Research and realization of on-line monitoring system for high voltage circuit breaker based on ZigBee technology

Through designing a terminal device based on the AVR microprocessor, this paper proposes an approach to realize the on-line monitoring control to replace with conventional preventive maintenance. In addition, the mechanism of data transmission is designed also in the terminal device. Aiming at the shortcoming of additional cable that is difficultly lain down in transformer substation, a kind of wireless terminal device is also designed based on JN5121-M02 from Jennic Company. Finally, a control software is developed under the programming environment VC++6.0, so that the system can realize the on-line monitoring control. The designs of hardware and software are discussed in detail in the paper. The system can exchange the data with control center through ZigBee wireless network, so workers can visit the terminal devices in control center. Test results indicate that it is a good solution.