SHORT-CIRCUIT CURRENT LIMITER
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United States of America Patent
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Issued Date -
Sep 7, 2023
app pub date -
May 5, 2021
filing date -
Jul 6, 2020
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Abstract
A short-circuit current limiter has a vacuum switch in a main current path and a current-limiting unit connected in parallel therewith in a commutation current path. The vacuum switch has switching contacts. A material of contact pieces of the switching contacts is selected such that a mean value of the chopping current is at least 8 amperes.
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