Technical articles on Electronics and Electrical Engineering topics focused on Basics of EE, Electronic components, power systems and equipment used for generation, transmission, operation, and controls of electricity.
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
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
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
Are you done with your Basic Electrical Engineering Course at college? Are you in 2nd, 3rd or 4th year of your electrical degree? Are you a professional Engineer or an Electrical Technician. If any of your answer to the above question is in ‘YES’, this post belongs you. This article presents basic definitions which help you … Read more
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:
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
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
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
Power Factor is a ratio between true and apparent power. Its values range between 0 to 1. Capacitors play a major role in the correction of power factor, the Electrical Engineers, technicians and other people at plants are interested to improve the power factor by selecting the proper value of the capacitor. Today Electrical Engineering … Read more
HP to Amps conversion formulas with step by step calculations. These four formulas will help you to: Calculate current from HP in DC Circuits A 24 V DC Motor draws is rated at 1/8 HP. Find the current flowing through it. The recorded efficiency is 95%. I = ((1/8) * 746) / (24 * 0.95) … Read more