EVALUATION OF CURRENT SIGNALS AT OBSERVED POINTS OF THE ELECTRICAL NETWORK IN PROBLEMS OF IDENTIFICATION OF CURRENT TRANSFORMER SATURATION
Despite the fact that the problem of saturation of current transformers (CT) has been known for a long time, it has not lost its relevance now. Cases of malfunctioning as a result of oversaturation of CT are still recorded today. This is due to the fact that the old current transformers were not des...
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| Main Author: | |
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| Format: | Article |
| Language: | Russian |
| Published: |
North Caucasus Federal University
2022-02-01
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| Series: | Вестник Северо-Кавказского федерального университета |
| Subjects: | |
| Online Access: | https://vestnikskfu.elpub.ru/jour/article/view/222 |
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| Summary: | Despite the fact that the problem of saturation of current transformers (CT) has been known for a long time, it has not lost its relevance now. Cases of malfunctioning as a result of oversaturation of CT are still recorded today. This is due to the fact that the old current transformers were not designed for the modern network parameters, and the new ones are chosen according to the principle the cheaper the better, which means that the quality of the electrical steel alloys of such transformers leaves much to be desired. According to the letter, the Ministry of Energy of the Russian Federation [6] is analyzing electric power facilities for the saturation of current transformers, as well as orders for research and development on the possibility of relay protection devices to work with saturation of current transformers. This article proposes a method for determining the saturation of a current transformer, due to the magnitude of the correla nun coefficients of adjacent measuring devices. |
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| ISSN: | 2307-907X |