VAMP 150 - Page 37

VAMP Ltd
Motor protection relay
Technical Description
VAMP 150
VM150.EN005 Vamp 24h support phone : +358 (0)20 753 3264
9
Figure 2.2.1-3. Normal Inverse (IEC 60255-3) characteristic.
[ ]
1)(
14,0
02,0
−
>
⋅=
I
I
k
st
Figure 2.2.1-4. Very Inverse (IEC 60255-3) characteristic.
[ ]
1)(
5,13
−
>
⋅=
I
I
k
st