Ring Main Unit RMU MV Switchgear Metal Enclosed Cabinet

11KV 24KV 630A 1000A 1250A SF6 Gas Insulated Switchgear GIS Panel / Ring Main Unit RMU Cabinet Description The SHRM6 series is completely insulated SF6 Ring Main Unit, This product is in conformitywith the standards the IEC62271-200 & IEC62271-100 and the design of a high safety combined switch cabinets.One of the main components of circuitbreaker and load break switch,high technical level, superb technology, stable performance, safeand reliable operation. Safe Ring and Safe Plus are respectively applied in SF6 insulated ring main and compactswitchgear in high voltage distribution networks. Safering can be supplied as a 2,3 or 4-way standard configurations with additional equipment accordingto customer specification. There are combinations of standard configurations such as CF, CV, DV, DF, CCF, CCC,CFF, CVV, CCCC etc. SafeRing and Safe Plus offers a sealed stainlesssteel tank which contains all the live components and switching functions. SHRM6 series SF6 Ring Main Unit is widely used in industrial and civil ring network distribution system and power supply terminal,especially suitable for small secondary distribution substation, urban residential district, and other places SHRM6 use SF6 – gas (Sulphur hexafluoride) as insulation and quenching medium.The SF6 is contained in a welded stainless steel tank, which is sealed for life.Thepressure system is defined as a sealed for life system with an operatinglife time exceeding 30 years. The leakage rate is less than 0.1% per year. Electrical and mechanical bushings penetrating the tank are clamped and sealed to the tank by high quality O-rings. All SF6-tanks have to pass a leakage test before gas fill-ing.Leakage test and gas filling are done inside a vacuumchamber. The first step in the leakage test is to evacuate all air inside both SF6-tank and vacuum chambersimultaneously. The SF6-tankhas a degree of protection of IP67 and can beimmersed into water and still maintainable functionsin a satisfactory way. Working environment a)Air temperature: ±40 ; Daily average ≤25°C ℃ b)Altitude above sea level: Maximum installation altitude: 4000m c)Wind: less than 35m/s; d)Earthquake intensity: no more than 8 degrees.