Allen-Bradley 140MG-H E Manual De Instrucciones página 6

6 Trip Unit Protection Settings Adjustment for 140G-H, 140G-J, 140MG-H, 140MG-J
8
DIP LIU Settings
Example:
In = 100 A
I1 = 100 x (0.4+0.08+0.32)= 80A
CLASS = 3E@(7.2xI1)=2s<ti<3s@576A(7.2Ax80)
3E 2s<ti<3s
5E 3s<ti<5s @ (7.2 x I1)
10E 5s<ti<10s
20E 10s<ti<20s
t
L
CLASS
U
I
I1 I3
U = ON
{
I6=
t6 = 2s
Publication 140G-IN100E-EN-P - November 2020
1
2
t
I
L
CLASS
U
t6
I
I
I6 I1
I3
min (L1, L2, L3) < 0.1In
and
max (L1, L2, L3) > 0.5 I1
Default setting
Settaggio di default
Default-Einstellung
Conguration par défauit
Ajuste de default
Example:
In=100 A
I3 =100 x (6+1+2)=900A
t
M-LIU
U
DIR 1000721R0506 (Version 04)
L
CLASS
I
I
I1 I3