What is GFCI or GFI? A ground fault circuit interrupter, called a GFCI or GFI, is an inexpensive electrical switchgear device that can either be installed in your electrical system or built into a power cord to protect you from severe electrical shocks. Electric shocks can cause severe injury or even death. Even exposure to current as low as 100 ma current for only … [Read more...] about GFCI (Ground Fault Circuit Interrupter) – Working, Types, Installing and Troubleshooting
This article explains the measurement of three-phase power in star connected or delta connecter load using the wattmeter methods. The power in a three phase load can be measured by following methods: Three wattmeter method Two wattmeter method One wattmeter method The name of these methods indicates the number of wattmeters used in the measurement of … [Read more...] about Measurement of Three Phase Power | Wattmeter Methods
Are you an electrical engineer searching for a job now? Thinking of what to do next? Have you ever thought about what jobs you can do after your graduation? If you have these questions in your mind, then this article is for you. Keep reading. In this article I will list some of the common job roles and responsibilities handled by electrical engineers all over the … [Read more...] about What Jobs Electrical Engineers Do? | Roles and Responsibilities
Voltage, current, and resistance are three properties that are fundamental to almost everything you will do in electrical and electronics engineering. They are intimately related. In this article, we used water in a river analogy to explain what are current, resistance and voltage. This method will help the beginners to imagine and understand these fundamentals much … [Read more...] about What Are Current, Resistance and Voltage?
A Light Emitting Diode that emits one color when forward biased and another color when reverse biased is called a multicolor RGB LED. Related Article: Working of Light Emitting Diode (LED) One commonly used schematic symbol for these LEDs is shown below. Working of Multicolor RGB LEDs Multicolor RGB LEDs actually contain two PN junctions that are … [Read more...] about How Multicolor RGB (Red Green Yellow) LEDs Work?