GW4-252 Outdoor High Voltage Disconnect Switch
GW4-252 Series Outdoor High Voltage Disconnect Switch is a premium three-phase AC 50Hz outdoor electrical equipment designed for 252kV power transmission systems. It is widely utilized in power plants, substations, and large industrial enterprises for electrical isolation and circuit switching under no-load conditions. Manufactured strictly in accordance with GB1985 standards, it guarantees exceptional mechanical reliability, long service life, and flexible operation under extreme environmental conditions.
Superior Electrical Isolation: Engineered for safe and reliable electrical isolation of high-voltage busbars, circuit breakers, and other electrical equipment during maintenance.
Robust & Optimized Structure: Features an advanced, rational structural design that ensures stable performance, high mechanical strength, and effortless manual or motorized operation.
Compliant with International Standards: Fully meets and complies with the stringent requirements of GB1985 (High-voltage alternating-current disconnectors and earthing switches), ensuring global-grade safety.
Extreme Environmental Adaptability: * Temperature Resilience: Operates flawlessly in extreme climates ranging from -50°C to +50°C.
|
name |
unit |
parameter |
|
Rated Voltage |
kV | 252 |
|
Rated Current |
A | 630,1250,1600,2000,2500,3150,4000 |
|
Rated Short-Time Withstand Current (Thermal Stability Current) |
kA(3s) | 25/31.5/40 |
|
Rated Peak Withstand Current (Dynamic Stability Current) |
kA | 63/80/100 |
|
Power Frequency Withstand Voltage (1 min) |
460 |
Phase-to-Phase/Phase-to-Ground |
|
|
520(+) |
Break Point |
|
Lightning Impulse Withstand Voltage |
1050 |
Phase-to-Phase/Phase-to-Ground |
|
|
1200(+) |
Break Point |
|
Mechanical Life |
Frequency |
10000 |
|
Electrical Life |
Frequency |
2000 |
|
Bus Switching Current |
|
support |
|
Capacitive Small Current Switching Current |
|
support |
|
Pollution Protection Rating |
|
III/IV level |
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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
