Products
Advanced Indoor Load Break Switch and Isolator Switch Solutions for Power Systems
The Usune FLN36 series high-voltage SF6 gas indoor load break switch and isolator switch is a core medium-voltage indoor switchgear suitable for modern power distribution systems. Utilizing China's mature and advanced high-voltage electrical manufacturing technology, the product integrates load switching and electrical isolation functions, perfectly adapting to the operational requirements of ring main units and compact distribution cabinets.
This equipment covers all mainstream voltage levels of 12kV, 24kV, and 36kV. It adopts a fully sealed tank design and a high-quality spring operating mechanism, primarily used for load current switching, loop power supply switching, and equipment overload protection in power distribution systems. All products are mass-produced in Usune's standardized factory, undergoing rigorous quality control processes, ensuring stable performance, strong adaptability, and long-term stable operation under various complex indoor power distribution conditions.
Core Product Advantages
1. Excellent Insulation and Arc Extinguishing Performance
The indoor load break switch and isolator switch utilizes high-purity SF6 gas as the insulation and arc extinguishing medium. Leveraging the excellent physical and chemical properties of SF6 gas, it achieves rapid and efficient arc extinguishing, ensuring stable insulation performance and effectively mitigating the risks of breakdown and discharge during equipment operation, guaranteeing safe switching of load current under rated conditions.
2. Strong Environmental Adaptability
The equipment adopts an integrated, fully sealed stainless steel tank structure, completely isolating the internal core components from the external environment. It is unaffected by external humidity, dust, temperature variations, etc., effectively preventing insulation aging and component corrosion, ensuring stable long-term operation.
3. Compact Structure and Convenient Installation
Through integrated optimized structural design, the equipment has a small overall size and occupies little space. The assembly method is flexible, and the installation process is simple, adaptable to the compact layout requirements of ring main units, prefabricated substations, and small distribution rooms, effectively saving engineering space and installation costs.
4. Stable Operation and Maintenance-Free Operation
Equipped with a high-precision spring operating mechanism, the equipment has simple operating logic, precise opening and closing actions, and strong operational stability. The unit boasts a long service life and requires no routine maintenance under normal operating conditions, significantly reducing the workload and operating costs of the power distribution system.
5. Wide Application Compatibility
The Indoor Load Break Switch and Isolator Switch support multiple power supply modes, including ring network power supply and terminal power distribution. It is perfectly compatible with various prefabricated substations and compact distribution cabinets, adapting to standardized power distribution construction in multiple scenarios and meeting the diverse power supply protection needs of urban and industrial power grids.
Main Application Scenarios
1. Urban Power Distribution Networks
Used for loop connections, load switching, and line protection in urban medium-voltage power grids, ensuring stable power supply to the urban power grid.
2. Civil Building Engineering
Suitable for residential communities, large commercial complexes, office buildings, etc., providing safe power distribution and overload protection for civil power supply systems.
3. Industrial Scenarios
Applied to industrial parks, factory power distribution rooms, and supporting prefabricated substations, meeting the continuous and stable power demand of industrial production.
4. Dedicated Power Distribution Equipment
Used in conjunction with ring network cabinets and compact distribution cabinets to achieve integrated control and protection of power distribution equipment.
FAQ
Q1: What voltage levels does the Usune Indoor Load Break Switch and Isolator Switch cover, and what types of power frequency systems are they compatible with?
A1: The FLN36 series covers three mainstream voltage levels: 12kV, 24kV, and 36kV. It is fully compatible with AC 50Hz and 60Hz medium-voltage power distribution systems, meeting the power supply and protection needs of most urban residential and industrial medium-voltage power distribution projects, offering excellent scenario adaptability.
Q2: Does the SF6 gas inside the equipment need to be replaced or replenished periodically? What is the equipment's lifespan?
A2: The product uses a fully sealed stainless steel tank with an extremely low gas leakage rate. Under normal operating conditions, the internal SF6 gas performance remains stable over a long period, requiring no periodic replacement or replenishment. The entire unit has a long service life, achieving maintenance-free operation throughout its entire lifespan in typical power distribution applications, effectively reducing later-stage maintenance costs.
