SOLID INSULATED SWITCH
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United States of America Patent
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Issued Date -
Jul 6, 2023
app pub date -
Mar 30, 2021
filing date -
May 29, 2020
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Abstract
The present disclosure relates to a solid insulated switch using a semiconductor comprising a main circuit unit connected between systems on both sides thereof, and which has a first semiconductor and a second semiconductor arranged in a series; a snubber circuit having a capacitor and a resistor arranged in a series, one end connected in parallel to the front end of the first semiconductor switch, and the other end connected in parallel to the rear end of the second semiconductor switch; a freewheeling circuit, having a diode and a resistor arranged in a series, one end connected to a common contact between the first semiconductor switch and the second semiconductor switch, and the other end connected to the ground; and a mechanical switch for ensuring physical insulation after fault current interruption.
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