There are 21 items in this page
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How 3 Phase Transformers Work
How do 3 phase transformers work, why are three phase transformers used, how do they produce 480V, 277V, 240V, 208V and 120V. What is...
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The Most Confusing Part of the Power Grid
Geomagnetic storms aren’t the only thing that can make the grid behave in funny ways. There are devices even in your own home that fo...
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Where Does Grounded Electricity Actually Go?
Grounding is one of the most confusing and misunderstood aspects of the grid. Errata: At 10:40, the meter is set to resistance (not v...
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How 3 Phase Transformers Work
How do 3 phase transformers work, why are three phase transformers used, how do they produce 480V, 277V, 240V, 208V and 120V. What is...
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Transformer Series Part 6 – Grounding & Bonding
Join Paul as he walks you through the grounding and bonding requirements for Transformers. Be sure to watch the other parts of this s...
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Transformer Series Part 5 – Secondary Conductor Rules (C)(3) through (C)(6)
Join Paul Abernathy as he talks about the various secondary conductor rules (C)(3) through (C)(6) for transformers. Please be sure to...
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Transformer Series Part 4 – 10′ Secondary Conductors Rules
Join Paul Abernathy as he continues the transformer series and talks about the rare (C)(1) secondary conductor rule as well as the 10...
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Transformer Series Part 3 – Conductor Sizing & 240.21(B)(3) Tap Rules
Join Paul Abernathy as he takes you through part 3 of the transformer series on how to size primary and secondary conductors to trans...
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Transformer Series Part 2 – Calculating the Primary and Secondary Overcurrent Protection
Introduction to Transformers and the National Electrical Code® in 2017 NEC. This is a multi-part series on understanding transformers...
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Transformer Series Part 1- Calculating Primary & Secondary Current Ratings
Introduction to Transformers and the National Electrical Code® based on the 2017 NEC. This is a multi-part series on understanding tr...