Abstract
A protection device is proposed that combines the functions of current transformers and current relays. The device contains a reed switch, two capacitors, two miniature relays, and three resistors. Reed switches are attached near the tires of the electrical installation at a safe distance. Relay parameters are calculated based on the operator method. The relay meets the requirements of sensitivity and performance. Unlike similar ones, it does not activate unnecessarily when contacts stick and the short-term interference is present, it is equipped with test diagnostics and simple mounting structures that allow the parameters of the relay operation to be adjusted. An experimental test confirmed the operability of the device.
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REFERENCES
D’yakov, A.F., Ishkin, V.Kh., Mamikonyants, L.G., and Semenov, V.A., World power engineering at the beginning of the 21st century, Energetika Rubezhom, 2004, nos. 4–5, pp. 7–16.
Zhantlesova, A.B., Kletsel’, M.Ya., Maishev, P.N., and Neftisov, A.V., Characterizing a sustained short-circuit current with the use of reed relays, Russ. Electr. Eng., 2014, vol. 85, no. 4, pp. 210–216. https://doi.org/10.3103/S1068371214040130
Teng, J.-H., Luan, Sh.-W., Huang, W.-H., Lee, D.-J., and Huang, Yu.-F., A cost-effective fault management system for distribution systems with distributed generators, Int. J. Electr. Power Energy Syst., 2015, vol. 65, pp. 357–366. https://doi.org/10.1016/j.ijepes.2014.10.029
Zahlmann, P., Birkl, J., Bohm, T., Buehler, K., Maget, J., Ehrhardt, A., and Shulzhenko, E., Vorrichtung zur Erfassung elektrischer Ströme an oder in der Nähe elektrischer Leiter, DE Patent 102018111308B3, 2019.
Kletsel, M.Ya., Neftisov, A.V., and Maishev, P.N., Remote determination of current amplitude and phase using a reed switch, Russ. Electr. Eng., 2020, vol. 91, no. 1, pp. 34–40. https://doi.org/10.3103/S106837122001006X
Kletsel’, M.Ya., Isabekov, D.D., Mashrapov, B.E., Myzovskii, K.V., and Mereke, A., Device of current protection on sealed contacts, KZ Patent 35153, Byull., 2021, no. 27.
Kletsel, M., Borodenko, V., Barukin, A., Kaltayev, A., and Mashrapova, R., Constructive features of resource-saving reed relay protection and measurement devices, Rev. Roum. Sci. Tech., Ser. Electrotech. Energ., 2019, vol. 64, no. 4, pp. 309–315.
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The work is supported by the Committee of Science of the Ministry of Education and Science of the Republic of Kazakhstan, grant no. AP09058249.
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Translated by F. Baron
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Kletsel, M.Y., Mashrapov, B.E., Isabekov, D.D. et al. Reed-Switch-Based Relay Protection without Current Transformers. Russ. Electr. Engin. 93, 247–253 (2022). https://doi.org/10.3103/S1068371222040058
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DOI: https://doi.org/10.3103/S1068371222040058