YFGZ35-40.5 Bridge-Type Circuit Breaker

The YFGZ35-405 series of indoor high-voltage AC vacuum circuit breakers with isolation (hereinafter referred to as the "series vacuum circuit breaker") is a next-generation 40.5 kV vacuum circuit breaker and isolator combination device independently designed and developed by our company, adhering to standards such as GB1984, GB/T11022, China’s power industry standard DL403, IEC62271-100, IEC56, and relevant regulations from other major industrialized nations. This product boasts comprehensive functionality and consistently reliable mechanical performance, making it well-suited for use in relatively harsh environments such as high-altitude regions, grasslands, and deserts. It can be widely applied in power plants, grid systems, metallurgy, petrochemical industries, urban infrastructure projects, subway facilities, and wind energy initiatives. Equipped with advanced mechanical and electrical interlocking mechanisms, the series ensures exceptional operational reliability and durability. When paired with compatible switchgear, it delivers safe and efficient power distribution, safeguarding both operators and equipment at all times.

Category:

40.5kV Circuit Breaker Series

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root@jyyf.cn

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Product Description

Product Overview

The YFGZ35-405 series isolating indoor high-voltage AC vacuum circuit breaker (hereinafter referred to as the "series vacuum circuit breaker") is a next-generation 40.5 kV vacuum circuit breaker and isolator combination device independently designed and developed by our company, adhering to standards such as GB1984, GB/T11022, China’s power industry standard DL403, IEC62271-100, IEC56, and relevant guidelines from other major industrialized nations. This product boasts comprehensive functionality and consistently stable, reliable mechanical performance, making it well-suited for challenging environments such as high-altitude regions, grasslands, and deserts. It is ideally suited for use in a wide range of applications, including power plants, grid systems, metallurgy, petrochemical facilities, urban infrastructure projects, subway networks, and wind energy initiatives. Equipped with advanced mechanical and electrical interlocking mechanisms, the series ensures exceptional operational reliability and an extended service life. When paired with compatible switchgear, it delivers safe and efficient power distribution, safeguarding both operators and equipment at all times.

Model Description

Main Technical Specifications

Environmental operating conditions

1. Altitude ≤ 1000 m;
2. Ambient temperature range: -25°C to +40°C;
3. The daily average relative humidity should not exceed 95%, and the monthly average should not surpass 90%.
4. The surrounding air is not noticeably contaminated by dust, smoke, corrosive and/or flammable gases, vapors, or salt spray;
5. Areas free from fire and explosion hazards;
6. Locations with seismic intensity not exceeding 8 degrees and slope no greater than 5°.
Note: The above outlines the standard operating conditions according to GB/T 11022. For special application environments such as high altitudes, heavy salt spray, or extremely cold or hot conditions, the technical design can be modified and customized based on these requirements.

Outline Drawing of an Isolated Vacuum Circuit Breaker

YFGZ35-40.5D/T630-25 Indoor AC High-Voltage Vacuum Circuit Breaker with Isolation (CT Optional) (Altitude: 0–2300 meters)
Switch with front-mounted, side-operated design