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Robotics
Forum Do you design electronic power meters or services around them?
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  • freescaledocs
  • freescale
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Related

Do you design electronic power meters or services around them?

MAb
MAb over 14 years ago

More and more, electro-mechanical power meters are being replaced by electronic ones. These electronic meters provide several advantages over the  electro-mechanical devices. Electronic power meters are more powerfull and accurate.

 

Thus, many design engineers are interested today by solutions for meters.


Do you develop devices or services around these new electronic power meter generation ?

What kind of power meters, what are your requirements ?

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  • Former Member
    0 Former Member over 14 years ago

    there are a few wat to meter current going into a divce 1.) Witha current transfromer or CT this trasnformer is a 1 to 1 or ?(needed output)

    porportinal output. 2.) And outher way is with inductance

     

    holp this helped

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  • jvdberg@ieee.org
    0 jvdberg@ieee.org over 14 years ago

    Electro-mechanical power meters provide several advantages over the electronic devices. They are robust and have a very reliable mechanical memory. Electro-mechanical power meters will operate for many years without maintenance. Calibration intervals could be as long as 10 years. Electronic meters could be more accurate for a short period of time. If not well designed, they could be influenced by electromagnetic radiation and power outages. This might result in an unwanted reset of the counter or displaying a completely random result. If electrolytic capacitors, back up batteries and other standard components are used in an electronic power meter, within five years problems are to be expected. Not for a single device, but cirtainly for a power company owning thousends of meters. I already heard some stories about electronic power meters that caused a fire. The only advances I see in electronic power meters is the possibility of remote reading and applications in a smart grid. The higher complexity of these devices will cause a shorter reliable lifetime. Johan

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  • MAb
    0 MAb over 14 years ago

    Found a very interesting article providing some answers and helpful advice on designing Power Meter with an 8 bit MCU

     
    http://www.eetimes.com/design/microcontroller-mcu/4215999/Building-a-power-meter-application-with-an-8-bit-MCU
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  • Former Member
    0 Former Member over 13 years ago

    pcb Transformers

    neosid

    http://neotech.pl/index.php?lang=en

     

    buy.

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