MV/LV substation monitoring - Sentinel FRTU

Sentinel-FRTU (Feeder Remote Terminal Unit) / Centraliser of data for the remote monitoring of MV/LV transformer substations.

Main characteristics

Installed in MV/LV transformer substations, the Sentinel-FRTU centralises data and events collected in a power substation and sends this information remotely to a control IT  centre therefore:

• Monitors the main components of a MV/LV substation
  • Fault passage indicators (FPI / FCI)
  • Substation environment
  • MV/LV transformer
  • Low voltage panel board
• Collects the main LV electrical amounts
• Monitors these amounts and generates alarms or events
• Stores and timestamps these events and measures
• Reproduces the alarms, measurements and events locally or remotely via a communication means (GSM/GPRS, Ethernet) to:
  • Field agents (receiving SMS alerts)
  • Operations managers (ex. on-call staff)
  • A remote computer system for analysis or monitoring

Key points:

• Powered from the substation’s 230 Vac LV
• Collects data from measurement units
• Two groups of 4 digital inputs (door opening contact, water level, etc.)
• Two PT1000 inputs for monitoring temperatures
• Four communication ports
• Onboard web server

Advantages

• Easy installation, on new structures and when retrofitting
• Better perception of balance between loads and production
• Integration of optimised renewable energy
• Monitored quality of the distributed energy
• Highlighted phase imbalances
• Easy prioritisation of necessary network improvements

Uses

• Private network and public distribution network
• Any type of MV/LV substation can be monitored