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VS1-40.5
VS1-40.5 Vacuum Circuit Breaker
The 40.5KV VS1 circuit breaker is an indoor AC high-voltage vacuum circuit breaker designed for the top of high-voltage distribution networks, ultra-high voltage auxiliary distribution networks, and top-level special energy scenarios. It is suitable for three-phase 50Hz/60Hz power frequency AC circuits, with a rated voltage of 40.5KV. Its core applications include control and protection of ultra-high voltage substation auxiliary distribution networks, large-scale nuclear power core auxiliary distribution networks, international top energy projects, and ultra large heavy industry enterprise high-voltage distribution networks.
This product adopts a top-level heavy-duty design that integrates mechanism and circuit breaker, integrates international advanced technology, has a sturdy structure, excellent performance, and ultimate reliability. It supports two installation forms: fixed and withdrawable handcart, and is suitable for installation in top-level special high-voltage switchgear.
The product strictly follows the domestic GB standards and the highest international IEC and ANSI standards, using top-level ultra large capacity vacuum arc extinguishing chambers and new corrosion-resistant contact materials. The arc extinguishing speed is extremely fast, the breaking ability is extremely strong, there are no harmful gas emissions, no noise pollution, and it can effectively deal with ultra-high currents, extreme faults, and harsh working conditions at the top of high-voltage distribution networks and special energy scenarios.
It can quickly cut off overload, short circuit, grounding and other fault currents, ensuring the safe and stable operation of top-level high-voltage distribution networks and core equipment. It is suitable for working environments with altitude ≤ 4500m (non-standard review required) and ambient temperature of -40 ℃~55 ℃. It is the top preferred equipment for high-voltage distribution network top and special energy scenarios.
Features
1. Top notch breaking and insulation, peak performance:
Adopting a top-level ultra large capacity longitudinal magnetic field vacuum arc extinguishing chamber, the new copper chromium alloy contacts are resistant to erosion and have excellent conductivity. The rated short-circuit breaking current can reach 80-100kA, the rated short-circuit closing current can reach 200-250kA, the rated short-time power frequency withstand voltage (1 minute) can reach 145kV (relative to ground, phase to phase), 160kV (fracture), and the rated lightning impulse withstand voltage (peak) can reach 230kV (relative to ground, phase to phase), 250kV (fracture). The insulation and breaking performance reaches the peak level of similar products, and can stably withstand 40.5KV high voltage loads to cope with extreme fault conditions.
2. Compatible with top international standards and suitable for top international projects:
Strictly following domestic GB1984 and DL/T403 standards, while complying with the highest international standards of IEC60056, IEC62271-106, ANSI, and passing international top authority certifications such as KEMA, CE, UL, TUV, DNV, etc., electrical parameters, installation dimensions, and performance indicators are fully compatible with international top similar products, and can directly adapt to international top energy projects and foreign-related special top projects, meeting the acceptance requirements of top projects.
3. Extreme environment adaptation and ultimate reliability:
the top end alloy materials that are resistant to high and low temperature, corrosion, aging, salt spray, radiation and impact are used. The parts have been specially strengthened, and the triple seal structure design has excellent dust prevention, moisture-proof, salt spray, electromagnetic interference, shock resistance, vibration resistance, and flame and explosion resistance. It can adapt to extreme environments such as high altitude, high cold, high temperature, high pollution, oil and gas corrosion, nuclear radiation. The mechanical life can reach 30000 times, the breaking times of full capacity short circuit current can reach 150 times, and the electrical life can meet E4 level.
4. Intelligent top-level integration, intelligent operation and maintenance:
Built in top-level integrated intelligent monitoring and control system, can monitor all key parameters such as current, voltage, temperature, energy storage status, arc extinguishing chamber vacuum degree, mechanical characteristics, insulation performance in real time, support fault self diagnosis, remote opening and closing, remote fault positioning, trend analysis and warning, data visualization, intelligent scheduling linkage and fault tracing functions, can seamlessly connect with top domestic and foreign distribution network automation systems, achieve unmanned operation and maintenance throughout the entire process, intelligent operation and maintenance, and intelligent scheduling, greatly improving operation and maintenance efficiency and management level.
