A Novel Transformer Fault Diagnosis Method Based on Gross Error Examination
The study applied the gross error theory to the transformer fault diagnosis, proposing a method for transformer fault diagnosis by integrating the gross error examination and the characteristic gas ratio method. In this way it is possible to judge whether the transformer is in face of an incipient fault by examining the gross errors of the measurement series of the fault characteristic gases, at the same time the fault probability could be calculated according to the remarkable level. And then in combination with the characteristic gas ratio method, the fault category and fault cause of the transformer could be figured out. The method has been validated by an actual example of fault diagnosis.
Yungang Li, Pengcheng Wang, Liqun Ai, Xiaoming Sang and Jinglong Bu
J. Su and X. G. Wang, "A Novel Transformer Fault Diagnosis Method Based on Gross Error Examination", Advanced Materials Research, Vols. 291-294, pp. 2779-2786, 2011