YGH Eco-friendly Cabinet

YGH-12 environmental protection gas insulated ring main unit series is a complete set of power distribution devices for 12kV, three-phase AC 50Hz, single busbar and single busbar segmented system.The product has the characteristics of simple structure, flexible operation, reliable interlocking, convenient installation, etc. It can provide satisfactory technical solutions for various application occasions and different users.The adoption of sensing technology and information technology, coupled with technical performance and simple and flexible configuration schemes, can meet the ever-changing needs of the market and are suitable for the requirements of grid intelligence.

The YGH12 environmentally friendly gas-insulated ring main unit (RMU) series is suitable for industrial and civil cable ring networks and distribution network terminal projects. It is designed for receiving and distributing electrical energy. It is particularly well-suited for use in urban residential areas, small-scale substations, open/close stations, cable branching boxes, containerized substations, industrial and mining enterprises, shopping malls, airports, subways, wind power generation, sports stadiums, railways, tunnels, and other locations.

The YGH-12 series environmentally friendly gas-insulated ring main unit complies with relevant national standards and industry standards in the power sector. Its switches and main electrical components are integrated into modular units, and the interphase conductive components are enclosed in solid insulation. External wiring is done using shielded cable connectors, while the functional unit connections utilize shielded insulated busbars. These design features significantly enhance safety during operation.

The operating mechanism of the YGH-12 series employs a spring mechanism, providing a mechanical lifespan of over 10,000 operations. The operational data and equipment status can be remotely monitored, allowing for unmanned operation.

The YGH-12 series serves as a distribution device with certain performance capabilities.

Type designat

Features

●Environmental protection

The YGH-12 series environmentally friendly gas-insulated ring main unit is manufactured using non-toxic andharmless materials. It utilizes N2 (nitrogen) or dry air as the insulating medium, reducing greenhouse gas emissionsand achieving environmental objectives.During its usage, the YGH-12 series environmentally friendly gas-insulatedring main unit does not emit any toxic or harmful substances, ensuring its environmental friendliness. Additionally, theunit is designed to be recyclable and reusable, further enhancing its eco-friendliness.

●Wide range of application

The non-use of any toxic or harmful gases ensures the safety of the operating environment, whether it is in basements, tunnels, ships, or various indoor and outdoor environments. The interior of the high-pressure chamber can be filled with dry air or nitrogen, which is suitable for harsh conditions such as: high altitude, strong wind and sand, low temperature, severe cold, high environmental protection requirements, frequent operation sites, safe explosion-proof sites, high salt fog, and safe use under condensation conditions . Fully insulated and fully enclosed, it is suitable for the equipment to continue to operate after taking some cleaning and drying measures after a short period of water inflow.

●Maintenance-free

Apart from the operating mechanism, the YGH-12 series environmentally friendly gas-insulatedring main unit is in a fully sealed state. The high-voltage switch part is completely sealed,eliminating the need for cleaning and maintenance. This reduces operational and maintenancecosts. Switchgear has a high level of automation, and its online monitoring capabilities provide real-timenotifications of equipment operating conditions to users. This enhances the automation of thedistribution network, reduces manual operation costs, and lowers production costs for powercompanies.

●High security

The switchgear system features a comprehensive interlocking system and clearly visible three-phase isolationdistances to prevent accidents caused by misoperations. By eliminating the use of SF6 gas and strengthening theinterphase isolation structure, risks of expansion or explosion accidents due to interphase or multiple circuit shortcircuits are minimized. The switchgear incorporates a vacuum arc-extinguishing chamber with explosion-proof andenvironmentally friendly gas insulation, enhancing the protective performance of the switch. Additionally, theswitchgear utilizes sealed pole-pair designs for further protection.

●Easy to operate

The isolation switch and grounding switch are equipped with a single operating handle, eliminating the need foridentification and concerns about misoperations. When the circuit breaker is operation, the operating handles ofthe isolation switch and grounding switch are unable to be operated, simplifying the operation process andeliminating the need for complex technical training. This design ensures that the operation is extremelystraightforward and minimizes the chances of operational errors.

●The sealed pole-pair is formed using the epoxy resin APG (Automatic Pressure Gelation) process, providing excellent electrical and mechanical performance. It is a critical component and an essential part of the switch, serving both as an insulation element and a load-bearing component. It meets technical requirements for heat resistance, cold resistance, crack resistance, high mechanical strength, and good insulation strength.

●The switchgear features a single cabinet structure and utilizes universal insulated busbars and cableconnectors produced by professional cable accessory manufacturers. This allows for on-site assembly of theswitchgear and provides the flexibility to expand as needed, eliminating the inconvenience of transporting andinstalling multiple grouped cabinets. Additionally, if required, combination cabinets can also be providedaccording to specific requirements.

● Single cabinet structure, using general insulated busbars and cable connectors produced by professional cable accessory manufacturers. The switchgear can be combined on site, and can be expanded at will, to avoid the inconvenience of transportation and installation caused by multiple groups of combined cabinets. Of course, combined cabinets can also be provided upon request.

●Clearly visible real isolating break

●The whole series of products are designed in a unified manner, providing various cabinet types (circuit breaker, load switch, PT, busbar, busbar connection, etc.) required by users, and the shape and geometric dimensions are the same.

●The switch cabinet has intelligent interfaces and sensor installation positions, which can meet the requirements of the smart grid after the configuration of intelligent equipment.

●The main busbar adopts standard silicon rubber dry busbar.

● The disconnector adopts three-working position disconnector, which is installed on the busbar side.

●Replace SF6 load switch ring main unit