Title :
Intelligent system applied in diagnosis of transformer oil
Author :
da Silva, I.N. ; de Souza, A.N. ; Hossri, R.M.C. ; Hossri, J.H.C.
Author_Institution :
Sao Paulo Univ., Brazil
Abstract :
The accurate diagnosis of transformer oil is very important to establish the degree of the aging of transformers. Several experimental tests and theoretical analyses have been carried out to obtain parameters associated with the advances on understanding failure processes and regeneration systems. This paper describes a novel approach for mapping diagnosis of oil using an intelligent system based on artificial neural networks. The network acts as an identifier of structural features of the oil so that output parameters can be estimated and generalized from an input parameter set. This set takes into account several factors, such as interfacial tension, density, oil temperature, humidity, pressure, furfural level and so on. The results obtained by the network are compared with those which had been provided by tests of chromatography in the laboratory
Keywords :
ageing; automatic testing; failure analysis; fault diagnosis; neural nets; power transformer insulation; power transformer testing; transformer oil; aging; artificial neural networks; chromatography; density; failure processes; furfural level; humidity; input parameter set; intelligent system; interfacial tension; oil temperature; output parameters; pressure; regeneration systems; structural features; transformer oil;
Conference_Titel :
Dielectric Materials, Measurements and Applications, 2000. Eighth International Conference on (IEE Conf. Publ. No. 473)
Conference_Location :
Edinburgh
Print_ISBN :
0-85296-730-6
DOI :
10.1049/cp:20000528