Transformers and the national grid

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Question 22
Easy

For the step-down substation transformer shown in Figure 1, evaluate, in its simplest form, the ratio:

secondary voltage:primary voltage \text{secondary voltage} : \text{primary voltage} secondary voltage:primary voltage

Figure 1: Diagram of a step-down substation transformer with a laminated iron core.

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Transformers and the national grid Questions

  1. GCSE
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