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FLN36-33
FLN36-33 SF6 Load Break Switch
FLN36-33KV SF6 load switch is an indoor/outdoor universal AC high voltage switchgear specially developed for cross-border ultra large energy projects, high-voltage distribution network backbone line upgrades, and core distribution of super large industrial bases. It uses high-purity SF6 gas as insulation and arc extinguishing medium, strictly follows GB3804-2004, GB16926-2009, IEC 62271-105, IEC 61850, IEC 60694 standards for research and development and manufacturing, rated voltage 33KV, rated frequency 50/60Hz dual frequency adaptation, rated current 2500A/3150A/4000A optional, mechanical life ≥ 2800 cycles.
The product adopts a high-strength epoxy resin integral casting sealing structure, matched with a top-level anti-corrosion military alloy shell, equipped with a K-type six spring energy storage operating mechanism, which can achieve nine position precise linkage of “closing opening grounding locking energy storage self inspection linkage regulation backup”, supporting intelligent remote control, data acquisition, linkage regulation, automatic operation and maintenance, digital traceability, fault self inspection, multi device collaborative linkage, load precise regulation and emergency backup. 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, high-voltage distribution network backbone hub stations, and cross-border super large energy project distribution stations.
The core is used for 33KV High voltage distribution network backbone lines, cross-border ultra large energy projects, core distribution of ultra large industrial bases, and ultra long distance ultra large power distribution can rely on breaking normal load currents, cable charging currents, no-load transformer currents, and short-circuit transfer currents. They are top-level core equipment for ultra-high power, cross-border adaptation, and intelligent upgrading of high-voltage distribution networks.
Features
1. Top level high-voltage dual frequency compatibility, full coverage of cross-border scenarios:
specially developed for the top 33KV high-voltage level, the insulation structure and arc extinguishing system are fully upgraded according to the 33KV voltage standard, and the insulation gap is expanded by 10% compared to 30KV products, which can effectively resist the risk of high-voltage insulation breakdown; Simultaneously supporting 50/60Hz dual frequency adaptation, it is compatible with the upgrading scenarios of domestic high-voltage distribution network backbone lines and the distribution needs of global multinational super large energy projects (such as cross-border energy cooperation projects in Europe, America, the Middle East, and Southeast Asia). It can be directly put into use without additional modification, solving the core pain point of incompatibility between top-level high-voltage levels and cross-border frequencies and standards, and adapting to the dual needs of top-level high-voltage distribution network scenarios and multinational super large projects.
2. Top level power carrying, easy to cope with extreme loads:
The rated current supports three options: 2500A/3150A/4000A, and the rated short-time withstand current is increased to 75kA/3s, which is more than 7% higher than the carrying capacity of 30KV products. The 4000A ultra high power version can carry extreme high load power supply for multinational ultra large energy projects and ultra large industrial bases, making it the top configuration in terms of power carrying capacity among products in the same series; Simultaneously optimizing the conductor structure and heat dissipation design, adopting a new type of high-efficiency heat dissipation conductor, the transmission loss of the line is reduced by 7% compared to 30KV products, and it can be adapted to ultra high power and long-distance distribution scenarios (50km~60km) without the need for additional boosting and lowering equipment, greatly reducing the construction and operation costs of the distribution network, and improving distribution efficiency and stability.
3. Top level insulation arc extinguishing configuration, high voltage safety and absolute reliability:
using ultra-high purity SF6 gas (purity ≥ 99.99995%) as the insulation and arc extinguishing medium, the rated pressure is increased to 0.105MPa at 20 ℃. The arc extinguishing chamber adopts a new top-level ultra efficient arc extinguishing structure+seven arc adsorption device, and the arc extinguishing efficiency is increased by 9% compared to 30KV products. The opening and extinguishing time is ≤ 6ms, which can quickly and reliably cut off various complex load currents and short-circuit transfer currents at 33KV level. There is no open flame, harmful emissions, or arc leakage during the arc extinguishing process; The SF6 gas leakage rate is ≤ 5 × 10 ⁻¹⁰ Pa · m ³/s, and the insulation performance meets the international top-level high-voltage distribution standards, eliminating various high-voltage insulation safety hazards, ensuring long-term stable operation of equipment, and adapting to the top-level safety requirements of high-voltage distribution networks.
