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15.6kv Eco-Friendly Vacuum Circuit Breaker (SF6-Free AIS VCB)1
Electrical Control SystemOutdoor RecloserVcb
Xiamen Insulation Electrical Technology Co., Ltd.
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Product Description General InformationIn medium-voltage power distribution systems, the most commonly used ring network cabinets currently include SF6 gas insulated ring network cabinets, solid insulated ring network cabinets and environmentally friendly gas insulated ring network cabinets. However, due to the greenhouse gas emission problem of SF6 and the difficulty of recycling solid insulation materials, the application of SF6 gas insulated ring main unit and solid insulated ring main unit will be limited. With the global promotion of the concept of green and environmentally friendly development, fully insulated environmentally friendly gas ring main units that comply with the latest environmental protection concepts and requirements will usher in historical development opportunities!IE-EcoAir-15.6/24kV 630A series environmentally friendly switches are a new generation of "fluorine-free and low solid waste" green and environmentally friendly circuit breaker switches and environmentally friendly gas insulated ring main units developed to replace traditional SF6 gas insulation.The environmentally friendly circuit breaker switch adopts an integrated high-strength longitudinal beam (pole), and the vacuum arc extinguishing chamber is wrapped in the longitudinal beam (pole) structure. It has the advantages of simple structure, easy assembly, and simple debugging. It isolates the knife switch, The closing and grounding operations are driven by the integrated isolation spindle without other arm transmission. The working position is more precise and the isolation mechanism's operating force is lighter. The main shaft of the circuit breaker adopts epoxy fiberglass pull-out rod, which has high mechanical strength and strong insulation performance. Through the zinc alloy bracket and transmission cam, the opening and closing actions of the vacuum arc extinguishing chamber are realized. There are silicone sheds between phases to increase the creepage distance. . The environmentally friendly circuit breaker switch is not only suitable for ring main units with sealed air chamber structure, but also for normal pressure metal enclosed ring main units.Using a solution of environmentally friendly gas insulation and vacuum breaking, the combination of advantages has high overall performance. The live part of the primary circuit is sealed with an air box, and the high-voltage components are not affected by altitude. They are completely maintenance-free and have strong environmental adaptability. The cabinet size is small and the space requirement inside the air box is low. Products can be used in power grids, large industries, rail transit, commercial buildings and other usage scenarios.This product is mainly used in indoor and outdoor ring network switching equipment in 10-24kV medium voltage distribution network systems to receive and distribute electric energy. Suitable for top expansion, side expansion, and common box ring network cabinet solutions. The parts common rate of the upper and lower isolation solutions reaches more than 90%. The product has high stability and strong versatility, and fully meets the type test requirements.Product Features1. Green and Environmentally Friendly.a. Use dry compressed air or nitrogen as the insulating gas. It has high ionization field strength and breakdown field strength. It can quickly restore the insulation performance after breakdown. It has good chemical stability, is non-flammable, non-explosive, non-aging, and non-corrosive. It is not easily decomposed by discharge, has a large specific heat capacity, and has good thermal conductivity and fluidity.b. This environmentally friendly insulating gas is not only non-toxic and harmless, but can be directly discharged into the atmosphere without causing air pollution. It also has good electrical properties and stability. During the synthesis process, equipment operation, arc, water vapor, Under the combined action of other external factors and the final decomposition and transformation process, no toxic or harmful substances to people and the environment will be produced.c. The switch is made of thermoplastic material and can be recycled. There is no SF6 greenhouse gas emissions and no impact on the environment such as solid waste recycling.2. Compact Space.Compact switch cabinet, the width of the typical 15.6kV solution can be about 400mm, the cabinet size is small, and the layout space requirement is low. Reliable wall installation, only 1m operating channel in front of the cabinet.3. Maintenance-Free.a. Using a long-life, maintenance-free vacuum arc extinguishing chamber, the main conductive part is not affected by the external environment. Since dry air and other environmentally friendly gases are used, there is no need to configure an SF6 gas leakage alarm device on site. The main circuit is fixedly connected and does not require rack-in and rack-out maintenance during the life cycle.b. The main circuit is fixedly connected and does not require rack-in and rack-out maintenance during the life cycle.c. Especially suitable for applications in plateau, coastal, alpine, high pollution and other areas.4. Intelligent.Integration with secondary equipment can realize online monitoring, remote control and protection of equipment to meet the needs of intelligent distribution network.5. Modularity.There are side expansion and top expansion methods, and the expansion is flexible and convenient. It is fully in line with China's power grid standardization and various customized solutions.6. Security.Non-SF6 technology prevents SF6 gas leakage from weakening insulation and arc-extinguishing capabilities, resulting in breaking failure and the risk of box explosion; it has a complete "five-proof" interlocking structure, making operation safe and easy.Operating ConditionsNormal environmental conditions:Ambient temperature: maximum temperature +40oC; 24-hour average maximum temperature +35oC; minimum temperature -40oC.Humidity: The maximum average relative humidity measured in 24 hours is 95%; the maximum average relative humidity measured in 1 month is 90%.The maximum altitude of installation is 1500 meters without reducing the gas pressure. When the installation altitude exceeds 1500 meters, please contact pre-sales technology.Operation must comply with the requirements of IEC62271-1 and GB3906 standards. For special operating conditions, the end user and the manufacturer must agree. If special harsh operating environments are involved, the manufacturer must be consulted. For example, when electrical equipment is installed at an altitude above 1,500 meters, the atmospheric pressure will decrease, causing the air box to bulge.Circuit Breaker Switch DiagramDimensional Drawing of ECO Friendly Circuit Breaker (With Lower Isolation)Schematic Diagram of Circuit Breaker Switch Cabinet and PT Cabinet Air TankDimensional Drawing of Air Tank and Switch CabinetInternal Structure1, Side expansion casing.2, Circuit breaker (load switch).3, Three-station isolation switch.4, Busbar.5, Entry bushing.6, Air tank.7, Barometer.8, Circuit breaker (load switch) mechanism.9, Observation light.10, Three-station isolation mechanism.11, Ground observation window.Product MaintenanceAll components inside the 15.6kV/630A are maintenance-free for the declared product life.The isolation and grounding positions can be observed to provide safety guarantee for operation and cable construction.The live parts are completely isolated from the outside world, and a special arc pressure relief channel is designed on the gas box to ensure the safety of operators and equipment.The mechanical part is located outside the air box and behind the front panel, making it easier to operate and replace. The surface of the mechanical part has undergone anti-corrosion treatment, and its movable parts have been lubricated before leaving the factory, which can meet the use of the product life cycle. In extreme environments (dust, sand and dirt) inspection, maintenance and, in some cases, replacement may be necessary.Special CustomizationThe above parameters are typical data; if the existing styles do not meet your specific demands, please contact us for a custom design.We have significant personalized customization development and production skills, allowing us to provide tailored solutions to customers all over the world.
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