This paper deals with a life model for low voltage polyester- insulated capacitors subjected to time-varying temperature. The results of accelerated life tests performed on low voltage polyester-insulated capacitors at various temperatures are illustrated and from them a constant-temperature life model is derived. Such model, inserted within a “Miner’s law” framework, gives rise to a variable-temperature life model that is compared with the results of subsequent life tests performed on the same kind of capacitors under daily temperature cycles. This is a milestone towards real-time life estimation of capacitors subjected to time-varying temperature, as well as towards the extension of this approach to other electrical devices.
Titolo: | Towards real-time life estimation of capacitors subjected to time-varying temperature |
Autore/i: | ALBERTINI, ANDREA; MASI, MARIA GABRIELLA; MAZZANTI, GIOVANNI; PERETTO, LORENZO; TINARELLI, ROBERTO |
Autore/i Unibo: | |
Anno: | 2010 |
Titolo del libro: | Atti della 2010 IEEE Conference on Electrical Insulation and Dielectric Phenomena (IEEE CEIDP) |
Pagina iniziale: | 81 |
Pagina finale: | 84 |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1109/CEIDP.2010.5724055 |
Abstract: | This paper deals with a life model for low voltage polyester- insulated capacitors subjected to time-varying temperature. The results of accelerated life tests performed on low voltage polyester-insulated capacitors at various temperatures are illustrated and from them a constant-temperature life model is derived. Such model, inserted within a “Miner’s law” framework, gives rise to a variable-temperature life model that is compared with the results of subsequent life tests performed on the same kind of capacitors under daily temperature cycles. This is a milestone towards real-time life estimation of capacitors subjected to time-varying temperature, as well as towards the extension of this approach to other electrical devices. |
Data prodotto definitivo in UGOV: | 12-nov-2010 |
Appare nelle tipologie: | 4.01 Contributo in Atti di convegno |