40.5KV Indoor High Voltage Vacuum Circuit Breaker for switchgear

The ZN85-40.5/40.5KV Indoor High Voltage Vacuum Circuit Breaker for switchgear, designed for use in AC 50Hz systems with a rated voltage of 40.5kV, is a durable solution for switching load current, overload current, and fault current in industrial and mining facilities, power plants, and substations. Its upper and lower layout structure, reducing its overall depth, is a testament to its durability. The specially designed spring operating mechanism, tailored to suit the upper and lower layout configuration, ensures simplicity, optimal output curve, and performance that aligns with the requirements of 40.5kV vacuum circuit breakers. This circuit breaker's ability to handle frequent operation and its resilience in harsh operating conditions in various environments instill confidence in its durability.

Model:ZN85-40.5

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About us

Kesion Electric Technology Co., Ltd. is a leading company situated in Shenzhen, a vibrant city epitomizing China's reform and open-door policy. Since our establishment in 2016, we have operated from an expansive 11,000-square-meter facility, achieving an annual output value exceeding 90 million yuan. Our workforce of over 100 employees, including 30 skilled engineers and technical experts, enables us to produce more than 3,600 sets of medium-voltage switchgear per year. Throughout the years, our unwavering commitment to developing a comprehensive range of products has set us apart. Our offerings encompass 35kv gas-insulated switchgear (C-GIS and GIS) with current ratings from 630A to 3150A, in addition to circuit breakers, disconnectors, isolating mechanisms, modular controllers, enclosure sheet metal, and busbar systems. We are proud to be at the forefront of technological advancement, utilizing the latest tools and techniques to ensure the quality and reliability of our products.

Moreover, we specialize in 35kV substations, 110kV GIS, 35kV Cable Branch cabinets, 35kV transformers, and 35kV prefabricated substations. Our lineup also features fully insulated and fully enclosed permanent magnet ring main units (research and development products) and environmentally friendly gas ring main units. As a result, all our products are designed, developed, manufactured, marketed, and supported by a reputable power equipment manufacturer. Our company has established a robust management system in accordance with the GB/T standard for performance, company management, and safety production. Safety remains our top priority, and we take pride in housing a technology research and development center with exceptional technical capabilities. Embracing lean production and the fusion of informatization and industrialization, we have developed an advanced production manufacturing system. Our comprehensive range of production and testing equipment includes CNC punching machines, laser cutting machines, robotic welding, automated assembly lines, power frequency withstand voltage devices, shielding partial discharge devices, and vacuum box-type helium leak detection systems. Thanks to our dedication to quality and customer service, our products hold numerous domestic and international certifications and are renowned for their excellence and services worldwide. This has solidified our position as a key strategic partner for numerous reputable manufacturers. With a dedicated technical team and attentive marketing services, we steadfastly uphold the principles of "leading with technology, quick response, and safe electricity use." Our unwavering commitment to cutting-edge technology, competitive pricing, and sincere pre-sales and after-sales services have earned us the trust and admiration of our customers.

Overview

The ZN85-40.5/T2000-31.5 indoor high-voltage vacuum circuit breaker is designed for use in AC 50Hz systems with a rated voltage of 40.5kV. It is capable of handling load current, overload current, and fault current switching in industrial and mining facilities, power plants, and substations. This circuit breaker features an upper and lower layout structure that houses the operating mechanism, effectively reducing its overall depth. A specially designed spring operating mechanism is integrated within the circuit breaker frame, aligning well with the upper and lower layout configuration and enhancing the circuit breaker's overall structure. The mechanism boasts a simple design, offering output curves and performance that cater to the specific requirements of 40.5kV vacuum circuit breakers. It is particularly suitable for frequent operations and can withstand harsh operating conditions in various environments, ensuring long-term performance and reliability.

Service and Installation Conditions

- Ambient temperature: not higher than +40 ° C, not less than − 10 ° C (at − 30 ° C to allow storage and transportation).

- Altitude: not exceeding 1000m.

- Relative humidity: daily average of not more than 95%, saturated vapor pressure on the average of not more than 2.2 × 10-3MPa, On average not more than 1.8 × 10-3MPa.

- Earthquake intensity: not more than eight.

- No fire, explosion hazard, serious filthy, chemical corrosion, as well as places of intense vibration.

Main parameters

Structure diagram

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