Transformer fault detection system
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United States of America Patent
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Feb 21, 2023
Grant Date -
Jul 15, 2021
app pub date -
Jan 14, 2021
filing date -
Jan 14, 2020
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A transformer fault detection, where the transformer includes a primary winding coupled to a medium voltage power line and a secondary winding providing a stepped down voltage of the medium voltage. The detection system includes a switching device, where the switching device includes a first voltage measuring device for measuring the voltage on the primary winding, a controller for processing measured voltages and a transceiver for receiving and transmitting messages. The detection system also includes a second voltage measuring device for measuring the stepped down voltage on the secondary winding, where the second voltage measuring device includes a transmitter for transmitting the measured step down voltage to the switching device. The controller uses the measured voltages to calculate a transformer turns ratio (TTR) of the transformer to determine whether a transformer fault.
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