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FLN36-22
FLN36-22 SF6 Load Break Switch
FLN36-22KV SF6 load switch is an indoor/outdoor universal AC high-voltage switchgear developed specifically for high-voltage distribution network upgrades, cross-border high-end energy projects, and ultra high power long-distance distribution. It uses high-purity SF6 gas as the insulation and arc extinguishing medium, and strictly follows GB3804-2004, GB16926-2009, IEC 62271-105, and IEC 61850 standards for research and development and manufacturing. It has a rated voltage of 22KV, a rated frequency of 50/60Hz dual frequency adaptation, a rated current of 1250A/1600A/2000A optional, and a mechanical life of ≥ 2000 cycles.
The product adopts a high-strength epoxy resin segmented casting sealing structure, matched with a high-end military grade anti-corrosion alloy shell, equipped with an H-shaped five spring energy storage operating mechanism, which can achieve precise linkage of “closing opening grounding locking energy storage self inspection” six positions, supporting intelligent remote control, data collection, linkage regulation, automatic operation and maintenance, digital traceability and fault self inspection. The incoming and outgoing lines support multiple ways of adaptation for cables, busbars, overhead lines, and are suitable for installation forms such as ring main units, prefabricated substations, outdoor switch stations, and multinational energy project distribution stations.
The core is used for 22KV High voltage distribution network, cross-border high-end energy projects, ultra high power long-distance distribution, and high-end heavy-duty industrial core distribution can rely on breaking normal load current, cable charging current, no-load transformer current, and short-circuit transfer current. It is a high-end core equipment that balances high voltage adaptation, cross-border compatibility, ultra high power, and intelligence
Features
1. High voltage dual frequency adaptation, cross-border energy compatibility:
Specially optimized for the 22KV high voltage level, the insulation gap and arc extinguishing parameters are accurately matched with the 22KV voltage standard, and support 50/60Hz dual frequency adaptation, which can perfectly meet the domestic high voltage distribution network upgrade scenarios and the distribution needs of cross-border high-end energy projects (such as some countries in Europe and America). It can be directly put into use without additional modification, solving the pain point of incompatibility between high voltage level and cross-border frequency, and adapting to the dual scenarios of high voltage distribution network and cross-border energy projects.
2. Ultra high power carrying, optimal long-distance loss:
The rated current supports three options of 1250A/1600A/2000A, and the rated short-time withstand current is increased to 60kA/3s, which is more than 9% higher than the carrying capacity of 20KV products. The 2000A ultra high power version can carry extreme high load power supply; Simultaneously optimizing the conductor structure, the transmission loss of the line is reduced by 8% compared to 20KV products, and it can be adapted to ultra high power long-distance distribution scenarios (20km~30km) without the need for additional boosting and lowering equipment, reducing the construction and operation costs of the distribution network.
3. Extreme optimization of insulation arc extinguishing, worry free high voltage safety:
Ultra high purity SF6 gas (purity ≥ 99.9998%) is used as the insulation and arc extinguishing medium, and the rated pressure is increased to 0.09MPa at 20 ℃. The arc extinguishing chamber adopts a new type of ultra efficient arc extinguishing structure+four arc adsorption device, and the arc extinguishing efficiency is increased by 10% compared to 20KV products. The opening and extinguishing time is ≤ 9ms, which can quickly and reliably cut off various complex load currents and short-circuit transfer currents at 22KV level. There is no open flame, harmful emissions, or arc leakage during the arc extinguishing process; SF6 gas leakage rate ≤ 3 × 10 ⁻⁹ Pa · m ³/s, insulation performance meets international high-end high-voltage distribution standards, and eliminates various high-voltage insulation safety hazards.
