Omicron CP TD1 - Page 106

CP TD1 Reference Manual V 1.44
106
Limits for RBP Bushings
Figure 7-13 Limits for RBP bushings
Limits of Tan Delta
Figure 7-14 RBP bushings - Limits of Tan Delta
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34
Years of operation time under oil
Low High Limit
TanDelta x 10
-2
0.50
0.45
0.40
0.35
0.30
0.25
0.20
TanDelta x 10
-2
0 5 10 15 20 25 30
Years
Resin Impregnated Paper (RIP) Oil Impregnated Paper (OIP)