Patent ID: 6792364
Filing Date: 2004-09-14
Classification: G01R

Abstract:
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.