Variable Frequency Drives

Variable frequency drives are the high-power circuits that are designed to produce varying frequencies by which they provide useful power over a wide range of speeds for an AC motor to run. This article briefly explains the working of VFDs and its practical applications and working. Synchronous speed, frequency, and poles of the induction motor … Read more

Download Free Basic Electrical Engineering Formula Sheet


Electrical Engineering XYZ shares free formula sheet on basic electrical engineering concepts and topics. The formula sheet contains different formulas on 13 DC and AC topics and is important for all Engineering students who are doing their engineering, and for those who are appearing in various competitive tests. While these formulas are basic concepts everyone … Read more

50+ Types of Transformers with Practical Applications

An electrical transformer is an ac machine which steps the ac electricity from one voltage level to another. There are hundreds of different types of transformers, that can be utilized for different applications. Watch the video below or skip to text. Given below is a list of 50+ different types of transformers and their practical … Read more

Type of Insulators in Power Transmission Lines


Insulators in power systems are used for carrying transmission line conductors. They are responsible for providing mechanical support as well as electrical insulation to the conductors. Given below are the 5 types of insulators employed on power transmission lines. Pin Type Insulator Pin Type insulators have a metal pin bolted directly above the cross arm … Read more

Electrical Relays

The relay is an electrically operated switch. It comprises of a set of input terminals for a single or multiple control signals, and a set of operating contact terminals. The switch may have any number of contacts in multiple contact forms, such as make contacts, break contacts, or combinations thereof. electromechanical relay is an electrical … Read more

What does Code C ANSI Standard CT Accuracy Class indicates

While referring to ANSI Standard CT Accuracy Classes, the Code C implies that the transformer ratio can be calculated. The code C classification covers most bushing CTs that have uniformly distributed windings and any other transformers whose core leakage flux has a negligible effect on the ratio, within the defined limits.

Highest pressure generating pump inside the thermal plant is – Electrical Engineering MCQ

Electrical Engineering MCQ Highest pressure generating pump inside the thermal plant is: Correct answer: 1. Boiler feed pump Explanation: The primary function of a boiler feed pump is to supply water to the boiler at high pressure. It takes water from the feed water system and increases its pressure before delivering it to the boiler. … Read more

Instrument Transformer Test Switches

Connections made between instrument transformers and receiving instruments such as panel- mounted meters and relays must be occasionally broken in order to perform tests and other maintenance functions. Download PDF here for later or continue reading below An accessory often seen in power instrument panels is a test switch bank, consisting of a series of … Read more