E-lesson: Transformer Testing Lesson #8: Lightning impulse test (part 2)
Hosted by: Balazs Sztari
This is the continuation of Lesson #7, where the attendees had the opportunity to learn about the basics and standards of lightning impulse testing of power transformers. The timeframe of one lesson was not enough to cover this topic fully, therefore next lesson of Transformer Testing Course will be the second part of LI testing lesson. Based on most of the audience’s questions, this lesson will focus on the waveshape control and evaluation of high-overshoot and/or oscillatory LI waveforms.
It will contain some examples of LI failure with fault description.
Keywords: Power Transformers, Transformer Testing, Lightning impulse, High voltage, Measurement