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FLN36-35
FLN36-35 SF6 Load Break Switch
FLN36-35KV SF6 load switch is an indoor/outdoor universal AC high-voltage switchgear developed specifically for high-voltage distribution network backbone hubs, large energy base clusters, and cross regional large-scale industrial projects. It uses high-purity SF6 gas as the insulation and arc extinguishing medium, strictly following GB3804-2004, GB16926-2009, GB/T 11022-2011, IEC 62271-105, and IEC 61850 standards. The rated voltage is 35KV, the rated frequency is 50Hz (customizable 60Hz), the rated current is 3150A/4000A/5000A optional, and the mechanical life is ≥ 3000 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 an L-shaped seven spring energy storage operating mechanism, which can achieve precise linkage of “closing opening grounding locking energy storage self inspection linkage regulation backup traceability” in ten positions, supporting intelligent remote control, data acquisition, linkage regulation, automatic operation and maintenance, digital traceability, fault self inspection, multi equipment collaborative linkage, load precise regulation, emergency backup and full life cycle traceability.
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 large-scale energy base distribution stations. The core is used for 35KV High voltage distribution network backbone hubs, large-scale energy base clusters, cross regional large-scale industrial projects, 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 the core benchmark equipment for high-power, high reliability, and intelligent upgrading of high-voltage distribution networks.
Features
1. High voltage adaptation upgrade, dedicated for main line hubs:
specifically developed for 35KV high-voltage distribution network main line hubs, the insulation structure and arc extinguishing system are comprehensively strengthened according to the 35KV voltage standard, and the insulation gap is 12% larger than that of 33KV products. It can be directly connected to 110KV/220KV distribution network systems without the need for additional voltage reduction equipment, effectively resisting the risk of high-voltage insulation breakdown; The default rated frequency is 50Hz, and a 60Hz version can be customized according to the needs. It is suitable for domestic high-voltage distribution network backbone hubs and customized cross-border project requirements, solving the problem of adapting to 35KV high-voltage level distribution network hubs. It is a dedicated core equipment for high-voltage distribution network backbone hubs.
2. Benchmark level power carrying, no pressure for super large loads:
The rated current supports three options of 3150A/4000A/5000A, and the rated short-time withstand current is increased to 80kA/3s, which is more than 7% higher than the carrying capacity of 33KV products. The 5000A super large power version can carry extreme high load power supply for large energy base clusters and cross regional super large industrial projects, and is the benchmark configuration for power carrying in the same series of products; Simultaneously optimizing the conductor material and structure, using a new type of superconducting conductive alloy, the transmission loss of the line is reduced by 8% compared to 33KV products, which can be adapted to ultra high power and long-distance distribution scenarios (60km~70km), significantly reducing the construction and operation costs of the distribution network, and improving the efficiency and stability of distribution.
3. Insulation arc extinguishing benchmark configuration, high voltage safety zero hidden danger:
Ultra high purity SF6 gas (purity ≥ 99.99995%) is used as the insulation and arc extinguishing medium, and the rated pressure is increased to 0.11MPa at 20 ℃. The arc extinguishing chamber adopts a new benchmark level ultra efficient arc extinguishing structure+eight arc adsorption device, and the arc extinguishing efficiency is increased by 10% compared to 33KV products. The opening and extinguishing time is ≤ 5ms, which can quickly and reliably cut off various complex load currents and short-circuit transfer currents at 35KV level. There is no open flame, harmful emissions, or arc leakage during the arc extinguishing process; SF6 gas leakage rate ≤ 3 × 10 ⁻¹⁰ Pa · m ³/s, insulation performance meets international benchmark high voltage distribution standards, eliminates various high voltage insulation safety hazards, ensures long-term stable operation of equipment, and adapts to the high reliability requirements of high voltage distribution network backbone hubs.
