POWERLINE SURGE PROTECTION
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United States of America Patent
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Issued Date -
Mar 24, 2016
app pub date -
Sep 23, 2014
filing date -
Sep 23, 2014
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A motor drive for an electric machine configured to withstand higher voltages without breakdown and without substantially raising maximum voltage during high voltage surges. The motor drive may include a live line, a second line, a ground line, a capacitor, a surge protector, and a load electrically-coupled with the live line, the second line, and the ground line. The capacitor may be coupled between the load and the second line. The surge protector may have a first varistor, a gas discharge tube (GDT), and a resistor. The GDT may be non-conductive below a trigger voltage and is conductive above the trigger voltage. The first varistor and the GDT may be connected in series between the live line and the ground line and/or the second line and the ground line, and the resistor may extend across a spark gap of the GDT.
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