Products
China Outdoor High Voltage Breaker Switch Manufacturer
As a professional high-voltage electrical equipment manufacturer in China, Zhejiang Usune Electric Co., Ltd. is a trustworthy supplier with a standardized production plant, specializing in the research and development and production of outdoor high-voltage circuit breakers. Our outdoor high voltage breaker switches cover voltage levels from 12kV to 170kV, including vacuum, SF₆, and oil-immersed types. They possess three core functions: normal operation control, fault protection, and system isolation. Adaptable to harsh outdoor environments, they are widely used in various power scenarios, providing stable and safe solutions for global power transmission and distribution networks.
Core Functions
1. Normal Operation Control
Connects and disconnects the rated load current of the high-voltage power system, achieving stable daily power transmission and distribution regulation.
2. Fault Protection
Quickly interrupts fault currents such as short circuits and overloads, protecting power lines, transformers, and various equipment from damage.
3. System Isolation
Provides safe electrical isolation during equipment maintenance and emergency shutdowns, ensuring the safety of maintenance personnel.
Outdoor Core Features
1. Weather-Resistant Design
Waterproof, dustproof, corrosion-resistant, and UV-resistant, suitable for long-term outdoor exposure.
2. High Mechanical Strength
Resistant to impacts from wind, snow, ice, and temperature changes.
3. High Insulation Class
Suitable for outdoor high-voltage working environments, ensuring safe and stable operation.
4. Long Service Life and High Reliability
Low failure rate, reducing subsequent maintenance costs.
Main Product Types
1. Outdoor Vacuum Circuit Breaker
Environmentally friendly and maintenance-free, suitable for medium-voltage outdoor power grids.
2. SF6 Outdoor High-Voltage Circuit Breaker
The most widely used type, with excellent arc-extinguishing performance, suitable for high-voltage, high-capacity power systems.
3. Oil-Immersed Outdoor High-Voltage Circuit Breaker
High cost-effectiveness and stable operation, suitable for conventional outdoor power facilities.
Application Scenarios
Transmission and distribution substations, outdoor power stations and step-up substations, urban and rural high-voltage power grids, industrial parks, mining areas, rail transit, new energy power stations, and various outdoor power facilities.
Practical Application Case
The Usune 126kV SF₆ outdoor high-voltage breaker switch was applied to a new energy booster station project in East China. Facing complex outdoor environments such as high humidity, salt spray corrosion, and typhoons along the coast, the equipment has operated stably for over 5 years, successfully interrupting multiple peak short-circuit faults in the power grid, ensuring the safe output of wind and solar energy, and supporting the stable operation of the local new energy power system.
FAQ
Q1: What voltage levels of outdoor high-voltage circuit breakers does Usune offer?
A1: We offer voltage levels from 12kV to 170kV, covering mainstream specifications such as 110kV, 126kV, 145kV, and 170kV, meeting the needs of medium-high voltage to ultra-high voltage outdoor power systems.
Q2: What are the advantages of the Usune Outdoor high voltage breaker switch in harsh outdoor environments?
A2: It adopts an integrated weather-resistant, corrosion-resistant, and UV-resistant design with high mechanical strength and high-quality insulation materials, enabling long-term stable operation under extreme weather conditions.
Q3: Can Usune provide customized outdoor high voltage circuit breakers?
A3: Yes. As a professional manufacturer and supplier in China, we own our own factory and can provide customized services in terms of voltage level, structural design, protection level and other aspects according to project requirements.
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11 kV Pole Mounted Vacuum Circuit Breaker
The Usune ZW32-12 series 11 kV Pole Mounted Vacuum Circuit Breaker is a high-performance three-phase AC power distribution device suitable for 50/60Hz, 10/11/12kV systems. It can safely switch on and off load currents, overload currents, and short-circuit currents, making it suitable for scenarios with frequent operations. When paired with a dedicated controller, it can form an intelligent recloser, realizing remote control, remote measurement, remote signaling, and remote adjustment functions. As a professional manufacturer from China, Usune provides stable and reliable products suitable for urban and rural power grids, industrial parks, and new energy grid-connected scenarios. This article details its core performance, practical applications, and common problems, showcasing Usune's strength as a trusted supplier and manufacturer of this type of critical power protection equipment.
Zw7-40.5 Outdoor Vacuum Circuit Breaker
The Usune Zw7-40.5 Outdoor Vacuum Circuit Breaker is a 50Hz three-phase AC outdoor high-voltage electrical device used for control and protection of 24-40.5kV power transmission and distribution systems. It features excellent breaking capacity, long electrical and mechanical life, maintenance-free design, and strong anti-pollution insulation performance. It conforms to GB (National Standard) and IEC (International Standard) and is widely used in power grids, wind farms, and industrial substations. As a core piece of equipment manufactured in the factory, it ensures stable system operation, supports capacitor bank switching and intelligent reclosing, and can be equipped with a high-precision built-in current transformer for metering and protection.
Gw4 Disconnect Switch
The Usune Gw4 Disconnect Switch is a 110kV double-column horizontal rotating, center-break type outdoor AC high-voltage disconnecting switch, suitable for three-phase AC 50/60Hz power systems. It is primarily used for opening and closing operations under voltage-on-load conditions and provides a clearly visible electrical isolation point for high-voltage equipment maintenance. As a professional high-voltage switchgear manufacturer from China, Zhejiang Usune Electric Co., Ltd., with its advanced production equipment and comprehensive quality control system, provides a solid guarantee for product reliability, making it the preferred equipment for substations and power transmission and distribution projects.
High Voltage Disconnector
The Usune GW8 and GW13 series high voltage disconnectors for transformer neutral grounding systems are outdoor electrical equipment designed specifically for 50Hz/60Hz AC systems, with rated voltages covering 40.5kV, 72kV, and 110kV. As a trusted supplier in the global power transmission and distribution industry, Usune provides safe, efficient, and durable neutral point grounding disconnector solutions for substations, power plants, and other core power facilities, leveraging advanced production equipment, rigorous testing processes, standardized materials, sophisticated craftsmanship, and a comprehensive quality management system.
110kv 1250a 2000a Disconnector Switch
The Usune 110kV 1250A 2000A Disconnector Switch belongs to the GW4-126 series of outdoor AC high-voltage electrical appliances, suitable for 110kV power transmission and transformation systems, mainly used for no-load switching and electrical isolation of equipment. As a professional manufacturer from China, Zhejiang Usune Electric ensures product reliability through advanced production equipment, rigorous testing, and a comprehensive quality management system. The product adopts a double-column horizontal rotating structure, equipped with silver-plated copper contacts and a mechanically interlocked grounding switch, conforming to GB 1985 and IEC 62271-102 standards. It can operate stably in environments ranging from -40℃ to +40℃ and has been safely put into operation in several key power transmission and transformation projects.
110kv 126kv Disconnect Switch Isolator
The Usune GW4 series 110kv 126kv Disconnect Switch Isolator is a double-column horizontal rotary disconnect switch suitable for 50Hz three-phase AC power systems. It is specifically designed for circuit switching under no-load conditions and is a critical safety component in power plants, substations, and heavy industry. As a professional Chinese manufacturer, Usune possesses advanced production equipment and strict quality control, and its products fully comply with GB1985, DL486, and IEC international standards. The electrical and mechanical performance of the products supplied by this supplier is reliable, and long-term field operation has proven their reliability. Their robust base, high-strength insulated supports, and precision conductive components ensure stable operation, convenient maintenance, and safe isolation.
Usune is a professional Outdoor High Voltage Breaker Switch manufacturer and supplier in China. We have an experienced sales team, professional technicians, and an after-sales service team.
