HY5WZ-51/134J arrester arrester is the basis for insulation coordination of various electrical equipment (transformers, reactors, generators, motors, PTs, CTs, circuit breakers, contactors, etc.) in the power system. The protection performance of the arrester is determined by the power system. Internal and external insulation indicators of electrical equipment (short-time power frequency withstand voltage, lightning impulse withstand voltage and operating impulse withstand voltage, etc.).

  The adoption of composite insulation jackets conforms to the development trend of miniaturization, safety and maintenance-free of international power products. Compared with traditional inorganic materials such as ceramics and glass, polymer organic composite materials have the advantages of small volume, light weight, pollution-resistant cleaning, explosion-proof and anti-vibration. It is a lightning protection component in the integrated and modular medium and high voltage power transmission and transformation equipment.

Use and implementation standards:

    This product is used in AC 220kV and below power generation, transmission, substation and power distribution systems. It is used to limit the amplitude of lightning and internal operation of the system to the specified level. It is the basic equipment for the insulation of the whole system. At the same time, this product cannot be used to limit the resonant overvoltage, and other methods are needed for system harmonic elimination.