VT18-40.5户内高压交流真空断路器

产品名称

VT18-40.5户内高压交流真空断路器

产品图片

适用范围Application Range

VT18系列户内高压交流真空断路器适用于三相交流50Hz、24kV/40.5kV系统中，可供工矿、发电厂及变电站作为分合负荷电流、过载电流、故障电流之用，并适用于频繁操作的场合。

VT18 series indoor AC high voltage vacuum circuit breaker is suitable for three-phase AC 50 Hz, 24 kV / 40.5 kV system. It can be used for industrial and mining, power plants and substations as load current, overload current and fault current. It is also suitable for frequent operation.

产品特点Product Features

VT18系列户内高压交流真空断路器采用前后布置结构,固定在充气隔室的内外壁上。断路器采用敞开式结构，置于SF6气体室内，这样有利于主回路散热，并且能满足绝缘配合的要求，主回路电气连接全部采用固定式连接，具有很高的可靠性。

操动机构采用专门为这种新型断路器设计的弹簧操动机构，安装在断路器框架内。其结构特点更适合断路器的前后布置形式，并成为断路器整体结构中不可分割的一部分。机构设计简单，输出曲线与灭弧室的要求配合良好。

VT18 series indoor AC high voltage vacuum circuit breaker adopts the front and back arrangement structure, which is fixed on the inner and outer walls of the inflatable compartment. The circuit breaker adopts an open structure and is placed in the SF6 gas room, which is conducive to the heat dissipation of the main circuit and can meet the requirements of insulation coordination. The electrical connection of the main circuit adopts fixed connection and has high reliability.

The operating mechanism adopts the spring operating mechanism specially designed for this new type of circuit breaker, which is installed in the circuit breaker frame. Its structural characteristics are more suitable for the front and back layout of the circuit breaker, and become an integral part of the overall structure of the circuit breaker. The design of the mechanism is simple, and the output curve is well matched with the requirements of the arc extinguishing chamber.