Product Overview
The ring network cabinet GTXGN-12 solid insulation ring main unit, a professional 11 kv ring main unit and high-performance rmu switchgear serving as reliable three phase switchgear, is a fully insulated, sealed, and maintenance-free vacuum switchgear. All high-voltage live parts are cast with epoxy resin materials, ensuring excellent insulation performance. The functional units are connected with fully insulated solid busbars, making the entire ring network cabinet unaffected by the external environment, ensuring operational reliability and operator safety.
With its simple structure, flexible operation, and easy installation, this 11 kv ring main unit is ideal for 50Hz, 12kV power systems. As a compact and practical rmu switchgear and stable three phase switchgear, it is widely used in urban areas, small substations, switching stations, industrial sites, hospitals, airports, and more. The full insulation, sealing, and shielding make it perfect for harsh environments, including high altitude, high temperature, heavy humidity, and severe pollution.
Product Categories
According to the switch type, it is divided into load switch with grounding assembly (C module), load switch without grounding assembly (CB module, circuit breaker with grounding assembly (V module), circuit breaker without grounding assembly (v8 module), circuit breaker contact switch /VZ module). load switch + fuse combination switch assembly (F module), and isolation switch assembly (G module).
Model Meaning
Working Conditions
Ambient temperature:-45℃~+45℃;
Humidity: maximum average relative humidity, daily average ≤ 95%, monthly average ≤ 90%;
Altitude:s 4000 m;
Seismic capacity:8 degrees;
Protection level: P67 for live parts sealing, lP67 for fuse cartridges, IP3X for switchgear enclosures;
Features
The GTXGN-12 solid insulation ring main unit is a high-performance, fully insulated and totally sealed maintenance-free vacuum switchgear designed for 12kV, 50Hz three-phase AC power systems. All high-voltage live components are integrally cast with high-quality epoxy resin, delivering superior insulation strength and stable electrical performance. Functional units are connected via fully insulated solid busbars, completely isolating internal live parts from external ambient interference and effectively guaranteeing long-term operational reliability and personnel safety.
Adopting full insulation, full sealing and full shielding design, this solid-insulated RMU is immune to dust, moisture, high temperature and pollution, adapting perfectly to various harsh operating conditions. It features a simplified overall structure, flexible mechanical operation and convenient on-site installation procedures. Different from traditional air-insulated and gas-insulated switchgear, the maintenance-free design eliminates routine maintenance work, greatly reducing later-stage operation costs and equipment downtime. Its compact layout saves installation space while maintaining stable and reliable power switching and protection performance.
Application Areas
Low temperature and cold areas: There is no SF6 gas application, and there is no need to consider problems about low temperature operation of Sf6 gas. It can operate normally at -45°C
Plateau areas: There is no need to consider the impact of plateau atmospheric pressure on insulation performance.
Strong wind and sand areas: The solid insulation ring main unit has a safely protection level of iP67, and the control circuit room adopt special treatment to ensure long-term operation in strong wind and sand areas.
Coastal wet pool areas: Epoxy resin sealing, anti-moisture, and anti-sat spray corrosion, ensures long-term use in coastal areas.
Areas with high environmental protection requirements: The impact of SF6 gas on global warming has attracted great attention. The solid ring main unit eliminates SF6 gas and does not cause any pollution or harm to the environment and human body
in smart grid: Since the main switch and isolation switch can be electrically operated,the intelligent controller developed by our company can be selected to remotely control, telemeter and telecommunicate the switch equipment and substation on site, which can be used for both decentralized control and centralized control.
Selection Guide
The GTXGN-12 solid insulation ring main unit is specially designed for 12kV three-phase AC power distribution systems and serves as an ideal upgrade solution for 11kV-level ring network projects. Customers can select this model according to application scenarios and environmental conditions.
Prioritize the GTXGN-12 solid insulation RMU for projects requiring zero maintenance, high safety and strong environmental adaptability. It is the optimal choice for urban power grid reconstruction and new construction, compact switching stations and small substations. For harsh working environments including high altitude, high temperature, heavy humidity and severe industrial pollution, this fully sealed solid-insulated model is far more reliable than conventional switchgear with exposed live parts.
It is widely applicable for power supply and distribution in industrial parks, hospitals, airports and public facilities. Choose this equipment if your project demands compact structure, flexible operation, long service life and free of routine maintenance, perfectly matching modern intelligent and unmanned power distribution system requirements.
CTA
Searching for maintenance-free, high-safety solid insulation ring main units for your 11kV/12kV power distribution projects? The GTXGN-12 series fully insulated RMU delivers stable performance, strong environmental adaptability and zero daily maintenance, solving common pain points of traditional switchgear in harsh working conditions.
Lvma Electric provides standardized and customized solid insulation ring main unit solutions to meet diverse project needs. With reliable quality and professional technical support, we support global power grid construction and renovation projects. Contact our team now to get tailored model selection and exclusive quotation.
FAQ
Q: Does this ring main unit require daily maintenance?
A: No. The GTXGN-12 is a fully maintenance-free vacuum switchgear. Its sealed and insulated structure avoids component aging and contamination, eliminating the need for routine maintenance and reducing operational costs.
Q: What harsh environments can this RMU adapt to?
A: Thanks to full insulation, sealing and shielding design, it operates stably in high-altitude, high-temperature, high-humidity and heavily polluted environments, which is superior to conventional ordinary switchgear.
Q: What are the main application scenarios of GTXGN-12?
A: It is widely used in urban power grids, small substations, switching stations, industrial sites, hospitals, airports and other public and industrial power distribution scenarios, suitable for compact and high-safety power supply projects.
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