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Showing 1-9 of 43 results
Three Phase Transformer

Three-Phase Transformer – Basics and Connection Methods

  • Categories Transformer

Three-phase transformers are used in three-phase circuits to step up and step down the voltage according to the needs in a power system. You know that electric power is generated …

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Open Delta Connection in Transformer

Open Delta (V-V) Connection of Transformers

  • Categories Transformer, Power System

Open Delta Connection is a method of transformer connection used to transform three-phase power using two single-phase transformers. In this article, you will learn how this connection is done and …

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Transformer Percentage Impedance Testing

How to Test Percentage Impedance of Transformer?

  • Categories Transformer, Electrical Machines, Measurement, Power System, Substation

This article covers transformer impedance testing, one of the acceptances tests for new transformers, and a method for routine testing. The results of this test should compare directly to the …

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Substation-components-equipment-layout

Electrical Substation: Equipment, Types, Components & Functions

  • Categories Substation, Transformer

An electrical substation is an integral part of a generation, transmission and distribution system. A substation can interrupt or establish electrical circuit, change the voltage, frequency or other characteristics of …

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Transformer Bushing Types

Transformer Bushing Types : RIP Bushing vs OIP Bushing

  • Categories Transformer, Electrical Machines, Substation

Transformer bushing types are categorized based on their material, manufacturing, and design mainly into the following types: OIP (Oil-Impregnated Paper) Bushing RIP (Resin Impregnated Paper) Bushing RIS (Resin Impregnated Synthetic) …

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Current 2BTransformer 2BConstruction 2Bor 2BCircuit 2BDiagram 2Band 2BSymbol

Current Transformer (CT) – Construction and Working Principle

  • Categories Circuit Breaker, Electrical Machines, Generation, Instrumentation, Measurement, Power System, Substation, Switchgear, Transformer

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 …

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Practical 2Btransformer 2Bon 2Bno 2Bload

Practical Transformer on No Load

  • Categories Transformer

Please read Ideal Transformer and Practical Transformer before continuing. Consider a practical transformer on no load i.e., secondary on open-circuit as shown in figure below. The primary will draw a small …

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Why 2BCT 2Bsecondary 2Bshould 2Bnot 2Bopen

Why Current Transformer (CT) Seconday Should not be Open ?

  • Categories Power System, Electrical Machines, Transformer

Amazed why secondary of current transformer should not be open? If it is left open it may destroy the current transformer. So it is very important that the secondary of …

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ideal 2Btransformer 2Bphasor 2Bdiagram

Ideal Transformer and Practical Transformer

  • Categories Electrical Machines, Power System, Substation, Transformer

Ideal Transformer An ideal transformer is one that has no winding resistance no leakage flux i.e., the same flux links both the windings no iron losses (i.e., eddy current and …

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