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.

Le système convient pour :

• Single busbar systems
• Single busbar sectionalized systems

Widely applied in:

• Large-scale power plants
• Sous-stations
• Entreprises industrielles et minières

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🔹 Conformité aux normes

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

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🔹 Caractéristiques principales

✔ 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

👉 Réduction des temps d'arrêt et amélioration de l'efficacité

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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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✔ Capacité de surveillance intelligente

• Supports protection, control, and monitoring functions
• Compatible avec les systèmes d'automatisation

👉 Suitable for modern smart grid applications

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✔ Configuration électrique flexible

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

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🔹 Conception structurelle

🔸 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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🔸 Système de jeux de barres

• Barres conductrices en cuivre à haute conductivité
• Optimized insulation and layout

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🔸 Protection & Control

• Integrated relay protection system
• Supports monitoring and automation

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🔹 Applications

• Power generation plants
• Electrical substations
• Industrial facilities
• Opérations minières
• Infrastructure and utility systems

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🔹 Résumé des avantages

• 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?

Il est utilisé pour :
👉 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
• Réduction des temps d'arrêt

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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?

Oui, il prend en charge :

• 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