4. Top level intelligent operating mechanism, integrated operation and maintenance backup:
equipped with K-type six spring energy storage operating mechanism, adopting top-level anti-corrosion military grade transmission structure and intelligent locking system, the mechanical life is extended to 2800 cycles, which is 12% higher than 30KV products; On the basis of precise load regulation, an emergency backup function has been added to enable rapid emergency switching in case of equipment failure, ensuring uninterrupted power distribution; Supporting nine operation modes, the electric operation adopts top-level industrial grade PLC intelligent control module, integrates AI intelligent operation and maintenance algorithm, which can achieve full automation of operation and maintenance, fault prediction, data visualization, and precise fault positioning, adapting to the top-level intelligent unmanned and refined operation and maintenance needs of high-voltage distribution network.
5. Top level upgrade of protection, fully adaptable to complex scenarios:
The shell is made of high-strength epoxy resin integral casting+top-level anti-corrosion military alloy shell, with a protection level of up to IP68+++++, which can effectively resist long-term deep water immersion (within 3.5m), strong corrosion, strong vibration, extreme high and low temperatures, strong ultraviolet rays, dust storms, blizzards, strong lightning strikes, typhoons, sandstorms and all other complex extreme environments;
The applicable environmental temperature range can be extended to -70 ℃~+85 ℃, and the altitude can be extended to 7000m. It can adapt to extremely cold, extremely hot, extremely high altitude, strong corrosion, dust storms, blizzards, strong lightning strikes, typhoons, sandstorms and other complex extreme scenarios. Outdoor outdoor installation does not require additional protection, and it is suitable for the dual needs of multinational super large projects and top-level extreme scenarios in China.
The product has a rated peak withstand current of 165kA, rated lightning impulse withstand voltage of 250kV between phases and ground, 270kV between faults, rated short-time power frequency withstand voltage of 160kV between phases and ground, 170kV between faults; rated active load breaking current of 2500A/3150A/4000A is optional, rated cable charging current of 260A, can break no-load transformer capacity of 10000kVA, rated short-circuit transfer current of 65kA;
SF6 gas rated pressure (gauge pressure at 20 ℃) of 0.105MPa, equipped with gas density relay, sound and light alarm device, leakage online detection sensor, seven arc adsorption device, intelligent operation and maintenance module, digital traceability module, fault self checking module, multi device collaborative linkage module, load precision control module and emergency backup module, with pressure below 0.095MPa. Automatically alarm, upload data, and trigger linkage protection and emergency backup when Pa occurs;
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, blizzards, strong lightning strikes, typhoons, sandstorms, and long-term deep water immersion;
The implementation standards include GB3804-2004, GB16926-2009, IEC 60265-1, IEC 62271-105, IEC 61850, IEC 60694, and are compatible with EU EN standards, American ANSI standards, high-end distribution standards in the Middle East, Southeast Asian distribution standards, and top international cross-border energy project standards, which can meet the compliance requirements of cross-border ultra large energy projects and top domestic high-voltage distribution network scenarios.
The product can be customized with a high-power version (4000A) The fully complex extreme environment adaptation version (extreme cold, extreme heat, extreme high altitude, dust storms, strong lightning strikes, typhoons, sandstorms), cross-border ultra large project specific version (multilingual operation interface, international top-level certification), and intelligent upgrade version can be matched with fuses, lightning arresters, current transformers, voltage transformers, intelligent measurement and control devices, power quality monitoring modules, digital traceability systems, fault self checking systems, multi device collaborative linkage systems, load regulation systems, and emergency backup systems to form a complete top-level intelligent high-voltage protection system.
If you need detailed technical parameter tables, installation drawings, cross-border ultra large energy project adaptation plans, ultra high power and ultra long distance distribution plans or sample applications, you can contact the manufacturer’s technical team for exclusive support. The sentence is:. In addition, the product supports top-level global technical services and can provide on-site installation, debugging, operation and maintenance guidance, technical training, and long-term operation and maintenance support for cross-border large-scale energy projects, ensuring stable operation throughout the project lifecycle;
Simultaneously supporting the digitization and intelligent upgrading of distribution networks, it can seamlessly integrate with domestic and foreign distribution network IoT platforms and intelligent distribution systems to achieve real-time monitoring, intelligent regulation, load coordination, rapid fault handling, and emergency backup of equipment operation status, helping high-voltage distribution networks achieve top-level upgrades.
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Specification
| Item | Unit | Data | |
| Rated voltage | kV | 33 | |
| Main circuit lightning impulse withstand voltage (Same,relative/between fracture surfaces) (peak value) | kV | 185 | 215 |
| Main circuit 1-minute power frequency withstand voltage (Same,relative/between fracture surfaces) (peak value) | kV | 70 | 80 |
| 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 FLN36-33KV compared to FLN36-30KV products?
