VS1-22

VS1-22 Vacuum Circuit Breaker

The 22KV VS1 circuit breaker is an indoor AC high-voltage vacuum circuit breaker designed for high-voltage distribution network backbone and special high-voltage scenarios. It is suitable for three-phase 50Hz/60Hz power frequency AC circuits, with a rated voltage of 22KV. Its core applications include control and protection of auxiliary distribution networks in ultra-high voltage substations, large-scale oil and gas field distribution networks, cross-border high-voltage distribution network hubs, and ultra large data center high-voltage distribution networks. This product has optimized its insulation level, breaking performance, and international compatibility based on the 20KV model.

It adopts a heavy-duty design that integrates the mechanism and circuit breaker, with a sturdy structure, excellent anti-interference and anti-corrosion performance. It supports two installation forms: fixed and withdrawable handcart, and is suitable for installation in special high-voltage switchgear. The product strictly complies with domestic GB standards and international IEC and ANSI standards, using a large capacity vacuum arc extinguishing chamber and corrosion-resistant contacts. It has excellent arc extinguishing performance, reliable breaking, no harmful gas emissions, and no noise pollution. It can effectively cope with super high current, complex faults, and harsh working conditions in special high-voltage scenarios, quickly cut off overload, short circuit, grounding and other fault currents, and ensure the safe and stable operation of special high-voltage distribution networks and equipment. It is suitable for working environments with altitude ≤ 4000m (non-standard review required) and ambient temperature -35 ℃~50 ℃.

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Features

1. Dual upgrade of breaking and insulation, suitable for special high voltage:

the rated short-circuit breaking current can reach 55-63kA, the rated short-time power frequency withstand voltage (1min) can reach 110kV (relative to ground, phase to phase), 120kV (fracture), and the rated lightning impulse withstand voltage (peak) can reach 180kV (relative to ground, phase to phase), 200kV (fracture). The insulation and breaking performance has been further upgraded compared to the 20KV model, which can stably withstand 22KV high voltage loads, reliably break the super large fault current in special high voltage scenarios, and has stronger operational stability.

2. Double standard deep compatibility, suitable for cross-border scenarios:

Simultaneously following domestic GB1984, DL/T403 standards and international IEC60056, IEC62271-106, ANSI standards, passing international authoritative certifications such as KEMA, CE, UL, etc., the electrical parameters and installation dimensions are fully compatible with similar international products, and can directly adapt to cross-border high-voltage distribution networks and foreign-related special projects without additional modifications, meeting the dual acceptance requirements of domestic and foreign projects.

3. Extremely protective performance, suitable for harsh working conditions:

the parts are made of high-end alloy materials that are corrosion resistant, high and low temperature resistant, and anti-aging. After special anti-corrosion, salt fog resistant, and electromagnetic interference resistant treatment, the sealing structure is designed with double seals, which have excellent dust prevention, moisture resistance, and flame and explosion resistance. It can adapt to harsh environments such as oil and gas fields, high altitude, and coastal transnational distribution networks. The mechanical life can reach 30000 times, and the number of short circuit breaks at full capacity can reach 100 times.

4. Intelligent high-end, efficient operation and maintenance:

Equipped with a high-end integrated intelligent monitoring system, it can monitor current, voltage, temperature, energy storage status, arc extinguishing chamber vacuum degree, mechanical characteristics and insulation performance in real time. It supports fault self diagnosis, remote opening and closing, remote fault positioning, trend analysis and warning, and data visualization functions. It can seamlessly integrate with mainstream distribution network automation systems at home and abroad, achieve unmanned and intelligent operation and maintenance, and greatly improve operation and maintenance efficiency.

5. Structural compatibility and strong customization:

adopting modular heavy-duty structural design, the core components can be interchanged with VS1 circuit breakers of the same voltage level at home and abroad, and are suitable for various specifications of special high-voltage switchgear; Support personalized requirements for ultra-high voltage auxiliary, oil and gas fields, data centers, and other scenarios, customizing rated current, breaking capacity, protection schemes, and intelligent functions to adapt to diverse special high voltage scenarios.

The rated current of this product covers 2500A~4000A, and different specifications such as 3150A and 4000A can be customized according to scene requirements. The rated short-circuit breaking current is 55~63kA, the rated short-circuit closing current can reach 137.5~160kA, the rated short-circuit duration is 4s, the closing time is 35~80ms, the opening time is 20~45ms, the closing bounce time is ≤ 1.5ms, the opening and closing asynchrony is ≤ 1.5ms, and the contact resistance is ≤ 80 μ Ω, meeting the ultra high current and high reliability requirements of special high-voltage 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 reinforced insulation solutions, oil and gas field scenarios can be customized with anti-corrosion and anti explosion solutions, and data center scenarios can be customized with anti electromagnetic interference solutions.

Each product undergoes strict type testing, factory inspection, and international certification, accompanied by complete domestic and international testing reports, certification documents, and multilingual manuals; Support customized manual/electric operation methods and special protection schemes, can be used with special high-voltage supporting equipment, and accessories can be conveniently supplied worldwide.

