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.
Dive into the world of electricity with the Electrical Engineering XYZ Handbook. This handbook provides information on different countries, their low and medium voltages, along with frequency. Download Book Fetching download. Please wait 30 seconds…
The choice between oil and air as a cooling medium in transformers depends on various factors, and each has its own advantages. In case of large sized power transformers, oil cooling is required. Here are major advantages of using oil as a cooling medium in transformers: Better Heat Dissipation Oil is a more effective heat … Read more
The Diode is a passive component. There has been lot of discussion and lot of content available online for the question. Many authors refer diode as active, while other refer it as a passive component. However, a diode is a passive component. In this article ElectricalEngineering.XYZ shares why diode is a passive component. Basic Definition … Read more
Special-purpose electronic test instruments called loop calibrators exist for the express purpose of 4-20 mA current loop circuit troubleshooting . These versatile instruments are generally capable of not only measuring current , but also sourcing current to unpowered devices in a loop , and also simulating loop – powered 4-20 mA transmitters. Download here complete … Read more
If a power transformer designed to operate at 60 Hz is forced to operate at 50 Hz instead, the flux must reach greater peak levels than before in order to produce the same opposing voltage needed to balance against the source voltage. This is true even if the source voltage is the same as before. … Read more
Transformers are also constrained in their performance by the magnetic flux limitations of the core. For ferromagnetic core transformers, we must be mindful of the saturation limits of the core. Remember that ferromagnetic materials cannot support infinite magnetic flux densities: they tend to “saturate” at a certain level (dictated by the material and core dimensions), … Read more
LEDs, CFLs, and incandescent lamps represent distinct lighting technologies, each with unique characteristics. LEDs, or Light Emitting Diodes, outshine the competition in energy efficiency and lifespan. They consume significantly less energy than CFLs and incandescents, boasting a lifespan of up to 25,000 hours. CFLs, Compact Fluorescent Lamps, strike a balance between efficiency and cost but … Read more
An electromechanical relay is an electrical switch actuated by an electromagnet coil. As switching devices, they exhibit simple “on” and “off” behavior with no intermediate states. Relays are very useful devices, as they allow a single discrete (on/off) electrical signal to control much greater levels of electrical power, and/or multiple power or control signals that … Read more
A contactor is an electrical device that is used for switching on or switching off electrical circuits. Contactors are employed for controlling electric motors. In this article, you’ll learn the basic construction and working of contactors. To start up and shut down a three-phase AC induction motor, any three-pole switch with a suitable current rating … Read more
The current transformer is a type of instrument transformer used in electrical power systems. Its primary function is to measure electrical current flowing in a circuit. Current transformers are used to step down high currents in power systems to levels that can be safely handled by measuring and protection instruments. Short of time now, download … Read more