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Armored Removable Switchgear

In the domain of reliable electrical power distribution and control, the demand for robust, safe, and easily maintainable solutions is paramount. Metal Enclosed Switchgear systems have long been the standard for protecting personnel and equipment. Among the most trusted designs in this category is the KYN28 Switchgear, renowned for its advanced interlocking mechanisms and modular construction. Our Armored Removable Switchgear builds upon this legacy of excellence, offering a superior level of protection, operational flexibility, and serviceability for medium-voltage applications in utilities, industrial plants, data centers, and commercial complexes. The core principle is simple: house all critical components—circuit breakers, busbars, current transformers, and protection relays—within a secure, compartmentalized metal enclosure, allowing for the safe and swift removal of functional units without de-energizing the entire busbar system.


The design philosophy of our Armored Removable Switchgear prioritizes safety, durability, and operational efficiency. Each cubicle is constructed from high-grade, galvanized steel panels, providing exceptional mechanical strength and corrosion resistance. The "removable" or "withdrawable" element is a key feature; the primary circuit components, typically the vacuum circuit breaker, are mounted on a dedicated truck that can be smoothly racked between distinct, isolated positions: "Connected," "Test," and "Disconnected." This ensures complete electrical isolation for maintenance or inspection while keeping the upstream and downstream busbars live, maximizing system uptime. Advanced safety interlocks prevent incorrect operation, and the fully enclosed, armored design contains any internal arc faults, directing explosive gases and plasma safely away from personnel through dedicated pressure relief channels.

Key Features & Configurations

Technical Specifications (Typical)

Parameter Specification
Rated Voltage Up to 24kV / 36kV
Rated Frequency 50Hz / 60Hz
Rated Normal Current 630A, 1250A, 2000A, 2500A, 3150A
Rated Short-Time Withstand Current (Icw) 25kA, 31.5kA, 40kA (for 3s)
Rated Short-Circuit Breaking Current (Isc) 25kA, 31.5kA, 40kA
Insulation Level Power Frequency: 65kV / 70kV (1 min)
Lightning Impulse: 125kV / 145kV
Busbar Material Electro-tinned copper or aluminum alloy
Standards Compliance IEC 62271-200, IEEE C37.20.2, ANSI Standards

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