Method and Apparatus for Harvesting Electrical Energy from Current Carrying Elongate Conductors
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United States of America Patent
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Jan 24, 2018
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Jan 25, 2017
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Abstract
An energy harvesting method and apparatus for harvesting electrical energy from an elongate conductor through which alternating electrical current is flowing. The apparatus includes a magnetically permeable ferromagnetic metal U-shaped core. An electromagnetic coil surrounds the central section of the core. The core legs form an opening leading to a gap between the legs. The opening and gap are larger than the cross section of the conductor. The conductor is received through the opening into the gap whereat the flowing alternating electric current electromagnetically couples with the core and induces electric current in the coil. The opening is maintained open for selectively removing the conductor therethrough. The apparatus is encapsulated within an electrically insulative housing for electrically insulating and preventing physical contact with the conductor. The apparatus powers an electronic circuit which senses and transmits, via electromagnetic radiation, the operational status of the conductor.
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