GIS RMU Outdoor ring cabinet

Our company can produce outdoor ring main units, with a voltage class range of 0-40.5 kV.

This product is an inflatable outdoor ring main unit with international professional standards, which is developed and produced by our company using internationally advanced professional technology.

The outer shell of the outdoor ring main unit is designed according to the outdoor structure.

The box body material can be selected as stainless steel plate, SMC or GRC according to the customer's requirements, and the surface is treated with plastic spraying, which has sufficient mechanical strength.

There are no fasteners available for disassembly on the surface of the box body, and it has good anti-theft performance.

The top cover has a double-layer structure with an air interlayer and is equipped with a ventilation opening. It has natural convection ventilation, and the heat insulation and heat dissipation performance are good.

It is equipped with a rainproof door lock, and there is a limit hook when the box door is opened to facilitate the fixing of the door.

The box body is provided with a sealed bottom plate at the cable inlet and outlet, preventing small animals and moisture from entering the box body.

The appearance and color of the box body can be customized according to the user's needs. It has a beautifl appearance and is coordinated with the surrounding environment.

The outdoor ring main unit adopts the EWR series SF6 fully sealed and fully insulated ring main switchgear, or the HXGN series air-insulated switchgear can be adopted.

When the EWR series switchgear is used as a component, it has the advantages of modularization, expandability, full insulation, full sealing,safety, reliability, and maintenance-free.

When the HXGN series air-insulated switchgear is used, compared with the EWR series products, it has the same characteristics of strong safety, adaptability, and expandability. The difference is that it is not a fully insulated and fully sealed product, but it has the advantage of more convenient equipment maintenance.

It is widely used in industrial parks, residential areas, streets, airports, various buildings,bustling commercial centers and other places.

Product characteristics

High safety:

All live parts are enclosed in the SF6 gas tank, achieving full sealing and full insulation.

It is equipped with a mechanical interlock that meets the "five prevention" requirements, eliminating the occurrence of misoperation.

The incoming and outgoing cables adopt a fully insulated, fully sealed and touchable connection method,ensuring personal safety to the greatest extent.

The box body is equipped with a gas pressure monitoring device to achieve real-time monitoring of the gas pressure during operation. There is an explosion-proof and pressure relief device at the lower rear o the gas tank, and it has passed the internal combustion arc test by an authoritative institution.

Flexible solution:

The incoming and outgoing line methods are flexible, and left-side, right-side and bottom incoming (outgoing) lines can be realized.

The combination method is flexible.Any combination can be achieved between all units, with unlimited expansion. The built-in busbar expansion method is adopted,fully meeting the requirements of usability, economy and aesthetics. The design scheme is flexible and can meet the on-site requirements of users.

Compact and reasonable structure:

The dimensions of all unit modules are the same (except for the metering module),and the compact dimensions do not affect the convenience of construction at the same time.

Economy:

Maintenance-free; it occupies a small area, with high cost performance;and the service life exceeds 30 years.

Widely applicable:

The stainless steel plate of the gas tank part is fully automatically sealed and welded by a robot using TIG welding, and the protection level reaches IP67. It can be installed in wet, dusty, salty, mining areas and any places with air pollution without taking special preventive measures.

Intelligent:

It can be provided with supporting electric operation devices and distribution automation terminal equipment to realize intelligent switchgear with the functions of "remote sensing,remote control, remote signaling and remote adjustment", meeting all the requirements of the smart grid for this type of equipment.

Product overview

Normal service condition

GB 1984-2003 High voltage AC circuit breaker

GB 1985-2005 High voltage AC isolation switch and ground switch

GB 3804-2004 3.6kV~40.5kV high voltage AC load switch

IEC60265 High-voltage switches

GB 16926-2009 AC high voltage load switch fuse combination

IEC420 High-voltage alternatingcurrent switch-fusecombinations

GB 3906-2006 3.6kV~40.5kV AC metal enclosed switchgear and control equipment

IEC62271 High-voltage switchgear and controlgear

GB/T11022-2011 Common technical requirements for high voltage switchgear and control equipment standards

IEC60694 Common specifications for high-voltageswitchgear and controlgear standards

GB/T11023 High pressure switchgear -sulfur hexafluoride gas seal test method

GB 4208-2008 Enclosure protection class

IEC60529 Degrees of protection provided by enclosures(IP Code)

DL/T404 3.6kV~40.5kV AC metal enclosed switchgear and control equipment

DL/T 728-2000 Technical Guide for ordering gas insulated metal enclosed switchgear

Performance parameter