Electrical Engineering & Technology

23/08/2026

11/08/2026

10 Types of Relay ⚡ Learn the 10 most important types of electrical relays with their working and applications. Useful for electricians, students and interview preparation.

Overcurrent Relay, Earth Fault Relay, Differential Relay, Distance Relay, Thermal Relay, Buchholz Relay, Under Voltage Relay, Over Voltage Relay, Frequency Relay, Relay

10/08/2026

This diagram illustrates the wiring setup for
an Automatic Liquid Level Controller

09/08/2026

Stop relying on guesswork when it comes to electrical wiring

05/08/2026

🔧 Split Air Conditioner Connection Guide 🔧

A safe and correct electrical connection is the foundation of every reliable split AC installation. This wiring diagram clearly explains the connection between the indoor and outdoor units, including the power supply, breaker, isolator, grounding, and control cable.

💡 Learn the wiring sequence, follow electrical safety standards, and ensure a professional installation every time.

📌 Save this guide for future reference and share it with fellow HVAC technicians!

05/08/2026

KBPC2510 Bridge Rectifier Pinout, Wiring Diagram & Working Principle | AC to DC Conversion

The KBPC2510 bridge rectifier is a high-current, full-wave rectifier designed to convert alternating current (AC) into direct current (DC). Instead of using four separate rectifier diodes, this single package combines all four internally, making power supply circuits simpler, cleaner, and more reliable.

As shown in the image, the bridge rectifier has four terminals. The two terminals marked AC (~) accept the alternating current input. The positive (+) and negative (−) terminals provide the rectified DC output for powering electronic circuits.

Inside the package, four diodes are connected in a bridge configuration. During the positive half-cycle of the AC waveform, one pair of diodes conducts. During the negative half-cycle, the other pair takes over. This arrangement keeps current flowing through the load in the same direction at all times, producing full-wave rectified DC with better efficiency than a half-wave rectifier.

The bottom schematic illustrates the internal diode bridge connection and current path. This design is widely used in TV repair, SMPS power supplies, battery chargers, audio amplifiers, inverters, industrial equipment, and many other AC-to-DC power conversion applications.

03/08/2026

🔧 Compressor Overload Protector Explained!

Understanding the internal parts of a compressor overload protector is essential for every refrigeration and HVAC technician. This guide shows the key components, terminal connections, and common HP-to-watt ratings to help you identify and troubleshoot overload protectors with confidence.

💡 Save this post for future reference and share it with fellow technicians!

02/08/2026

Colour coding of wires