Symmetrical Components (Fortescue) Visualizer
This is an interactive visualizer of the Fortescue transformation. It decomposes unbalanced three-phase voltage or current phasors into positive, negative, and zero sequence components and shows each set graphically. It is built to make the intuition behind symmetrical components clearer.
Who it is for
Protection engineers, students, and anyone learning symmetrical components and the reasoning behind fault calculations.
Inputs and outputs
- Inputs: three-phase voltage or current phasors, each with a magnitude and an angle.
- Outputs: the three sequence component sets, shown as phasors.
Typical use cases
- Understanding unbalance in three-phase systems.
- Learning how sequence components relate to phase quantities.
- Checking the intuition behind fault calculations.
What it does not do
This is an educational visualizer, not a fault study or relay settings tool. It does not replace manufacturer software, applicable standards, or engineering judgment.
Privacy: This tool runs entirely in your browser. Anything you enter is processed locally on your computer and is not uploaded to a server.
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Frequently asked questions
- What are symmetrical components?
- Symmetrical components are a method that represents an unbalanced three-phase set of phasors as the sum of three balanced sets: positive, negative, and zero sequence.
- What is the Fortescue transform?
- The Fortescue transform is the mathematical transformation that converts three-phase phasors into their positive, negative, and zero sequence components, and back again.
- What inputs does it take?
- It takes three-phase voltage or current phasors, each defined by a magnitude and an angle.
- Is this a fault study tool?
- No. It is an educational visualizer for understanding symmetrical components, not a fault study or relay settings tool.
- Is data uploaded?
- No. The tool runs entirely in your browser and nothing is uploaded to a server.
- Who is it for?
- Protection engineers, students, and anyone learning symmetrical components and the intuition behind fault calculations.