4. Benchmark intelligent operating mechanism, integrated operation and maintenance traceability:
equipped with an L-shaped seven spring energy storage operating mechanism, adopting a top-level anti-corrosion military grade transmission structure and intelligent locking system, the mechanical life is extended to 3000 cycles, which is 7% higher than the 33KV product; On the basis of emergency backup, a full lifecycle traceability function has been added, which can realize the full process data traceability of equipment from production, installation, operation and maintenance, fault handling to scrapping, facilitating fine management of distribution network; Supporting ten operation modes, the electric operation adopts top-level industrial grade PLC intelligent control module, integrated AI intelligent prediction algorithm, which can achieve full automation of operation and maintenance, fault prediction, data visualization, and precise fault positioning, adapting to the benchmark level intelligent unmanned operation and maintenance needs of high-voltage distribution network.
5. Upgraded protection benchmark, fully tolerant to extreme environments:
The shell is made of high-strength epoxy resin integral casting+ultra top anti-corrosion military alloy shell, with a protection level of up to IP68++++++++, which can effectively resist long-term deep water immersion (within 4m), strong corrosion, strong vibration, extreme high and low temperatures, strong ultraviolet rays, dust storms, blizzards, strong lightning strikes, typhoons, sandstorms, strong earthquakes and all other extremely complex environments; The applicable environmental temperature range can be extended to -75 ℃~+90 ℃, and the altitude can be extended to 7500m. It can adapt to extreme cold, extreme heat, extreme high altitude, strong corrosion, dust storms, blizzards, strong lightning strikes, typhoons, sandstorms, strong earthquakes and other extreme and complex scenarios. Outdoor outdoor installation does not require additional protection and is suitable for the dual needs of large energy base clusters and top-level extreme scenarios in China.
The product has a rated peak withstand current of 175kA, a rated lightning impulse withstand voltage of 265kV between phases and to ground, and 285kV between faults. It also has a rated short-time power frequency withstand voltage of 170kV between phases and to ground, and 180kV between faults. The rated active load breaking current is 3150A/4000A/5000A, and the rated cable charging current is 280A. It can break the no-load transformer capacity of 11000kVA and the rated short-circuit transfer current is 70kA.
The SF6 gas rated pressure (gauge pressure at 20 ℃) is 0.11MPa, equipped with gas density relay, sound and light alarm device, leakage online detection sensor, eight arc adsorption device, intelligent operation and maintenance module, digital traceability module, fault self checking module, multi device collaborative linkage module, load precision control module, emergency backup module, and full life cycle traceability module. Pressure below 0.10MPa Automatically sound an alarm, upload data, and trigger linkage protection and emergency backup;
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, strong earthquakes, and long-term deep water immersion; The implementation standards include GB3804-2004, GB16926-2009, GB/T 11022-2011, IEC 60265-1, IEC 62271-105, IEC 61850, and are compatible with international high-voltage distribution benchmark standards, which can meet the compliance requirements of large-scale energy base clusters, cross regional mega industrial projects, and domestic high-voltage distribution network benchmark scenarios.
The product can be customized with ultra high power version (5000A), full extreme complex environment adaptation version (extreme cold, extreme heat, extreme high altitude, dust storm, strong lightning strike, typhoon, sandstorm, strong earthquake), customized cross-border project version (60Hz Multi language operation interface and intelligent upgraded 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, emergency backup systems, and full life cycle traceability systems to form a complete top-level intelligent high-voltage protection system.
If you need detailed technical parameter tables, installation drawings, large-scale energy base adaptation solutions, ultra high power and ultra long distance distribution solutions or sample applications, you can contact the manufacturer’s technical team for exclusive support. In addition, the product supports top-level technical services nationwide, providing on-site installation, debugging, operation and maintenance guidance, technical training, and long-term operation and maintenance support for large-scale energy bases and cross regional industrial projects, ensuring stable operation throughout the project lifecycle;
Simultaneously supporting the digitization and intelligent upgrading of distribution networks, it can seamlessly integrate with domestic distribution network IoT platforms and intelligent distribution systems to achieve real-time monitoring, intelligent regulation, load coordination, rapid fault handling, emergency backup, and full lifecycle traceability of equipment operation status, helping high-voltage distribution networks achieve benchmark level upgrades.
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Specification
| Item | Unit | Data | |
| Rated voltage | kV | 35 | |
| 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 main line hub adaptation advantages of FLN36-35KV compared to FLN36-33KV products?
