Ensuring the operability of feeder voltage control relay when power supply voltage harmonics deviate from standard values
- Authors: Shatohin V.A.1, Chernov E.K.1
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Affiliations:
- Emperor Alexander I St. Petersburg State Transport University
- Issue: Vol 11, No 2 (2025)
- Pages: 291-306
- Section: Original studies
- URL: https://bakhtiniada.ru/transj/article/view/311287
- DOI: https://doi.org/10.17816/transsyst682002
- ID: 311287
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Abstract
BACKGROUND. Due to poor power quality for feeders, the power supply reliability decreases, leading to more failures of railway automation and telemetry devices. This paper discusses the influence of harmonics on the operation of a voltage control relay generating a signal to switch the feeder on load.
The relevance of the study is evidenced by the increased number of voltage control relay failures in operation, resulting in emergency situations and train delays.
AIM. To reduce the number of voltage control relay failures.
MATERIALS AND METHODS. Analysis of failures occurring during operation of voltage control relays, physical modeling of processes leading to failures and synthesis of solutions protecting from destructive processes leading to failures.
RESULTS. The authors determined the cause of voltage control relay failures, modeled destructive processes leading to failures, and proposed solutions to reduce failures associated with poor-quality power supply voltage.
CONCLUSION. The proposed solutions allowed to reduce the number of voltage control relay failures and enhance the power supply reliability of railway automation and telemetry devices.
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##article.viewOnOriginalSite##About the authors
Vitaly A. Shatohin
Emperor Alexander I St. Petersburg State Transport University
Email: vital@crtc.spb.ru
ORCID iD: 0000-0003-2167-4189
SPIN-code: 5318-5089
Cand. Sci. (Engineering), Associate Professor
Russian Federation, St. PetersburgEgor K. Chernov
Emperor Alexander I St. Petersburg State Transport University
Author for correspondence.
Email: egorsk-01@yandex.ru
ORCID iD: 0009-0000-7759-3367
SPIN-code: 4278-9776
postgraduate student
Russian Federation, St. PetersburgReferences
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