220KV Power Station Type Lightning Arrester (Ceramic)

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

Price：

￥0.00
Category：

Lightning Arrester
Browse number：

65
Release time：

2024-10-22 01:05:11
Quantity： - +
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Detailed Description

Product Features and Applications

Ceramic arresters for power stations are designed for high reliability and specific performance characteristics:

Robust Design: They feature a rational design, good sealing performance, and reliable pressure release, ensuring safe, stable, and reliable operation. High-quality imported sealing rings are often used to enhance this performance.
Excellent Valve Plate Performance: The heart of the arrester is its Zinc oxide Resistor valve plate, which provides superior protective characteristics by responding rapidly to overvoltages.
Primary Application: These arresters are used to protect high-voltage equipment in substations from being damaged by lightning overvoltages and switching overvoltages.

Key Parameters Explained

For a deeper understanding, here's what some of the key terms mean in practice:

Rated Voltage (Ur): This is the maximum permissible power frequency voltage (RMS) that can be applied across the arrester Terminals after it has operated. For your 220kV system, this value is in the 192-216 kV range .
Continuous Operating Voltage (Uc): This is the maximum power frequency voltage (RMS) that can be continuously applied to the arrester without causing degradation. It is typically 75%-80% of the rated voltage .
Residual Voltage: This is the voltage that appears across the arrester Terminals when discharge current is flowing. It's a critical parameter because it must be lower than the withstand voltage of the equipment you are protecting. The value is often given as a multiple of the rated voltage at a specific current surge .