Patent ID: 9209607
Filing Date: 2015-12-08
Classification: H01C,H01T,H02H

Abstract:
1. A device for discharging an electrical overvoltage, comprising: an overvoltage discharge unit having a non-linear current/voltage characteristic at least in sections thereof; a first terminal electrode of said overvoltage discharge unit connected to a high-voltage terminal; a second terminal electrode of said overvoltage discharge unit connected to one of a low voltage or ground terminal; an insulting body surrounding said overvoltage discharge unit at least in said sections thereof; and a cutting element electrically connected to said one of said low voltage or ground terminal and disposed close to a high voltage section of said overvoltage discharge unit, said cutting element having a cutting edge positioned relative to said insulating body to cut into said insulating body when said insulating body distends as a result of an electrical overload to enable an arc to be sparked and stabilized between said high voltage section and said cutting element.