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GW1-10/630-2000A Outdoor High-Voltage AC Isolating Switch (Disconnect Switch)

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The GW1-10 Series is a robust, outdoor high-voltage disconnect switch designed for three-phase AC 50Hz power systems with a rated voltage of 10kV. It serves as a critical safety component by creating a visible physical break in the circuit, ensuring the safety of personnel during the maintenance of high-voltage buses, circuit breakers, and other live equipment.

Engineered for durability in harsh environments, this series supports rated currents from 630A up to 2000A. It features high-grade electrical porcelain insulators and reinforced conductive contact systems to minimize contact resistance and prevent oxidation. When paired with the CS6-1 manual operating mechanism, it provides reliable, low-effort switching performance. We have ceramic and silicone rubber insulators designs, you can select it according to your requirements.

GW1-10 Series 10kV Outdoor High-Voltage Isolating Switch with Porcelain Insulators

Technical Specifications Table

ParameterSpecification
Rated Voltage10kV
Rated Current630A / 1000A / 1250A / 2000A
Rated Frequency50Hz
Peak Withstand Current40kA / 50kA / 63kA / 80kA
Short-time Withstand Current (4s)16kA / 20kA / 25kA / 31.5kA
Insulation LevelTo ground: 42kV; Across open contacts: 48kV

GW1-10 Series 10kV Outdoor High-Voltage Isolating Switch with Porcelain Insulators

Structural Overview

The GW1 series isolating switch features a structural design with two insulating porcelain columns: one porcelain column is mounted on a bearing at one end of the base (capable of horizontal rotation), and the other is fixed at the opposite end of the base.
The conductive blade of the GW1 series is split into two halves, which are fixed on the top of the two porcelain columns respectively, realizing horizontal opening and closing. The contact point of the contacts is located between the two porcelain columns. When the operating mechanism is actuated:
  • One porcelain column (with conductor) rotates, and the other porcelain column (with conductor) is synchronously driven to rotate via a connecting rod.
  • Note: For the standard GW1 series, only the rotatable porcelain column (mounted on the base bearing) and its conductor rotate when the operating mechanism is activated, with the fixed end remaining stationary.
Through the above transmission, the split conductive blade opens or closes towards the same side synchronously.

Matching Operating Mechanisms

  • GW1-10 series: Configured with CS11-I manual operating mechanism
  • GW1-15 series: Configured with CS11-I manual operating mechanism
  • GW1-35 series: Configured with CS11 or CS manual operating mechanism
  • GW1-35D series: Configured with CS8-6D or CS15-D manual operating mechanism

GW1-10 Series 10kV Outdoor High-Voltage Isolating Switch with Porcelain Insulators

Application

  • Substation Maintenance: Providing safety isolation for transformers and busbars.

  • Distribution Networks: Sectionalizing outdoor 10kV rural and urban power grids.

  • Industrial Plants: High-voltage incoming line protection for large-scale manufacturing facilities.

  • Renewable Energy: Disconnect points for solar and wind farm step-up stations.

 

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