PES Meeting – Non-Intrusive Switchgear Condition Assessment
September 13 @ 5:30 pm - 9:00 pm
Non-Intrusive Switchgear Condition Assessment
“There is a general trend in the utilities to move from systematic (time-based) maintenance to condition based maintenance and risk based maintenance taking advantage of modern diagnostic tools and the transformation of the network to the Smart Grid. The application of many of commonly used diagnostic method of switchgear is off-service, i.e. involves scheduled outages, or even worse, requires partial dismantling of switchgear. The application of continuous condition monitoring for existing high voltage circuit-breakers is expensive since involves complex retro-fitting. Moreover, the use of these diagnostic techniques on medium voltage equipment is limited. The needs of introducing new efficient diagnostic methods for switchgear in the field are increasing.
In this context, non-intrusive diagnostic methods, which are flexible and easy to use, emerge as a solution for a first-round assessment of critical parameters and detection of incipient switchgear malfunctions. CIGRE/CIRED Joint Working Group A3.32 was formed with the task to research the existing state of the art of non-intrusive methods and their field experience applied in HV and MV switchgear to assist in the evaluation of T&D switchgear conditions. In this tutorial, the overview of the existing non-intrusive switchgear diagnostic methods will be presented and definitions will be introduced.”
Nenad Uzelac has 20 years of experience as a direct contributor and a leader in Medium Voltage Power Industry, with focus on switchgear design and development. Actively participates in IEEE, CIGRE and CSA working groups and standard activities. Currently chair of IEEE Switchgear RODE (Reclosers and Other Distribution Equipment) subcommittee and convening CIGRE A3.32 working groups. Member of IEEE C37.60 and C37.62 working groups. CIGRE A3 study committee representative for USA. Current interests include electrical and magnetic field analysis, MV and HV switchgear design, development and testing, new product development process optimization, non-intrusive condition assessment, alternative gasses and internal fault studies.