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Why Transformers Fail (and How to Prevent It)

The Electric Brit 46,007 2 weeks ago
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A video on the back of my previous one which was taken down by request, exploring the basics of how transformers operate and their components and the most common causes of failure, and how we mitigate against that failure. I’ll explore more specific concepts like harmonics and partial discharge in a future video as well as more on transformers. My next video I'll pay more attention to the music / volume. Chapters: 00:20 Basic Transformer Theory 04:50 Transformer Cooling 06:18 Dissolved Gas Analysis 06:58 Breathers 07:18 Bucholtz Relays 08:15 Deluge and Fire Walls 09:15 DGA Again 10:00 Bushing Failure 10:30 Tap Changer 11:10 Surge Arresters 11:25 Protection Correction: 01:00 This graph is parabolic not exponential. It's increase is quadratic. 02:31 The silicon steel is an alloy and the insulating layer between is typically a natural oxide layer but can be varnish or paper.

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