Taking into account the influence of asymmetric traction load on the choice of the response parameters of blocking during oscillations of distance protection
Introduction. The paper considers the problem of the influence of asymmetric traction load (ATL) on the functioning of relay protection, in particular, blocking during swings (BD) of distance protection (DP).Goal. The paper aims to clarify the choice of parameters for the response of measuring eleme...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | Russian |
| Published: |
North Caucasus Federal University
2025-01-01
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| Series: | Вестник Северо-Кавказского федерального университета |
| Subjects: | |
| Online Access: | https://vestnikskfu.elpub.ru/jour/article/view/2818 |
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| Summary: | Introduction. The paper considers the problem of the influence of asymmetric traction load (ATL) on the functioning of relay protection, in particular, blocking during swings (BD) of distance protection (DP).Goal. The paper aims to clarify the choice of parameters for the response of measuring elements (ME) of the negative sequence current (NSC) (and its increment) of BD DP in the presence of traction substations in the electric network.Materials and methods. The study is based on the analysis of the modes of electric networks of external traction power supply.Results and discussion. The work shows the need to take into account the NSC component caused by the ATL when choosing the parameters of the MI NSC.Conclusion. Based on the results of the conducted study, it can be noted that the TOPs caused by the TNG may exceed the negative sequence unbalance currents generated by oscillations (asynchronous mode), which requires their consideration when selecting the response parameters of the BC DZ protection of overhead lines. |
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| ISSN: | 2307-907X |