ZigBee Based Wireless Temperature Monitoring System of High-voltage Switchgear

The high voltage switchgears are playing an important role in the electric power system, but in the long operation, the switch contact tends to become overheating because of its closed and narrow space. Obviously, it will cause the system to malfunction without timely resolution. What's worse, this situation probably result in fearful accidents which will pose a threat to people's lives. Therefore, according to the characteristics of high voltage switch cabinets, this paper designs a wireless temperature monitoring system for high voltage switches. Moreover, considering the problem of high voltage insulation, the ZigBee communication chip CC2530 and the digital temperature sensor DS18B20 which are used to realize the real-time and on-line temperature monitoring are selected to perform the functions of collecting temperature and transmitting information respectively. To some extend, this system improves the efficiency and accuracy of the monitoring, meanwhile, it saves human resources and can make the electric power system run safely and reliably. (paper)