
Transformer Testing
9th Grade · Technology · 45 min
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Learning Objective
I can describe the tests performed on transformers to ensure their quality.
- 1
The insulation resistance test, also known as the megger test, checks the integrity of a transformer's insulation.
- 2
The turns ratio test verifies that the ratio of primary to secondary windings is correct, ensuring proper voltage transformation.
- 3
The open-circuit test determines the core losses of the transformer, while the short-circuit test determines the copper losses and impedance.