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    Specification

    Item Unit Data
    Rated voltage kV 22
    Rated frequency Hz 50
    Rated insulation level 1-minute power frequency withstand voltage (effective value) kV 60
    Lightning impulse withstand voltage (peak value) kV 145
    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

    FAQs

    What are the core differences between the 22KV VS1 circuit breaker and the 20KV model, and can they be used interchangeably?

    The core differences lie in insulation level, breaking performance, and international compatibility, which are not interchangeable. The 22KV model has better insulation and breaking performance (breaking current 55~63kA), is deeply compatible with international standards, and focuses on special high voltage and cross-border scenarios; The 20KV model focuses on domestic high-voltage distribution network backbone and large-scale energy bases, only following domestic standards, and its insulation and breaking performance is suitable for conventional high-voltage scenarios in China. There are significant differences in the rated voltage, insulation level, and structural dimensions between the two, and forced exchange can lead to arc extinguishing failure, equipment burnout, and even distribution network failures.

    Can this product be used for high-voltage distribution networks in large oil and gas fields?

    Sure. This product can be customized with anti-corrosion and explosion prevention strengthening solutions. The components have undergone special anti-corrosion treatment to resist corrosive gases and dust in oil and gas fields. The vacuum arc extinguishing design has no fire or explosion hazards and meets the safety requirements of the oil and gas field industry; The rated voltage is 22KV and the breaking current is 55-63kA, which is suitable for the load requirements of the high-voltage distribution network in oil and gas fields. It can be responsible for the power supply control and fault protection of drilling equipment, transmission pipelines, and booster stations, ensuring the safety and stability of oil and gas extraction and transportation.

    What international certifications has the product passed and can it meet the requirements for cross-border project acceptance?

    This product has passed international authoritative certifications such as KEMA, CE, and UL, strictly following IEC and ANSI international standards. It can provide internationally recognized type test reports, certification documents, and factory inspection reports, fully meeting the acceptance requirements of cross-border projects and export projects; Simultaneously providing multilingual manuals and operation manuals, which can adapt to the international management needs of cross-border projects, and accessories can be conveniently supplied globally.

    Can the intelligent monitoring system monitor the insulation performance in real time and how to handle any abnormalities?

    Sure. The built-in high-end intelligent monitoring system can monitor the insulation performance of equipment in real time. When the insulation performance drops to the warning value, a fault alarm signal is immediately sent to accurately feedback the location and degree of the abnormality. Solution: Immediately stop the equipment operation, cut off the power supply, contact professional personnel for insulation testing and investigation. If the insulation components are damaged, replace them in a timely manner; Daily insulation maintenance can be carried out in advance based on monitoring data to avoid the expansion of faults.

    What are the special high-voltage scenarios that this product is suitable for, and what is its customization capability?

    Mainly suitable for special high-voltage scenarios such as ultra-high voltage auxiliary distribution networks, large oil and gas fields, cross-border high-voltage distribution network hubs, and ultra large data centers; The customization ability is extremely strong, and it can customize the rated current, breaking capacity, operation mode, protection scheme (anti-corrosion, anti explosion, anti electromagnetic interference) and intelligent functions according to the needs of different scenarios. It can adapt to the personalized needs of various special high-voltage scenarios without replacing the main equipment.

    Related Applications

    Auxiliary distribution network of ultra-high voltage substation: used for auxiliary distribution network control and protection of 1000KV and 500KV ultra-high voltage substations, responsible for high-voltage power supply control and fault protection of auxiliary equipment such as cooling system, ventilation system, high-voltage energy storage system, fire protection system, etc. The structure is heavy-duty, with excellent impact and vibration resistance, and can adapt to the strong electromagnetic interference and vibration environment of ultra-high voltage substations, avoiding the impact of auxiliary system faults on the normal operation of ultra-high voltage substations.

    Large scale oil and gas field distribution network system: used for high-voltage distribution networks in large onshore oil and gas fields and offshore oil and gas platforms (requiring customized offshore protection plans). After anti-corrosion and explosion prevention strengthening design, it can adapt to the harsh environment of oil and gas fields, responsible for power supply control and fault protection of drilling equipment, oil and gas transmission pipelines, booster stations, and processing plants, quickly cutting off fault currents, avoiding safety hazards such as fires and explosions, and ensuring the safety and stability of oil and gas extraction and transportation.

    Cross border high-voltage distribution network hub: As the core connecting equipment of cross-border high-voltage distribution networks, it is used to connect high-voltage distribution networks in different countries. Due to its deep compatibility with international standards, it can achieve seamless integration of domestic and foreign distribution network equipment. It is responsible for power transmission, load distribution, and fault protection of the main lines of cross-border distribution networks, quickly cutting off fault currents, avoiding the spread of faults to different countries’ distribution networks, and ensuring the safety and stability of cross-border power transmission.

    High voltage distribution network for ultra large data centers: adapted to the high voltage incoming lines and main power distribution control of ultra large data centers. As a high-precision and high reliability power consumption scenario, the data center has excellent anti electromagnetic interference and stable operation performance. It can stably control the access and distribution of high voltage power supply, quickly cut off fault current, avoid data center shutdown and data loss caused by faults, and support intelligent monitoring to meet the 24-hour unmanned operation and maintenance needs of data centers.

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