ABB REG316 4 Series Operating Instructions Manual page 263

REG 316*4 1MRB520049-Uen / Rev. F
i
1,5
1,0
i = i
n
0
J
[°C]
160
140
120
J
nw
100
J
Oil
80
60
40
t
w
20
0 20
Fig. 3.5.23.1 Temperature rise of a transformer winding
J
= 100°C
nw
J
= 90°C
Oil
t
= 10 min
w
J = ¥
t ( )
w
J = ¥
t ( )
Öl
t
Oil
J J
w Oil
40 60 80
ABB Switzerland Ltd
DJ
= 60°C
nw
DJ
= 50°C
Oil
t = 120 min
Oil
J
w
J
Oil
DJ
Oil
100 120 140
t [min]
HEST 905 035 C
t
3-225