Average W/kg Can Hide a Local Problem
A core can have an acceptable average loss wh…
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A No-Load Loss Failure at Transformer FAT
FAT has found excessive no-load loss. The inv…
Read full articleWhat 90%, 100% and 110% Excitation Can Reveal
One excitation point gives you a result. Seve…
Read full articleHigh Measured Loss: Start with the Measurement Boundary
Before ordering a different CRGO grade, repea…
Read full articleNormal Loss, High Exciting Current: Where to Start
The watts are acceptable. The exciting curren…
Read full articleThe Magnetic Consequences of a Punched Hole
A hole is a missing piece of the magnetic pat…
Read full articleLamination Alignment Is a Magnetic and Assembly Variable
An offset lamination is not just an untidy ed…
Read full articleWhat Cutting Changes Near a GOES Edge
A sheared edge has two stories: the burr you …
Read full articleMore Step-Lap Steps Do Not Automatically Make a Better Core
Adding steps changes a joint design. It does …
Read full articleOne Joint-Gap Reading Cannot Represent a Whole Stack
The inspection sheet shows one joint-gap valu…
Read full articleThe Smallest Step-Lap Gap Is Not the Whole Objective
"Close the gap as much as possible" is not a …
Read full articleA Factory Pass Does Not Freeze the Core for Transport
A magnetic test report records a condition at…
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