Method of extinguishing an electric arc in a low or high voltage switchgear by pulse discharge
OwnerChoi Min Pak, Sang Hwan Kwoninventors
Life of this patent
Estimating the term…
Abstract
The present invention relates to a method of extinguishing an electric arc, which occurs in low or high voltage switchgears, by pulse discharge. The electric arc is cut like a “fuse” by connecting a condenser (201) to both ends of the electric arc at the moment when it occurs and discharging the condenser (201) through the electric arc. The condenser is charged using a resistor (202) and a diode (203), and its discharge is adjusted by some auxiliary contacts.
Claims8
A method of extinguishing an electric arc of a switchgear by pulse discharge, where the electric arc is cut like a “fuse” with a loud explosion sound by connecting the nonpolar condenser fully charged up to the maximum of the supply voltage (maximum voltage), the capacity of which can provide with much higher discharge energy than the arc energy, directly to both ends of the electric arc.
Dependencies are inferred from the claim text.