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Showing 10-18 of 75 results
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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Synchronous 2Bmotor 2Bstarting 2Bmethods

Starting Methods for Synchronous Motor

  • Categories Synchronous Motor, Electrical Machines

Synchronous motors are not self-starting. Some additional devices should be used to start the motor. Basically, there are two methods for starting synchronous motors: Induction motor starting (Damper winding) Auxiliary motor …

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dc motor starter need working

Need of a Starter (3 & 4 Point) in DC Motors

  • Categories DC Motor, Electrical Machines

We use 3 and 4 point starters in DC motors. What happens if a DC motor is started without a starter? Let’s check it. Consider a dc motor at standstill. When …

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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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properties 2Bof

Properties of Good Transformer Oil

  • Categories Power System, Substation, Transformer

Even though the basic functions of the oil used in transformers are heat conduction and electrical insulation, there are many other properties which make a particular oil eminently suitable. Properties of good transformer …

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