CIGRE Study Committee B5

Author: Richard Adams, Ramboll, UK

During the CIGRE session in Paris 2018, 3 new working groups were suggested. The first of these was approved by the Technical Committee Chair in November and the remaining two in December.
These groups are now forming their membership and arranging their first meetings and are:

  • WB B5.68 - Optimization of the IEC 61850 Protection, Automation and Control Systems (PACS) engineering process and tools. The convener is Camille Bloch from France
  • WG B5.70 - Reliability of Protection Automation and Control System (PACS) of power systems – Evaluation Methods and Comparison of Architectures. The convener is Alexander Voloshin from Russia

The SC B5 Colloquium will be held in Tromso, Norway, 24 – 28th June 2019. A tutorial will be held covering the two topics below:

  • Impact of geomagnetic storms on protection
    • Physical Phenomena – Dr. Paal Brekke (NO)
    • Impact on Power Systems and Mitigation Techniques – Stein Ingebrigtsen (NO)
    • Impact on Instrument Transformers and Protection – Dr. Normann Fischer (CA)
  • Precision Time Protocol PTP

Principles and applications of Precision Time Protocol PTP – Roman Graf (CH)

The following Preferential Subjects will be discussed:

  • PS1 - Leveraging PMU data for better Protection, Automation and Control Systems.

Special Reporter: Rafael Fernandes (BR)

  • PS2 - Time in Protection Applications – Time sources and distribution Methods

Special Reporter: Dr. Yubo Yuan (CN)

  • PS3 - Future technologies for inter-substation communication, Migrating Digital, Teleprotection Channels to Packet - Based Networks

Special Reporter: Dr. Fred Steinhauser (AT)

28 papers were received for PS1, 19 for PS2 and 9 for PS3. The Special Reports have been made available in late April on the colloquium website and contributions are invited before 10th June.

A poster session will also be held. Registration is still available colloquium website
The latest Technical Brochure published (760) is entitled “Test strategy for Protection, Automation and Control (PAC) functions in a fully digital substation based on IEC 61850 applications.” The wide spread development and implementation of IEC 61850 based Substation Protection, Automation and Control Systems (SPACS) using predominantly GOOSE messages and client/server communications has raised the awareness of the industry regarding the benefits of communications-based systems.

At the same time, the last years have seen a significant change in the availability of stand-alone and embedded Non-Conventional Instrument Transformers (NCIT) with IEC 61850 sampled values interfaces.
For this reason, the testing of fully digital functional chains has become an important issue with the deployment of IEC 61850-based substations using Stand Alone Merging Units (SAMU), and/or NCIT and featuring both station bus (IEC 61850-8-1) and process bus (IEC 61850-9-2).

This Brochure covers all test related aspects of a fully digital SPACS and equipment, including NCIT/SAMU Certification tests, SPACS level Interoperability tests, Factory Acceptance Tests, Commissioning and Site Acceptance Tests and Maintenance tests after commissioning

The brochure can be downloaded free of charge by CIGRE members from the e-cigre web site and can be purchased by non-members. 


Richard Adams is a Principal Engineer with Ramboll in UK. He has a degree in Electronic and Electrical Engineering and is a Fellow of The Institution of Engineering and Technology. He is a member of the organizing committee for DPSP (Developments in Power System Protection) conference and chair for DPSP 2020. He is currently Secretary for CIGRE Study Committee B5, having been involved in CIGRE since 2003, initially as UK Regular Member, then later as a member of the Strategic Advisory Group. He is also convenor for Working Group B5.41 (Improved Metering Systems for Billing Purposes in Substations). Richard is married with three children and likes to get out walking if there’s time.

Relion advanced protection & control.
BeijingSifang June 2016