Product OverviewThe ZW7-40.5 series outdoor high-voltage vacuum circuit breaker is an outdoor high-voltage switchgear with a three-phase AC 50Hz and a rated voltage of 40.5kV.
•We develop
design and technical documentation
•We manufacture
electrical equipment of any complexity
•We deliver
equipment fully factory-ready
•We install
and connect equipment at the destination
•We service
equipment during and after the warranty period
ZW7-40.5 Outdoor High Voltage Intelligent Vacuum Circuit Breaker
Product Overview
The ZW7-40.5 series outdoor high-voltage vacuum circuit breaker is an outdoor high-voltage switchgear with a three-phase AC 50Hz and a rated voltage of 40.5kV. Equipped with a spring operating mechanism or electromagnetic operating mechanism, it can remotely control electric opening and closing, as well as manually store energy on site for manual opening and closing. The design performance meets the requirements of the national standard GB1984 AC High Voltage Circuit Breakers and the requirements of the International Electrotechnical Commission standard IEC62271:100 High Voltage AC Circuit Breakers. The ZW7-40.5 vacuum circuit breaker is mainly used for the control and protection of outdoor 35kV transmission and transformation systems, as well as for the normal operation and short circuit protection of urban and rural distribution networks and industrial and mining enterprises. The overall structure of the product is a porcelain bottle pillar type; The upper porcelain bottle is equipped with a vacuum arc extinguishing chamber, and the lower porcelain bottle is a pillar porcelain bottle. Suitable for places with frequent operations. It has the characteristics of good sealing, aging resistance, high pressure resistance, non combustion, no explosion, long service life, convenient installation and maintenance, etc.
Technical Parameter
| Name | Unit | Data | ||
| Rated Voltage | kV | 40.5 | ||
| Rated Insulation Level | 1Min Power Frequency withstand Voltage | Dry | 95 | |
| Wet | 80 | |||
| Lightning Impulse withstand Voltage(Peak) | 185 | |||
| Rated Current | A | 630; 1250; 1600 ; 2000 | ||
| Rated Short-circuit Breaking Current | KA | 20; 25;31.5; 40 | ||
| Rated Operating Sequence | O-0.3s-C0-180s-CO | |||
| Rated Short-circuit Opening Times | Times | 20 | ||
| Rated Short-circuit Closing Current(Peak) | kA | 50;63;80 | ||
| Rated Peak withstand Current | 20;25;31.5 | |||
| Rated Short Time withstand Current | kA | 31.5 | ||
| Rated Short-circuit Duration | s | 4 | ||
| Average Closing Speed | m/s | 0.7±0.2 | ||
| Average Opening Speed | 1.5±0.2 | |||
| Closing Time | ≤150 | |||
| Opening Time | ≤60 | |||
| Mechanical Life | Times | 10000 | ||
| Rated Operating Voltage and Auxiliary Circuit Rated Voltage | V | AC/DC110/220 | ||
| DC Current Resistance of Each Phase (Without transformer) | μΩ | ≤100 | ||
| Weight | KG | 1100 | ||
|
|
|
|
|
Other models of switches
Other Types of Switches Related Electrical Equipment
Foreign Clients Visit Our Factory We warmly welcome international clients to our facility. During their visit, they have the opportunity to tour our production workshops and witness firsthand the manufacturing and testing processes of transformers and switchgear equipment. By observing our modern production capabilities, strict quality control, and professional technologies, clients gain a deeper understanding of our expertise and reliability. These visits not only strengthen trust but also lay a solid foundation for long-term cooperation and mutual development. Our Participation in Exhibitions We actively participate in leading industry exhibitions, showcasing our high-quality electrical solutions, innovative technologies, and reliable equipment. At our company booths, visitors can explore new products in detail, receive professional consultations, and discuss potential collaboration opportunities. Our experts are always ready to share their experience and demonstrate the advantages of our solutions. About Us Chenyuan Electric is a rapidly growing company with over 15 years of experience in the production and service of electrical power equipment. We are your reliable partner in the field of electrical installation equipment! In 2019, we established a strategic partnership with Schneider Electric. Gradually expanding our production capacity, we provide comprehensive support for business development. Our factory includes multiple automated production workshops and fully equipped warehouse facilities. The modern European equipment installed in our workshops allows us to manufacture products that meet EU standards. We hold CE, ISO, and EAC certifications. Our company is an official Schneider Electric partner, authorized to sell original equipment and produce Schneider-certified switchgear cabinets. We invite you to visit our factory to discuss cooperation and explore potential partnership opportunities. In the capital of Uzbekistan, Tashkent, we operate an official representative office (a Chinese company with 100% foreign capital). Our team includes qualified engineers ready to provide prompt consultation and offer optimal one-stop solutions. Thanks to years of development, we have established a professional overseas service team, enabling us to respond quickly to customer requests. We continuously improve our cooperation approach, offering consultation during preliminary negotiations, production monitoring, after-sales service, and customized solutions. Our core principle is: quality first, reputation foremost. We sincerely look forward to long-term and mutually beneficial cooperation! Industry Solutions We are a key supplier for major state projects, such as the State Power Grid Corporation, the State Railway Administration, and the South-to-North Water Diversion Project. Our products are widely used in power systems, state projects, mining, metallurgy, real estate, and renewable energy sectors. Additionally, our products are exported to countries including Russia, Kazakhstan, Tajikistan, Uzbekistan, and others. Certifications All transformers have passed CE, IEC, GOST, and other certifications.
