A shunt circuitbreaker division off state detection circuitry for switch board

• Main Authors: WANG ZEQIANG, ZHAO CHUNDE
• Format: Patent
• Language: Chinese; English
• Published: 25.01.2017
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The utility model provides a shunt circuitbreaker division off state detection circuitry for switch board, includes AC input mouth, optical coupling isolator, data signal output port, AC input antilinear resistance R1 connects optical coupling isolator's input anodal, optical coupling isolator's output end positive electrode hold through resistance R2 power connection, optical coupling isolator's input negative pole connects interchange zero line, output end of cathode ground connection, data signal output port meets optical coupling isolator's output end positive electrode, the output of each shunt circuitbreaker is connected to the AC input mouth for input alternating current signal, data signal output port connect the singlechip for judge current circuit breaker and open off state. The utility model discloses a realization mode that the circuit detected has replaced the mode of using the circuit breaker dry contact to detect, has saved a large amount of costs, and the circuit is simple moreover, can realiz