Patent ID: 6064192
Filing Date: 2000-05-16
Classification: G01R,H01F

Abstract:
An electric meter configured to compute an amount of energy consumed by a load powered by a mains voltage, comprising:a separable housing;a split-core current transformer located within said housing that is configured to inductively sense an amount of current flowing through a conductor coupled to said load, said transformer comprising a metallic core that includes:first and second spaced sections, oppositely disposed, each of said first and second sections being surrounded by wound coils; anda removable portion comprising third and fourth elongated sections that are configured to form an opposite side of said metallic core, and that are substantially a same length as said first and second sections;said first and second sections being configured to receive and slideably engage with said third and fourth elongated sections to form a rectangular core having a central opening;said conductor being located within said central opening such that said wound coils are configured to generate a coil output signal proportional to the amount of current flowing through said conductor; andprocessing circuitry that is configured to be responsive to said coil output signal from said wound coils and said mains voltage such that said processing circuitry computes the amount of energy being consumed by the load coupled to said conductor and to generate an electrical output signal corresponding to the amount of energy being consumed by said load.