Power System Fault-Level Analyzer (Symmetrical Short-Circuit)
Review a simplified symmetrical fault-current calculation with the key assumptions visible before using the result for further engineering work.
What this utility does
The Fault Level Analyzer provides a simplified symmetrical fault-current reference using the system parameters entered by the user and frames the calculation as an IEC 60909 reference rather than a complete study.
How to use
- Enter the source, transformer, voltage, and impedance information requested.
- Review the calculated fault level and the assumptions behind it.
- Validate the network model and equipment data as part of the actual short-circuit study.
Practical notes
- A real network may contain multiple sources, operating states, motors, generators, and other effects that require a complete study model.
- Do not use a simplified result alone to approve breaker interrupting ratings or protection settings.