The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 30, 1976
Filed:
Oct. 28, 1975
Karl Kriechbaum, Kassel-K., DT;
Licentia Patent-Verwaltungs-G.m.b.H., Frankfurt am Main, DT;
Abstract
In a high voltage circuit breaker arranged to be connected in series with a conductor for breaking the flow of current through the conductor, the breaker including at least two identical breaks, capacitors shunting all of the breaks for producing a voltage gradient, at least one resistor connected in shunt with at least one of the breaks, and a switch connected with the resistor and arranged to be operated in a manner such that it does not make or interrupt a current, the operation of the switch is controlled by a control device connected for operating the switch and a current transformer connected to the control device and arranged for monitoring the current flow through the conductor to provide an output which causes, during a break operation of the circuit breaker, the closing of the switch shortly before the simultaneous opening of all of the breaks only when the current through the conductor exceeds a certain value.