What environments is the 35kV high-voltage disconnector suitable for?

35kV Outdoor Wind-Resistant High-Voltage Disconnector
— Suitable for wind farms, overhead line pole-mounted applications, and substation installations.
Model series: GW5-40.5 outdoor high-voltage disconnector (hereinafter referred to as “disconnector”).

This disconnector is designed for use in 50Hz, 35kV power systems to open or close circuits under no-load voltage conditions. The pollution-resistant variant meets the requirements of users in heavily polluted areas and effectively mitigates pollution-induced flashover issues during operation.

The 35kV outdoor pole-mounted wind-resistant high-voltage disconnector GW5-40.5 is a double-column, horizontally opening type. It is manufactured as a single-pole unit. When used for three-phase applications, the three poles are interconnected via operating rods. Each single pole consists of a base, two support insulators, terminal fittings, and contact assemblies. The two porcelain support insulators are mounted parallel to each other and perpendicular to the base, supported by ground bearings at both ends of the base.

Operating Environment

The disconnector is intended for three-phase AC 50Hz circuits to open or close energized but unloaded lines. Its standard operating conditions are as follows:

• Altitude:

• Standard type: ≤ 1,000 m above sea level

• High-altitude type: ≤ 3,000 m

• Ambient temperature: –40 °C to +40 °C

• Wind speed: ≤ 35 m/s

• Seismic intensity: ≤ Grade 8 (on the Chinese seismic scale)

• Pollution severity:

• Standard type: suitable for Class II polluted environments

• Pollution-resistant type: suitable for Class III polluted environments
  (Classification per GB/T 5582, the Chinese national standard)