GUID-E7269B2F-83FE-4385-8374-8F8C06D4CC0B V1 EN
Figure 353: Short circuit current waveform, fault occurs at time 0 seconds (Current
setting limit is multiplied by the square root of 2)
The phase voltage in a three-phase short circuit when a fault occurs at time = 0 s is shown
in
Figure 354. The voltage drop caused by a three-phase fault provides more time for
determining the fault by means of an underimpedance protection.
1MAC059074-MB A Section 4
Protection functions
615 series ANSI 711
Technical Manual
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