Smart remote terminal units | INGEPAC™ DA AU

INGEPAC™ DA AU devices carry out, in a single device, all the automation, measurement and supervision requirements related to a RMU:

  • Directional phase fault detection
  • Fault isolation automatic operations and load transfer
  • Protection
  • V, I, P and Q measurement of all the positions
  • Local and remote control of switchgear
  • RTU
  • Web server



  • Comprehensive position signaling
  • Complete measurement at the point of installation in the grid: V, I, P, Q, F, cos ϕ, active, reactive energy
  • Voltage measurement using reactive sensors
  • Directional fault passage detection
  • Automatic fault clearance
  • SCADA communication and remote equipment management using software tools or web access
  • Event recording: incidents, faults, oscillography
  • Measurement values log
  • Supply quality values and logs: harmonics, dips, surges, interruptions, etc.
  • IEC 61131-1 logics
  • Communication protocols: DNP3, IEC 103, IEC 61850...



  • Supervision of compact transformer substations (RMU)
  • Centralised control and automation of medium voltage switchgear

The development of communication networks in distribution grids, within the framework of evolving Smart grids, makes it possible to possess a significant amount of information on an entire electrical grid, for the purpose of manual or automatic operation or for making decisions in terms of maintenance and grid development.

INGEPAC DA AU, coupled with voltage sensors, is an affordable solution offering complete measurement and detection of fault bypasses anywhere in the grid. The same device provides communication to the SCADA (RTU) system, remote parameterising using software tools and web access for monitoring and configuration.

Besides supervision functional features, INGEPAC DA AU offers signalling for operating devices and allows the facility to control them remotely and/or automatically.


  • Faster fault identification and location
  • Reduction in customer hour loss
  • Improvement of availability and safety
  • Faster restoration of supply and reduction of outage time

Example of fault detection and isolation in automated transformer substations:

Fault passage isolation



Other Documents


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