ABB 615 Series - Page 315

t/s
1000
100
500
200
50
10
20
5
1
2
3
4
30
40
300
400
2000
3000
4000
1 2 3 4 5 106 8 I/I
q
1.05
p
[%]
20
50
75
100
x
Cold
curve
GUID-B6F9E655-4FFC-4B06-841A-68DADE785BF2 V1 EN
Figure 147: The influence of Weighting factor p at prior load 1xFLC, timeconstant =
640 s, and Overload factor = 1.05
Setting the overload factor
The value of Overload factor defines the highest permissible continuous load. The
recommended value is 1.05.
1MAC059074-MB A Section 4
Protection functions
615 series ANSI 309
Technical Manual