GEK-113188A
MIGII Digital Protection for Electrical Machines
2-7
2 PRODUCT DESCRIPTION
2.5 OVERCURRENT ELEMENTS
2
2.5.1.2 ANSI CURVES
Response times for ANSI curves are as follows:
For 1.05<=V<20.00, tripping time will be:
For V
20.00 tripping time will be the same as for 20.00 times the setting:
Where:
M
=Time Dial setting (set in the relay by user).
V
= I / I
pickup setting
> 1.05
2.5.1.3 IAC AND USER CURVES
2.5.1.4 USER CURVES
Response times for User curve are as follows:
For 1.05<=V<20.00, tripping time will be:
For V
20.00, tripping time will be the same as for 20.00 times the setting:Where:
CURVE NAME
A
B
C
D
E
Extremely Inverse
0.0399
0.2294
0.5000
3.0094
0.7222
Very Inverse
0.0615
0.7989
0.3400
-0.2840
4.0505
Inverse 0.0274
2.2614
0.3000
-4.1899
9.1272
PARAMETERS
A
B
P
O
K
Range
0 – 125
0-3
0-3
0-2
0-1.999
Step
0.001
0.001
0.001
0.001
0.001
Unit
Sec.
Sec.
NA
NA
Sec.
Default value
0.05
0
0.04
1
0
≤
≤
Summary of Contents for Multilin MIGII
Page 2: ......
