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HXGN Series Metal-Enclosed Ring Main Unit Switchgear


The HXGN-type 10 kV modular SF6 ring-main unit is a state-of-the-art, next-generation metal-enclosed switchgear that uses SF6 circuit breakers as the main switching devices. The entire cabinet features air insulation, a compact and simple structure, flexible operation, and easy installation. It is equipped with multiple interlocks and can be integrated with electric actuators, potential transformers (PTs), current transformers (CTs), UPS systems, and other components for use in distribution network automation systems. Coupled with modern sensing technologies, advanced protection relays, superior technical performance, and a lightweight, flexible assembly solution, this equipment fully meets the ever-evolving demands of the market.

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Case Description

Structural Features

The switchgear for the HXGN-type SF6 ring main unit can be equipped with either domestically produced FLN36 load switches or original ABB SFG load switches; alternatively, advanced imported permanent-magnet-operated vacuum circuit breakers or domestically manufactured VB-series vacuum circuit breakers can be installed according to customer requirements. Operation modes include manual and electric actuation. The cabinet is constructed from imported aluminum-zinc coated steel sheets and fabricated into a modular structure using CNC machining, featuring reliable mechanical interlocks and functions to prevent misoperation.

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