Displaying Fault Currents by Current Type
You can also display fault currents as symmetrical rms, asymmetrical rms or as peak. To change the display current type, on the Short Circuit tab, click 
SC Options, click the One-line Output tab, and then select the desired type in Fault Current, as shown in the figure below. The following choices are available:
- Symmetrical: rms value of AC component.
- Asymmetrical: rms value of AC and dc components combined (total).
- Max Sym and (Max Asym): The maximum phase current amongst the three phases. Both AC symmetrical rms and asymmetrical rms values are displayed, the asymmetrical values appearing in parentheses.
- Max Sym and (Max Momentary Peak): The maximum phase current amongst the three phases. Both initial AC symmetrical rms (Ik”) and peak (Ip) values are displayed, with the peak values appearing in parentheses.
The first three choices are applicable for any time interval, whereas the last choice is only applicable for the initial currents.
Figure 1: Short Circuit Options for IEC
