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551,923 results
How do 3 phase transformers work, why are three phase transformers used, how do they produce 480V, 277V, 240V, 208V and ...
293,878 views
12 days ago
Geomagnetic storms aren't the only thing that can make the grid behave in funny ways. There are devices even in your own home ...
1,102,411 views
2 weeks ago