Insulation paper aging detection method based on decomposition product and related device

• Main Authors: PENG LEI, ZHANG WEIPING, LI ZHI, FU QIANG, ZHANG LI, LIN MUSONG
• Format: Patent
• Language: Chinese; English
• Published: 28.07.2023
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention discloses an insulation paper aging detection method based on decomposition products and a related device. The method comprises the following steps: determining at least two decomposition products decomposed due to aging of insulation paper in insulation oil of an oil-immersed transformer; respectively constructing objective functions for all decomposition products under an aging model of the same structure, wherein the objective functions represent the relationship between the index values of the decomposition products in the insulating oil and the aging time of the insulating paper; detecting an index value of each decomposition product in the insulating oil; for each decomposition product, substituting the index value into a target function to calculate the aging time of the insulation paper, and taking the aging time as reference aging time; and fusing the reference aging time corresponding to all decomposition products into the target aging time of the insulation paper. The decomposition pr