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Electrical Calculators

Battery Backup Calculator

Battery Backup Calculator explains how a battery backup calculator works, the formulas behind it,...
Electrical Projects

Electrical BOQ Preparation for Substations and Cables

Purpose  This post analyses the Electrical Bill of Quantities (BOQ) for the substation and cable...
Electrical How to

33kV / 11kV Substation Single Line Diagram (SLD)

A single line diagram represents a three-phase power system using single line and standard...
Electric Motors

Why does a Motor draw High Current during Starting?

When an electric motor is switched on, it draws a current far larger than...
Electrical Procedures

Method Statement for Testing & Commissioning of Substation Equipment

This post analyzes the method statement for testing and commissioning of substation equipment.  Table of...
Software

How does a Simple PLC Control Loop actually work?

A programmable logic controller (PLC) is an industrial control system that monitors field conditions,...
Electrical Calculators

Plate / Pipe Earthing & Earthing Strip Size Calculator

An effective earthing system provides a controlled path for fault current and helps to...
Preventive Maintenance

How to Test PLC Digital Inputs and Outputs?

Programmable Logic Controller (PLC) Programmable Logic Controller (PLC) digital inputs and outputs form the interface...
Software

ETAP vs DIgSILENT PowerFactory

Choosing the right power system analysis software strongly influences how efficiently electrical networks are...
Electrical Notes & Articles

Capacitor Chart for Power Factor Correction

A capacitor chart is a practical engineering reference utilized to estimate the reactive-power compensation...
Software

Free Online Electrical Diagram Tools

Electrical engineers, technicians, designers and technical content creators regularly require to prepare clear and...
Electric Motors

PLC-Based Forward/Reverse Motor Control System (3-Phase Induction Motor)

Forward/reverse control of a three-phase induction motor is one of the most common requirements...
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