LWXt6 Fully Insulated Compact Gas Ring Network Cabinet
Brand: Henan Mingkong
Model: LWXt6
Product Type: Fully Insulated Compact Gas-Insulated Ring Main Unit (RMU)
Rated Voltage: 12kV / 24kV
Rated Current: Up to 1250A
Core Feature: SF6 gas-insulated design, IP67 gas chamber protection rating, fully sealed and maintenance-free
Key Advantage: Compact footprint, “five-proof” interlock system, and reliable arc-quenching performance
Application: Urban distribution networks, industrial substations, and harsh environments like basements, coastal or high-altitude areas
Introduction
A: Product Overview
The LWXt6 Fully Insulated Compact Gas Ring Network Cabinet is a state-of-the-art SF6 gas-insulated switchgear designed for 12kV and 24kV distribution systems. Developed for modern urban and rural power grids, it addresses the growing demand for compact, reliable, and maintenance-free secondary substations, especially in confined spaces, basements, high-altitude and coastal environments.
Adopting fully sealed and fully insulated stainless steel construction, the cabinet encloses all live components in a hermetically sealed chamber filled with SF6 gas at 0.03–0.04MPa, achieving an IP67 protection rating. This design isolates internal parts from external environmental factors, ensuring stable operation even under short-term flooding or harsh conditions, and eliminating the need for routine maintenance throughout its service life.
Equipped with a complete five-proof interlocking system, the LWXt6 prevents human operational errors that could lead to equipment failure or safety hazards. It also features dedicated pressure relief channels to safeguard operators in extreme scenarios. The cabinet supports both fixed and expandable modular configurations, with flexible installation options including front/rear access and side expansion, to adapt to diverse project layouts.
The series meets stringent international and national standards including GB3906, GB1984, and GB/T11022, with mechanical life reaching up to 10,000 operations. Rated current ranges up to 1250A, while short-circuit breaking current options of 25kA and 31.5kA cater to different distribution network requirements. The design also supports integration with primary-secondary fusion kits for smart grid applications, and holds national patent No. 201710829544.2 for its arc-extinguishing technology.
With its compact footprint, robust safety features, and wide environmental adaptability, the LWXt6 series is an ideal choice for ring main units in residential, commercial, and industrial distribution projects.
B: Model meaning
C: Producr Features
- LWXt6-12/24 fully insulated inflatable cabinet SF6 gas is used as arc extinguishing and insulating medium.
- The switchgear is fully sealed and fully insulated; the busbars. switches and live parts are completely enclosed in a stainlesssteel housing
- S F6 gas(0.03-0.04MPa). up to the IP67 protection level. The whole switchgear is completely unaffected by externalenvironmental conditions, and the switch can be operated normally even under extreme conditions such as short-time flooding.The product is maintenance-free for life.
- The switchgear has a complete “five-proof interlocking device to completely eliminate the malfunction of personnel and equipment that may be caused by human error.
- All switchgear cabinets have a reliable and safe pressure relief channel, which guarantees the operator’s personal safety even under extreme conditions.
- The switchgear is divided into two types: fixed unit combination and expandable unit combination.
- Switchgear cabinets usually have front and rear access lines, or side outlets or side extensions can be mplemented at different installation positions.
- The switchgear can be equipped with electric, remote control and monitoring devices according to different needs of users.
- The ring network cabinet is a single-slot cabinet. The ring cage is a combination of various single-intervals.
D: Normal operating environment conditions
Note:For special operating conditions that are diferent from normal operating conditions, the user needs to the manufacturer when ordering. youare involved in a particulariy harsh environment, such as high altude, lowtemperatures, and severely contaminated locations, you must contactthe manufacturer or supplier.
E: Standards compliant
GB1984-2014″High Voltage AC Circuit Breaker”
GB1985-2014″High Voltage AC Isolation Switch and Grounding Switch”
GB3309-1989″Mechanical test of high voltage switchgear at room temperature’
GB3804-2004″3.6kV-40.5 high voltage AC load switch
“GB3906-2006″3.6kV – 40.5kV AC metal-enclosed switchgear and control equipment”
GB/T8905-1996″Guidelines for Gas Management and Inspection in Electrical Equipment for Sulfur Hexafluoride”
GB/T11022-1999″Common technical requirements for high-voltage switchgear and control equipment ‘
GB/T11023-1989″High-voltage switchgear sulphur hexafluoride gas seal test method”
GB16926-2009″AC high voltage load switch-fuse circuit combination”
F: Operating mechanism technical parameters
Note 1: Depending on the current rating of the fuse
G: Combination scheme
H: Explore More Solutions
If you are looking for other medium voltage switchgear equipment, you can check our KYN28A-12 armored removable switchgear and XGN17-40.5 fixed metal enclosed switchgear. We provide complete 12kV~40.5kV high voltage cabinets with customized solutions for power plant, substation and industrial power distribution engineering.
