Project Description

MCU 500

Merging Unit and Circuit Breaker Controller

Being part of Efacec portfolio for Digital Substation solutions, the MCU 500 is a state-of-the-art IED for near-process applications and integration of smart power
equipment in process bus architectures, including both stand-alone merging unit (SAMU) function for current and voltage signals acquisition and circuit breaker
and switch controller functions (BIED) for interfacing switching devices.

The MCU 500 enables several communication network architectures, including zero-time recovery protocols and accurate time synchronization from several
sources and it is suitable for distinct applications, covering Transmission, Sub-Transmission and Distribution substations, supported on multiple product options
that enable fit-for-purpose and cost-effective solutions.

Object orientation and state-of-the-art toolset, combined with pre-configured application templates, allow straightforward engineering throughout the system
life-cycle without compromising user requirements. Designed with IEC 61850 and other open standards in mind the MCU 500 is future-proof and can also be
seamlessly integrated in multivendor distributed systems.

  • Stand-alone merging unit function
  • Circuit breaker and switch controller
  • IEC 61850-9-2LE publisher, prepared for IEC 61869-9
  • IEC 61850-9-2LE subscriber
  • IEC 61850 Server and GOOSE publisher/subscriber
  • PRP/HSR communication redundancy options
  • Accurate measurement and disturbance recording
  • Event recorder
  • CT, VT and trip circuit supervision
  • Distributed Automation according to IEC 61850 and IEC 61131-3 programming
  • Integrated webserver
  • Watchdog and self-monitoring
  • State-of-the-art configuration and management software
  • Single device hardware and software platform
  • Multiple applications
  • High application adaptability while being easy to specify, configure, test and maintain
  • Extended range of operation for process-level applications
  • High-availability and redundancy options
  • Enhanced performance and accuracy
  • Protection, control, monitoring, measurements and recording integrated in each device
  • Web-based interface and advanced diagnostics
  • Architecture supports the latest IEC 61850 edition including process bus
  • Fully-integrated in the system engineering toolset