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Electrical projects

Power, control and energy-focused ideas.

Automatic Transfer Switch Trainer for Mains–Generator Changeover — project thumbnail preview
Built to order

Automatic Transfer Switch Trainer for Mains–Generator Changeover

This project builds a bench-top Automatic Transfer Switch (ATS) trainer that demonstrates how buildings switch between mains...

Power contactors Interlocking design Timer relays
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Automatic Voltage Guard for Home Appliances — project thumbnail preview
Built to order

Automatic Voltage Guard for Home Appliances

Mains voltage in many areas swings far outside the safe band — dips that stall refrigerator compressors, surges that kill TV...

Arduino Nano C/C++ firmware Isolated AC voltage sensor
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Battery Swapping Station Model with Safety Interlocks — project thumbnail preview
Built to order

Battery Swapping Station Model with Safety Interlocks

This project builds a tabletop model of an EV battery swapping station: a multi-slot rack holds scaled battery packs, an RFID...

Arduino controller · relay driver stage RFID-RC522 reader · authorized swap access Solenoid slot locks · interlocked release logic
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BLDC Ceiling Fan Demo with Remote Control — project thumbnail preview
Built to order

BLDC Ceiling Fan Demo with Remote Control

This project demonstrates a remote-controlled BLDC ceiling-fan drive at bench scale: a brushless DC motor with fan blades is...

Arduino Uno PWM speed control BLDC motor · ESC driver
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Buchholz Relay Demonstration Model for Transformer Protection — project thumbnail preview
Built to order

Buchholz Relay Demonstration Model for Transformer Protection

This project builds a demonstration model of a Buchholz relay — the gas-actuated protection fitted to oil-immersed transforme...

Buchholz relay Transformer protection Float-switch mechanism
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Cable Fault Locator using Murray Loop Principle — project thumbnail preview
Built to order

Cable Fault Locator using Murray Loop Principle

This project builds a working Murray loop bridge that locates short-circuit and earth faults in underground power cables. The...

Murray loop method Wheatstone bridge Analog galvanometer
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Capacitive Touch Dimmer Panel for Home Lighting — project thumbnail preview
Built to order

Capacitive Touch Dimmer Panel for Home Lighting

This project builds a capacitive touch dimmer panel that controls a 230V lamp load with nothing but fingertip taps — no knobs...

Arduino Nano TTP223 capacitive touch sensor BT136 triac · MOC3021 optocoupler
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Capacitor Bank Health Monitor with Dashboard — project thumbnail preview
Built to order

Capacitor Bank Health Monitor with Dashboard

This project watches the health of a power-factor-correction capacitor bank stage by stage, instead of discovering failures o...

ESP32 Web Dashboard Arduino IDE
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Five-level cascaded H-bridge multilevel inverter with MOSFET boards and heatsinks — project thumbnail preview
Built to order

Cascaded H-Bridge Multilevel Inverter (Five-Level)

A single-phase five-level cascaded H-bridge inverter built as a low-voltage lab prototype. Two MOSFET H-bridge modules, each...

Cascaded H-bridge topology · five-level staircase synthesis Power MOSFETs · aluminium heatsinks Opto-isolated gate drivers · dead-time control
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Electrical guides

All guides

Transformer Basics: Turns Ratio Explained

V1/V2 = N1/N2 is just the start. This guide covers the current and impedance-square laws, why real transformers read high on no load, inrush current sizing, tap changers, Dyn11 connections, CT safety, and four worked examples from power-supply selection to impedance reflection.

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Solar Inverter Types Compared

Grid-tie, off-grid or hybrid? String, micro or optimizers? This guide compares every solar inverter architecture, works through DC/AC ratio sizing, the cold-morning Voc safety check, battery sizing for hybrids, efficiency definitions, and the selection mistakes that kill projects.

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Overload Relay Settings: A Practical Guide

That little dial below the contactor is a thermal model of your motor. This guide covers the FLC setting rule, the 0.58× correction for star-delta, CT-operated settings, trip classes matched to starting time, phase-loss sensitivity, and how to tell nuisance trips from real overloads.

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Lightning Protection Basics

Lightning kills equipment through surges, not just direct strikes. This guide explains the four-layer protection system — air termination, down-conductors, earth termination and SPDs — with selection ratings, a rooftop solar worked example, bonding rules and the standards to cite.

