How does my energy saving meter work?

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  • Thread starter Thread starter iloveroman
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    Energy Meter Work
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SUMMARY

The discussion centers on the functionality of the Efergy standard energy saving meter, which utilizes a clamp-on design to measure electricity usage. This device operates by placing a clip around the wire exiting the household meter, leveraging the magnetic field generated by the electrical current. Users noted that while it measures amperage through induction, it assumes voltage and phase to calculate wattage, which may not differentiate between real and reactive power. The conversation also highlights the utility of the "Kill-a-Watt" device for more accurate measurements.

PREREQUISITES
  • Understanding of electrical concepts such as amperage and voltage.
  • Familiarity with induction measurement techniques.
  • Knowledge of real versus reactive power in electrical systems.
  • Experience with energy monitoring devices and their functionalities.
NEXT STEPS
  • Research the principles of electromagnetic induction in electrical measurements.
  • Explore the specifications and functionalities of the "Kill-a-Watt" energy monitoring device.
  • Learn about the differences between real and reactive power in electrical systems.
  • Investigate how clamp-on ammeters work and their applications in energy monitoring.
USEFUL FOR

Homeowners, energy efficiency enthusiasts, electrical engineers, and anyone interested in monitoring and optimizing household electricity usage.

iloveroman
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Hello!

I've just brought an Energy Saving meter, to see how much electricity my household uses and I'm kinda curious as to how it actually works.

It's an efergy standard meter.
It has a clip that you place on the wire leaving your household meter, which seems to have a magnet in it.

I get that it will be using the magnetic field around the electrical wire but I don't really understand how.

Any help would be appreiciated, as it's been troublesome to find infomation and I'm determined now!
If this isn't the right spot, inapproprate etc, please let me know!

Cheers

Lot
 
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Is this a simple clamp-on-ammeter that clamps on to the hot wire only? If so, it cannot differentiate between real and reactive power. Even so, it could be useful in recording instantaneous amps. Does it integrate, meaning amp-hours? Even more useful. Most useful is a wall-plug device named "Kill-a-Watt" (TR) that differentiates between real and reactive power.
Bob S
 
Is this it? http://www.efergy.com/e2.html

It measures amperage via induction, then assumes a voltage and phase to calculate wattage.
 

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