4. High end intelligent operating mechanism, efficient self inspection and maintenance:
equipped with H-type five spring energy storage operating mechanism, adopting high-end military grade transmission structure and intelligent locking system, with a mechanical life of 2000 cycles. Added fault self inspection function, which can automatically detect the operating status, sealing performance, gas status, etc. of the mechanism, and timely warn if faults are found; Supports seven operation modes: manual, electric, remote control, intelligent linkage, automatic operation and maintenance, digital traceability, and fault self inspection. The electric operation adopts a high-end industrial grade PLC intelligent control module, which can achieve operation and maintenance automation, data visualization, and precise fault positioning, and is suitable for the intelligent unmanned operation needs of high-voltage distribution networks and multinational projects.
5. Top level comprehensive protection, covering all extreme scenarios:
The shell is made of high-strength epoxy resin segmented casting+high-end military grade anti-corrosion alloy shell, with a protection level of up to IP68++, which can effectively resist various extreme environments such as long-term deep water immersion (within 2m), strong corrosion, strong vibration, extreme high and low temperatures, strong ultraviolet rays, dust storms, etc; The applicable ambient temperature range is extended to -55 ℃~+70 ℃, and the altitude can be extended to 5500m. It can adapt to all extreme scenarios such as extreme cold, extreme heat, extreme high altitude, strong corrosion, dust storms, etc. Outdoor outdoor installation does not require additional protection, and is suitable for the dual needs of cross-border projects and domestic extreme environments.
The product has a rated peak withstand current of 135kA, rated lightning impulse withstand voltage of 205kV between phases and ground, 225kV between faults, rated short-time power frequency withstand voltage of 130kV between phases and ground, 140kV between faults; rated active load breaking current of 1250A/1600A/2000A is optional, rated cable charging current of 200A, can break no-load transformer capacity of 7100kVA, rated short-circuit transfer current of 50kA;
SF6 gas rated pressure (gauge pressure at 20 ℃) of 0.09MPa, equipped with gas density relay, sound and light alarm device, leakage online detection sensor, four arc adsorption device, intelligent operation and maintenance module, digital traceability module and fault self checking module. When the pressure is below 0.08MPa, it automatically alarms, uploads data and triggers linkage protection;
The applicable environmental humidity is that the average daily relative humidity does not exceed 95%, and the average monthly relative humidity does not exceed 90%. It can withstand strong corrosive gases, strong vibrations, extreme high and low temperature impacts, direct ultraviolet radiation, dust storms, and long-term deep water immersion;
The implementation standards include GB3804-2004, GB16926-2009, IEC 60265-1, IEC 62271-105, IEC 61850, and are compatible with EU EN standards and American ANSI standards, which can meet the compliance requirements of cross-border high-end energy projects and domestic high-end high-voltage distribution networks.
The product can be customized with ultra-high power versions (2000A), extreme environment adaptation versions (extreme cold, extreme heat, extreme high altitude, dust storms), cross-border project specific versions (multilingual operation interface, international certification), and intelligent upgrade versions. It can be equipped with fuses, lightning arresters, current transformers, voltage transformers, intelligent measurement and control devices, power quality monitoring modules, digital traceability systems, fault self checking systems and other accessories to form a complete high-end intelligent high-voltage protection system.
If you need detailed technical parameter tables, installation drawings, cross-border energy project adaptation plans, ultra-high power long-distance distribution solutions or sample applications, you can contact the manufacturer’s technical team for exclusive support. In addition, the product supports global technical services and can provide on-site installation, debugging, operation and maintenance guidance, as well as technical training for cross-border projects to ensure smooth project progress; Simultaneously supporting the digital upgrade of distribution networks, it can seamlessly integrate with domestic and foreign distribution network IoT platforms to achieve real-time monitoring and intelligent control of equipment operation status.
