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1. Context
In electrical engineering, liquids are used either as fillers for electrical equipment (transformers, for example), or as impregnants for solid insulation (capacitors, cables, etc.). In the latter case, the liquid mainly plays a dielectric role.
In the field of power electronics and the semiconductor industry, where the main problem is the evacuation of heat losses, liquids (e.g. fluorinated hydrocarbons) are used as dielectric coolants. They are also used to cool supercomputers and data centers.
Liquid dielectrics are also used in special-purpose equipment: circuit breakers, on-load controllers, compressors, special-purpose electric motors, electrostatic generators, coils for electromagnets, particle gas pedals, thyristors, etc. They can also be used as a liquid for electrical discharge machining (EDM). They can also be used as EDM fluids....
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Context
Classification and numerical data for liquid dielectrics
Bibliography
Websites
European Union legislation : http://eur-lex.europa.eu
International Electrotechnical Commission (IEC) : http://www.iec.ch
Organisation for Economic Co-operation and Development (OECD) :
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Events
International Conference on Dielectric Liquids (ICDL): tri-annual (2014, 2017, 2020,...).
Société Française d'Électrostatique conference: biennial (2016, 2018,...)
IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP): annual.
Electrical Engineering Symposium (EES), biennial (2016, 2018,...)
Standards and norms
The use of insulating liquids is governed by international and/or national standards. The main standards are listed below.
International Electrotechnical Commission IEC
Publication number, date and title
- Power transformers – Part 7: Loading guide for oil-immersed transformers - CEI 60076-7 - 2005-12
- Electrical equipment for potentially explosive atmospheres...
Directory
Manufacturers – Suppliers – Distributors (non-exhaustive list)
Mineral oils
ESSO Imperial Oil (Canada) : https://www.mobil.com
Nynas AB (Sweden) : https://www.nynas.com
Aromatic hydrocarbons (Jarylec C101, Jarylec...
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