Introduction to Gas Insulated Substations / Switchgears (GIS)
Gas-insulated substations (GIS) have been used in power systems over the last three decades because of their high reliability, easy … Continue Reading
Synchronous Motors MCQ
This set of Electrical Machines Multiple Choice Questions & Answers (MCQs) focuses on “Synchronous Motors ”. This is a set … Continue Reading
How Multicolor RGB (Red Green Yellow) LEDs Work?
A Light Emitting Diode that emits one color when forward biased and another color when reverse biased is called a … Continue Reading
Core Type and Shell Type Transformers
Depending on the type of construction used, the transformers are classified into two categories. Core type Transformer Shell type Transformer Difference … Continue Reading
Low Voltage Switchgear
Low voltage switchgear, according to IEC 60947, refers to switchgears with rated voltages up to 1000 V AC and 1500 … Continue Reading
Arduino DC Digital Voltmeter
A voltmeter is an instrument used for measuring electrical potential difference between two points in an electric circuit. Analog voltmeters … Continue Reading
What is a FUSE and How it Works?
A fuse protects an electrical circuit or device from excessive current when a metal element inside it melts to create an … Continue Reading
Different Types of Rechargeable Batteries
Rechargeable batteries are everywhere these days: cordless tools, laptop computers, cordless phones, and cell phones, just to name a few. … Continue Reading
Three Types of Analog Instruments – Indicating, Recording and Integrating
An analog instrument is one in which the output or display is a continuous function of time and bears a … Continue Reading