摘要
Abstract
This paper has an objective to show a developed quantitative criterion, based in two mathematical variables that explicit the deviation degree of a normal situation, applying simultaneously data from terminal impedances and frequency response. Based in more than 100-measured equipment, of different applications (step-up transformer, transmission transformer, etc.,), for a period of 10 years, the work presents some examples of practical application of this methodology in Brazilian Electrical System.关键词
correlation coefficients/diagnosis/frequency response/power transformers/spectrum's deviation/terminal impedance/transfer functionsKey words
correlation coefficients/diagnosis/frequency response/power transformers/spectrum's deviation/terminal impedance/transfer functions分类
信息技术与安全科学
