Detection of the initial region of the current transformer core saturation

In thefirst part of thepaper the detailed analysisof the existing current transformer (CT) saturation detectionmethodswiththeirclassificationis presented.Anew saturation detection method has beenproposed in secondpart of the paper. Mathematical description of the method is given.Inthe next section of the paper a CT model with test scheme ispresented. To identify the reliabilityof proposedmethod againstnose and remanentflux densityexperiments have been produced in the fourthsection. Comparativeanalysisbetween proposedand existing methods is also given.Finally, in conclusiona detailed description of the method is givenregarding its behavior with respect to remanent flux and noise.