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KYN28A-12(Z) Electrical withdrawable AC metalclad switchgear

The switchgear adheres to standards of IEC60298,GB3906-91 “ A.C. metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV”.

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隐藏域元素占位

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Industry and commerce

Energy Storage

Photovoltaic power generation

Metal melting

State Grid

Product Overview

The KYN28A-12(Z) is a high-performance 12kV AC metal-clad switchgear designed for power distribution systems. Featuring a withdrawable structure, it complies with GB 3906 and IEC 62271-200 standards. Ideal for substations, industrial plants, commercial buildings, and renewable energy facilities, it delivers exceptional reliability, safety, and intelligent control for power distribution, protection, and management.

KYN28 metal-clad switchgear (KYN28 enclosed metalclad switchgear) is a complete power distribution device for 3.6~12kV,3-phase AC 50Hz,single-bus and single-bus sectionalized system. It is mainly used for power transmission of middle/small generators in power plants; power receiving, transmission for substations in power distribution and power system of factories, mines and enterprises, and starting of large high-voltage motor, etc.,so as to control, protect and monitor the system.

Key Specifications

Parameter	Value/Feature
Rated Voltage	12kV
Rated Current	630A / 1250A / 1600A / 2500A (Customizable)
Rated Short-Circuit Breaking Current	25kA / 31.5kA / 40kA
Protection Rating	Enclosure IP4X, Compartment IP2X
Operating Mechanism	Spring-Energy-Stored Mechanism (Manual/Electric Operation Supported)
Neutral Grounding	Ungrounded / Arc Suppression Coil Grounded / Low-Resistance Grounded
Dimensions	W800/1000mm × D1500mm × H2300mm (Customizable)

Structural Features

Robust Enclosure System
Heavy-gauge aluminum-zinc alloy steel enclosure (≥2.5mm thickness) with IP4X certified sealing, providing 40% higher corrosion resistance than galvanized steel.
Seismic Resilience:
Reinforced frame withstands 8.0 magnitude vibrations per IEC 62271-3, eliminating structural retrofit costs.
Fail-Safe Compartmentation
Independent Functional Zones: Four isolated chambers (power distribution / conductor / control / cable) with 2.5mm steel barriers, preventing cross-compartment fault propagation.
Zero-Maintenance Insulation:
Molded SMC composite barriers (15kV/mm dielectric strength) eliminate partial discharge risks.
Non-Interruptive Diagnostics:
Integrated testing ports allow live monitoring via external instruments.

Applications

Power Systems: Substation feeder control, busbar sectionalizing.

Industrial Facilities: Steel plants, chemical parks, mining operations.

Commercial Infrastructure: Data centers, hospitals, airports (primary distribution systems).

Renewable Energy: Photovoltaic power stations, wind farm step-up substations.

Key Advantages

✅ Enhanced Safety: Fully enclosed metal structure with multi-level interlocks to prevent misoperation.
✅ Extended Lifespan: Core components rated for 10,000 mechanical operations with long maintenance-free intervals.
✅ Scalable Design: Modular busbar system supports multi-cabinet configurations for complex grid demands.
✅ Eco-Friendly: Low-loss design aligns with green grid initiatives.