Development and Application of a Flexible Indication Device for Grounding Wire Status

In the process of electrical equipment maintenance, it is especially important to eliminate personal injury accidents caused by false hanging of grounding devices and induction and backwards power feed caused by poor grounding in field operations. The paper proposes a design of a quick indicator device for grounding wire conducting status based on fast magnetic field detection. The conducting status detection unit uses a miniature three-dimensional magnetic field to realize real-time high-speed magnetic field monitoring, the conducting status alarm unit realizes local acoustic and optical alarms through three thresholds, and the wireless signal sending unit realizes cloud display of conducting status information. The paper provides this monitoring device for current measurement on grounding conductors.