Transformer Testing Course - e-lesson#9

E-lesson: Transformer Testing Course – e-lesson#9: Switching impulse test

Course: Intermediate level

As in previous lessons, this chapter of the Transformer Testing Course details another dielectric test of power transformers. The subject of Lesson 9 is the switching impulse test. You will learn about IEC and IEEE standard requirements, test connections, waveform control and evaluation, testing techniques, and failure cases.

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In this e-lesson you will learn about relevant standards, test and evaluation methods, and requirements of test equipment for switching impulse test of power transformers.

KeywordsPower Transformers, Transformer Testing, Switching impulse, High voltage, Measurement


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Balazs Sztari

Balazs Sztari graduated as electrical engineer in Budapest. Beside of factory acceptance tests, his team performs commissioning, diagnostics and R&D tests on power transformers and rotating machines.

He is currently a member of Cigre A2.53 working group.

Balazs Sztari

Ganz Electric

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