110kv Sf6 Switch 2000a 3150a

Zhejiang Usune Electric Co., Ltd.'s LW36-126 series 110kV SF6 Switch 2000A 3150A is an independently developed outdoor high-voltage switchgear. It is compatible with a rated voltage of 110kV (maximum 126kV) and a 50Hz AC power grid. It is mainly used for interrupting rated current, fault current, and line switching, achieving reliable control and protection of the power system. It can also be used as a tie circuit breaker.

Core Technical Parameters

Core Advantages

1. Advanced Arc Extinguishing Technology: The 110kV SF6 Switch 2000A 3150A adopts an internationally leading self-powered arc extinguishing principle, offering excellent arc extinguishing performance, short arcing time, and low contact loss.
2. Long Service Life: Rated breaking cycles reach 20 times, with a maintenance cycle of up to 10 years under normal operating conditions, significantly reducing operation and maintenance costs.
3. Reliable and Low Noise: Optimized spring mechanism, low operating power, stable operation, and low noise, suitable for residential and urban environments.
4. Strong Environmental Adaptability: The 110kV SF6 Switch 2000A and 3150A exhibit stable performance in low-temperature, high-altitude, and heavily polluted environments, demonstrating outstanding resistance to pollution and corrosion.
5. Easy Installation and Maintenance: Compact structure and lightweight design facilitate convenient installation and commissioning, requiring minimal daily maintenance.
6. High Cost-Effectiveness: Excellent performance at a reasonable price, comparable to imported brands, effectively reducing project investment.

Real-world Application Cases

Case 1: Northwest 220kV Power Grid Hub Substation

In 2023, the Usune LW36-126 type 110kV SF6 switch (3150A) was applied to a 220kV hub substation in Gansu Province, supplying power to surrounding urban areas, industrial parks, and new energy power plants. In the 18 months since its operation: it has successfully interrupted 7 short-circuit faults with precise operation and zero failures; the SF6 pressure is stable, with no leakage detected in quarterly tests; the temperature rise during full-load operation meets standards, satisfying the requirements for high-current operation.

Case 2: Coastal Wind Farm Substation

In 2024, a 200MW offshore wind farm in Jiangsu Province selected Usune 110kV SF6 switchgear (2000A). Facing environments with high salt spray, high humidity, and frequent typhoons, the equipment operated stably and demonstrated excellent corrosion and pollution resistance. It reliably enables frequent grid connection/disconnection switching of wind turbines. Compared to imported equipment, project costs were reduced by 25%, and operation and maintenance costs by 40%.

Main Technical Parameters

Outer Dimensions

Project Reference

Cas-space Rocket Launch Project

Test Report

FAQ

Q1: What is the maintenance cycle for the Usune 110kV SF6 switchgear?

Under normal operating conditions, the maintenance cycle is 10 years. Core inspection items include SF6 pressure and purity, mechanical operating characteristics, insulation performance, and fasteners. Usune provides lifetime technical support and maintenance guidance.

Q2: Can this product be used in scenarios with altitudes >3000m or temperatures <-30℃?

The standard model is suitable for altitudes ≤3000m and temperatures ≥-30℃. For higher altitudes or lower temperatures, Usune offers customized solutions, ensuring stable operation by optimizing air pressure, using low-temperature resistant materials, and enhancing insulation.

Q3: How does Usune guarantee product quality and delivery time?

As a professional manufacturing plant, Usune implements strict quality control, covering raw material inspection, semi-finished product testing, and full-load testing before shipment. A comprehensive production management system ensures on-time delivery, and each product is equipped with a test report and quality certificate.

Applications

1. Urban and rural power grids: 110kV substation line and transformer protection.
2. New energy sector: Wind power, photovoltaic, and hydropower booster stations.
3. Industrial and mining enterprises: Large power-consuming units such as petroleum, chemical, and metallurgical industries.
4. Infrastructure: Power supply systems for railways, subways, airports, and data centers.

The Usune 110kV SF6 Switch 2000a 3150a integrates advanced technology, reliable quality, and high cost-effectiveness. Relying on strong technical strength and a comprehensive service system, it provides safe and stable power equipment to customers worldwide.