PDC Current Subtraction: What Really Cancels?
Polarization and depolarization subtraction r…
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Practical engineering articles for transformer-core selection, design and production.
1,317 articles
Outsourced Transformer Tank Welding: Trace Every Final Seam
The weld register must follow the final fabri…
Read full articleRepeated Transformer Tank Weld Repairs: Track Remaining Wall
A repeated repair needs a geometry history, n…
Read full articleHelium Leak Testing of Transformer Tanks: Background and Recovery
Residual tracer near the instrument can produ…
Read full articleDissimilar Welds in Transformer Accessories
A dissimilar-metal joint needs evidence for b…
Read full articleTransformer Tank Nozzle Welds: Account for Piping Forces and Moments
The nozzle weld carries the pipe interface th…
Read full articleWeld Sequence and Distortion around Large Transformer Tank Openings
The opening stiffness and restraint change as…
Read full articleWeld Spatter inside Transformer Tanks: Inspect the Particle Path
A particle firmly attached during fabrication…
Read full articleArc Strikes on Transformer Tank Steel: Inspect beyond the Mark
Removing an arc mark does not automatically e…
Read full articleTransformer Tank Weld Radiography: Image Quality and Flaw Direction
Radiographic sensitivity and favorable defect…
Read full articleHydrogen Cracking in Transformer Tank Welds: Three Interacting Factors
Hydrogen-assisted cracking needs interacting …
Read full articleTransformer Tank Weld Repairs near Flange Sealing Faces
A repaired seam can be sound while the adjace…
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