概述

可卸式避雷器是将配电型金属氧化物避雷器改装后巧妙地安装在跌落式熔断器的跌落式机构上，达到在不断电的情况下，可以借助绝缘拉闸操纵杆方便的对避雷器进行检测、维修与更换，不但保证了线路的畅通，而且大大地减少了电力维护人员的工作强度和时间，特别适合于不宜停电的场所如邮电通讯、机场、车站、医院、繁华商业区等。产品其它性能同配电型避雷器。

第二代跌落式避雷器增加了脱离器，在避雷器出现异常发生故障时，利用工频短路电流让脱离器动作，使脱离器接地端自动脱开，避雷器元件翻落，退出运行防止事故进一步扩大，并易于维护人员及时发现进行维护和审换，其翻落原理类似熔断器熔丝熔断引起熔管翻落我公司采用了目前国际最先进的YBB型跌落机构、接触可靠、分合灵活，并采用复合支柱和不锈钢盖的先进配件，具有防污防腐等优点。脱离器有热熔式和热爆式两种，热熔式脱离器简单经济，热爆式脱离器具有动作速度快，动作电流范围广，又能耐受规定电流冲击和动作负载的优点。

Overview

The detachable arrester is to convert power distribution type metal oxide arrester to skillfully install on the drop-out mechanism of drop-out fuse to carry out the detection, maintenance and replacement of arrester with the help of the insulated pulling lever to ensure the unblocked lines and to greatly reduce the work intensity and time of the power maintenance personnel, which is suitable for places where power outages are not appropriate, such as post and telecommunications, airports, stations, hospitals, busy commercial areas in the case of no power supply. The other performance of the product is the same as the distribution type arrester.

The second-generation drop-out arrester increases by disconnector, and in case of anomaly failure, the arrester  is self-disengaged from   the  ground terminal of disconnector  by  using frequency short-circuit current to disengage the action of the disconnector, and the components of arrester turn down, which drop out the operation to  prevent further expansion of the accident and easy for  maintenance  personnel to maintain and replace in time, and the principle of falling over is similar to that of the fuse tube drop-out caused by a blown fuse.

Our company adopts the  most advanced  international YBB-type drop-out  mechanism,  reliable contact, flexible split and close, and advanced accessories of composite pillar and stainless steel cover, which has the  advantages  of  antifouling  and  anticorrosion. The  disconnector  has two  kind  of  hot  melt type  and thermal  explosion  type,  the  hot  melt  type  disconnector  is  simple  and  economical,  and  the  thermal explosion type disconnector has the advantages of fast action speed, with a wide range of action current, and can withstand the provisions of the current impact and the action of the advantages of the load.

1.复合支柱绝缘子Composite station post Insulator

2.安装支架直接接地Install bracket directly grounding

3.下支座Lower bracket 
4.下触头Lower contact 

5.接地螺栓Earth stud

6.上支座Upper bracket  

7.上触头Upper contact  

8.操作环Operation ring 

9.避雷器Arrester

10.绝缘支架Insulating support

11.脱离器（选用）Disconnector (optional) 

12.软连接地线Flexible grounding