GW4 Interruptor de desconexión de alta tensión para exterior de 33 kV y 40,5 kV

The GW4 series covers voltage levels from 33kV, 35kV, to 40.5kV, making it widely used in 110kV and 66kV substations (step-down side applications) and medium-voltage distribution networks.

It is mainly used to:

• isolate high-voltage equipment during maintenance
• provide a visible air-gap disconnection point
• safely disconnect busbars, transformers, and circuit breakers
• operate only under no-load conditions

The switch is typically installed in:

• outdoor substations
• power plants
• industrial switchyards
• renewable energy (wind/solar) substations

Main Features

• Rated voltage: 33kV / 40.5kV
• Outdoor installation, heavy-duty design
• Double-column or center-break structure
• Visible isolation gap for safety confirmation
• Manual or motorized operation available
• Optional single or double grounding switch (D type)
• Anti-pollution porcelain or composite insulators
• Strong mechanical linkage system
• Suitable for harsh outdoor environments

Technical Specifications (Typical for 40.5kV class)

Modelo Significado

Typical model examples:

• GW4-33
• GW4-40.5
• GW4-40.5D (with grounding switch)
• GW4-40.5W (anti-pollution type)

Meaning:

• GW = Outdoor disconnect switch
• 4 = Design series
• 33 / 40.5 = Rated voltage (kV)
• D = With grounding knife switch
• W = Anti-pollution version
• 630 / 1250 = Rated current

Condiciones de trabajo

• Temperatura ambiente: -30°C to +40°C
• Altitude: ≤3000m
• Wind speed: ≤35m/s
• Pollution level: Class III
• Intensidad del terremoto: ≤8 grados
• No flammable, explosive, or corrosive environment

Aplicaciones

• Outdoor substations (33kV / 40.5kV systems)
• Power transmission & distribution networks
• Transformer isolation switching
• Circuit breaker maintenance isolation
• Solar and wind power substations
• Industrial power systems

Product Advantages

High Safety Isolation

Provides a clear visible break, ensuring safe maintenance operations.

Strong Outdoor Durability

Designed for long-term exposure to UV, rain, wind, and pollution.

Flexible Configuration

Supports grounding switches, motor operation, and anti-pollution upgrades.

Reliable Mechanical Structure

Robust linkage ensures synchronized phase operation and long service life.

Esquema del dibujo