Oil extraction detection position determination method for oil-immersed transformer

• Main Authors: HUANG LONG, FENG YUXUAN, ZHOU QU, HE DANDONG, LI LONGFEI, XU GUANGHU, YANG DINGQIAN, DU JIABAO, YU HUA, HAN DANDAN, DU ZHAOGUANG
• Format: Patent
• Language: Chinese; English
• Published: 05.03.2024
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention relates to the technical field of transformer fault diagnosis, in particular to an oil extraction detection position determination method for an oil-immersed transformer. According to the invention, a plurality of same-type unshelled sample transformers with different fault types are sequentially installed in an oil immersion test device; aiming at each sample transformer, finding out an oil extraction level which can most reflect a fault; and weighting the oil extraction level according to the fault occurrence probability, and selecting the oil extraction detection position of the same sample transformer. According to the method, the oil extraction level of the faulty transformer is found out in a test mode, a better oil extraction level is provided for on-line monitoring of the transformer, more fault characteristics of dissolved gas in insulating oil can be reserved, and the sensitivity of on-line monitoring of the transformer can be remarkably improved; the oil extraction levels of different