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.

이 시스템은 다음에 적합합니다:

• Single busbar systems
• Single busbar sectionalized systems

Widely applied in:

• Large-scale power plants
• 변전소
• 산업 및 광업 기업

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🔹 표준 준수

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

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🔹 주요 기능

✔ 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

👉 다운타임 감소 및 효율성 향상

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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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지능형 모니터링 기능

• Supports protection, control, and monitoring functions
• 자동화 시스템과 호환

👉 Suitable for modern smart grid applications

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유연한 전기 구성

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

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🔹 구조 설계

🔸 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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🔸 버스바 시스템

• 고전도성 구리 버스바
• Optimized insulation and layout

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🔸 Protection & Control

• Integrated relay protection system
• Supports monitoring and automation

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🔹 애플리케이션

• Power generation plants
• Electrical substations
• Industrial facilities
• 채굴 작업
• Infrastructure and utility systems

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🔹 장점 요약

• 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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❓ FAQ

1️⃣ What is KYN28A-12 switchgear used for?

용도는 다음과 같습니다:
👉 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
• 다운타임 감소

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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?

예, 지원합니다:

• 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