CARM-12 Full Gas Insulated Ring Main Unit (RMU)

Product Summary

CARM-12 series gas insulated RMU is indoor box type AC metal enclosed switchgear with rated voltage of 10kv and rated frequency of 50 /60hz.The RMU adopts dry air or nitrogen as insulation medium, which has the advantages of compact structure, full insulation and maintenance free. lt can be widely used in industrial and civil loop networks and terminal power supply. lt is especially suitable for small secondary power distribution stations, switching stations, industrial and mining enterprises, airports, railways, commercial areas, high-rise buildings, expressways, subways, tunnels and other fields.

Environmental Conditions

1. Ambient Temperature: No more than +45℃，No less than -40℃.Average temperature no more than +35℃ within 24 hours.

2. Altitude: No more than 2000m.

3. Relative Humidity: the average daily value is no more than 95%, the average monthly value is no more than 90%.

4. Earthquake Intensity: No more than 8 degrees.

5. Vapor Pressure: the average daily value is no more than 2.2kPa, and the average monthly value is no more than 1.8kPa.

6. Installation locations without fire, explosion danger, serious pollution, chemical corrosion and violent vibration.

Product Features

1. Using dry air or nitrogen as insulation medium, no toxic and greenhouse gas emissions, high material recovery rate, green environmental protection.

2. Strong environmental adaptability: all components are sealed in metal shell filled with gas, and their performance is not affected by external environmental factors especially suitable for high altitude, severe cold, humidity, pollution and other harsh environment.

3. Maintenance free: insulation components are not affected by external environment and are not easy to be aged; vacuum interrupter is used to close short-circuit current with stable and reliable performance; the shell is welded with high-quality stainless-steel plate, with good sealing performance and annual gas leakage rate less than 0.05%.

4. Modular design, each unit module can be arbitrarily combined and expanded, which is convenient for scheme combination and wide application range.

5. With a large capacity and small floor area, the feeder is suitable for various demands and has a wide range of applications.

Technical Data

Typical Scheme Diagram