- Telephone: +86-139-8977-9778
- Email: jack@toonice.com
- English
VS1-17.5
VS1-17.5 Vacuum Circuit Breaker
The 17.5KV VS1 circuit breaker is an indoor AC high voltage vacuum circuit breaker designed for special medium and high voltage scenarios and international adaptation needs. It is suitable for three-phase 50Hz/60Hz power frequency AC circuits, with a rated voltage of 17.5KV. Its core applications include control and protection of foreign-related medium-sized industrial enterprises, multinational mining areas, international standard medium and high voltage distribution networks, and special equipment supporting distribution networks.This product meets both domestic GB standards and international IEC and ANSI standards. It adopts an integrated modular design of mechanism and circuit breaker, with reliable structure and strong compatibility.
It supports two installation forms: fixed and withdrawable handcart, and is suitable for the installation of international standard medium-sized high-voltage switchgear. The product adopts high-precision vacuum arc extinguishing chamber and corrosion-resistant contact materials, with excellent arc extinguishing performance, reliable breaking, no harmful gas emissions, no noise pollution, and can effectively cope with complex loads and harsh working conditions of foreign-related scenarios and special equipment. It can quickly cut off overload, short circuit, and zero sequence fault currents, ensure the safe and stable operation of special medium and high voltage distribution networks and equipment, and adapt to working environments with altitude ≤ 3000m and ambient temperature of -30 ℃~50 ℃. It is the preferred equipment for foreign-related special medium and high voltage scenarios.
Features
1. Dual standard compatibility, suitable for foreign-related scenarios:
Strictly following domestic GB1984 and DL/T403 standards, while complying with international IEC60056, IEC62271-106, and ANSI standards, passing international authoritative certifications such as KEMA and CE, electrical parameters and installation dimensions are compatible with similar international products, and can directly adapt to foreign-related projects, cross-border mining areas, and imported distribution equipment without additional modifications, meeting international project acceptance requirements.
2. Parameter optimization and adaptation to special loads:
The rated short-circuit breaking current can reach 45~55kA, the rated short-time power frequency withstand voltage (1min) can reach 90kV (relative to ground, phase to phase), 100kV (fracture), and the insulation and breaking performance is between 15KV and 20KV. It is specially adapted to 17.5KV special voltage scenarios and can reliably break complex loads and fault currents of special equipment and cross-border mining areas. The insulation recovery speed after arc is fast, and the operation stability is high.
3. Structural compatibility and excellent interchangeability:
Adopting international standard modular structure design, core components such as arc extinguishing chamber and operating mechanism can be interchanged with international VS1 circuit breakers of the same voltage level. At the same time, it is compatible with both domestic and international standards of high-voltage switchgear. The handcart model adopts international standard plug-in structure, which is smooth and can achieve live extraction maintenance, reducing power outage range and downtime.
4. Upgrade protection and adapt to harsh working conditions:
the parts are made of high quality alloy materials that are resistant to temperature, corrosion and aging. After special anti-corrosion and anti salt fog treatment, the sealing structure is optimized, with good dust-proof, moisture-proof and anti electromagnetic interference performance, and can adapt to the complex climate and environmental conditions in transnational mining areas and foreign-related industrial areas. The mechanical life can reach 30000 times, and the breaking times of full capacity short circuit current can reach 80 times.
5. Intelligent and universal, convenient operation and maintenance:
International standard intelligent control interfaces are reserved, and international universal intelligent monitoring units can be installed to achieve remote opening and closing, real-time monitoring of operating status, fault self diagnosis, and remote fault location functions. It supports linkage with international mainstream distribution network automation systems and provides a multilingual operation and maintenance interface to meet the intelligent and international operation and maintenance needs of foreign-related projects.
The rated current of this product covers 1600A~3150A, and different specifications such as 2000A, 2500A, 3150A can be customized according to the needs of the scene. The rated short-circuit breaking current is 45~55kA, the rated short-circuit closing current can reach 112.5~137.5kA, the rated short-circuit duration is 4s, the closing time is 35~75ms, the opening time is 20~50ms, the closing bounce time is ≤ 2ms, the opening and closing asynchrony is ≤ 2ms, and the contact resistance is ≤ 100 μ Ω, meeting the load requirements of foreign-related special medium and high voltage scenarios.
The suitable environmental conditions are: daily average relative humidity not exceeding 95%, monthly average not exceeding 90%, earthquake intensity not exceeding 8 degrees, no severe vibration, strong chemical corrosion (can be customized and upgraded), explosion hazards, and places with serious pollution; Multinational mining areas can customize dust and vibration prevention solutions, while coastal foreign-related parks can customize salt spray prevention solutions. Each product undergoes strict type testing, factory inspection, and international standard certification, accompanied by complete international and domestic testing reports, certification documents, and multilingual manuals; Support customized manual/electric operation modes, intelligent monitoring functions, and special protection solutions, which can be used with international standard matching handcarts. Accessories can be conveniently supplied worldwide.
Let’s Get Started
Providing you with the most trusted energy solutions in an unpredictable world.