Q3: What is the core difference between this SF6 load switch and traditional air-insulated load switches?
A3: Traditional air-insulated switches are susceptible to interference from humid and dusty environments, while Usune SF6 load switches rely on the high-quality insulating and arc-extinguishing medium of SF6, resulting in stronger breaking capacity and insulation stability. At the same time, the fully sealed structure isolates it from external environmental interference, and its compact design saves installation space. It offers significant advantages in safety, operational stability, service life, and maintenance costs, making it more suitable for modern high-standard power distribution projects.
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Sf6 Load Breaker Switch
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Rmu Load Break Switch
Zhejiang Usune Electric Co., Ltd., a professional manufacturer of high-voltage electrical equipment in China, has independently developed the FLN36-12D/FLRN36-12D indoor AC high-voltage SF6 RMU Load Break Switch and its fuse combination appliance. This product incorporates advanced foreign technology, adapts to the operational needs of China's power system, and is suitable for 10kV, 50/60Hz three-phase AC power systems. It is widely used in industrial and mining enterprises, high-rise buildings, and other scenarios for switching load current, fault current, and controlling and protecting power lines and distribution transformers.
24kv 36kv Load Break Switch
Zhejiang Usune Electric Co., Ltd. has launched the FLN36-24kV 36KV series of Indoor 24kV 36kV Load Break Switches. This series is a high-performance SF6 insulated switchgear suitable for three-phase AC 50Hz ring network power supply or dual-radial power supply systems. It can switch load current and overload current, and can also switch unloaded long lines, unloaded transformers, and capacitor banks. As a trusted supplier, Usune strictly adheres to quality control standards throughout the entire production process in its own factory, ensuring product reliability, durability, and compliance with international electrical standards. The combination of load switches and current-limiting fuses can replace circuit breakers, providing a cost-effective and highly safe solution for medium-voltage power distribution systems.
Indoor Sf6 Load Switch
The Usune Indoor Sf6 Load Switch (including models FLN36-12D and FLRN36-12D) is a high-performance indoor AC high-voltage electrical equipment independently developed by Usune, combining Chinese operational needs with advanced foreign technologies. It is suitable for three-phase AC 10kV, 12kV, 24kV, 36kV, 50/60Hz power systems and is widely used in various scenarios for switching load current, controlling and protecting circuits, and distribution transformers. The product features reliable sealing, comprehensive safety interlocks, and complies with international and domestic standards. With "Everything for the safe utilization of electricity" as its core philosophy, Usune, as a professional high-voltage electrical equipment supplier, provides stable and safe power distribution solutions to users worldwide.
Indoor Air Isolation Switch
The GN series Indoor Air Isolation Switch, independently developed by Zhejiang Usune Electric Co., Ltd. in China, is a new generation of high-current indoor high-voltage disconnecting switches integrating the latest domestic technologies. As a professional manufacturer of high-voltage electrical equipment, Usune designed this product to meet the high-standard power isolation requirements of large industrial scenarios such as power plants and steel mills. The switch can be configured as three independent single-pole units or a three-pole integrated structure, with complete voltage and current specifications, strictly complying with national and industry standards. It exhibits excellent environmental adaptability and serves as a safe and reliable disconnecting switch for equipment and system maintenance, providing stable and efficient protection for industrial power systems. Extensive practical application verification has made it a trusted choice for customers worldwide.
Indoor Type Isolation Switch
The Usune GN series Indoor Type Isolation Switch is a new generation of high-current isolation equipment independently developed by Zhejiang Usune Electric Co., Ltd., integrating cutting-edge domestic technologies. As a core manufacturer in China's high-voltage electrical industry, Usune strictly adheres to national standards, providing reliable solutions for large power plants, steel mills, and industrial power systems. The product adopts a flexible modular design (three independent single-pole units or a three-pole integrated structure), covering voltage levels of 12kV, 20kV, and 35kV, with a maximum rated current of 10000A. It serves as a critical power isolation device during equipment maintenance, ensuring personnel safety and system stability.
Usune is a professional Indoor Load Break Switch and Isolator Switch manufacturer and supplier in China. We have an experienced sales team, professional technicians, and an after-sales service team.
