crwdns2933803:06crwdne2933803:0
crwdns2933797:0Andrew Bookholtcrwdnd2933797:0crwdne2933797:0
- crwdns2933769:0crwdne2933769:0
- crwdns2933771:0crwdne2933771:0
- crwdns2933801:0crwdne2933801:0
crwdns2933807:0crwdne2933807:0
| - | [* black] The Watthour Meter's power supply has no direct contact with the outside world. Instead, it uses magnetic induction to power the meter. |
|---|---|
| - | [* icon_note] Electromagnetic induction is the production of voltage across a conductor moving through a magnetic field. It underlies the operation of generators, transformers, induction motors, all electric motors, synchronous motors, and solenoids. |
| - | [* black] We're uncertain as to the contents of the power supply, care to speculate? Maybe it's powered by Fairy dust?? |
| + | [* black] The extremely thick copper wires allow the meter to be wired in series with a household's main power supply and are capable of handling 200 Amps! |
| + | [* icon_note] Small metal strips along the inside case of the Watthour Meter's conduct 240V AC electricity to pressure pads on the main board that provide its power. |
| + | [* black] Interestingly, the meter relies on a current transformer to electromagnetic induction to power the meter. |
| + | [* icon_note] [link|http://en.wikipedia.org/wiki/Transformer#Instrument_transformers|Current transformers] indirectly measure the current flowing through the thick copper conductors and provide an output that can be read by the electronics on the board. |