GW4 HV Isolator: Core Advantages & Future-Proof

2025-04-08 13:17:22

The GW4 series double column horizontal break High-voltage isolation switch is a benchmark product for safe isolation and flexible operation in power systems. It is designed specifically for 10kV-750kV transmission and distribution systems and can be equipped with grounding switches on one or both sides, suitable for substations, new energy power stations, and industrial distribution scenarios. This article analyzes its technical advantages and selection value, helping you quickly identify cost-effective solutions.

1、 Core advantages of the product

1. Modular dual column design, high reliability

-Structural innovation: Double column horizontal fracture center opening structure, fracture distance>200mm (10kV level), excellent insulation performance (power frequency withstand voltage 42kV/1min).

-Flexible configuration: Supports single-sided/double-sided grounding switches to meet the needs of multiple scenarios such as dual busbar systems and GIS composite appliances.

-Environmental resistance: The pillar insulator is made of anti fouling flashover composite material (creepage distance ≥ 31mm/kV), which is suitable for harsh outdoor weather conditions (-40 ℃~+40 ℃).

2. Precise adaptation of transmission system

-90 ° transmission isolation switch: standard CS17 manual three linkage operating mechanism, mechanical life up to 2000 times, torque ≤ 150N · m, easy manual operation.

-180 ° transmission isolation switch: optional CJ6 electric mechanism (response time<3s) or CS17G manual mechanism, supporting remote control and automation system integration.

-Grounding switch linkage: CS17G manual mechanism realizes three station synchronous operation, with grounding resistance<0.1 Ω, ensuring maintenance safety.

3. Forward looking technology extension

-Intelligent expansion: Reserved sensor interfaces (temperature and displacement monitoring), can be upgraded to intelligent isolation switches, and data can be connected to SCADA systems.

-Low carbon compatibility: The framework is made of recyclable aluminum alloy, and the insulation material complies with RoHS standards, making it suitable for future environmental protection power grid needs.

2、 Why choose us?

1. Full scene customization capability

-Wide parameter coverage: rated current 630A-3150A, peak dynamic stable current up to 100kA (4s), suitable for high fluctuation scenarios of new energy such as photovoltaics and wind power.

-Special requirement response: Support customized design for anti salt spray (coastal areas), high altitude (>3000m), and extremely cold areas.

2. Quality and Certification Assurance

-Certified according to international standards, the full lifecycle failure rate is less than 0.05%.

-Before leaving the factory, it undergoes a 72 hour mechanical break in test and power frequency withstand voltage test to ensure immediate use upon delivery.

3. Full cycle service support

-Fast delivery: Standardized module production reduces delivery time by 30% (within 15 days for regular orders).

-Maintenance: Provide installation guidance and predictive maintenance plans.

4. Future technology collaboration

-Synchronized development with smart grid technology, supporting digital twin modeling and cloud diagnosis, reducing operation and maintenance costs by more than 30%.

3、 Typical application scenarios

-Substation upgrade: Replacement of old GW4 isolation switches to improve busbar switching efficiency and safety.

-New energy farm: photovoltaic DC side isolation (1500V DC), wind power collection line segmentation.

-Industrial power distribution: core isolation unit of high voltage incoming cabinet (KYN28 type) for steel/chemical enterprises.

-Rail transit: Traction power supply system contact network power-off maintenance, supporting 25kV single pole configuration.

conclusion

The GW4 series double column isolation switch has become the preferred equipment for traditional power grid upgrades and new energy construction due to its modular design, high reliability, and intelligent expansion potential. Choosing us is not only about choosing a product, but also about obtaining full lifecycle technology protection and low-carbon future adaptation capabilities.