Ultrasonic Dead Zones in Thin Transformer Tank Welds
A thin tank seam may place near-surface and b…
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Magnetic-Particle Testing of Transformer Tank Attachment Welds
One magnetization direction can miss a differ…
阅读全文Radiator Header Welds: Inspect Before Access Closes
Final inspection can have less access than an…
阅读全文Welding Thin Corrugated Transformer Panels to Heavy Frames
The thin sheet and heavy frame can impose com…
阅读全文Back-Gouged Transformer Tank Welds: Inspect the Exposed Root
The back-gouged surface is an inspection oppo…
阅读全文Transformer Tank Corner Welds: Detect Lack of Fusion
A corner geometry can hide the fusion boundar…
阅读全文Transformer Tank Weld Porosity: Does It Form a Leak Path?
A weld pore needs connectivity to create a th…
阅读全文Transformer Tank Weld Qualification: Cover Each Oil-Retaining Joint
Structural weld qualification and oil tightne…
阅读全文Transformer Tank Salt-Spray Tests Do Not Predict Service Life
A salt-spray duration is a test exposure, not…
阅读全文Trace Transformer Tank Coating to Its Serial Number
A batch record is useful when it identifies w…
阅读全文Transformer Cooling Fins: Keep Painted Air Passages Open
A coating defect can change an air passage as…
阅读全文Paint Repair on Oil-Contaminated Transformer Tank Steel
A clean-looking surface can become oily again…
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