USP 020 – Multifunction RTU for MV/LV switchgear applications

Telecontrol, FPD, MV and LV supervision in a modular device

The USP remote controller is an advanced multipurpose RTU ideally suited to Distribution Automation.

Its modular design facilitates the automation of different MV facilities: modern compact RMU, overhead interrupters & reclosers. It offers a cost effective solution for extensible MV/LV switchgear applications and LV feeder monitoring. In addition to standard protocols and features, it supports a larger number of inputs / outputs.

Key features

  • Remote control protocols (IEC 60870-5-104/101/103, DNP3.0, Modbus).
  • Modular chassis. 5 and 8 slots models.
  • MV and LV supervision integration by connecting to 5CTI supervisors through its RS485 isolated port.
  • Serial and Ethernet ports.

Modular Chassis.

5 & 8 slots models. It supports a range of configurable I/O modules, including 16 digital input modules, 8 digital output
modules & AC analog input channel modules. Plus 8 channel DC analogue inputs (optional). The AC analog channel module requires 2 slots. All modules are certified to power utility standards.

Programmable Logic & Automation
The USP unit can define internal signals through its programmable logic from both the digital inputs and internal states, and forward them to LEDs and digital outputs. Remote units can also manage and control up to 3 switches / sectionalizers of a compact SF6 RMUs. A 3LxP configuration is the largest application case.

Remote control Protocols & Security
The USP can communicate with a control center or SCADA system using different protocols: IEC 60870-5-104/101/103, DNP3 or Modbus over TCP/IP. All the remote operations are transmitted over secure transport protocols like HTTPS or SSH. Authentication access over LDAP and TACACS+ protocols is supported. Other functions such as remote firmware update and configuration through web server or web services are included.

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