5. Customized and precise, suitable for special top-level scenarios:
Supports personalized and top-level requirements based on ultra-high voltage auxiliary, nuclear power core, and international top-level energy projects, accurately customizing rated current, breaking capacity, operation mode, protection scheme, intelligent function, and installation form. It can adapt to various extreme working conditions and special top-level scenarios, and can also be used with international top-level high-voltage supporting equipment, achieving top-level universality and adaptability.
The rated current of this product covers 4000A~6300A, and different specifications such as 5000A and 6300A can be customized according to scene requirements. The rated short-circuit breaking current is 80~100kA, the rated short-circuit closing current can reach 200~250kA, the rated short-circuit duration is 4s, the closing time is 35~80ms, the opening time is 20~35ms, the closing bounce time is ≤ 0.8ms, the opening and closing asynchrony is ≤ 0.8ms, and the contact resistance is ≤ 50 μ Ω, meeting the requirements of ultra-high current, high reliability, and high safety in high-voltage distribution network top and special top-level scenes.
The suitable environmental conditions are: the daily average relative humidity does not exceed 95%, the monthly average does not exceed 90%, the earthquake intensity does not exceed 8 degrees, and there are no places with severe vibration, strong chemical corrosion, explosion hazards, or serious pollution; High altitude scenarios (>2500m) can be customized with top-level reinforced insulation solutions, while high-altitude scenarios (below -40 ℃) can be customized with top-level low-temperature adaptive operating mechanisms and components.
High temperature, high pollution, oil and gas corrosion, and nuclear radiation scenarios can be customized with corresponding top-level protection solutions. Each product undergoes strict type testing, factory inspection, extreme environment testing, and international top-level certification, accompanied by complete domestic and international testing reports, certification documents, and multilingual top-level operation and maintenance manuals; Support customized manual/electric operation modes and top-level protection solutions, can be used with international top-level high-voltage supporting equipment, and accessories can be conveniently supplied globally.
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Specification
| Item | Unit | Data | ||||
| Rated voltage | kV | 40.5 | ||||
| Rated frequency | Hz | 50 | ||||
| Rated insulation level | 1-minute power frequency withstand voltage (effective value) | kV | 80 | |||
| Lightning impulse withstand voltage (peak value) | kV | 215 | ||||
| Rated current | A | 630 | 630 | 1250 | 1600 | |
| 1250 | 1250 | 1600 | 2000 | |||
| 2000 | 2500 | |||||
| 2500 | 3150 | |||||
| 4000 | ||||||
| Rated short-circuit breaking current | kA | 20 | 25 | 31.5 | 40 | |
| Rated short-time withstand current | 20 | 25 | 31.5 | 40 | ||
| Rated short-circuit closing current | 50 | 63 | 80 | 100 | ||
| Rated peak withstand current | 50 | 63 | 80 | 100 | ||
| Rated short-circuit duration | S | 4 | ||||
| Rated operating sequence | O – 0.3s – CO – 180s – CO | |||||
| Split 180s Split 180s Split (40kA) | ||||||
| Rated short-circuit current breaking times | 30/20 | |||||
| Mechanical lifespan | 10000 | |||||
| Rated breaking current of a single capacitor bank | 630 | |||||
| Rated back-to-back capacitor bank breaking current | 400 | |||||
| Grounding fault breaking current of different phases | kA | 10 | ||||
| Allowable wear and accumulated thickness of dynamic and static contacts | 3 | |||||
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FAQs
What are the core differences and adaptation scenarios between the 40.5KV VS1 circuit breaker and the 36KV model?
The core differences lie in performance level, extreme environment adaptability, and international certification level. The adaptation scenarios are positioned differently and cannot be interchangeable. The performance of the 40.5KV model reaches its peak (breaking current of 80-100kA), which can adapt to top-level special scenarios such as nuclear radiation and extreme high current. It has passed more international top-level certifications, focusing on ultra-high voltage auxiliary, nuclear power core, and international top-level projects; The 36KV model has the second highest performance and is suitable for high-end foreign-related and conventional special high voltage scenarios. It cannot meet the extreme load and environmental requirements of top-level scenarios, and there are significant differences in voltage, performance, and certification between the two.
Can this product be used for large-scale nuclear power core auxiliary distribution network systems?
