Pregled bibliografske jedinice broj: 948989
Insulation condition during transformer manufacturing
Insulation condition during transformer manufacturing // Electra, 2018 (2018), 299; 1-4 (međunarodna recenzija, članak, stručni)
CROSBI ID: 948989 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Insulation condition during transformer manufacturing
Autori
Bengtsson, C. ; Krause, C. ; Mikulecky, A. ; Scala, M. ; Lessard, M-C ; Melzer, L. ; Hurlet, P. ; Rajotte, C.
Izvornik
Electra (1286-1146) 2018
(2018), 299;
1-4
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, stručni
Ključne riječi
Power transformer, insulation ageing, transformer manufacturing, degree of polymerisation, temperature, humidity
Sažetak
The main objective of this position paper is to identify gaps in knowledge and issues in relation to verification of cellulosic insulation material properties during and after manufacturing of oil/cellulose insulated power transformers and shunt reactors. It provides input for future work in this field. In addition, it also provides the reader with an overview of this area. Along with the identified gaps, some aspects are discussed in more detail, e.g. physical material parameter(s) that are relevant for a transformer to withstand stresses in service, end-of-life definitions and measurement techniques. The paper is focused on oil-cellulose insulated, medium- or large power transformers, reactors and similar equipment. It is also confined to cover cellulose properties and their characterization during production of new transformers. The conditions during manufacturing differ significantly from the operation of old transformers in service and the challenges in the characterization of properties differ as well. Hence, the discussion does not cover long term properties of the insulation. It neither includes design dependent issues, nor questions related to short circuit performance.
Izvorni jezik
Engleski
Znanstvena područja
Elektrotehnika
