MM-13- rev 01-EN
30
0.01
0.1
1
10
100
1000
0
10
20
30
40
50
60
70
80
90
100
110
120
Windings temperature °C
C
o
ef
fi
c
ien
t K
Even if the insulation system used for the machine windings allows their correct live operation also
with insulation resistance values equal to 1/10 of those prescribed previously, it is advisable not to
allow the insulation resistance to fall below the recommended values.
The variation through the time of the insulation resistance during application of the test voltage
supplies an additional indication of the insulation conditions.
