E-lesson: Transformer Testing Course – e-lesson #19: Testing of tap-changers and built-in current transformers
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In this chapter of Transformer Testing Course, you will learn how to test tap-changers and current transformers built into the power transformer.
Tap-changers and built-in current transformers are important components of the power transformer.
According to the standard, these components must be tested together with the transformer during the factory acceptance test. The standard requirements and procedures will be detailed in this lesson.
Keywords: power transformers, transformer testing, tap-changer, OLTC, current transformer, CT, measurement