High-voltage disconnect switch GW8

single-poleACvertical

Product overview
GW8 is a single-column, vertical-opening outdoor high-voltage AC disconnector designed for neutral points and reactive compensation circuits. It is available for rated voltages 40.5, 72.5 and 126 kV and is engineered for harsh outdoor environments.

Features

• Premium conductive material: Current-carrying arms use rectangular aluminum-alloy profiles providing high strength, low weight, increased heat-dissipation surface and enhanced corrosion resistance.
• Novel contact structure: Self-energized contact fingers made of chrome-bronze alloy clamp the contact blade, ensuring contact reliability under normal load and resistance to short-term thermal and electromagnetic forces during short-circuit events, with excellent mechanical wear resistance.
• Fixed connections: The conductive path uses permanent fixed connections (except for moving/stationary contact surfaces), minimizing maintenance requirements.

Technical specifications

• Rated voltage (kV): 40.5, 72.5, 126
• Rated frequency (Hz): 50/60
• Rated current (A): Up to 1600
• Rated short-time withstand current (kA): Up to 40
• Rated peak withstand current (kA): Up to 100
• Operating temperature (°C): -50 to +55
• Maximum ice accretion (mm): Up to 20
• Seismic resistance: Up to 1.0 g

Model family and application details

• Model family: GW8
• Application: Outdoor HV disconnector for neutral points or reactive compensation circuits
• Structure: Single-column, vertical-opening type
• Conductive material: Rectangular aluminum-alloy profiles for current-carrying arms
• Contact material/structure: Chrome-bronze alloy self-energized contact fingers for clamping and high wear resistance
• Connection type: Permanent (fixed) conductive connections to minimize maintenance
• Rated voltages available: 40.5 kV, 72.5 kV, 126 kV
• Rated frequency: 50/60 Hz
• Rated current capability: Up to 1600 A
• Short-time withstand capability: Up to 40 kA
• Peak withstand capability: Up to 100 kA
• Operating ambient temperature range: -50 °C to +55 °C
• Maximum ice accretion: Up to 20 mm
• Seismic resistance: Up to 1.0 g