HXGN-24 and XGN-12 SF6 insulated gas-filled ring main units

The HXGN series gas fully insulated compact ring main unit is an SF6 gas insulated medium voltage switchgear. The product adopts a modular design, allowing arbitrary arrangement according to different design schemes, achieving a perfect combination of common enclosure units and extended units, meeting the flexible use requirements of compact switchgear in various secondary power distribution substations. The HXGN series switchgear is a fully sealed system, with all primary components enclosed within a stainless steel housing, unaffected by the environment; it features reliable operation, safety assurance, compact structure design, small footprint, maintenance-free, and long service life. The product has passed type tests at the national high-voltage electrical apparatus testing center and is widely used in small secondary distribution substations, box-type switching stations, industrial and mining enterprises, airports, railways, commercial areas, high-rise buildings, highways, subways, tunnels, and locations with harsh natural conditions, meeting the needs of intelligent electrical rooms and integrated energy management systems.

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Belonging Category

Medium-voltage switchgear

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Product Description

Product Features

Modular Design

Includes load switch unit (C), load switch + fuse combination electrical unit (F), circuit breaker unit (V), metering cabinet unit (M), busbar PT unit (PT), etc. Different modules can be freely combined to form a ring main unit.

Fully Insulated and Fully Sealed Design

The primary live parts (main busbar) and the switch body are sealed inside a gas-tight box welded from stainless steel plates. They can be connected to incoming and outgoing cables through fully insulated, fully shielded, fully sealed detachable connectors. The gas box has a protection rating of IP67.

Flexible Expansion Design

Various standard unit modules can be combined into a common box type non-expandable or expandable unit. Through dedicated fully insulated and fully shielded busbar connectors, multiple forms of combinations can be achieved to realize full modularization, maximizing the ability to meet the needs of different regions, forms, and customers.

High Safety and Reliability

The primary live parts and switch body are sealed inside a stainless steel gas box and connected externally via bushings, avoiding direct contact with live parts. The equipment has reliable pressure relief devices and pressure relief channels to ensure personal and equipment safety during faults. A complete mechanical interlock device minimizes the risk of misoperation.

New Spring Operating Mechanism

Exclusive spring operating mechanism, optimized components, simplified transmission structure, making the mechanism more stable overall and the transmission more flexible, with the capability to be expanded to intelligent control.

Advanced Welding and Sealing Technology

Fully automatic welding process ensures welding quality, complete leak detection technology, with an annual relative gas leakage rate of less than 0.01%, guaranteeing the sealing performance and electrical performance of the gas box.