Short Circuit Software


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Short Circuit Software - IEC


ETAP Short Circuit calculation software complies with IEC standards including IEC 60909 and IEC 61363.


Short Circuit Analysis Software - IEC Key Features


  • 1-pole / 2-pole short circuit device duty for single-phase panel / UPS systems
  • Unbalanced L-G, L-L, & L-L-G fault current analysis
  • Short circuit study calculations based on IEC 60909, 60282, 60781 & 60947
  • Transient short circuit calculations using IEC 61363
  • Compares protective device ratings with calculated short circuit values
  • User-definable voltage C factor
  • Service or ultimate short circuit current ratings for LVCB breaking capability
  • User-definable R/X adjustment methods for Ip (method A, B, or C)
  • Phase-shifting transformers
  • Negative or positive impedance adjustments for max/min I"k & Ik
    • Network Analysis Short Circuit Analysis Software Short Circuit Analysis Software IEC
    Short Circuit Calculation Software IEC Toolbar
  • Automatic application of K correction factors (i.e., KT, KG, KSO)
  • Automatically determines meshed & non-meshed networks for calculating Ib, Ik, & Idc
  • Ib for meshed network is adjusted by individual machine contributions for improved accuracy
  • Considers both near & far short circuit current from generators
  • Generates relay test set compatible plots for transient short circuits
  • Detailed IEC device duty reports & complete contributions for unbalanced faults
  • Integrates with protective device coordination
  • Load terminal short circuit calculation


IEC Short Circuit Software - Standards


IEC 62271-100 High-Voltage Switchgear and Controlgear, Part 100:High-Voltage Alternating-Current Circuit Breakers


IEC 62271-200 High-Voltage Switchgear and Controlgear, Part 200: AC Metal-Enclosed Switchgear and Controlgear for Rated Voltages
Above 1 kV and up to and including 52 kV


IEC 62271-203 High-Voltage Switchgear and Controlgear, Part 203: Gas-Insulated Metal-Enclosed Switchgear for Rated Voltages Above 52 kV


IEC 60282-2 High-Voltage Fuses, Part 2: Expulsion Fuses


IEC 60909-0 Short Circuit Currents in Three-Phase AC Systems, Part 0: Calculation of Currents (including 2002 Corrigendum 1)


IEC 60909-1 Short Circuit Currents in Three-Phase AC Systems, Part 1: Factors for the Calculation of Short Circuit Currents According to IEC 60909-0


IEC 60909-2 Electrical Equipment – Data for Short Circuit Current Calculations in Accordance with IEC 909 (1988)


IEC 60909-4 Short Circuit Currents in Three-Phase AC Systems, Part 4: Examples for the Calculation of Short Circuit Currents


IEC 60947-1 Low Voltage Switchgear and Controlgear, Part 1: General Rules


IEC 60947-2 Low Voltage Switchgear and Controlgear, Part 2: Circuit Breakers


IEC 61363-1 Electrical Installations of Ships and Mobile and Fixed Offshore Units, Part 1: Procedures for Calculating Short Circuit Currents in Three-Phase AC


IEC 60781 Application guide for calculation of short circuit currents in low-voltage radial systems