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DMS Digital Multifunction System - Legacy
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Manufacturing for this product has been discontinued. As an alternative, please refer to 350, F60, or F650 relays.

The DMS Feeder Management System is a microprocessor based multifunction protection, control, and measurement unit part of GE's DDS Product Family. The DMS uses a set of algorithms to create a general purpose protection and control unit for electrical power systems.


  • HV lines
  • HV Busbar coupler and metering
  • Power transformer, HV or LV
  • MV lines and capacitor banks
  • MV Busbar coupler and metering

Protection and Control
  • Phase and ground TOC
  • Phase and ground Instantaneous O/C
  • Directional phase and ground O/C units
  • Negative sequence O/C
  • Three-phase under and overvoltage
  • Ground overvoltage
  • Under/overfrequency
  • 14 configurable op commands and interlocks
  • 4 programmable combinational circuits

Monitoring and Metering
  • Up to 7 switching equipment monitor
  • Alarm monitoring
  • Breaker health
  • Trip & closing circuits supervision
  • Event recorder
  • Oscillography recorder

User Interface
  • Separate local MMIs for P & C
  • RS232 port, faceplate accessible for local communication