Study on the Relationship between Electrical Tree Development and Partial Discharge of XLPE Cables

Figure 4

Deterioration process of the entire cable insulation of 35 kV cable: (a) starting, (b) 12 hours later, (c) 22 hours later, (d) 37 hours later, (e) 48 hours later, (f) breakdown.

(a)

(b)

(c)

(d)

(e)

(f)