Air Insulated Switchgear from China for Reliable Power Infrastructure

The Huajidian Air Insulated Switchgear features a metal-armored structure and employs air insulation + vacuum arc extinguishing technology. It emits no SF₆ greenhouse gases, ensuring a green and low-carbon lifecycle. The equipment strictly adheres to IEC 62271-200 and GB 3906 standards, covering voltage levels from 6kV to 36kV, rated current from 630A to 4000A, and short-circuit breaking current from 25kA to 40kA. It is suitable for indoor substations, industrial plants, commercial complexes, and data centers.

Core Advantages

1. Safe and Reliable, Superior Performance

• Standard features include five-proof interlocking and arc protection design. The internal arc extinguishing rating reaches IAC A FLR, eliminating the risk of misoperation and arcing.
• The vacuum interrupter has a mechanical life of ≥10,000 cycles. The main circuit uses a high-conductivity copper alloy, with a circuit resistance ≤130μΩ. Temperature rise is reduced by 15K compared to traditional equipment, making it suitable for frequent operation scenarios.
• IP4X protection rating, adaptable to harsh environments such as high humidity and dust, ensuring long-term stable operation.

2. Modular Design, Flexible Adaptation

• The cabinet adopts a standard modular architecture, supporting single/dual busbars and fixed/removable configurations, allowing for flexible combination of load switches, circuit breakers, and fuse units.
• Cabinet widths are available in 500mm/650mm/800mm, allowing for reliable wall mounting, saving 30%–50% of space, and adapting to compact power distribution room layouts.
• Supports customized solutions to meet the voltage, current, and protection logic requirements of different scenarios.

3. Low-Carbon Economy, Easy Maintenance

• 100% SF₆-free, zero greenhouse effect, in line with global green and low-carbon trends, requiring no special gas maintenance or disposal.
• Air insulation design makes components easy to access and inspect, requiring no special tools, reducing maintenance costs by more than 40%.
• Low total life cycle cost, combining economic and environmental value.

4. Stringent Quality Control, Global Certification

• Implement a three-tiered quality control system: IQC→IPQC→FAT, conducting comprehensive testing from raw materials to finished products to ensure every piece of equipment meets contractual and international standards.
• Products are certified by IEC, CE, IECEx, and ATEX, providing compliant services for markets such as Saudi Arabia's SABER and Indonesia's SNI.
• Leveraging China's mature supply chain, core components are sourced from reputable manufacturers in Wenzhou, ensuring stable and reliable quality.

Typical Application Case

10kV Power Distribution Project in an Industrial Park in Southeast Asia

• Project Background: In 2024, we undertook a power distribution project for a manufacturing park in Vietnam, requiring the deployment of 24 12kV Air Insulated Switchgear units to power the factory workshop, office building, and energy storage station, demanding high reliability and low maintenance.
• Solution: Utilizing Huajidian XGN series AIS, configured with vacuum circuit breakers + microprocessor protection, the modular cabinet saves space in the distribution room and is suitable for the local high-temperature and high-humidity environment.
• Project Outcomes: The equipment passed acceptance testing on the first attempt and has been running without any faults since. Maintenance workload has been reduced by 50% compared to traditional SF₆ switchgear, and the client has expressed interest in long-term contract renewal.

FAQ

Q1: What is the core difference between Huajidian Air Insulated Switchgear and SF₆ gas-filled switchgear?

A1: The core difference lies in the insulation medium and environmental friendliness. AIS uses air as the insulation medium, producing no SF₆ greenhouse gases, making it low-carbon, environmentally friendly, easy to maintain, and lower in cost. SF₆ switchgear relies on sulfur hexafluoride insulation, requiring regular gas testing and recovery, resulting in higher maintenance costs and environmental risks.

Q2: What are the maintenance cycles and main contents of AIS?

A2: The maintenance cycle for AIS is every six months. The core contents include: ① Checking the cabinet seal and cleaning the insulation components; ② Testing the opening and closing performance of the vacuum circuit breaker; ③ Verifying the protection settings and secondary circuits; ④ Tightening the wiring terminals. No gas-related operations are required, making maintenance convenient.

Q3: What certifications and compliance support does Huajidian Air Insulated Switchgear offer?

A3: Standard certifications include IEC 62271, CE, IECEx, and ATEX; we can assist with mandatory certifications in markets such as Saudi Arabia's SABER, Indonesia's SNI, and Nigeria's SONCAP, providing complete test reports and compliance documents to ensure smooth project clearance and grid connection.