DC Chopper

DC Chopper: DC Chopper are mainly dc to dc single stage conversion devices which provide a variable voltage on the load side when fed from a constant dc voltage source.…

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Three pulse midpoint converter

Three pulse midpoint converter: These are basically three-phase converters, and are very popular because a 3-phase supply is readily available. 3-phase converters have a greater power capability than single phase…

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Phase Controlled Line Commutated Converters

Phase Controlled Line Commutated Converters: In these Phase Controlled Line Commutated Converters, the commutation voltage, i.e. the voltage required to transfer current from one thyristor to the other, is provided…

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Single Line Diagram of Electrical System

Single Line Diagram of Electrical System: The function of an Structure of Electrical Power System is to connect the power station to the consumers' loads by means of interconnected system…

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Classification of Electric Drive

Classification of Electric Drive: Classification of Electric Drive are normally classified into three groups, based on their development, namely group, individual and multi motor electric drives. If several groups of…

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Characteristics of Protective Relay

Characteristics of Protective Relay: Characteristics of Protective Relay elements using different operating principles. These principles and design criteria determine how well the basic function is performed and how in practice…

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Fault Meaning

Fault Meaning and Statistics: Fault Meaning and Statistics - It is useful to have some idea of the frequency of the incidence of faults on the different items of equipment in a…

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