Abstract
This paper focuses on the hardware design and implementation process of insulation condition online monitoring system. The main control circuit board of the monitoring system uses DSP+CPLD+USB as the data acquisition and control core, and the temperature rise acquisition circuit takes PIC16F877 as the control core. The paper designs the main circuit and control circuit of the whole system, and gives the flow chart of the program. In addition, combined with a solid ring network cabinet production company as the experimental platform, it debugs the insulation on-line monitoring system, and analyzes the experimental results. Finally, the monitoring system is accepted through the company, successfully implementing the on-line monitoring of insulation state.
