Abstract
Monitoring of the technical state and the location of failures are the urgent tasks providing failure-free operation of furnace transformers of metallurgical plants. Solution of these problems predetermines the urgency of introducing diagnostic systems and test instruments as well as development of ways and methods providing localization and identification of faults. It was shown that the most efficient solution of these problems is provided by mean of acoustic finding of partial discharges and further calculation of their integral characteristics. A new method of state control was developed, which includes on-line monitoring carried out by a stationary system and a periodic acoustic finding of partial discharges by a portable instrument. The research group considered a method of failure localization based on the defining of discharge coordinates in the transformer tank and their mathematical processing using the subtractive clustering method. The article offers an example of a certain failure localization of the ladle furnace transformer. It was confirmed that localization of the failure was quite valid. The authors offer their recommendations on maintenance of the transformer and further application of the obtained results.
Keywords
Furnace transformer, technical state, monitoring, failure, localization, method, partial discharges, acoustic radar, practical application, validity, confirmation.
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