Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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OPTIMIZATION OF TRANSFORMERS DIFFERENTIAL PROTECTION SETTINGS WITH ITS ADEQUATE MATHEMATICAL MODELS

Andreev M.V. 1 Borovikov Y.S. 1
1 National Research Tomsk Polytechnic University
In this paper considered the problem of wrong actions of relay protection (RP) and emergency automation (EA), including the transformer differential protection (TDP). It was found that the main reason of this problem it is discrepancy of TDP settings from real operation conditions, mainly associated with the use of several gross simplifications in existing method of TDP settings calculation. Based on the research, briefly presented in the article, it is concluded that the adequate mathematical models, considering peculiarities of the specific implementations and processes in current transformers (CT) and integrated into the appropriated aids, in particular, into designed by article’s author program – mathematical modeling of TDP, are effective tools for testing and optimizing of TDP settings.