The Research and Application on the Intelligent Control System of the GIS Circuit Breaker

This paper proposes an intelligent and digital improvement scheme for the GIS circuit breaker. Based on the concept of the integration of the primary and secondary system, the control system of the circuit breaker is reconstructed by the digital device. The conditional secondary control loop based on the cable and relay is integrated by the circuit. The protection function, including the three-phase inconsistency, breaker anti-jump, and over-current of the storage motor, is carried out by the software. The condition monitor, remote operation, and interlock are realized by the digital device and the intelligent substation network.