In recent years, cells and batteries—especially cells—have become available in many different sizes and shapes besides the old cylindrical cells, transistor batteries and lantern batteries. In this article, you will …
Continue ReadingMiniature cells and Batteries – Silver Oxide, Mercury and Lithium Cells
Electric cars are making big waves in the automobile world. These noise-free, pollution-free and high-performance vehicles are expected to make their I.C. engine counterparts obsolete by 2025. This video will …
The Stroboscopic Effect in Fluorescent lamp is a phenomenon which causes running or moving equipment to appear stationary or appear to be operating slower than they actually are. Fluorescent materials …
A DC motor is an electrical machine that converts electrical energy into mechanical energy. The working of DC motor is based on the principle that when a current carrying conductor …
Armature reaction in alternator is the effect of armature flux on the field flux (i. e., rotor ampere-turns). Read this article to learn more. We have already discussed the effect …
Electric Motors need maintenance regularly in order to avoid failure and prolong their lifespan. Generally, motors and motor parts should be maintained and tested at least every 6 months. Then …
Continue ReadingElectric Motor Maintenance : Preventive, Predictive and Reactive Maintenance
Before going to the operation and characteristics of split-phase induction motor we should first understand why single phase induction motor is not self-starting. To make a single-phase induction motor self-starting, …
Continue ReadingSplit Phase Induction Motor – Operation and Characteristics
Speed control of dc motor is achieved using different methods. There are three types of dc motors. For each of them, there are different methods of speed control. Each of …
Continue ReadingSpeed Control of DC Motor (Shunt, Series and Compound)
Although a far greater percentage of electric motors in service are ac motors, the dc motor is of considerable industrial importance. The principal advantage of a dc motor is that its speed …