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Harmonics in Power Systems: Causes and Fixes

VFDs, UPS and LED drivers distort the mains sine wave — overheating neutrals, killing capacitors and failing audits. This guide explains harmonic generation, THD measurement against IEEE 519, the five damage mechanisms, and fixes from line reactors to active harmonic filters, with worked examples.

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Energy Meter Types Explained

What does a utility meter actually measure — and why do industries pay for kVAh instead of kWh? This guide covers induction vs electronic meters, accuracy classes, CT-operated metering with a worked multiplying-factor example, smart and net metering, maximum demand, and safe metering practices.

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Frequently Asked Questions

Are these safe to demonstrate in college?

Yes — builds are designed at safe, demonstrable scale with fuses and isolation where needed. Anything requiring grid connection is done through standard, safe interfaces.

Do I get the circuit diagrams?

Yes — schematics, component list with exact ratings, and the working explanation are standard.

Can you build a solar or power-monitoring project?

Yes, several listings cover solar charge monitoring, energy metering and power factor correction. Custom specs can be quoted.

What is the delivery time?

Typically 2–4 weeks for built-to-order electrical projects, confirmed in your quotation.

About Electrical projects

Electrical final-year projects are judged on whether the system is safe, correct, and properly engineered — not on how futuristic it sounds. Reviewers in this branch will ask about ratings, protection, and standards before they ask about features. A project that switches real loads, measures real quantities, or automates a real process, with the calculations to back it up, will always beat a simulation-only concept with bigger claims.

What Electrical students usually build

Three families dominate. Power systems and monitoring projects are the most natural fit: an IoT Transformer Health Monitoring setup that tracks temperature, oil level, and load parameters, or an Automatic Power Factor Correction System that switches capacitor banks based on measured power factor. These are strong because the theory maps directly onto the hardware — you can show the calculations and then show the readings. The second family is automation: a PLC-Based Automatic Bottle Filling Plant is the classic example, and PLC work remains genuinely valued because it mirrors industrial practice. The third family is wireless monitoring of electrical infrastructure, like the LoRaWAN Structural Health Monitoring System, where long-range, low-power communication meets real sensing. Whatever family you choose, include the electrical fundamentals: load calculations, component ratings, protection devices, and earthing. Skipping them is the fastest way to lose marks.

Technologies and tools worth learning

Learn to size things properly: cable ratings, contactor and relay selection, fuse and MCB coordination, and transformer basics. For control, PLCs and ladder logic are worth learning even if your project uses a microcontroller, because the mental model of industrial control transfers directly. When a project needs connectivity, the microcontroller comparison in ESP32 vs Arduino vs Raspberry Pi: Which Is Best for Final-Year IoT Projects helps you pick the right board for the job rather than the most familiar one. Power supply design deserves its own attention — most student hardware failures trace back to inadequate or noisy power, and How to Power Your IoT Project: Batteries, Adapters and Regulators Explained covers exactly the mistakes to avoid. Learn to use a clamp meter and understand what your measurements mean; a reading you cannot interpret is just a number.

Software vs hardware in electrical projects

These projects are hardware-first by nature, and that is correct for the branch. The software — whether it is PLC ladder logic, microcontroller firmware, or a monitoring dashboard — exists to control and observe the electrical system, not to be the project. Keep that hierarchy clear in your report and your demo: lead with the electrical design, then show how the control layer operates it. Simulations have a place — MATLAB/Simulink or Proteus for validating a design before building — but a simulation alone is rarely enough for a final-year project in this branch. Reviewers want to see something that switches, measures, or moves. If higher voltages are involved, design the demo so it can be shown safely at low voltage or with proper isolation, and say so explicitly. Safety consciousness is graded.

Choosing scope wisely

Electrical projects carry real costs in components — contactors, transformers, sensors, and enclosures add up — so finalize the bill of materials early and price it before committing. Higher-power work also carries real risk: design within what you can build and test safely in your lab, and get faculty sign-off on anything above low voltage. A team of three to four works well with clear roles: power and wiring, control logic, and measurements plus documentation. Order long-lead items first; a transformer or a specific PLC module with a multi-week delivery time will wreck a schedule planned around ideal availability. Build and test in stages — power supply first, then control, then the full system — because debugging a fully assembled panel with an unknown fault is miserable. Document ratings and test readings as you go; they become the strongest pages of your report.

A note on how Projectech helps

Projectech builds these projects to order, with proper component selection, wiring, and documentation, plus an explanation of the design decisions so you can answer questions on ratings, protection, and working. If your department requires specific standards or your lab has equipment constraints, the build can be planned around them.

Have a different idea? Request a custom project