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Showing 1-9 of 9 results
Types-of-Electric-current

Types of Electric Current – Steady (DC), Varying & Alternating (AC) Current

  • Categories Basic Electrical, Electrical Circuits, Electronics, Interview Questions, Signals and Systems, Transmission Line

The directed flow of free electrons (or charge) is called the electric current. The electric current may be classified into three main types: Steady current (DC Current) Varying current Alternating …

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DC generator problem 1

6 DC Generator Problems with Solution – Types of DC Generator

  • Categories DC Generator, Electrical Machines, Exams, Interview Questions, Objective Questions, Problems and Solution

This set of DC Generator Problems with Solution focuses on problems based on Types of DC Generator. DC Generator Problem 1 A shunt generator delivers 450 A at 230 V …

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interview question circuit breaker

Circuit Breakers – Interview Questions with Answers

  • Categories Interview Questions, Circuit Breaker, Power System

1. What is a Circuit Breaker? Circuit Breaker is a mechanical device designed to close or open contact members, thus closing or opening an electrical circuit under the normal or …

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Why Electric Motors Rated in KW

Why Electric Motors are Rated in kW and not in kVA?

  • Categories DC Motor, Electrical Machines, Interview Questions

Unlike Generators and Transformers, Electric Motors are rated in kW instead of kVA. We have already discussed why electric transformers are rated in kVA. This article explains why electric motors …

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Effects of Voltage and Frequency Variation on Transformers

Why Transformer does not work on DC supply?

  • Categories Transformer, Basic Electrical, Electrical Machines, Interview Questions

Did you ever think about what will happen to a transformer on dc supply? In this article, you will learn why the transformer does not work on the DC supply. …

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bird on power line no electrocution

Why Birds don’t get Electrocuted on Touching Power Lines?

  • Categories Interview Questions

You may be amazed at why the birds don’t get shocked when they sit on high voltage overhead power lines. People often ask why don’t birds get electrocuted on power …

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Effects of Voltage and Frequency Variation on Transformers

Effects of Voltage and Frequency Variation on Transformers

  • Categories Transformer, Electrical Machines, Generation, HVDC, Interview Questions, Power System, Substation

The effects of voltage and frequency variation on the transformer is discussed in this article. Usually, power transformers are not subjected to wide frequency variations. Also, modest voltage variations occur …

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single-phase-Induction

Single Phase Induction Motor – Working Principle and Construction

  • Categories Single Phase Motors, DC Motor, Electrical Machines, Interview Questions, Synchronous Motor, Three Phase Induction Motor

Single-phase motors are the most familiar of all-electric motors because they are extensively used in home appliances, shops, offices etc. It is true that single-phase motors are a less efficient …

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electrical-Interview-Questions

29 Important Electrical Interview Questions you must Go through

  • Categories Interview Questions, Basic Electrical, Battery, Electric Vehicles, Electrical Machines, Electronics, Substation, Transformer

Nervous about an upcoming Electrical Engineer interview? Check out this well-curated list of frequently asked Electrical interview questions and answers. 1. What is a 2 phase motor? A two-phase motor …

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17May2014
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Self Testing in Embedded Systems
09Jul2021

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