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Vol.14, No.3, August 2025. ISSN: 2217-8309 eISSN: 2217-8333
TEM Journal
TECHNOLOGY, EDUCATION, MANAGEMENT, INFORMATICS Association for Information Communication Technology Education and Science |
Ensuring Electromagnetic Compatibility of Microprocessor Relay Protection Devices
Viliam Ďuriš, Sergey G. Chumarov, Vladimir N. Ivanov
© 2025 Viliam Ďuriš, published by UIKTEN. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License. (CC BY-NC-ND 4.0)
Citation Information: TEM Journal. Volume 14, Issue 3, Pages 1941-1947, ISSN 2217-8309, DOI: 10.18421/TEM143-03, August 2025.
Received: 14 December 2024. Revised: 23 June 2025.
Abstract:
The article discusses the problems, relevance and methods of solving the problem of electromagnetic compatibility (EMC) of microprocessor devices in relay protection and automation systems. Theoretical information is provided on methods for calculating electromagnetic fields from holes in metal surfaces. Electromagnetic fields penetrate into electrical cabinets through technological openings such as ventilation, power and information cable entries, door slits, viewing windows, etc. The electric field distributions in an electric cabinet are given for three frequencies in the microwave range, the wavelengths of which are commensurate with the sizes of ventilation holes and holes for supply lines based on the High Frequency System Simulator (HFSS) software product. The current test requirements are set out in the International Electrotechnical Commission (IEC) 61000-4-3 standard, which regulates the requirements for the stability of electrical and electronic equipment to radiated electromagnetic energy.
Keywords – Microprocessor relay protection system, electromagnetic field, mathematical modeling methods, electrodynamic modeling. |
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