Citra Wahana Sekar Buana


Protection & Control Systems


Distribution Range GRD 100

Distribution Range GRD 100 is a series of multi-function protection relays, providing a comprehensive range of protection functions for distribution power systems, or alternatively acting as back-up protection for transmission system.

There are 5 cub groups within the GRD 100 Series systems. There are 5 sub-groups within the GRD100 series.

  • GRD110: Overcurrent protection for phase and earth faults.
  • GRD130: Over-voltage and under-voltage protection
  • GRD140: Directional overcurrent relay with auto-reclose.
  • GRD150: Feeder management system, combining protection and control functions and featuring a large mimic display

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