Product Overview

The KYN550-12 is a revolutionary high-voltage switchgear designed for modern power systems where space is a premium. While maintaining the full functionality and safety of the standard KYN28A-12, the KYN550 features an ultra-slim 550mm width.

This "Armored Removable" metal-enclosed unit is engineered for 12kV three-phase AC 50/60Hz systems. It is the preferred choice for high-density power distribution environments, such as internet data centers (IDC), commercial skyscrapers, and compact urban substations, allowing for more feeder circuits in a significantly smaller footprint.

Key Engineering Advantages

• Ultra-Slim Footprint: At only 550mm wide, it reduces the overall floor space requirement by up to 30-40% compared to traditional switchgear, drastically lowering civil engineering costs.
• Full Armored Protection: The enclosure is constructed from imported aluminum-zinc coated steel plates, processed by CNC technology to ensure high mechanical strength and superior anti-corrosion properties.
• Advanced VCB Integration: Specifically designed to work with high-performance, narrow-body Vacuum Circuit Breakers (VCB). The withdrawable truck design ensures easy maintenance and rapid replacement.
• Five-Proof Safety Interlock: Equipped with a mandatory mechanical interlock system to prevent accidental entry into live compartments, ensuring maximum safety for operating personnel.
• Intelligent Heat Dissipation: Despite its compact size, the KYN550 utilizes a specialized airflow channel design to manage temperature rise effectively during high-load operations.

Technical Specifications

Primary Application Environments

1. Internet Data Centers (IDCs): Perfect for high-density server environments requiring reliable 10kV/12kV distribution in limited room space.
2. Urban Substations: Ideal for upgrading older, crowded city-center stations where expanding the building footprint is impossible.
3. High-Rise Commercial Buildings: Reduces the space occupied by electrical rooms, freeing up more leasable commercial area.
4. Modular Power Stations: Fits perfectly into prefabricated containerized power solutions.

Why the KYN550 is the Superior Choice?

• Maintenance Efficiency: The central-mounted circuit breaker truck design allows for quick inspection. The secondary plug-in system is optimized for high-cycle reliability.
• Structural Integrity: Separate compartments for the Busbar, Circuit Breaker, Cable, and Low-Voltage Control ensure that a fault in one section does not compromise the entire unit.
• Custom Configurations: We offer bespoke internal layouts, including integrated smart monitoring for temperature and partial discharge (PD) sensing.
• Factory Certified: Every unit undergoes rigorous dielectric tests, mechanical operation tests, and auxiliary circuit insulation tests before dispatch.

FAQ (Frequently Asked Questions)

Q: Does the narrow 550mm width compromise the insulation distance?

A: No. The KYN550 utilizes advanced insulation materials and optimized electric field distribution analysis to ensure that all 12kV clearance distances meet or exceed IEC standards.

Q: Can this unit be integrated into existing KYN28 lineups?

A: While the width is different, the electrical logic and busbar heights can often be transitioned to match existing lineups with a specialized transition cabinet.

Q: What type of circuit breaker is used?

A: We typically equip the KYN550 with specialized narrow-frame VCBs like the VS1 or VD4 (Compact version) depending on the customer's breaking capacity requirements.

KYN550-12 Indoor armored removable AC metal closed switchgear

KYN550-12 household armored removable AC metal closed switchgear (hereinafter referred to as KYN550-12 switchgear) is a complete set of distribution equipment for 12kV three-phase AC 50Hz single bus and single bus segmented system with the smallest size.
KYN550-12 is to prevent loading of push-pull circuit breaker handcart, prevent false or circuit breaker, to prevent the earthing switch is in the closed position close circuit breaker, avoid straying into charged across the room, to prevent the mistake when charged us grounding switch "five prevention" interlock function, equipped with indoor solid sealing medium pressure vacuum circuit breaker handcart, is a kind of high performance power distribution equipment.
The size design of KYN550-12 allows customers to save a large amount of distribution space, which is mainly used in commercial and industrial buildings, real estate, data centers and other industrial power grid transformation sites where miniaturization is required.

Standard

The switch cabinet meets IEC62271-200, GB/T3906, DL/T404 and other standard requirements.
KYN550-12 switchgear enclosure protection level is IP4X, when the breaker room door is opened and the handcart is removed,protection level is IP2X.

Specification

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