The KYN28A-12 series armored withdrawable AC metal-enclosed switchgear is a second-generation intelligent medium voltage switchgear, developed by integrating advanced international technology with modern CNC manufacturing processes.

It is designed for power distribution, control, protection, and monitoring in 3.6–12kV AC systems with a rated frequency of 50Hz.

Hệ thống này phù hợp với:

• Single busbar systems
• Single busbar sectionalized systems

Widely applied in:

• Large-scale power plants
• Trạm biến áp
• Các doanh nghiệp công nghiệp và khai khoáng

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🔹 Tuân thủ các tiêu chuẩn

• IEC 60298 – AC Metal-Enclosed Switchgear
• GB/T 3906 – Metal-Enclosed Switchgear
• DL/T 404 – High Voltage Switchgear Technical Standard

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🔹 Các tính năng chính

✔ Armored Metal-Enclosed Structure

• Fully compartmentalized design
• High safety and fault isolation capability

👉 Minimizes the impact of internal faults

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✔ Withdrawable (Draw-out) Design

• Removable circuit breaker unit
• Easy maintenance and replacement

👉 Giảm thời gian ngừng hoạt động và nâng cao hiệu quả

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✔ Advanced “Five Prevention” Interlocking System

Prevents:

• Misoperation
• Load switching errors
• Live grounding
• Energized access
• Incorrect sequence operation

👉 Ensures maximum operator safety

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✔ Internal Arc Withstand Capability

• Successfully passed internal arc tests
• Enhances operational safety in fault conditions

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✔ Khả năng giám sát thông minh

• Supports protection, control, and monitoring functions
• Tương thích với các hệ thống tự động hóa

👉 Suitable for modern smart grid applications

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✔ Cấu hình điện linh hoạt

• Supports various circuit breaker types (e.g., vacuum circuit breaker)
• Adaptable to different system designs

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🔹 Thiết kế kết cấu

🔸 Compartmentalized Design

The cabinet is divided into:

• Busbar compartment
• Circuit breaker compartment
• Cable compartment
• Relay & control compartment

➡ Ensures safety and ease of maintenance

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🔸 Withdrawable Circuit Breaker

• Draw-out type design
• Position indication (service/test/disconnected)

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🔸 Hệ thống thanh cái

• Thanh dẫn đồng có độ dẫn điện cao
• Optimized insulation and layout

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🔸 Protection & Control

• Integrated relay protection system
• Supports monitoring and automation

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🔹 Ứng dụng

• Power generation plants
• Electrical substations
• Industrial facilities
• Hoạt động khai thác
• Infrastructure and utility systems

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🔹 Tóm tắt các ưu điểm

• High safety armored structure
• Withdrawable design for easy maintenance
• Reliable “Five Prevention” interlocking system
• Internal arc resistance for enhanced safety
• Intelligent control and monitoring capability
• Suitable for medium voltage distribution systems

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❓ Câu hỏi thường gặp

1️⃣ What is KYN28A-12 switchgear used for?

Nó được dùng để:
👉 Receiving, distributing, controlling, and protecting electrical power in medium voltage systems (3.6–12kV).

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2️⃣ What is the advantage of withdrawable switchgear?

• Easy maintenance
• Fast replacement of circuit breakers
• Giảm thời gian ngừng hoạt động

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3️⃣ What does “armored” mean in switchgear?

It refers to:
👉 Metal compartmentalized structure, which improves safety by isolating faults within specific sections.

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4️⃣ Does KYN28A-12 support automation systems?

Đúng vậy, nó hỗ trợ:

• Monitoring systems
• Protection relays
• Smart grid integration

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5️⃣ Is it safe under fault conditions?

Yes. It:

• Passes internal arc tests
• Includes full mechanical interlocking system