Transformer Testing
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Objective
I can describe the tests performed on transformers to ensure their quality.
Part 1 of 3
Key concepts
3 concepts
- 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.
Part 2 of 3
Practice
7 questions
What is the primary purpose of testing transformers before they are put into service?
Which test assesses the integrity of the transformer's insulation?
Part 3 of 3
Exit ticket
Quick comprehension check
“Describe two tests performed on transformers and what each test measures.”
Sample answer included in the free materials
Get the materials
Teacher guide, student handout, and slides — free, in Google Docs format
Teacher Guide
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Student Handout
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