Overcurrent protection circuit

As shown in diagram a electrical protection systems can be connected in series between the power supply and the electrical load, into a prevent operation of the overcurrent circuit in the circuit. The system including: a control components (104), in flows through a comparison low of current INORMAL Shi, the components has lower of resistance RLOW, dang flows through of current from INORMAL increased to a higher of current IFAULT Shi, the components on will was conversion into higher of resistance RFAULT; and control components series connection of a a circuit breaker components (108), dang current INORMAL by control components Shi has a normal state, This normal state allows current INORMAL in system in the through, and has a fault State, this state up only allows a obviously is less than INORMAL of small current through; and a and control components and circuit breaker components of series combination parallel connection of bypass components (106), and is features sexual to connection to circuit breaker components Shang, to in through bypass components of current increased Shi will circuit breaker components conversion to fault State. When the current through the system increased from INORMAL to IFAULT, and control components of resistance increased from RLOW to RFAULT, current through the pass element will increase, and the circuit breaker symbol will be converted to a failed State.