Optimized transformer protection
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United States of America Patent
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Jul 23, 2024
Grant Date -
Apr 13, 2023
app pub date -
Jul 29, 2022
filing date -
Oct 7, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
A method for determining an optimized TCC operating curve for an electronic interrupting device that protects a distribution transformer in a power distribution network, where the TCC operating curve is some optimized predetermined percentage above a TCC curve for normal transformer operation. The method includes providing a TCC transformer curve that identifies an allowed transformer operation current once the transformer magnetics have been stabilized and the transformer is operating normally, and determining a TCC operating curve that is defined by points along the transformer curve plus a predetermined percentage above the transformer curve, where the operating curve identifies a response time for when the electronic interrupting device will open in response to a certain current flow.
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