Time Over-Current Characteristic Curve Graphs - Allen-Bradley 1407-CGCM-DLR User Manual

Appendix A Time Over-current Characteristic Curves
Table 35 - 51P and 51N Time Characteristic Curve Constants
Curve Curve Name
Selection
1 S, Short Inverse
2 S2, Short Inverse
3 L1, Long Inverse
4 L2, Long Inverse
5 D, Definite Time
6 M, Moderately Inverse
7 I, Inverse Time
8 Inverse Time
9 V, Very Inverse
10 V2, Very Inverse
11 Extremely Inverse
12 E2, Extremely Inverse
13 Standard Inverse
14
B, Very Inverse (I
15
Extremely Inverse (I
16
Long Time Inverse (I
17 Fixed Time
Time Over-current
Characteristic Curve
Graphs
178
Trip Characteristic Constants
A
0.2663
0.0286
5.6143
2.3955
0.4797
0.3022
8.9341
0.2747
5.4678
4.4309
7.7624
4.9883
0.01414
2 1.4636
t)
2 8.2506
t)
2 12.1212
t)
0.0000
The following illustrations show the characteristic curves of the CGCM-DLR.
Equivalent time dial settings were calculated at a value of five times pickup.
The Characteristic Curve Cross-reference
existing electromechanical relay characteristics.
Rockwell Automation Publication 1407-UM002B-EN-P - February 2019
B C N
0.03393 1.000 1.2969
0.02080 1.000 0.9844
2.18592 1.000 1.000
0.00000 1.000 0.3125
0.21359 1.000 1.5625
0.12840 1.000 0.5000
0.17966 1.000 2.0938
0.10426 1.000 0.4375
0.10814 1.000 2.0469
0.09910 1.000 1.9531
0.02758 1.000 2.0938
0.01290 1.000 2.0469
0.00000 1.000 0.0200
0.00000 1.000 1.0469
0.00000 1.000 2.0469
0.00000 1.000 1.0000
1.00000 1.000 0.0000
table cross-references each curve to
Reset
K R
0.028 0.5000
0.028 0.0940
0.028 15.750
0.028 7.8001
0.028 0.8750
0.028 1.7500
0.028 9.0000
0.028 0.8868
0.028 5.5000
0.028 5.8231
0.028 7.7500
0.028 4.7742
0.028 2.0000
0.028 3.2500
0.028 8.0000
0.028 29.0000
0.028 1.0000