Inductors are electrical components that oppose the flow of alternating current (AC) by temporarily storing energy as magnetic fields. The action of an inductor is known as Inductance. This article discusses inductors and inductance. By the end of this article, you will learn … [Read more...] about Inductors and Inductance : Working, Unit, Function, Types and Uses
Instrumentation
Measurement of Three Phase Power | Wattmeter Methods
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 … [Read more...] about Measurement of Three Phase Power | Wattmeter Methods
Current Transformer (CT) – Construction and Working Principle
A current transformer (CT) is a type of transformer that is used to measure AC current. It produces an alternating current (AC) in its secondary which is proportional to the AC current in its primary. Current transformers, along with voltage or potential transformers … [Read more...] about Current Transformer (CT) – Construction and Working Principle
Low Voltage Switchgear
As per IEC 60947, switchgears with rated voltages up to 1000 V ac and 1500 V dc are termed as low voltage switchgear. The term ‘switchgear’ is a generic term encompassing a wide range of products like circuit breakers, switches, switch fuse units, off-load isolators, HRC fuses, … [Read more...] about Low Voltage Switchgear
Three Types of Analog Instruments
An analog instrument is one in which the output or display is a continuous function of time and bears a constant relation to its input. The analog instruments find extensive use in present-day applications although digital instruments are increasing in number and applications. … [Read more...] about Three Types of Analog Instruments
Electric Potential, Potential Difference and EMF
In this article, you will study what are electric potential, the potential difference (PD) and electromotive force (emf) and the difference between them. Just as a body raised above the ground has gravitational potential energy, similarly, a charged body has electric potential … [Read more...] about Electric Potential, Potential Difference and EMF
Different Types of Capacitors and their Uses
Basically, a capacitor is formed from two conducting plates separated by a thin insulating layer. There are different types of capacitors that are manufactured in many forms, styles, and materials. Understanding the basics of them helps you to choose the capacitor for your … [Read more...] about Different Types of Capacitors and their Uses
Solid State Relays (Static Relays)
What is a Static Relay? There are two basic classifications of relays - Electromechanical Relays and Solid State Relays (Static relay). One main difference between them is electromechanical relays have moving parts, whereas solid-state relays have no moving parts. Solid State … [Read more...] about Solid State Relays (Static Relays)