       手动机构CS8-6D为单接地机构（见下图）。其操作手柄为水平旋转，转动角度为90°。

    The CS8-6D manual mechanism is with single earthing switch (the below figure). Its operating handle horizontally rotates with 90° angle.

 

  1、隔离开关动作原理    Action principle of disconnect

    GW4-12DW大电流隔离开关的操作机构通过连接管与隔离开关的主动级相连，机构主轴旋转90°，带动主动级的绝缘支柱旋转90°，底座内的连杆带动另一侧绝缘支柱按相反方向旋转，实现分、合闸动作，主动级通过极间联动管、带动另外两个从动极转动，从而保持三相同步动作。机构中的辅助开关与机构主输出轴相连，在分合闸位置时发出相应的分合信号。

    The operation mechanism of disconnector connects its main pole by linking pipe. The main axle of mechanism rotates 90° to make the insulation pillar of main pole rotated. The connecting rod inside of base takes another side of insulation pillar along anti-direction to rotate, which realizes opening and closing action. The main pole takes another two driven poles rotated by phases’ interlocking pipe and maintain three phases’ synchronous actions. The auxiliary switches in mechanism connect with main output axle and give the relative signals in the open and close positions.  

 

  2、接地开关动作原理    Action principle of earthing switch

    三相接地开关的主轴，用水平连接管通过接头连接起来，操作机构的手柄水平旋转90°，通过连杆带动水平连接管转动，实现接地开关分、合闸动作。

    The main axis of three phases earthing switch is connected with the horizontal linking pipe by joints. The handle of operation mechanism is horizontally revolving 90° and realizes the earthing switch opening and closing actions through connecting rod leads the rotation of horizontal connecting pipe.

 

  3、手动机构动作原理    Action principle of action mechanism

    操作机构通过连接管与隔离开关及接地开关的主轴相连，CS8-6D手动机构配带接地刀的隔离开关，其输出轴设有机械联锁板，保证按规定的程序（主分-地合-地分-主合）进行操作。

    The operating mechanism connects disconnector and earthing switch’s main axis through linking pipe. CS8-6D manual mechanism is equipped with disconnector including earthing knife. Its output axis hasn’t mechanical interlocking board. It can guarantee to operate according to regulated procedures (main opening – grounding closing – grounding opening – main closing).

 

 

                                              HGW4-12TQW/400A户外隔离开关

 

                                      GW4-12TQA不锈钢型户外隔离开关（配CS11抱箍型手动机构）

                                    GW4-12DW大电流隔离开关