保定电气厂家价格-交流无间隙金属氧化物避雷器

1、避雷器是连接在线缆和大地之间的一种防止雷击的设备，通常与被保护设备并联。当被保护设备在正常工作电压下运行时，避雷器不会产生作用，对地面来说视为断路。一旦出现高电压，且危及被保护设备绝缘时，避雷器立即动作，将高电压冲击电流导向大地，从而限制电压幅值，保护通信设备。当过电压消失后，避雷器迅速恢复原状，使系统能够正常供电。

1. Lightning arrester is a device that connects the cable and the ground to prevent lightning stroke. It is usually connected in parallel with the protected equipment. When the protective device is operated under normal operating voltage, the arrester will not work, and the ground will be considered as a circuit breaker. Once a high voltage is present and endangers the insulation of the protective device, the arrester immediately acts to direct the high voltage impact current to the ground, thereby limiting the voltage amplitude and protecting the communication device. When the over-voltage is disappeared, the arrester is restored to its original state quickly, so that the system can supply power normally.

2、避雷器不仅可用来防护大气高电压，也可用来防护操作高电压。如果出现雷雨天气，电闪雷鸣就会出现高电压，电力设备就有可能有危险，此时避雷器就会起作用，保护电力设备免受损害。避雷器的最大作用也是最重要的作用就是限制过高电压以保护电气设备。避雷器是使雷电流流入大地，使电气设备不产生高压的一种装备。

2. Lightning arrester is not only used to protect the atmospheric high voltage, but also can be used to protect the operation of high voltage. If there is a thunderstorm, high voltage power equipment will appear Lightning flashes and thunder rumbles., might be dangerous, the arrester will work, protection of power equipment from damage. The most important and most important function of a lightning arrester is to limit the high voltage to protect electrical equipment. A lightning arrester is a device that causes lightning current to flow into the earth and prevents electrical equipment from generating high voltage.