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Carl Wolmarans from Nynas held a technical presentation when experts from all over the world met in Bucharest to share experiences on the development of electric power systems.
Modern Management Technology were the keywords when the international industry organisation CIGRE held the International Conference on Condition Monitoring, Diagnosis and Maintenance in the Rumanian capital city Bucharest. The conference took place from 25 until 27 September, and areas for discussion included Smart Grids, Condition Monitoring and Diagnosis in Power Plants, Modern Maintenance Tools and Technologies and Asset Management Tools for Power Equipment.
The conference in Bucharest, which also included an exhibition, provided an ideal opportunity for participants – including power systems engineers, decision makers and academics – to keep up to date with technical developments and to meet key suppliers of products and services for electrical power systems.
One of the technical presentations at the conference was given by Carl Wolmarans, Development Engineer within the Electrical Industry division of Nynas.
The basic premise of the presentation – The key aspects of insulating fluids; HV performance, ageing behaviour & fault markers – was the need for an holistic approach when evaluating the suitability of an insulating fluid for a certain equipment type and design, as there are an increasing number of options available for insulating fluids used in power transformers.
Three of the most important aspects of insulating fluids was covered briefly by Carl Wolmarans in order to provide an insight into some of the factors and properties at play.
“Firstly there is HV performance, which relies on the intrinsic chemistry of the fluid as well as its purity and condition. Then there is also ageing behaviour, where one must assess and consider oxidation, hydrolysis and thermal degradation as well as the consumption of any additives that are used to improve ageing. Lastly, some attention was paid to Dissolved Gas Analysis (DGA) and how a context-driven approach together with further research and empirical data is necessary to establish DGA norms for alternative fluids,” summarises Carl Wolmarans.
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