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Revenue meter with power quality features

DC
  • US 6,792,364 B2
  • Filed: 09/03/2002
  • Issued: 09/14/2004
  • Est. Priority Date: 08/09/1999
  • Status: Expired due to Term
First Claim
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1. A revenue meter for measuring the delivery of electrical energy from an energy supplier to a consumer through an electric circuit, said meter comprising:

  • bayonet terminals disposed on said meter mateable with matching jaws of a detachable meter mounting device;

    a seal connected between said meter and said detachable meter mounting device, said seal operative to prevent removal of said meter and indicate tampering with said meter;

    a first sensor coupled with said electric circuit and operative to sense the voltage in said electric circuit and generate a first analog signal indicative of said voltage;

    a second sensor coupled with said electric circuit and operative to sense the current in said electric circuit and generate a second analog signal indicative of said current;

    an analog to digital converter coupled with said first and second sensors and operative to convert said first and second analog signals to one or more digital samples a memory coupled with said analog to digital converter and operative to receive and store said digital samples; and

    a calculator coupled with said memory and operative to compute one or more harmonic frequencies of said voltage and said current from said stored digital samples.

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