Electrical Engineering: Ch 13: 3 Phase Circuit (51 of 53) Household Wiring 1

In this video I will explain how 3-phase electrical distribution method are use inside household wiring from the tall outdoor power poles with high voltages from nearly 20,000V to 7200V going to a step-down transformer to 240V 3-phase output.

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[semidemiurge]

this is not 3-phase. this is split-phase

[schifoso]

I don't think this is what we call three phase. I have three phase in my home and it consists of three hot wires. The voltage between any two of the hot wires is 208V.

[yurko]

The two hot wires are in phase meaning that you don’t have 3 phase power in the house..right?

[jsc]

in california, the ground bar is 6ft deep.

[lrobertiii]

Hello professor!
Since this series is about to wrap up I have a suggestion you could do; maybe explain what the Epsilon-Delta definition of a limit really means? That topic has always confused me in Calculus and I was wondering if you could maybe explain it?

[Asdayasman]

I got scared when you put your hands near the wires.

[darylmorse]

Residential service with 2X120V is single phase, not 3 phase. Why are you referring to it as 3 phase?