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Easergy T300

A powerful Remote Terminal Unit for feeder automation

Part of PowerLogic

Remote control and monitoring for energy distribution automation

Easergy T300
  • Features

    The new benchmark in distribution network automation.

    Easergy T300 Remote Terminal Unit (RTU) is a modular platform of hardware and firmware, and an application building block for Medium Voltage and Low Voltage public distribution network management. It offers a single solution for control and monitoring from a simple pole-top device to a large MV/MV or MV/LV substation.

    Easergy T300 RTU offers a wide range of functions to meet your needs, including:
    • Centralized and decentralized MV and LV distribution network management: fault location, isolation, and service restoration
    • Private network management (MV loops): Self-healing network management – Automatic Transfer Switch
    • Volt/VAR optimization support for distributed generation integration
    • MV and LV power and quality measurement according to standard EN 50160
    • Asset management efficiency
    Modular offer description by function
    • Easergy HU250 - Head unit communication gateway
    • Easergy SC150 - MV switchgear controller
    • Easergy LV150 - Transformer and LV switchboard monitoring
    • Easergy PS100/PS50/PS25 - Wide range of backup power supplies
    Flexible communication to control centers and wider networks
    • Master and slave protocols: IEC 60870-5-101/104, DNP3, Modbus, IEC 61850
    • Multi-protocol and redundancy management
    • Peer-to-peer communication for self-healing applications
    • Flexible communication media: Ethernet, USB, 2G, 3G, 4G, RS232/485
    • Wi-Fi connectivity for local operation
    Stronger cybersecurity management
    • Compliant with IEC 62351 and IEEE P1686
    • SCADA communication security (IEC 62351-5)
    • Local and remote access security based on RBAC (IEC 62351-8)
    • Connection security for maintenance (local and remote): HTTPS, SSH
    • Protocol security for file transfer: SFTP
    • Authentication by centralized Radius client
    Medium voltage network management
    • Advanced non-directional and directional fault current detection for all neutral systems
    • MV broken conductor detection based on voltage
    • Automation: Sectionalizer; Auto transfer source; Self-healing and dedicated, based on IEC 61131-3 PLC
    • MV Power measurement according to IEC 61557-12
    • MV Power quality according to IEC 61000-4-30 Class S
    • Capable of managing up to 24 Load Break Switches
    Transformer and low voltage network monitoring
    • LV broken conductor detection (fuse detection)
    • LV Power measurement according to IEC 61557-12
    • LV Power quality according IEC 61000-4-30 Class S
    • Transformer temperature monitoring
    Backup power supply range for control and monitoring applications

    The Easergy T300 back-up power supplies are designed for power supply interruptions in order to maintain control and monitoring of the MV substation during the outage.

    Remote and local maintenance with simple tools
    • Embedded web server compatible with PCs, smartphones and tablet computers
    • Firmware and remote/local database update security
    • Full web applications for substation and RTU asset management
    • Simple configuration update on site, due to modular construction


    • Reduce MV and LV outage durations (SAIDI)
    • Manage voltage regulations with accuracy
    • Synchronize voltage measurements on the feeder in order to facilitate distributed generation integration
    • Measure the MV and LV power quality according to EN 50160
    • Manage MV and LV energy growth (peak shaving)
    • Reduce technical and non-technical losses
    • Reduce CAPEX with a single, multi-application, modular offer
    • Optimize asset management and the equipment lifespan


    • Underground MV/MV and MV/LV substation control and monitoring
    • Overhead load break switch (LBS) control
    • Pad-mounted and overhead transformer monitoring
    • MV line and end-of-line voltage monitoring
    • LV network distribution monitoring
    • Distributed energy resources control and monitoring


    • Easergy HU250 - Head Unit
    • Easergy SC150 - Switch controller
    • Easergy T300 - OVR cabinet
    • Easergy LV150 - Transformer and Low Voltage monitoring
    • Easergy T300 - IVR cabinet

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