Guides and notes on industrial electrical and automation parts: selection, wiring, settings and ordering.
The five field causes of MCCB nuisance tripping and overheating -- loose terminations, harmonics, undersizing, ambient heat, and thermal drift -- and how infrared thermography finds each one before it...
10 min read
Why VFDs overheat, why cooling fans fail, and how to diagnose and prevent overtemperature trips.
9 min read
A field guide to separating real motor overloads from soft starter nuisance trips, and the SCR conduction, bypass, duty-cycle and ventilation causes behind starter overheating.
11 min read
Diagnose contactor coil failure from undervoltage, overvoltage, harmonics, cycling, binding, or heat per IEC 60947-4-1, with field fixes. Shop at Stoklink.
16 min read
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