The Open-Circuit Condition of a Transformer

The Open-Circuit Condition of a Transformer In the open-circuit condition (Fig. 12) a transformer is effec­tively turned into an iron-cored coil whose winding w1 is connected across a source of a Sinusoidal voltage. For this reason, the pha­sor diagram for a transformer in the open-circuit condition (Fig. 13) is not unlike that of an iron-cored […]
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The Equivalent Circuit and Phasor Diagram for an Ideal Single-Phase Transformer

The Equivalent Circuit and Phasor Diagram for an Ideal Single-Phase Transformer At this stage we will consider an ideal single-phase transformer in which the core is fabricated from a ferromagnetic material whose hysteresis has to be included in consideration (see Fig.6 b).   With the secondary circuit open-circuited, this ideal single-­phase transformer has the same […]
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Transformers

Transformers General A transformer is a static electric device (that is, one free from rota­ting or moving parts) most often used to convert one alternating voltage to another alternating voltage (or other alternating voltages) at the same frequency by mutual induction. A transformer has at least two windings linked by a common magnetic flux but […]
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