GW4-126kv 110kv Outdoor High Voltage Disconnect Switch / Isolator Switch
The GW4-126 outdoor high voltage disconnect switch is a three-phase AC outdoor isolator designed for 126kV power transmission and distribution systems. It is widely used in substations, utility grids, and industrial power systems for no-load switching and electrical isolation during equipment maintenance. Featuring a double-column horizontal rotating structure, the GW4-126 provides reliable mechanical performance, strong insulation capability, and excellent outdoor environmental adaptability.
Double-Column Horizontal Rotary Structure:The GW4-126 adopts a double-column horizontal opening structure with balanced mechanical transmission, ensuring stable and reliable operation.
Excellent Outdoor Insulation Performance:Equipped with high-strength porcelain or composite insulators, the disconnector offers strong insulation capability and pollution resistance for outdoor environments.
Reliable Mechanical Interlocking System:The grounding switch and isolator are equipped with a mechanical interlock device to ensure safe operation and prevent misoperation.
Corrosion-Resistant Design:Hot-dip galvanized steel components and stainless-steel accessories provide excellent corrosion resistance and long service life in harsh outdoor conditions.
Flexible Operating Mechanism:Supports both manual and motorized operating mechanisms for convenient remote or local operation.
Suitable for Harsh Environmental Conditions:Designed for high-altitude, high-pollution, strong wind, and severe weather applications in outdoor substations and transmission networks.
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Model Number |
Rated Voltage (kV) |
Rated Current (A) |
Thermal Stability Current (kA/4s) |
Dynamic Stability Current (kA) |
Power Frequency Withstand Voltage (kV/60s) |
|
Lightning Impulse Withstand Voltage (kV) |
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|
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Phase-to-Phase/Phase-to-Ground |
Break |
Phase-to-Phase/Phase-to-Ground |
Break |
| GW4 | 126 | 630 | 20/31.5 | 50/80 |
230 |
265 | 550 | 630 |
| GW4 | 126 | 1250 | 31.5/40 | 80/100 | 230 | 265 | 550 | 630 |
| GW4 | 126 | 1600 | 31.5/40 | 80/100 | 230 | 265 | 550 | 630 |
| GW4 | 126 | 2000 | 40 | 100 | 230 | 265 | 550 | 630 |
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Chennuo Electric Technology Group Co., Ltd
Tel：+86 19303791130
Email：sales@chennuojt.com
Add：No. 9 Duyu Street, Luolong District, Luoyang City, Henan Province, China
