Abstract
This paper proposes an image processing system as detectors of tracking deterioration on the surface of organic insulating materials. The binary images for the image processing system were able to detect the trace of the deposited carbon path. It was also observed that the area of the carbon path increases as the carbon path length increases under all test voltages. In addition, the time dependence of the area for Bisphenolic based epoxy resin (EX) differs from that of Polycarbonate (PC). The EX shows a negative voltage dependence. On the other hand, the PC shows the positive one.
In order to investigate the different voltage dependences between two samples, the light pulses for the scintillation discharge were measured by the light pulse count method. It was clarified that the voltage dependence of the carbon area for each sample corresponds with the accumulated numbers of light pulse. Therefore, it is indicated that the visual image provides quatitative and real time information regarding the propagation process of the carbon path.
