This turns ratio value dictates the operation of the . The magnitude of the secondary current is dependent on the turns ratio of the transformer. What you´ll learn in Module 11. The ideal transformer identity shown in eq. Transformer efficiency and off load .
With it, we can easily multiply or divide voltage and current in AC circuits.

So transformer ration test is an essential type test of transformer.
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The voltage should be applied only in the high voltage winding in order to avoid unsafe voltage. Actually in electrical power transformer , one alternating electrical source is applied to the primary winding and due to this, magnetizing current . The turns ratio is defined as the ratio of turns of wire in the primary winding to the number of turns of wire in the secondary winding. A transformer in which the voltage across the secondary is greater than the voltage applied to . Turns ratio can be expressed using Equation (13-1).






