Design and Application of Automatic State Monitoring System for Low Voltage Circuit Breakers

As an important protection and control equipment in the power system, the safety and reliability of low-voltage circuit breakers are crucial for ensuring the safety of the distribution network. In response to the problems of traditional low-voltage circuit breakers not having communication function and poor controllability of operating status, a design scheme for low-voltage circuit breaker automation status monitoring system based on ARM is proposed based on the intelligent circuit breaker technology. The design objectives, hardware and software design, and implementation of functions are emphasized. The system application verification can achieve real-time collection and intelligent monitoring of core operating parameters such as voltage, current, and temperature of the circuit breaker. It also has multiple protection functions such as three-section current and single-phase grounding, achieving the digital and intelligent design goals of low-voltage circuit breakers.