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. They 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 B5.69 - Experience gained and Recommendations for Implementation of Process Bus in Protection, Automation and Control Systems (PACS). The convener is Alex Apostolov from USA
  • 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. Bogdan Kasztenny (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)

The Special Reports are expected to be available in mid-April. A poster session will also be held. Early bird registration is available until 30th March at the colloquium website:
The latest Technical Brochure published (716) is a collaboration between SC A3, B5 & C4 entitled 716 “System Conditions for and Probability of Out-of-Phase.”
This brochure investigates the probability of power system separation with its consequences for related power plant, protection/control and circuit breaker requirements.
The influence of non-synchronous power plants has been studied and Transmission system operators’ policies with respect to power swings and grid code requirements have been included in the investigations.

Recommendations for future studies are in more adequate models to simulate the behavior of power systems in distress with special attention to type testing protection relays and to support decision makers, system designers/ planners, and the operational staff in control centers.
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.

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