Application Research of Modular Prefabricated Intelligent Circuit Breakers in Power Distribution Network Live Working

Taking an intelligent renovation project of a distribution network in Guangdong as an example, this study delves into a modular, prefabricated, and intelligent technical solution primarily centered on circuit breakers. The solution enables the replacement of distribution network equipment without interrupting power supply to users, along with its technical design and application effectiveness. Engineering verification demonstrates that this approach significantly enhances the reliability of distribution network power supply, optimizes operational safety, and improves the intelligence level of operation and maintenance. It holds certain promotional significance for advancing urban distribution network operation and maintenance toward a more efficient, safe, and intelligent direction.