ABB RELION 620 Series Technical Manual page 403

1MAC504801-IB E
620 series ANSI
Technical Manual
GUID-5CB18A7C-54FC-4836-9049-0CE926F35ADF V1 EN
Figure 182: Trip curves at prior load 1 x FLC and p=50 %. Overload factor = 1.05.
Tau [s]
3840
1920
960
640
480
320
80 160
Section 4
Protection functions
397