Three-Phase Circuit Calculation Software

Theoretical Fundamentals of Electrical Engineering. Fundamentals of Circuit Theory.
Three-phase electrical circuit calculation. Complex number method. Plotting phasor diagrams
Three Phase Circuits 3.55
Three Phase Circuits 3.55 (TPC 3.55) is designed for the calculation of three-phase electrical circuits in any configuration, including Y/Y, Y/Δ, Δ/Y, and Δ/Δ.
The software generates a detailed step-by-step solution with a report exportable to MS Word (.docx).
The built-in utilities in TPC 3.55 allow users to:
  • Calculate complex line and phase impedances;
  • Plot voltage and current phasor diagrams.
Settings in TPC 3.55 enable the display of circuit element symbols in compliance with both regional and international standards, such as IEC and ANSI. To facilitate diagram construction, TPC 3.55 features a built-in vector (phasor) editor with a wide range of capabilities and an intuitive interface.
The TPC 3.55 program is fully translated into 11 languages:
English, German, French, Spanish, Portuguese, Turkish, Arabic, Chinese, Hindi, Bengali, and Japanese.

  • TPC Versions

    Demo Version

    The demo version is free, but has the following functional limitations: Step-by-step calculations are only performed for three-phase circuits with active symmetrical loads. Partial calculations are available for all other three-phase circuits.
    The demo version provides calculation results for the following key three-phase circuit parameters:

    • Complex phase and line currents;
    • Complex phase and line voltages;
    • Complex apparent load power;-
    • Complex apparent power of the three-phase system.
    The demo version has limited access to some vector editor functions.

    For example:
    Available:
    • "AUTO diagram" plot mode;
    Unavailable:
    • "My diagram" plot mode;
    • Vector operations.

    Licensed Version

    The licensed version performs a full detailed calculation for all types of three-phase circuits with any load type, including fault conditions such as:
    • Phase short circuits
    • Line wire breaks
    To use the licensed version, you must purchase an activation code (license key). The activation code is valid for two months from the date it is provided. The licensed version requires an internet connection to verify the current date, as the activation code has time-based restrictions.
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  • Benefits of TPC

    • TPC is an educational program designed to help you quickly master the methods of three-phase electrical circuit calculation.
    • TPC generates a detailed, step-by-step calculation of a three-phase circuit, computing all key parameters:
    1. Line and phase currents;
    2. Line and phase voltages;
    3. Load phase power and total power;
    4. Reports are generated in MS Word (.docx) format.
    • TPC includes built in utilities for:
    1. Calculating line/phase impedances;
    2. Constructing vector (phasor) diagrams with extensive customization options.
    • The TPC vector diagram editor contains a large set of tools that allow you to design a vector diagram according to your preferences.
    • TPC creates reports in .docx format, ensuring compatibility with popular editors such as MS Word (.docx), OpenOffice Writer (.odt), WPS Writer (.odt), and Google Docs (.docx).
    • The TPC program is fully translated into 11 languages: English, German, French, Spanish, Portuguese, Turkish, Arabic, Chinese, Hindi, Bengali, and Japanese.
    • TPC maximizes time efficiency when formatting calculation documents and reports.
    • Element Notation System - TPC 3.55 Settings Section allows the user to customize the circuit element notations according to a national or regional standard.
    • TPC can help students prepare for their coursework defenses as well as the electrical engineering exam.
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  • TPC System Requirements

    TPC 3.55 is designed for Windows. Microsoft Word is used to display step-by-step calculations. The supported versions of Windows and MS Word for TPC 3.55 are listed below.

    Operating System:
    Windows 7, 8, 10, 11 and later versions
    Text Editor:
    Microsoft Word 2007-2024 and later versions
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    Help & Resources

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    TPC User Online Manual


    Tutorial videos on using the program:


    Three-phase circuit calculation in TPC 3.55


    Three-phase star-star circuit calculation in TPC 3.55


    Three-phase star-delta circuit calculation in TPC 3.55

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    Download and activate Three Phase Circuits (TPC 3.55):

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    Download TPC 3.55


    Buy TPC 3.55 activation code


    Buy TPC 3.55 activation code on Plati.Market

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Download test models of three-phase circuits and check your calculations

We have developed virtual models of three-phase circuits with the following configurations: Y/Y, Y/Δ, Δ/Y, Δ/Δ, which contain virtual instruments for measuring key parameters in real time.


Download NI Multisim three-phase circuit models

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