高压开关是电力行业生产中的重要设备之一,它广泛用于各发电厂、变电站的高压开关间隔中。由于高压开关工作于断路器小室,按有关规程的要求,除电气母线连接外,通风、控制都由隔板隔开,即采用封闭式结构。因此,开关的主要部分导电触头,因接触面不洁、触头氧化、机械变形松动等原因,造成触头严重发热烧毁的事故时有发生。以往由于没有可靠的手段在线监测触 High-voltage switchgear is one of the important equipment in the power industry. It is widely used in the high-voltage switchgear of various power plants and substations. As the high-voltage switch circuit breaker room, according to the requirements of the relevant regulations, in addition to the electrical bus connection, ventilation, control by the partition separated, that is, closed structure. Therefore, the main part of the switch conductive contacts, due to the contact surface is dirty, the contact oxidation, loose mechanical deformation and other reasons, resulting in severe heat burned accident occurred. In the past, there was no reliable means of online monitoring