Development of on-line monitoring system for SF6 circuit breaker
As a good insulating medium, SF6 has been widely used in high voltage circuit breaker, and its state is critical to the system stability. Aiming at the shortcomings of traditional measurement of the state of SF6 gas, we propose a new system design, which divides the whole system into three parts: data acquisition unit, data concentrators and monitoring software. And ZigBee wireless net and Ethernet communication are used to achieve real-time monitoring of SF6 circuit breaker. Meanwhile, by using Configuration Software, the system constructs the user-friendly interface and database to display and manage the data of SF6 gas state, which are used for the more effective evaluation of the running state of the circuit breaker.