ABB RELION 620 Series Technical Manual page 840

Section 12
General function block features
12.2.1.1
834
GUID-B1F693FA-DC13-4DFC-81F3-A47FF082492B V1 EN
Figure 428: Trip time curves based on IDMT characteristic with the value of the
Minimum trip time setting = 1 second
Standard inverse-time characteristics
For inverse-time operation, both IEC and ANSI/IEEE standardized inverse-time
characteristics are supported.
1MAC504801-IB E
620 series ANSI
Technical Manual