Design of compositive on-line monitoring and fault diagnosis system for high-voltage switch cabinet

At present, the temperature monitoring of contact terminal is not integrated into the available intelligent manipulation device for high-voltage switchboard. To develop a high-voltage switchgear comprehensive system of on-line monitoring and fault diagnosis which can measure the contactor temperature rise is very important to guarantee the normal operation of the high-voltage switchgear. Design on intelligent monitoring device, wireless temperature sensor, and power supply module is given out in this paper.