The hardware design of intelligent circuit breaker

摘要

Intelligent circuit breaker plays a very important role in power supply and distribution system, i.e., on line overload, short circuit and grounding fault protection. Current, voltage signal intelligent circuit breaker to get main line through the detection unit, the central processing unit after the analysis judgment sends signals to control the action of breaker, the central processing unit is composed of single chip computer and peripheral circuit of high performance components, detection unit is composed of transformer and signal processing unit, and can display the tripping current value, always set the rated current, trip mode, the host computer communication etc.