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Specification
| Item | Unit | Data | |
| Rated voltage | kV | 22 | |
| Main circuit lightning impulse withstand voltage (Same,relative/between fracture surfaces) (peak value) | kV | 125 | 145 |
| Main circuit 1-minute power frequency withstand voltage (Same,relative/between fracture surfaces) (peak value) | kV | 50 | 60 |
| 1-minute power frequency withstand voltage of auxiliary circuit | kV | ||
| Rated current | A | 630 | |
| Transfer current | A | 870 | |
| Rated short-circuit closing current (peak) | kA | 50 | |
| Rated short-time withstand current | kA | 20 | |
| Rated short-circuit duration | S | 3 | |
| Rated peak withstand current (peak) | kA | 50 | |
| Grounding switch closing current (peak) | kA | 20 | |
| Peak withstand current of grounding switch (peak) | kA | 50 | |
| Mechanical lifespan of load switch | times | 3000 | |
| Mechanical lifespan of grounding switch | times | 2000 | |
| Rated pressure of arc extinguishing chamber (20 °C) | bar | 1.45 | |
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FAQs
What are the core upgrade points and cross-border adaptation advantages of FLN36-22KV compared to FLN36-20KV products?
The core upgrade points are concentrated in four aspects: firstly, voltage and frequency. 22KV supports dual frequency adaptation, suitable for cross-border energy projects, while 20KV only supports 50Hz, suitable for domestic scenarios; The second is loss and carrying capacity. The transmission loss of 22KV is reduced by 8%, and the short-term withstand current is 60kA, which is more suitable for high-power long-distance distribution; The third is the operating mechanism. The 22KV has added a fault self checking function, which can automatically troubleshoot faults and make operation and maintenance more efficient; The fourth is the protection level, with a 22KV rating of IP68++, which can withstand long-term immersion in 2m deep water and has a wider range of environmental adaptability. Advantages of Cross border Adaptation: Compatible with international standards such as the European Union and the United States, supporting multilingual operations, providing international certification, and global technical services covering the entire lifecycle of cross-border projects, solving operational challenges in cross-border projects.
This product is suitable for high-power long-distance distribution scenarios (20km~30km). What parameters should be focused on when selecting?
In the selection of high-power long-distance distribution scenarios, it is important to focus on four core parameters: first, the rated current, with priority given to the 1600A/2000A version to ensure the ability to carry ultra large loads and avoid load overload; The second is short-term withstand current, which needs to be selected at a level of 50kA/60kA to withstand the impact of short-circuit current during long-distance power distribution; The third is SF6 gas pressure and leakage rate. A rated pressure of 0.09MPa and a leakage rate of 3 × 10 ⁻⁹ Pa · m ³/s can ensure long-term insulation stability and reduce operation and maintenance frequency; The fourth is transmission loss. After optimizing the product’s own loss, a line loss monitoring module is required to monitor the power loss during transmission in real time, ensuring that the loss is controlled within a reasonable range; At the same time, attention should be paid to environmental adaptation parameters, and the corresponding extreme environment adaptation version should be selected based on the environment along the long-distance power distribution route.
The product has added a fault self check function. What types of faults can be detected? How to deal with self check failure?
The fault self check function can detect five types of faults: first, faults in the operating mechanism (such as spring aging and locking failure); The second is SF6 gas failure (such as insufficient pressure, leakage, and purity not meeting standards); Thirdly, insulation faults (such as insulation breakdown hazards); The fourth is communication failure (such as communication interruption with the backend system); Fifth, there is a line fault (such as abnormal current and voltage). When the self check fails, the processing steps are as follows: firstly, cut off the control power of the equipment and confirm that the equipment is in the open and grounded state; The second is to check whether the power supply and wiring of the self checking module are normal. If it is a power or wiring problem, adjust it and restart the module; If there are no abnormalities in the power supply and wiring, it may be a fault in the internal components of the module. Professional technicians should be contacted to disassemble and replace the self checking module, calibrate it, and then put it back into use. It is strictly prohibited to disassemble the module by oneself.
How to ensure compliance with the distribution standards and certification requirements of the target country when using this product for cross-border high-end energy projects?
