Protection learning studio

Switchgear and Protection Virtual Laboratory

Government Polytechnic Bhuj · Electrical Engineering Department · Diploma Semester 5

GTU DI05009011w.e.f. 2026–2711 Practicals · 12 Activities

Interactive trainer Terminal-aware wiring Progress saved on device

Objective

Learning outcome

Apparatus and ratings

EquipmentSuggested rating

Method

    Safety and good practice

    Complete protected power system — fully wired reference

    Every shown device is connected: primary power, CT/PT measurement, relay output and breaker trip paths all terminate at visible equipment terminals.

    Completed reference wiring — follow each colored line terminal to terminal
    Primary powerCT / PT signalTrip command

    Dedicated textbook circuit for this activity

    All 12 activities have their own circuit—not a shared generic drawing—with standard symbols, named terminals, individually numbered conductors, distinct wire styles and separated routes.

    12 activity-specific circuits
    Your browser does not support the circuit drawing.

    Detailed test and terminal wiring

    Use this terminal-level drawing to build the practical circuit below.

    Accessible terminal-to-terminal connection list

    The upper drawing explains the complete protected installation. The lower drawing shows one correct practical connection; equivalent wire routing that preserves the same electrical nodes is accepted in Build & Wire.

    Wiring mode:
    Guided mode prevents incorrect connections.

    Theory

    Operating principle and equations

    Live protected-system sequence

    Click a highlighted protected item to place the test or fault

    Live voltage and current waveforms

    Live phasors

    VERIFIED LIVE TRAINERSupply isolated

    Instrument settings

    Apply testOperate the apparatus and observe the live instruments.
    Build and successfully check the circuit to unlock this live experiment.

    The live apparatus is enabled only after the terminal wiring in Build & Wire passes validation. Changing any connection locks and isolates it again.

    Live indications

    Result / conclusion

    Perform the experiment and add observations to generate a conclusion.

    Interactive viva practice