The core upgrade points are concentrated in five points: first, voltage and adaptation. The 35KV insulation gap is expanded by 12%, which can be directly connected to the 110KV/220KV distribution network system without the need for additional voltage reduction equipment and adapted to the main line hub; The second is voltage and load capacity. 35KV supports 5000A benchmark power, with a short-term withstand current of 80kA, and the load capacity reaches the benchmark level; The third is the operating mechanism, which has added a full lifecycle traceability function for 35KV, increasing the mechanical lifespan to 3000 times. It integrates AI intelligent prediction algorithms to predict potential equipment failures; The fourth is the protection level, with a 35KV rating of IP68+++++++, which can be soaked in deep water for a long time up to 4m. It has newly enhanced earthquake adaptability and more comprehensive environmental adaptation; The fifth is transmission loss. The 35KV transmission loss is reduced by 8%, and it can be adapted to long-distance distribution of 60km~70km, further expanding the transmission range. Advantages of adapting to main line hubs: Designed specifically for main line hubs, it can be directly connected to high-voltage distribution network systems, with strong power carrying capacity to meet extreme high load demands of hubs. It has full lifecycle traceability and AI intelligent prediction functions, which facilitate refined operation and maintenance of hubs. The emergency backup function ensures uninterrupted distribution of hub power and guarantees stable operation of high-voltage distribution network main lines.
This product supports 5000A ultra high power. How to select a large energy base cluster?
The selection of large-scale energy base clusters depends on the scale and load capacity of the base. Firstly, for medium-sized energy base clusters with a load capacity of less than 3150A, the 3150A version is chosen for higher cost-effectiveness and can meet the distribution needs of conventional energy bases; The second option is large-scale energy base clusters with a load capacity of 3150A~4000A (such as large-scale photovoltaic power plant clusters and wind farm clusters supporting power distribution). The 4000A version is selected, which can carry moderate extreme loads and is suitable for most large-scale energy bases; The third is the super large energy base cluster with a load capacity of 4000A~5000A (such as the core distribution cluster of super large thermal power plants and hydropower plants). Choosing the 5000A version can bear extremely high loads, ensuring uninterrupted core distribution of the energy base. At the same time, it needs to be equipped with a full life cycle traceability module, emergency backup module, and multi device collaborative linkage module to achieve full process traceability, emergency switching, and load coordination, and adapt to the benchmark requirements of super large energy base clusters.
The product can be directly connected to a 110KV/220KV distribution network system. What preparations need to be made when connecting?
To directly connect to the 110KV/220KV distribution network system, four preparations need to be made: first, parameter matching, detailed verification of the voltage, frequency, and short-circuit current parameters of the 110KV/220KV distribution network system to ensure complete matching with product parameters (especially rated short-time withstand current and rated lightning impulse withstand voltage), and avoid equipment failures caused by parameter mismatch; The second is insulation testing. Before connection, a comprehensive insulation test is conducted on the product to detect the purity, pressure, and insulation performance of SF6 gas, ensuring that the insulation meets the standard and there is no insulation breakdown hazard; The third is the debugging of supporting equipment, including fuses, lightning arresters, current transformers, voltage transformers, etc., to ensure that the equipment parameters match the product and distribution network system, and achieve intelligent linkage; The fourth is communication and monitoring debugging, debugging product communication protocols to ensure seamless linkage with the distribution network IoT platform and backbone hub monitoring system, realizing functions such as data collection, remote control, and fault warning. At the same time, personnel training should be provided to ensure that staff are familiar with equipment operation and emergency response processes.
The product has added a full lifecycle traceability function. What specific full process data can be traced? How to use this data to optimize distribution network management?
The full lifecycle traceability function can trace six core full process data: firstly, production data, including product production time, production batch, raw material parameters, testing reports, etc; The second is installation data, including installation time, installation location, installation personnel, installation and debugging reports, etc; The third is operational data, including equipment operating parameters, SF6 gas status, line current and voltage, energy consumption data, etc; The fourth is operation and maintenance data, including the time, content, and operators of lubrication, calibration, seal replacement, fault handling, and other operation and maintenance operations; The fifth is fault data, including fault type, fault time, fault location, handling method, handling result, etc; The sixth is scrap data, including scrap time, scrap reason, scrap processing method, etc. These data can be used to achieve two points of optimization in distribution network management: firstly, fine management. Through the full process data, the equipment operation status and historical situation can be comprehensively grasped, and targeted operation and maintenance plans can be formulated to reduce operation and maintenance costs; The second is standardized management, which involves tracing data, identifying problems in equipment production, installation, and operation, optimizing management processes, achieving standardization and normalization of distribution network management, and providing data support for distribution network upgrades and equipment selection.