Sure. This product is designed specifically for the core auxiliary distribution network of nuclear power plants, with reliable performance and extremely high safety. It has undergone extreme reinforcement treatment for radiation, vibration, electromagnetic interference, and explosion prevention, meeting the top-level safety standards of nuclear power equipment. The rated voltage is 40.5KV and the breaking current is 80-100kA, which is suitable for the ultra large load requirements of the core auxiliary distribution network of nuclear power plants. It can be responsible for the power supply control and fault protection of auxiliary equipment such as the core cooling system, emergency power supply system, and circulating water core system in the nuclear power plant area, avoiding the impact of auxiliary system failures on the normal operation of nuclear power projects, eliminating safety hazards, and ensuring nuclear power safety.
What is the special significance of the product's closing bounce time ≤ 0.8ms?
The closing bounce time ≤ 0.8ms is a core characteristic performance indicator of top-level high-voltage circuit breakers, which is of great significance. Firstly, it minimizes contact wear and arc erosion, extends the service life of the arc extinguishing chamber and contacts, and reduces the high operation and maintenance costs in top-level scenarios; The second is to completely eliminate hidden dangers such as arc reignition and insulation damage, greatly improve the reliability of closing and opening, especially suitable for ultra-high current and extreme fault scenarios, which can effectively ensure the safety and stability of core equipment and distribution networks such as nuclear power plants and ultra-high voltage auxiliary systems, far exceeding the performance of ordinary high-end models.
What is the core of special modification when used in extreme environments (nuclear radiation, high cold)?
Core of Nuclear Radiation Scene Transformation: Using top-grade alloy materials and insulation materials that are resistant to nuclear radiation, all electrical components are sealed for radiation protection, optimizing structural design to avoid component aging and insulation performance degradation caused by nuclear radiation, and ensuring long-term stable operation of equipment in nuclear radiation environments; The core of the high-altitude (below -40 ℃) scene transformation is to customize top-level low-temperature resistant operating mechanisms and components, select top-level low-temperature resistant lubricating grease, optimize sealing and heating devices, avoid mechanical jamming, insufficient energy storage, and decreased insulation performance caused by low temperature, and ensure the normal start-up and operation of equipment in extreme high-altitude environments.
Can the intelligent control system of this product achieve seamless linkage with top international distribution automation systems?
Sure. The product is equipped with a top-level integrated intelligent control system that adopts international standard top-level data transmission protocols. It can seamlessly integrate with international top-level distribution network automation systems such as Schneider, Siemens, ABB, GE, etc., achieving full functional linkage such as remote opening and closing, fault alarm, status monitoring, trend warning, intelligent scheduling, and fault tracing. The data transmission is precise, stable, and efficient, and can achieve full process unmanned and intelligent scheduling of high-voltage distribution network top and special top-level scenarios, adapting to the intelligent needs of international top-level projects.
Related Applications
Auxiliary distribution network system of ultra-high voltage substation: used as the core auxiliary high voltage distribution network of 1000KV ultra-high voltage substation, as the top-level supporting equipment of ultra-high voltage power grid, responsible for the power supply control and fault protection of core auxiliary systems such as high voltage energy storage, high voltage cooling, high voltage control, emergency power supply, etc. of ultra-high voltage substation, with peak performance and extremely high reliability, able to adapt to the strong electromagnetic interference, vibration, and ultra high current environment of ultra-high voltage substation, avoid the impact of supporting system faults on the main power transmission of ultra-high voltage power grid, and ensure the safe and stable operation of ultra-high voltage power grid.
Large scale nuclear power core auxiliary distribution network: adapted to the core auxiliary distribution network system of large nuclear power projects, responsible for high-voltage power supply control and fault protection of core auxiliary equipment such as core cooling system, emergency power supply system, circulating water core system, and nuclear fuel processing auxiliary system in the nuclear power plant area. After extreme strengthening treatment such as radiation and vibration prevention, it meets the strict safety requirements of nuclear power equipment, can quickly cut off fault current, avoid auxiliary system failures affecting the normal operation of nuclear power projects, eliminate nuclear safety hazards, and ensure the safety and stability of nuclear power.
International top-level energy projects: High voltage distribution networks used for international top-level energy cooperation projects such as photovoltaic power plants, wind power plants, and deep-sea oil and gas exploration projects. Due to the product’s international top-level certification and compatibility with international top-level standards, it can directly adapt to the needs of international top-level projects, responsible for the collection, transmission control, and protection of project electricity, and can adapt to the extreme environment where the project is located (high altitude, deep-sea surroundings, etc.), ensuring the safe and efficient operation of international top-level energy projects, and improving project quality and international competitiveness.
