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This article describes how to use EasyPower to calculate short circuit current for single-phase tap-off transformers attached to a 3-phase system.

This topic provides steps to calculate arc flash incident energy in EasyPower using IEC short circuit currents.

This article illustrates how to calculate the size of a current-limiting reactor using calculated fault current.

EasyPower applies impedance correction factors in short circuit calculations based on the IEC-60909-0 standard.

Differential relays are not explicitly modeled in EasyPower, but you can use the method described below to include differential functionality for arc flash hazard calculations. The arc flash module automatically calculates trip times for device functions ...

EasyPower considers the source impedance when performing a short circuit analysis.

This article provides step-by-step guidance on how to model impedance grounding at the bus in EasyPower using zig-zag transformers.

For two winding transformers, EasyPower supports phase shifts of 30, 90, 150, 210, 270, and 330 degrees [as per IEC 60076-1 p. 35-37]. IEC uses a “clock number notation” system. In that system, 1,3,5,7,9 and 11 correspond to 30, 90, 150, 210, 270 and 330 ...

A comparison of the different methods of calculating peak currents.