On Friday, February 16, 2018 at 7:40:58 PM UTC-5, James Wilkinson Sword wrote:
On Sat, 17 Feb 2018 00:31:04 -0000, Dev Null wrote:

On 2/16/2018 1:41 PM, James Wilkinson Sword wrote:
Electronically, no. But using simple coils and magnets which the originals did, subtracting x from y is simple, but when there's 3, how the **** do you do that? Especially as you have one hot leg at opposite phase to the other.

It's single phase.

No, one hot is opposite (180 degrees out) from the other. It makes measuring things complicated.

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Only to those that don't understand basic principles, ie Kirchhoff's current law.