6533b855fe1ef96bd12b1156
RESEARCH PRODUCT
Electromagnetic and Thermal Modelling for Calculating Ageing Rate of Distribution Transformers
Sveinung AttestogHuynh Van Khangsubject
010302 applied physicsMaterials science020209 energyNuclear engineeringchemistry.chemical_element02 engineering and technologyDistribution transformer01 natural sciencesFinite element methodElectromagnetic modellinglaw.inventionchemistryElectromagnetic coilAluminiumlaw0103 physical sciencesThermal0202 electrical engineering electronic engineering information engineeringSkin effectTransformerdescription
Prediction of the lifetime for transformers is very important for maintenance and asset management. Finite element analysis was performed on a 5 MVA distribution transformers with aluminium foil-type windings and voltage rating 6600 V/23000 V. Electromagnetic modelling is implemented on the full three-phase transformer to calculate distributed losses, taking the skin effect into account. To reduce the computational burden, the distributed losses in one phase are used to analyse temperature rise in one phase of the transformer. The temperature rise results were used to determine the ageing rate of the transformer. Further, the influence of ambient temperature and cooling on the temperature rise and ageing rate of the transformer is numerically investigated.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-10-01 | 2018 21st International Conference on Electrical Machines and Systems (ICEMS) |