Author: Abdul Wassay

Abdul Wassay is an Electrical Engineer with over 15 years of hands-on experience in PLC programming, SCADA systems, industrial automation, electrical troubleshooting, and renewable energy design. He publishes standards-based calculators, tool guides and product reviews on Azad Circuit Hub, citing NEC, IEC, and IEEE codes where applicable. Read Abdul's full Profile and Credentials here →

Microcontrollers
Getting Started with Arduino IDE ESP32: A Complete Guide for Beginners and Developers
Posted on03/05/202517/10/2026
The Arduino IDE ESP32 setup is the go-to choice for many…
Read More Getting Started with Arduino IDE ESP32: A Complete Guide for Beginners and Developers
Relays
High Impedance Differential Protection Calculation: Formula, Steps, and Example
Posted on03/05/202531/08/2026
Learn High Impedance Differential Protection Calculation with formulas, relay settings, CT selection, stability checks, and a practical example.
Read More High Impedance Differential Protection Calculation: Formula, Steps, and Example
Relays
Differential Relay in Transformer: Working, Protection, Types, and Settings
Posted on03/05/202531/08/2026
Learn Differential Relay in Transformer working, protection, types, settings, relay operation, fault detection, and transformer differential protection.
Read More Differential Relay in Transformer: Working, Protection, Types, and Settings
Blog | Transformers
Differential Relay Setting Calculation for Transformer
Posted on03/05/202524/01/2026
Differential relay setting calculation for transformer is a critical aspect of…
Read More Differential Relay Setting Calculation for Transformer
Pumps and Motors
Overload Setting for 3-Phase Motor
Posted on03/05/202521/10/2026
Setting the correct overload setting for 3-phase motor is crucial. It…
Read More Overload Setting for 3-Phase Motor
Pumps and Motors
Motor Overload Setting Table: 3 Phase Chart & Complete Guide
Posted on03/05/202521/10/2026
Motor overload setting table for 3 phase motors — complete chart, sizing guide, and free PDF download for quick relay setting reference.
Read More Motor Overload Setting Table: 3 Phase Chart & Complete Guide
Electric Vehicles | Blog
7kW EV Charger Cost: A Detailed Guide
Posted on03/05/202522/09/2026
7kW EV Charger Cost explained with charger prices, installation costs, electricity use, running expenses, and key factors to consider before buying.
Read More 7kW EV Charger Cost: A Detailed Guide
Blog | Logic Gates
NOR Gate Truth Table: A Complete Technical Guide
Posted on03/05/202524/01/2026
The NOR gate truth table is one of the foundational concepts…
Read More NOR Gate Truth Table: A Complete Technical Guide
Blog | Electronics
Schmitt Trigger Inverter: Working, Applications, and Circuit Design
Posted on01/05/202524/01/2026
The Schmitt Trigger Inverter is a vital component in both digital…
Read More Schmitt Trigger Inverter: Working, Applications, and Circuit Design
Blog | Electrical Concepts | Electronics
Schmitt Trigger Oscillator: Everything You Need to Know
Posted on01/05/202524/01/2026
A Schmitt trigger oscillator is a powerful tool used in electronics….
Read More Schmitt Trigger Oscillator: Everything You Need to Know
Solar Panel Kits Reviews
Top 3 Ring Solar Panel for Doorbell to Buy
Posted on01/05/202522/08/2026
Discover the Top 3 Ring Solar Panel for Doorbell to Buy in 2026. Compare features, charging performance, compatibility, pricing, and expert recommendations to choose the best solar panel for your Ring Video Doorbell.
Read More Top 3 Ring Solar Panel for Doorbell to Buy
Solar Energy | Blog | Renewable Energy
Best Solar Panel Cleaning Services in USA
Posted on01/05/202524/01/2026
Clean solar panels are essential for optimal performance. Dust, pollen, bird…
Read More Best Solar Panel Cleaning Services in USA
Circuit Analysis
How to Find Vth in Thevenin Theorem
Posted on01/05/202521/10/2026
When you’re analyzing electrical circuits, complexity can quickly become overwhelming. But…
Read More How to Find Vth in Thevenin Theorem
Blog | Fire Alarm System
Smoke Detector Beeping: Why It Happens and How to Stop It
Posted on01/05/202524/01/2026
A smoke detector beeping unexpectedly can be annoying and alarming. These…
Read More Smoke Detector Beeping: Why It Happens and How to Stop It