ABB RED615 Technical Manual page 475

1YHT530004D05 D
615 series
Technical Manual
GUID-504A5E09-8D82-4B57-9B3A-2BAE7F84FC0D V2 EN
Figure 250: 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 operate times.
The Minimum operate time setting parameter defines the minimum desired operate
time for IDMT. The setting is applicable only when the IDMT curves are used.
The Minimum operate 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 operate time setting. For
more information, see the
section in this manual.
Protection functions
IDMT curves for overvoltage protection
Section 4
469