The core upgrade points are concentrated on five points: first, voltage and load capacity. The insulation gap of 33KV is expanded by 10%, supporting top power of 4000A, short-term withstand current of 75kA, and the load capacity reaches the top of the same series; The second is loss and transmission. The 33KV transmission loss is reduced by 7%, and it can be adapted to long-distance distribution from 50km to 60km, further expanding the transmission range; The third is the operating mechanism, with the addition of emergency backup function for 33KV, increasing the mechanical lifespan to 2800 times, and integrating AI intelligent operation and maintenance algorithms for more intelligent operation and maintenance; The fourth is the protection level, reaching IP68 at 33KV, capable of long-term immersion in 3.5m deep water, with added ability to adapt to sandstorms and more comprehensive environmental adaptation; The fifth is gas purity and leakage rate. 33KV SF6 has higher purity, lower leakage rate, and more reliable insulation safety. Advantages of Cross border Adaptation: Compatible with mainstream global distribution standards, supporting multiple language (English, Arabic, German, Japanese, etc.) operation interfaces, providing international top-level certifications such as EU CE, US UL, Middle East SASO, etc. Global technical services can cover global cross-border projects, solving the problems of standard adaptation, operation and emergency response for cross-border projects, and adapting to large-scale energy projects in Europe, America, the Middle East, Southeast Asia, and other countries.
This product supports 4000A ultra high power. How to select for cross-border ultra large energy projects?
Selection of multinational mega energy projects, with a focus on project scale and load capacity: firstly, for medium-sized multinational energy projects with a load capacity of less than 2500A, the 2500A version is chosen for higher cost-effectiveness and can meet the distribution needs of conventional multinational energy projects; Secondly, for large-scale cross-border energy projects with a load capacity of 2500A~3150A (such as cross-border photovoltaic power plants and wind farm supporting distribution), the 3150A version is selected, which can bear moderate extreme loads and is suitable for most cross-border energy projects; The third is for ultra large multinational energy projects with a load capacity of 3150A~4000A (such as core distribution of multinational thermal power stations and hydropower stations). Choosing the 4000A version can bear extremely high loads, ensuring uninterrupted core distribution of the project. At the same time, it needs to be equipped with emergency backup modules and multi device collaborative linkage modules to achieve fault emergency switching and load coordinated allocation, adapting to the top-level needs of ultra large multinational energy projects.
How to solve the problem of voltage drop during transmission when the product is suitable for 50km~60km ultra long distance power distribution?
To solve the problem of voltage drop in long-distance distribution, three things need to be done: first, equipment selection should prioritize the 4000A high-power version, which uses a new type of high-efficiency heat dissipation conductor, which can effectively reduce conductor loss and voltage drop; Simultaneously equipped with a precise load regulation module, real-time monitoring of line voltage changes, automatic adjustment of equipment operating parameters, compensation for voltage losses, and ensuring voltage stability within the standard range; The second is supporting equipment, including high-precision voltage monitoring equipment and power quality optimization equipment, which can monitor voltage changes in real time, optimize power quality in a timely manner, and avoid voltage fluctuations and drops; Simultaneously equipped with high-end transformers, adjust voltage parameters according to transmission distance to assist in stabilizing voltage; The third is line optimization, selecting high-quality high-voltage transmission lines to reduce line resistance, while planning the line path reasonably, shortening the actual transmission distance, reducing voltage loss, and ensuring that the voltage drop during the transmission process of 50km~60km is controlled within 5% to meet the normal needs of electrical equipment.
The product has added an emergency backup function. What specific emergency operations can be implemented? What is the emergency switching time?
The emergency backup function can achieve three core emergency operations: first, fault emergency switching. When the equipment fails (such as operating mechanism failure or SF6 gas leakage), the emergency backup mechanism is automatically triggered to quickly switch to the backup equipment and ensure uninterrupted power distribution; The second is emergency load transfer, which can automatically transfer the load from the faulty area to the non faulty area in case of a fault, avoiding losses caused by load interruption; The third is emergency alarm and linkage. When there is a malfunction, an emergency alarm will be automatically issued, and the fault information will be uploaded to the backend monitoring system. The professional technical team will be linked to quickly carry out fault handling. Emergency switching time ≤ 100ms, seamless emergency switching can be achieved, fully meeting the high requirements for distribution continuity in cross-border ultra large energy projects, super large industrial bases and other scenarios, ensuring uninterrupted core equipment and production processes.
