Short Circuit Analysis is Windows software for calculating short‑circuit currents on radial electric power distribution systems using the per‑unit method. It computes bolted three‑phase and ground faults for single‑ and three‑phase systems, scales to large studies with up to 2,000 buses and 1,500 motors, and works in metric or English units. The program includes built‑in and user‑definable X (reactance) and R (resistance) data tables, full‑screen input/editing with mouse support, and produces concise, comprehensive reports that are manually verifiable. It is menu‑driven with on‑line help and integrates with the companion Voltage Drop (V‑Drop) and Panel programs.

Key Features

Rapid short‑circuit calculations Fast fault studies.

• Quickly calculates short‑circuit currents on radial systems.
• Computes bolted three‑phase and ground faults.

Broad system coverage and scale From small panels to large models.

• Supports single‑ and three‑phase systems.
• Handles up to 2,000 buses and 1,500 motors.

Standards‑style per‑unit methodology Consistent, traceable math.

• Uses the per‑unit method of calculation.
• Works in both metric and English units.

Data libraries and customization Accurate parameters.

• References built‑in X and R values.
• User‑definable X/R data tables for custom equipment.

Usability and documentation Efficient workflow and auditability.

• Full‑screen input/editing with mouse support and on‑line help.
• Provides comprehensive, concise, manually verifiable reports; print to screen, printer, or disk.

Toolchain compatibility Smooth handoffs.

• Compatible with the V‑Drop and Panel programs for related studies.

Benefits

Faster fault studies Reduce turnaround time.

• Rapid calculations and menu‑driven workflow accelerate short‑circuit analyses.
• Large model capacity supports complex distribution systems without segmentation.

Traceable, review‑ready results Support QA/QC and approvals.

• Per‑unit calculations and concise reports are manually verifiable.
• Built‑in and user‑defined X/R data improve transparency and accuracy.

Integrated electrical design workflow Fewer tool gaps.

• Works alongside Voltage Drop and Panel tools for end‑to‑end power system checks and documentation.