Air Ring Main Unit (ARMU)

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Our Air Ring Main Unit for secondary distribution is a factory-built, metal-encapsulated switchgear; suitable for either indoor or outdoor installation.
They integrate from 1 to 4 load-break switches for cables or transformer, an earth-fault indicator and an arc-extinguishing device.
The ARMU also has the option for installing Metering devices.

Product Highlights
Main Features:

  •  High operating reliability.
  •  Simple maintenance & inspection.
  •  No isolating partitions.
  •  High dynamic & thermal strength.
  •  Tested by international laboratories
  •  Encapsulated extinguishing device.
  •  Current interruption without visisble arc.
  •  High number of operation, simple mechanism.
  •  Easy cable connection.
  •  Possible to be connected with any SCADA system.

     

Design Standards:

  • The Air Ring Main Units are designed, manufactured and tested according to the following IEC & VDE standards
  • IEC publication 60271-200.
  • IEC publication 60694
  • IEC publication 60271-102
  • IEC publication 420
  • IEC publication 265  
  • IEC publication 129
  • DIN VDE 0670    

Applications:

  • The Air Ring Main Unit is suitable for use in:
  • Transmission & Distribution
  • Buildings
  • Industry
  • Infrastructure  

 

 

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