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Electrical Engineering Toolkit

Fast educational calculations for learning, design exercises and simulator work. Always verify real installations against current standards, installation conditions and manufacturer data.

Ohm's Law

Voltage U (V)Current I (A)Resistance R (Ω)

R = 100 Ω

Power

Voltage (V)Current (A)

P = 460 W

Voltage Drop

Current (A)Length one-way (m)Area (mm²)Conductor resistivity coefficient (Ω·mm²/m)Supply voltage (V)

ΔU = 4.67 V

3-Phase Power

Line voltage (V)Current (A)Power factor cosφ

P ≈ 5.54 kW

Cable Exercise

Load current (A)Length one-way (m)Voltage (V)Allowed drop (%)

Minimum area exercise: 2.5 mm² (check installation method)

Protection Exercise

Design current Ib (A)Breaker In (A)Cable Iz (A)

Ib ≤ In ≤ Iz → PASS

Motor Current

Mechanical power (kW)Voltage (V)Efficiency ηcosφ

I ≈ 8.06 A

CONNECTED TECHNICAL WORKSPACES

Specialist Workspaces

Open the dedicated working module for each task. These links reuse the existing VoltPRo tools rather than creating duplicate implementations.

01 / DESIGNCircuit Design & Wiring

Build, wire, inspect, run, save and export circuits in the Simulator.

Open Simulator ↗ 02 / ELECTRONICSColor / LED Lab

Explore HEX, RGB, HSL, contrast, PWM channels and LED resistor sizing.

Open Color / LED Lab ↗ 03 / WIRINGCable Voltage-Drop Lab

Estimate voltage drop and compare conductor scenarios with stated assumptions.

Open Wire Lab ↗ 04 / DIAGNOSISFault Lab

Investigate symptoms, measurement points and safety-first fault explanations.

Open Fault Lab ↗ 05 / PRACTICETechnical Challenges

Practise with parameterised engineering questions, hints and worked solutions.

Open Challenges ↗ 06 / EXPLOREDemo Circuits

Choose an editable starter circuit and transfer it into the Simulator.

Browse Demo Circuits ↗ 07 / LEARNGuided Tutorials

Follow a concept-to-practice path and apply each lesson in the right tool.

Open Tutorials ↗ 08 / REFERENCEElectrical Tool Index

Search the curated catalogue of electrical, electronics and automation tools.

Browse Tool Index ↗

Important: Cable sizing and protection selection are not determined by current alone. Installation method, ambient temperature, grouping, conductor material, permissible voltage drop, protective-device characteristics and applicable national rules must be evaluated.