CP TD1 Reference Manual V 1.44
48
Influence of different parameters like water content,
temperature and aging on DF
Figure 5-10 shows the breakdown voltage and the DF in oil, dependent on the
water content [2.3]. With low water content, the breakdown voltage is very
sensitive; with higher water content, the DF is a good indicator.
Figure 5-10 Breakdown voltage and DF in oil, dependent on the water
content
kV/cm
600
500
400
300
200
100
0
60
50
40
30
20
10
0
Breakdown voltage
Dissipation factor
0 20 40 60 80 100 120 140 160 180 200
Water content mg/kg
tan δ
ε
d
0
/
00
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