YFGZ35(Z3)-40.5 Integrated Circuit Breaker

The YFGZ35(Z3)-40.5 series integrated indoor high-voltage AC vacuum circuit breaker (hereinafter referred to as the "series vacuum circuit breaker") is independently designed and developed by our company in accordance with relevant standards such as GB1984, GB/T11022, GB311.1, DL/T593, and DL/T402. It represents the new generation of 40.5 kV indoor high-voltage AC vacuum circuit breakers featuring isolation and grounding capabilities. This product boasts comprehensive functionality and consistently reliable mechanical performance, making it well-suited for challenging environments such as high-altitude regions or coastal areas characterized by dense salt mist. It is ideally suited for a wide range of applications, including wind power generation, photovoltaic power systems, energy storage plants, and urban distribution networks. Equipped with advanced mechanical and electrical interlocking mechanisms, the circuit breaker 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.

Category:

40.5kV Circuit Breaker Series

E-mail:

root@jyyf.cn

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Product Description

Product Overview

The YFGZ35(Z3)-40.5 series integrated indoor high-voltage AC vacuum circuit breaker (hereinafter referred to as the "series vacuum circuit breaker") is independently designed and developed by our company in accordance with relevant standards such as GB1984, GB/T11022, GB311.1, DL/T593, and DL/T402. It represents the new generation of 40.5kV indoor high-voltage AC vacuum circuit breakers featuring isolation and grounding capabilities. This product boasts comprehensive functionality and consistently stable, reliable mechanical performance, making it well-suited for challenging environments such as high-altitude regions or coastal areas characterized by dense salt mist. It is ideally suited for a wide range of applications, including wind power generation, photovoltaic power systems, energy storage plants, and urban distribution networks. Equipped with advanced mechanical and electrical interlocking mechanisms, the circuit breaker ensures exceptional operational reliability and an extended service life. When paired with compatible switchgear, it delivers safe and dependable power distribution, safeguarding both operators and equipment alike.

Product Features

· The integrated design of the isolating switch, circuit breaker switch, and grounding switch results in a compact, high-voltage vacuum circuit breaker with a clear isolation gap—featuring simple and reliable "five-proof" interlocking mechanisms.
· The contact copper components are manufactured using a cold-extrusion process, ensuring high strength and low electrical resistance;
· Insulation pillars for incoming and outgoing lines can optionally be equipped with sensors featuring live-display functionality;
· The circuit breaker features a miniaturized design and can be installed directly in the high-voltage room of the packaged substation, eliminating most of the cabinet costs and thereby reducing the overall cost of the substation.

Model Description

Main Technical Specifications

Environmental operating conditions

1. Altitude ≤ 3,800 meters;
2. Ambient temperature: -50°C to +50°C,
3. Relative Humidity: The daily average 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 slopes no greater than 5°.

Note: The above outlines the standard operating conditions for GBTT11022. If your application requires special environmental conditions—such as high altitude, heavy salt spray, or extremely cold or hot environments—you can modify the technical design and customize the product accordingly based on these requirements.

Integrated Circuit Breaker Outline Diagram

YFGZ35(Z3) Integrated Indoor High-Voltage AC Vacuum Circuit Breaker
Business attire, side-left operation (altitude 0–2000 meters)