Protection Relay

Philosophy of Protection System Settings

The objectives  of the protection system are: –  limit damage to people and to the plant; –  permit different  service conditions; –  guarantee maximum service continuity for the plant not affected  by faults; –  activate the automatisms provided. The characteristics of the protection system of an electric networks are: –   Dependence: it can be called on …

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Electrical characteristics

(Peak) making current: The peak value of the first major loop of the current in one pole of a switching device during the transient period following the initiation of current during a making operation. Peak current: The peak value of the first major loop of current during the transient period following initiation. Breaking current: Current …

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Three Phase Transformer

Three Phase Transformers Basics

A three-phase transformer is used to generate and transmit a large amount of power. Three-phase step up and step down transformers are basically used in various fields in the power system network. A transformer can be formed by joining three separate single-phase winding in a suitable way. Such an arrangement is called 3-phase bank of …

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