Ring Main Unit (RMU)

Specifications:

  • Extendable Ring Main Unit – Safe Ring.
  • Compact Switchgear – Safe Plus.
  • System Voltages from 12 to 24kV.
  • Switch, switch-Fuse & Circuit Breaker (VCB) options.
  • Internal Arc Classification IAC AFLR up to 25KA/1s
  • SF6 Gas-Insulated for excellent performance.
  • Fully sealed for lifetime.
  • Advance and Flexible, Canopy Option for Outdoor service.
  • High Reliability and Safety for Secondary distribution.
  • Designed and tested according to IEC-62271.

Description

A Ring Main Unit (RMU) is a compact switchgear assembly used in electrical distribution networks. It typically consists of circuit breakers, switches, and protection devices, arranged in a ring configuration to enhance reliability and flexibility. RMUs are commonly used in medium-voltage applications, allowing for efficient power distribution and facilitating maintenance without disrupting supply. Their design helps to minimize the impact of faults and ensures a continuous power supply to connected loads.

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