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Shielded plug-in lightning arrester

屏蔽式插拔避雷器.png

ZWZR20 and ZWZR30 resistance capacitance overvoltage protectors are a new generation of patented products independently developed by our company to meet the needs of complex on-site environments. Specially used in medium voltage power grids of 110kV and below, it effectively limits the damage of operating overvoltage to inductive loads such as generators, motors, transformers, reactors, etc. It has been widely used in fields such as electricity, metallurgy, petrochemicals, mining, construction, environmental protection, and wind new energy power.


ZWZR20 and ZWZR30 resistance capacitance overvoltage protectors are electrical products specifically designed to protect the above operating overvoltage. They have obtained two national utility model patent certificates, with patent numbers ZL 200920032977.6 and ZL01220111095.0. Compared with other resistance capacitance products, the protection effect is more obvious and the operation of the products is more reliable. With the dual advantages of metal oxide lightning arresters and resistance capacitance absorbers, it can not only reliably protect against the hazards caused by lightning strikes, but also effectively reduce the steepness and amplitude of overvoltage surges during operation, providing more reliable protection for the normal operation of high-voltage motors, transformers and other electrical equipment, and is highly favored by users. Dedicated high-voltage capacitors with high voltage resistance, low dielectric loss, and reliable performance. The ZWZR20 series products use high-power non-inductive resistors with large thermal capacity, low temperature rise, and stable resistance values. The product structure is novel and unique, effectively utilizing and reducing usage space.