GUID-9BFD6DC5-08B5-4755-A899-DF5ED26E75F6 V1 EN
Figure 429: Example of how the inverse time characteristic is leveled out with
currents over 50 x In and the Setting Start value setting “2.5 x In”.
(the IDMT Sat point setting is set to maximum and the Minimum
operate time setting is set to minimum).
The grey zone in Figure 429 shows the behavior of the curve in case the measured
current is outside the guaranteed measuring range. Also, the maximum measured
current of 50 x In gives the leveling-out point 50/2.5 = 20 x I/I>.
11.2.1.1 Standard inverse-time characteristics
For inverse-time operation, both IEC and ANSI/IEEE standardized inverse-time
characteristics are supported.
Section 11 1YHT530004D05 D
General function block features
798 615 series
Technical Manual
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