Video Explainer
Why the Wild Leg Reads 208V
You know it reads 208. This is the why: the geometry of a closed delta secondary, how the ground reference sets the wild leg's corner, and the math behind 1.73 × 120 = 208.
Watch & read →Free Lesson
What Is a Transformer?
Lesson 1 of XFMR Training, free and no signup: the primary and secondary sides, the two coils, turns ratio, tank grounds, and polarity. The exact lesson from inside the app, written by a journeyman lineman.
Read Lesson 1 →3D-Printable
The Hand-Tie Speed-Roller
Partnership with Poletop. Free STL, print it and run it.
- Infill
- Gyroid 30%
- Supports
- On
- Filament
- PLA+
⚠ SUPER GLUE THE HANDLE IN PLACE!
↓ speedRoller.stl · 3.3 MB
YouTube
More on the Channel
Real theory and troubleshooting, explained the way you'd hear it on the job. New videos land on the channel first, then get a written write-up here.
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