This product is used in areas with high temperature, strong corrosion, and frequent sandstorms in the Middle East. What are the key points to pay attention to in daily operation and maintenance?
In areas with high temperatures, strong corrosion, and frequent sandstorms in the Middle East, daily operation and maintenance should focus on four points: first, heat dissipation maintenance. Clean the equipment heat sink every month, remove dust accumulation, and avoid overheating caused by poor heat dissipation in high temperature environments; At the same time, check the operation status of the cooling system to ensure normal cooling and adapt to extreme high temperatures of+85 ℃; The second is sealing and anti-corrosion maintenance. Check the equipment sealing interface and anti-corrosion coating every three months, replace aging seals, apply anti-corrosion coating, and resist strong corrosive environment erosion; Simultaneously calibrate SF6 gas leak detection sensors to ensure timely detection of leaks; The third is dust prevention maintenance. Clean the equipment casing and interface dust every 15 days, and clean the operating mechanism and self checking module interface every 3 months to avoid dust jams caused by sandstorms and malfunctions; Build sand shelters to reduce the direct impact of sandstorms; The fourth is emergency maintenance, equipped with emergency backup equipment and dust cleaning equipment. After a dust storm, the equipment should be thoroughly cleaned, inspected, and calibrated to ensure normal operation; Increase the frequency of operation and maintenance during high temperature seasons, and check the equipment operation status every half month to avoid equipment failures caused by high temperatures.
Related Applications
Core power distribution for cross-border mega energy projects: Suitable for cross-border mega thermal power plants, hydropower plants, centralized photovoltaic power plants, offshore wind farms and other cross-border energy projects in Europe, America, the Middle East, Southeast Asia, etc. This product can be used as a core switchgear, responsible for high-voltage distribution control, load regulation, fault isolation and emergency backup of the project. The dual frequency adaptation feature can perfectly comply with the distribution standards of different countries, The IP68++++high level of protection can adapt to the complex extreme environment of different countries, such as high temperature and strong corrosion in the Middle East, extreme cold and snow in Europe, typhoon rainstorm in Southeast Asia, sand storm in desert areas, etc. The 4000A super power version can carry the extremely high load power supply of super large energy projects, the emergency backup function can ensure the continuity of power distribution, and the global top technical services can ensure the stable operation of the project throughout its life cycle, help international energy cooperation and upgrading, and solve the power distribution problems of transnational super large energy projects.
Top level upgrade of high-voltage distribution network backbone: As the top-level core switch equipment for urban high-voltage distribution network and regional high-voltage distribution network backbone, it is installed in the hub station and outdoor switch station of the distribution network backbone, responsible for the core distribution, load regulation and fault isolation of the 110KV/220KV high-voltage power after voltage reduction (33KV). The 33KV voltage level can effectively reduce the transmission loss of the main line, and the 4000A ultra high power version can bear the extreme high load demand of the main line, The AI intelligent operation and maintenance, multi device collaborative linkage, and precise load control functions can achieve unmanned and refined operation and maintenance of the distribution network backbone, quickly handle faults, and balance load distribution. The emergency backup function can ensure that the distribution of the backbone line is not interrupted, avoid large-scale power outages, ensure the stable operation of high-voltage distribution network backbone lines, help urban distribution networks achieve top-level upgrades, and adapt to the upgrading scenarios of core distribution network backbone lines in large cities and regions.
Ultra high power and ultra long distance high-voltage distribution: used for ultra high power and ultra long distance high-voltage distribution scenarios (50km~60km) between large energy bases and distribution network main lines, cities and remote ultra large industrial areas. Installed in long-distance distribution network terminal stations and outdoor switch stations, responsible for converting 110KV/220KV high-voltage electricity into 33KV and transmitting it over long distances to the destination. The 33KV voltage level can effectively reduce long-distance transmission losses, 4000A The ultra high power version can carry ultra high load power supply, avoiding voltage drop and load overload caused by long-distance distribution. Intelligent linkage, fault collaborative processing, precise load regulation and emergency backup functions can achieve load allocation, rapid fault handling and emergency switching, ensuring stable and continuous operation of long-distance distribution, solving the problem of ultra long distance and ultra high power distribution, helping to further expand the coverage of distribution network, and adapting to remote and ultra large industrial areas and large energy bases for long-distance power supply scenarios.