To ensure compliance with target country standards and certifications, three things need to be done: first, confirm the distribution standards of the target country in advance (such as EU EN standards, American ANSI standards), and manufacturers can optimize product parameters based on the standards to ensure product compliance; The second is to apply for relevant certifications in the target country in advance (such as EU CE certification, US UL certification), and the manufacturer can provide complete testing reports and certification documents to ensure smooth product access; The third is to customize the adaptation version, adjust the product operating voltage, communication protocol, and protection configuration according to the voltage, frequency, and environmental requirements of the target country, and provide multilingual operation manuals and maintenance manuals to ensure that local staff can operate and maintain normally. The manufacturer can provide certification related technical support to assist in completing the admission process.
The product has a protection level of IP68++and can withstand dust storms. What additional maintenance measures are required for outdoor installation in desert areas?
For outdoor installation in desert areas, three additional maintenance points need to be done: first, regular cleaning, cleaning the dust on the equipment casing every month to avoid dust accumulation affecting heat dissipation and insulation performance, cleaning the leak detection sensor and self checking module interface every three months to avoid dust jamming and functional failure; The second is sealing inspection, which should be conducted every 6 months to check the equipment sealing interface, replace aging seals, calibrate leak detection sensors, ensure stable sealing performance, and prevent dust from entering the equipment interior; The third is sand prevention and protection. A simple sand shelter should be built to reduce the direct impact of dust storms on the equipment. At the same time, a dust cover should be installed on the operating mechanism to prevent dust from entering the interior of the mechanism and causing jamming, ensuring the normal operation of the equipment.
Related Applications
Ultra high power long-distance high-voltage distribution: used for ultra high power long-distance high-voltage distribution scenarios (20km~30km) between cities and suburbs, large energy bases and distribution network main lines. It is installed in long-distance distribution network terminal stations and outdoor switch stations, responsible for converting 35KV high-voltage electricity into 22KV and transmitting it over long distances to the destination. The 22KV voltage level can effectively reduce transmission losses. The 2000A ultra high power version can carry ultra high load power supply, avoiding voltage drop and load overload caused by long-distance distribution. The intelligent linkage function can achieve load allocation and rapid fault handling, ensuring the stable operation of long-distance distribution and helping to upgrade the long-distance transmission capacity of distribution network.
High end heavy industrial core power distribution upgrade: Suitable for the core power distribution upgrade scenarios of large high-end heavy industrial plants (such as large metallurgical plants, heavy machinery plants, and large petrochemical plants), where the electrical load is extremely high, the load fluctuates violently, and there are extreme working conditions such as strong corrosion, strong vibration, high temperature and high voltage. The 22KV voltage level can meet the needs of industrial high-voltage power distribution upgrade, and the 2000A ultra high power version can bear the extreme high loads of large production equipment (such as steelmaking furnaces, large reaction vessels, and heavy compressors). The fault self inspection and automatic operation and maintenance functions can quickly troubleshoot and reduce operation and maintenance downtime. The high-end military grade anti-corrosion shell can resist the strong corrosion and strong vibration effects of industrial scenes, ensuring continuous and stable production of high-end heavy industry and improving production efficiency.
Extreme Environment High Voltage Distribution Network Upgrade: Used for high-voltage distribution network upgrade scenarios in extreme environments such as extreme cold, extreme heat, extreme high altitude, dust storms, etc., such as the northern extreme cold border (below -55 ℃), tropical desert areas (above+70 ℃), high-altitude high-altitude areas on the plateau (below 5500m), and desert mining areas. The extreme environment adaptation version of the product can perfectly adapt to various extreme working conditions. The IP68++high protection level can resist extreme environmental erosion, and the 22KV voltage level can meet the high voltage distribution upgrade needs in extreme environments. The intelligent remote operation and maintenance function can reduce the difficulty of on-site operation and maintenance in extreme environments, ensure the stable operation of distribution networks in extreme environment areas, and solve the problem of extreme environment distribution network upgrade.
