DYN-III-10KV-R低残压母线保护柜为系统提供更完善的母线过电压保护及PT保护。装置中低残压过电压保护器用于承担母线过电压保护，对连接在母线上的设备提供更好的过电压保护。保护残压比常规避雷器降低30%以上，如10kV系统可由45kV降低到30kV以下，作为母线的一级保护，残压降低30%，将大大提高避雷器等二级防护的效果，对电缆提供更完善的保护，大大提高电缆的使用寿命。低残压技术对母线过电压的抑制效果提高30%以上，将大幅降低柜内绝缘闪络事故发生，延长固体绝缘设备的使用寿命，提高系统运行的稳定性。

The DTBP-VI-12.7 three-phase six column overvoltage protector is a new type of overvoltage product with unique structural connections and new material applications, designed based on the characteristics of overvoltage in the current power system and drawing on the operating experience of various overvoltage protectors over the past decade. It has superior performance and reasonable parameters.

This product has complete protection functions and is mainly used to limit the operating overvoltage caused by vacuum switch operation. It has a reliable limiting effect on phase to phase and phase to ground overvoltage, and can also limit atmospheric overvoltage. Due to its large flow rate, it is more suitable for situations with high requirements for overvoltage limiting effect, thus avoiding thermal collapse accidents caused by overvoltage energy exceeding the capacity of the protector.

This product has been widely used in the fields of electricity, metallurgy, chemical industry, coal, municipal engineering, etc. It is the most ideal equipment for protecting the insulation of electrical equipment such as motors, generators, transformers, switches, bus lines, capacitors, cables, etc.