Types of Transformers Based on the Value of K

Transformation Ratio (K)

The transformation ratio for voltage is defined as the ratio of secondary voltage to the primary voltage of a transformer. It is denoted by K.

Transformer ratio (k)

Transformer ratio (k)

Turns Ratio of the Transformer

The turn’s ratio of a transformer is defined as the ratio of the number of primary turns to the number of secondary turns.

Turns ratio of the Transformer

Turns ratio of the Transformer

Types of Transformers Based on the Value of K

Based on the value of the transformation ratio K, the transformers are classified as, step up. Step down or one as to one transformers.

Step up transformer

The transformer having K > 1 or V2 > V1 is called as the step up transformer. We get higher secondary voltage as compared to the primary winding, hence the name step up.

Step down transformer

The transformer having K < 1 or V2 < V1 is called as the step down transformer. We get lower secondary voltage than the primary voltage, hence the name step down.

One-to-one transformer

The transformer having K = 1 or V1 = V2 is called as a one-to-one transformer.

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