Study on the Fractal Dimension and Growth Time of the Electrical Treeing Degradation at Different Temperature and Moisture

Figure 12

Superimposed red-white-black images of PD light and tree images with a same red and white light level: (a) a low-density tree with fast growth time, (b) a medium-density tree with medium growth time, (c) a high-density tree with slow growth time.

(a)

(b)

(c)