Contact UsRequest an Insurance Quote
Specification
| Item | Unit | Data | ||||
| Rated voltage | kV | 17.5 | ||||
| Rated frequency | Hz | 50 | ||||
| Rated insulation level | 1-minute power frequency withstand voltage (effective value) | kV | 45 | |||
| Lightning impulse withstand voltage (peak value) | kV | 110 | ||||
| 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 | |||||
Download
Related Products
FAQs
What are the core differences between 17.5KV VS1 circuit breaker and 15KV, 20KV models?
The core difference lies in the standard adaptability and special voltage positioning, which are not interchangeable. The 17.5KV model is designed for special medium and high voltage scenarios involving foreign affairs, compatible with both domestic and international standards, suitable for specific voltage requirements of 17.5KV, and structurally compatible with similar international products; The 15KV model focuses on domestic medium to high voltage transition scenarios and only follows domestic standards; The 20KV model focuses on the domestic high-voltage distribution network backbone, with stronger breaking and insulation performance, and does not have international standard adaptability. The voltage, standards, and structure of the three are significantly different and cannot be used interchangeably.
Can this product be used for distribution network systems in cross-border mining areas?
Sure. This product can be customized with dust-proof, anti vibration, and anti-corrosion strengthening solutions, which can adapt to the complex climate and environmental conditions of different countries in cross-border mining areas. The rated voltage is 17.5KV and the breaking current is 45-55kA, which is suitable for the load requirements of cross-border mining areas. At the same time, it is compatible with international standards and can seamlessly connect with imported power distribution equipment in the mining area. It is responsible for the power supply control and fault protection of the main lines and mining equipment in the mining area, ensuring the continuity of cross-border operations in the mining area.
What international certification documents and multilingual support can be provided when using foreign-related projects?
This product has passed international authoritative certifications such as KEMA and CE, and can provide internationally recognized type test reports, certification documents, and factory inspection reports, fully meeting the acceptance requirements of foreign-related projects and export projects; At the same time, it can provide product manuals, operation manuals, and technical parameter manuals in multiple languages such as Chinese, English, German, and French. Specific language versions can be customized according to project requirements to adapt to international operation and maintenance management.
Can the core components of the product be interchangeable with international models of the same voltage level?
Sure. This product adopts international standard structure and size design, with core components such as arc extinguishing chamber, operating mechanism, and electrical components. It can be directly interchanged with international VS1 circuit breakers of the same voltage level without the need for additional customization, greatly improving the operation and maintenance convenience of foreign-related projects, reducing accessory procurement costs. At the same time, accessories can be conveniently supplied globally, avoiding downtime caused by shortage of accessories in foreign-related projects.
After the intelligent upgrade, can it be integrated with international mainstream distribution network automation systems?
Sure. This product reserves an international standard intelligent control interface, and after installing an intelligent monitoring unit, it can seamlessly integrate with mainstream international distribution network automation systems such as Schneider and Siemens. The data transmission protocol complies with international standards, realizing remote opening and closing, fault alarm, status monitoring, and remote fault positioning functions. It can be linked with the intelligent dispatch platform of international projects to achieve intelligent and unmanned operation and maintenance, and adapt to the intelligent needs of foreign-related projects.
Related Applications
Distribution network for foreign-related medium-sized industrial enterprises: Used for high-voltage distribution network control and protection of foreign-related medium-sized industrial enterprises such as Sino foreign joint ventures and wholly foreign-owned enterprises, such as foreign-related machinery manufacturing, electronic processing, and medium-sized chemical enterprises. Due to product compatibility with both domestic and international standards, it can directly adapt to imported distribution equipment of enterprises, responsible for the control and fault protection of high-voltage incoming lines and main distribution of enterprises, meeting international project acceptance requirements, ensuring the continuity of international production of enterprises, and supporting multilingual operation and maintenance, facilitating the management of international operation and maintenance teams.
Cross border mining area distribution network system: Suitable for high-voltage distribution networks in cross-border cooperative mining areas and international mining areas, such as overseas mining areas of Chinese enterprises and cross-border joint mining areas. The electrical parameters and structural dimensions of the products are compatible with international standards, and can achieve seamless integration of domestic and foreign distribution equipment in the mining area. After dust-proof and anti vibration strengthening design, it can adapt to the harsh environment of the mining area, be responsible for the power supply control and fault protection of the main lines and mining equipment in the mining area, and ensure the safety and stability of cross-border operations in the mining area.
International standard medium and high voltage distribution network projects: international standard medium and high voltage distribution network projects for China’s export, such as the regional distribution network and industrial park distribution network of countries along the the Belt and Road, whose products meet international standards and pass international authoritative certification, can directly adapt to project needs without additional reconstruction, be responsible for the control and protection of distribution network trunk lines and substation outgoing lines, ensure the power supply reliability of export projects, and provide complete international after-sales and accessory supply services.
Special equipment supporting distribution network: Suitable for the supporting distribution network of special equipment manufacturing and special testing bases, such as the high-voltage distribution network of large special machinery and national defense supporting equipment, with a rated voltage of 17.5KV and a breaking current of 45-55kA, suitable for the special load requirements of special equipment, with excellent resistance to electromagnetic interference and stable operation performance. It can control the power supply interruption and fault protection of special equipment, avoid equipment damage or test interruption caused by faults, and ensure the normal operation and test safety of special equipment.
