ABB RELION 620 Series Technical Manual page 284

Section 4
Protection functions
278
GUID-EE729648-3D09-4EBE-B662-80E59DA7C0A4-ANSI V2 EN
Figure 127: Behavior of different IDMT reset modes. The value for Type of reset
curve is "Def time reset". Also other reset modes are presented for the
time integrator.
The Time multiplier setting is used for scaling the IDMT trip times.
The Minimum trip time setting parameter defines the minimum desired trip time for
IDMT. The setting is applicable only when the IDMT curves are used.
The Minimum trip time setting should be used with care because the
operation time is according to the IDMT curve, but always at least the
value of the Minimum trip time setting. For more information, see the
IDMT curves for overcurrent protection
1MAC504801-IB E
section in this manual.
620 series ANSI
Technical Manual