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220KV Power Station Type Lightning Arrester (Composite)

Ensure robust surge protection for 220kV power stations with the 220KV Power Station Type Ceramic Lightning Arrester, engineered for high-voltage grid stability and long-term reliability. Featuring a durable porcelain housing and zinc oxide (ZnO) varistor core, this arrester clamps lightning surges (20kA, 8/20μs) and switching overvoltages, reducing system tripping rates by 70%+. Designed for substations, hydropower plants, and heavy industrial grids, it operates flawlessly in extreme temperatures (-30°C to +80°C) and harsh environments (coastal salt spray, chemical pollution). Compliant with GB 11032-2000 (IEC 60099-4) and JB/T 8952-2005, it offers 30+ years of maintenance-free service

Price：

￥0.00
Category：

Lightning Arrester
Browse number：

83
Release time：

2024-10-22 01:03:05
Quantity： - +
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Detailed Description

Technical Advantages and Application Insights

Composite insulation, typically made of silicone rubber, offers several key benefits over traditional porcelain designs, which make it particularly suitable for modern power stations:

Excellent Pollution Performance: The silicone rubber housing is hydrophobic. This property prevents the formation of a continuous conductive water film on the surface, significantly increasing the pollution flashover voltage and making it ideal for industrial or coastal areas with high contamination.

Lightweight and Robust: Composite arresters can weigh only 1/3 to 1/4 of their porcelain counterparts. This reduces structural load and simplifies installation and transportation.

Improved Safety: The flexible and impact-resistant composite housing is less prone to damage and avoids the risk of catastrophic failure seen in brittle materials.

Research highlights the importance of proper installation for these arresters. The voltage distribution along the arrester's zinc-oxide elements is not uniform and can be influenced by nearby equipment like cable Terminals. Maintaining the correct installation distance is crucial to keep the voltage distribution unevenness factor below 1.15, ensuring long-term operational reliability.