The vacuum circuit breaker relates to an electrical device, including the main body of the circuit breaker and the cabinet body. The cabinet body is equipped with a vacuum pump and a gas storage tank. The compressed nitrogen gas is stored in the gas storage tank. The cabinet body is also equipped with a drum bag, which is equipped with several air outlets. The air outlet is connected with a connector through a pipeline, and the gas storage is connected with a connector. A switching valve is arranged on the tank and the connector, and a control rod is arranged between the insulating pull rod and the switching valve. The insulating pull rod controls the opening of the switching valve through the control rod. A sealed connection terminal connected with the main body of the vacuum circuit breaker is also arranged on the cabinet body. The vacuum circuit breaker is sealed and stored in the cabinet body under the vacuum state. It can insulate the dust and impurities from the outside and keep the temperature and humidity in the cabinet body at the same time. It greatly improves the service life of the vacuum circuit breaker and reduces the occurrence rate of faults. Moreover, when the insulating tie rod is closed, nitrogen can be injected into the vacuum interrupter to prevent the harm caused by sudden arc explosion.
【技术实现步骤摘要】
真空断路器
本专利技术涉及一种电气设备,尤其是一种真空断路器。
技术介绍
真空断路器是指能够关合、承载和开断正常回路条件下的电流并能关合、在规定的时间内承载和开断异常回路条件下的电流的开关装置。真空断路器可用来分配电能,不频繁地启动异步电动机,对电源线路及电动机等实行保护,当它们发生严重的过载或者短路及欠压等故障时能自动切断电路,其功能相当于熔断器式开关与过欠热继电器等的组合。低压真空断路器也称为自动空气开关,可用来接通和分断负载电路,也可用来控制不频繁起动的电动机。它功能相当于闸刀开关、过电流继电器、失压继电器、热继电器及漏电保护器等电器部分或全部的功能总和,是低压配电网中一种重要的保护电器。真空断路器在工作过程中会产生电弧,很有可能发生爆炸,一旦真空断路器爆炸就会影响到其他正常的设备,造成重大的财产损失,有时还会造成重大伤亡。在使用过程中,灰尘、温度、湿度等环境条件对真空断路器的故障引发和使用寿命有很大的影响,因此如果真空断路器具有密封、降温、调湿、抑爆等功能的壳体则大大加强了电气设备的使用性和寿命。
技术实现思路
本专利技术针对现有技术中的不足,提供了一种真空断 ...
【技术保护点】
1.真空断路器,包括断路器主体和柜体,所述的断路器主体包括绝缘拉杆和真空灭弧室,其特征为,所述的柜体上设置有真空泵和储气罐,所述的储气罐内存储有压缩氮气,所述的柜体内部上还设置有鼓包,所述的鼓包上设置有若干个出气孔,所述的出气孔通过管路连接有真空泵,真空泵上设置有开关阀,所述的绝缘拉杆与所述的开关阀之间设置有控制杆,所述的绝缘拉杆通过所述的控制杆控制所述开关阀的开启,所述的柜体上还设置有与所述真空断路器主体相连接的密封连接端子。
【技术特征摘要】
1.真空断路器,包括断路器主体和柜体,所述的断路器主体包括绝缘拉杆和真空灭弧室,其特征为,所述的柜体上设置有真空泵和储气罐,所述的储气罐内存储有压缩氮气,所述的柜体内部上还设置有鼓包,所述的鼓包上设置有若干个出气孔,所述的出气孔通过管路连接有真空泵,真空泵上设置有开关阀,所述的绝缘拉杆与所述的开关阀之间设置有控制杆,所述的绝缘拉杆通过所述的控制杆控制所述开关阀的开启,所述的柜体上还设置有与所述真空断路器主体相连接的密封连接端子。2.根据权利要求1所述的真空断路器,其特征为,所述的柜体底部设置有若干个减压孔,所述的减压...
【专利技术属性】
技术研发人员:向国庆,黄真,王远,
申请(专利权)人:浙江城电电气有限公司,
类型:发明
国别省市:浙江,33
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