Practical risk assessment of the relaxation of LOM protection settings in NIE Networks' distribution system

Adam Dyśko, Dimitrios Tzelepis, Campbell Booth, Jonathan Pollock, David Hill

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Abstract

This study presents the methodology, experience and practical outcomes of the risk assessment-based revision of loss-of-mains (LOM) protection settings in the NIE Networks' distribution system. An investigative project has been undertaken by the authors to revise the current LOM practice as recommended by the G59/1/NI regulation and to propose the settings which would meet the all-Ireland transmission system stability criteria. It is also important to ensure that any increased personal risk is realistically quantified and satisfies the health and safety requirements. Both aspects (i.e. LOM protection stability and sensitivity) are covered in the study. The results and observations included in the study aim to provide the means and supporting evidence for achieving the best compromise in the revision of LOM protection settings.
Original languageEnglish
Pages (from-to)1335 – 1339
Number of pages5
JournalIET Generation, Transmission and Distribution
Volume2018
Issue number15
Early online date18 Jul 2018
DOIs
Publication statusE-pub ahead of print - 18 Jul 2018

Keywords

  • distributed generation
  • risk assessment
  • loss of mains
  • islanding

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