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Programmable electrical energy meter and methods therefor

  • US 5,555,508 A
  • Filed: 09/27/1995
  • Issued: 09/10/1996
  • Est. Priority Date: 02/21/1992
  • Status: Expired due to Term
First Claim
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1. Apparatus for electronically metering electrical energy, said electrical energy comprising voltage and current characteristics, wherein voltage and current signals representative of said voltage and current characteristics are provided, said apparatus comprising:

  • a first processor, connected to receive said voltage and current signals, for determining electrical energy from said voltage and current signals and for generating an energy signal representative of the electrical energy determination;

    a second processor, connected to said first processor, for receiving said energy signal, for generating an indication signal representative of said energy signal;

    an option connector, connected to said first processor and said second processor, whereby said energy signal is provided to said option connector and a communication connection is provided between said option connector and said second processor; and

    a power supply, connected to receive said voltage signal, for generating a power signal, said power signal being provided to said option connector, whereby a power connection is provided, said power supply comprising a semi-regulated power source, a regulated power source and a non-volatile power source and wherein an electrical ground is provided, said option connector further providing a semi-regulated power connection, a regulated power connection, a non-volatile power connection and an electrical ground connection.

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