GFCI Receptacle Protection XYZ – What are Ground Fault Current Interruptors and How to Install them on your Power System


GFCI or ground fault current interruption is a differential current protection scheme which works by comparing the difference of current between hot and neutral conductors that carry current from and to the load plugged in the receptacle. NEC defines GFCI in terms of a protection device: A device intended for the protection of personnel that … Read more

12 Basic Concepts of Electrical Engineering you should Learn Today

During your school physics days, you might have noticed some terms like active, linear, nonlinear, conventional flow, unilateral, bilateral, linear, nonlinear, NTC/PTC. While these general terms can be applied to any branch of science, they form the basic concepts of Electrical Engineering. In EE, these terms explain the behavior of electrical components and their basic … Read more

Here are 7 Protection Elements You Find in Power Distribution Networks


While we talk about the power distribution systems, we are talking of a system which comprises of the distribution substations, the primary and secondary feeders, distribution transformers and other secondary¬†networks. Despite the rapid advancements in power systems, the worth of distribution networks is sky-high and there is a need for sophisticated protection schemes which ensure … Read more

Laplace Transform Full Formula Sheet


Laplace transform is the method which is used to transform a time domain function into s domain. While Laplace transform is a handy technique to solve differential equations, it is widely employed in the electrical control system and modern industries. You might like:

Basics of Megger and How to Use it For Testing Motors


Megohmmeter (famous as Megger*) is an electrical instrument used to measure the electrical resistance of insulators.  Very often a megger is used to check the insulation of cable jackets, motors, and other high voltage (HV) equipment to ensure the safety of equipment. During its working, the object under test is connected with the probes (terminals) … Read more

Introduction to Proximity Sensor


The proximity sensor measures the distance between itself and the target object. The sensor takes distance as the input and provides an output which can be in the form of analog voltage, digital data, or a pulse (PWM). The proximity sensor is widely employed in electrical engineering and electronics industries. Types of proximity sensors Ultrasonic … Read more

4 Band Resistor Color Coding Chart


The 4 Band Resistor Color Coding Chart is a visual representation used in electronics to determine the resistance value of a resistor. It consists of four colored bands painted around the resistor body. Each color represents a specific numerical value or multiplier, aiding in identifying the resistance value according to a standardized color code system. … Read more