CIGRE JWG A3.43 progress report “Tools for lifecycle management of T&D switchgear based on data from condition monitoring systems'

In March 2019 the joint working group A3.43 "Tools for lifecycle management of T&D switchgear based on data from condition monitoring systems" started its activities with the goal to provide inside three years a guide on how to use the data from monitoring activities of switchgear. The working group counts presently 34 members, from 17 different countries met already five times and work is ongoing on the main Technical Brochure (TB) structure as follows: 1. Executive summary 2. Introduction 3. Literature Review 4. Condition indicators of T&D switchgear 5. Tools and Criteria for lifecycle management and Switchgear Health Index 6. Compliance with digital substation for data management 7. User’s experiences of end-of-life of T&D switchgear: survey, case studies and interviews 8. Future needs and trends A literature review offers a glimpse into state of the art tools and techniques for lifecycle management and the equipment used. A very steep increase of publications on this matter is observed in the last years with implications in other aspects beyond lifecycle management. Second, the condition indicators as determined in the TB737 are taken over and used in this work as proxies for the switchgear variables evaluation. The main part of the work concentrates on the tools and techniques their framework established. The works from other WG’s on substation level on B3 study committees are introduced as an organic part of the activities. A fundamental decision has been made to follow Health Index concepts as defined in B3.48 concentrating on providing valuable inputs specifically for switchgear. The main focus is on Tools and Criteria for lifecycle management for which the target is to propose models which can condense the specific and deep knowledge of the members to arrive to an advanced and reliable assessment. Some concrete examples are planned to act as guidelines on how to apply the theory to real life scenarios. The digitization of substation equipm
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