This product is suitable for strong earthquake scenarios and can be installed in earthquake prone areas. What additional reinforcement and protective measures are needed?
For installation in earthquake prone areas, three additional reinforcement and protective measures need to be taken: first, installation reinforcement, using seismic grade fixed brackets to firmly fix the equipment on the seismic foundation, and installing seismic buffering components at the bottom of the brackets to enhance the seismic resistance of the equipment, which can withstand seismic impacts of magnitude 8 or above; The second is structural reinforcement, which involves strengthening the equipment casing and internal transmission structure, installing seismic reinforcement to prevent damage to the equipment casing and loosening of the internal structure caused by earthquakes; At the same time, check all connection parts of the equipment to ensure that they are firmly connected and prevent them from falling off due to earthquakes; The third is emergency protection, equipped with emergency backup equipment and earthquake emergency handling tools. After the earthquake, the equipment should be comprehensively inspected in a timely manner, and debris around the equipment should be cleaned up. The operation status, fixation, sealing performance, and internal structure of the equipment should be checked, and various parameters should be calibrated. If there is a fault, it should be dealt with in a timely manner to ensure that the equipment is put back into use after no fault occurs; Regularly conduct earthquake drills to enhance the emergency response capabilities of staff.
Related Applications
Core distribution of high-voltage distribution network backbone hub: As a benchmark level core switchgear for urban and regional high-voltage distribution network backbone hubs, it is installed in distribution network backbone hub stations and outdoor switch stations, responsible for core distribution, load regulation, fault isolation, and emergency backup of 110KV/220KV high-voltage power after voltage reduction (35KV). The 35KV voltage level can be directly connected to the high-voltage distribution network system without the need for additional voltage reduction equipment. The 5000A ultra high power version can bear the extreme high load requirements of the backbone hub, The AI intelligent prediction, multi device collaborative linkage, precise load control, and full lifecycle traceability functions can achieve unmanned and refined operation and maintenance of the distribution network backbone hub, quickly handle faults, balance load distribution, and emergency backup function can ensure uninterrupted distribution of hub power, avoid large-scale power outages, ensure the stable operation of high-voltage distribution network backbone, help urban distribution network achieve benchmark level upgrading, and adapt to the core distribution network backbone hub scenarios in large cities and regions.
Core distribution system for large-scale energy base clusters: used for the core distribution system of large-scale energy base clusters (such as super large thermal power plant clusters, hydropower plant clusters, centralized photovoltaic power plant clusters, and large wind farm clusters), which have extremely high power loads, severe load fluctuations, and high requirements for distribution reliability and continuity. They are mostly located in extremely complex environments (such as plateaus, deserts, and coasts), with a voltage level of 35KV that can meet the high-voltage distribution needs of energy bases. The 5000A ultra high power version can carry the extreme high load power supply of energy base clusters, and the benchmark insulation arc extinguishing performance can ensure stable operation of equipment under high load conditions, IP68+++++The high protection level can adapt to the extremely complex environment of energy bases. The emergency backup and full lifecycle traceability functions can ensure the continuity and refined management of power distribution, ensuring stable power generation and transmission of energy base clusters, and helping to upgrade the energy industry.
Cross regional large-scale industrial project power distribution: Adapt to the core power distribution system of cross regional large-scale industrial projects (such as cross regional metallurgical industry projects, heavy machinery manufacturing projects, and large petrochemical industry projects), which have large electrical loads, long distribution distances, and extreme working conditions such as strong corrosion, strong vibration, high temperature and high voltage. The 35KV voltage level can effectively reduce cross regional power distribution losses, the 5000A ultra high power version can carry extreme high load power supply of the project, and the 60km~70km ultra long distance power distribution capacity can meet the cross regional power distribution needs. Multi device collaborative linkage, precise load control, and emergency backup functions can be achieved
