Ring Main Unit

Ring Main Unit (RMU) is a compact, sealed metal-enclosed switchgear widely used in Urban Power Distribution Network.

  • Complying IEC-62271-200 standard. 
  • Available in 3 way , 5 way and other combinations.
  • SF6 Insulated compact model.
  • Out door & Indoor use.
  • SCADA compatible motorised unit-on request.

Capacity


Support

Features

SAFE

  • Integrated interlocks ensuring fool-proof
    Protection.
  • comprehensive range of key- and padlocking
    Options.
  • Internal Arc tested for 21 kA for 3 sec

SMART              TECHNOLOGY

  • Remote control and monitoring capability, with open communications.
  • Variety of Fault passage indicators are available.

EXTENSIBLE

  • Compact size makes installation easy
  • Easy to extend through plug in system.
  • Spacious cable compartment for MV cable connection.

CONTINUOUS  PERFORMANCE

  • Key live parts are sealed for life in a SS, SF6-filled tank,
    making them impervious to environmental conditions.
  • Zero maintenance of sealed tank during product lifetime.

    Technical Specification

    Description Specifications Details
    Rated Voltage
    kV
    12
    Insulation Level
    kV peak
    75
    Insulation Level
    kV rms
    28
    Rated Current
    Amps
    630
    Short Time current & duration
    kA rms/ sec
    21 (3sec)
    Making capacity
    kA peak
    52.5
    Protection Degree
    RMU
    IP54
    Protection Degree
    Tank
    IP67