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http://dx.doi.org/10.5370/KIEE.2017.66.1.194

Noise Improvement Countermeasure by Noise Pattern Analysis for Electrical and Electronic Equipment  

Cho, Dae-Hoon (Dept. of Electronics and Electrical Engineering, Dankook University)
Lee, Ki-Sik (Dept. of Electronics and Electrical Engineering, Dankook University)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.66, no.1, 2017 , pp. 194-202 More about this Journal
Abstract
In this study, we measured and analyzed electrical noise signals present in devices and systems operated in industrial facilities. Based on the analytic findings, we studied the most effective improvement measures for eliminating such noise signals. Leakage current and ground current generate data interferences in communication systems, and therefore we measured leakage current and ground current. We also measured and analyzed electrical noises in power systems to predict noise pathways and interference routes. Furthermore, we proposed the most effective and reliable improvement measures for blocking off various noise signals and safely eliminating them by improving the internal wiring of the facilities and grounding systems. As a final step, we conducted the proposed improvement measures and confirmed that they helped to improve the operations of the device sand systems in service by re-measuring electrical noise signals and comparing them with those measured before the proposed improvement measures were implemented.
Keywords
Equipotential bonding configuration; Noise coupling; Noise interference; Power quality;
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