Residual current safety monitoring and management technology in smart city

This is the authors' abstract. We don't add key points for this paper.

According to the national fire situation statistics in 2022, electrical fires caused by residual current failures account for about 14% of the total. At present, the user-side load is increasingly complex, and the residual current signal is difficult to effectively identify, which seriously hinders the safe and healthy operation of smart cities, and it is urgent need for the residual current monitoring technology. Aiming at the hidden dangers of electricity consumption caused by residual current, this paper combined with the monitoring principle of residual current, proposed a cluster analysis of residual current hidden danger diagnosis technology based on particle size calculation, obtained the nonlinear relationship between characteristic data and other variables, output the residual current diagnosis results, and verified them in the laboratory and on-site conditions, realizing the effective monitoring of residual current in smart cities, which may improve the safety and reliability of city electricity.