Sensor to monitor health of metal oxide arresters
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United States of America Patent
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Feb 19, 2019
Grant Date -
Jan 18, 2018
app pub date -
Jul 11, 2017
filing date -
Jul 12, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A sensor to monitor health of surge arresters such as metal oxide arresters is disclosed. The sensor including a housing; a sensor assembly contained in the housing, and a voltage measurement strap extending around a periphery of the housing. The voltage measurement strap being electrically connected to the electronics board and configured to measure voltage using electric field. The sensor assembly including: an electronics board to receive, transmit, process, and store signals; a Rogowski coil electrically connected to the electronics board to measure surge currents diverted by the surge arrestor; and a current transformer electrically connected to the electronics board to measure leakage current.
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