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:
Jan. 07, 2014
Filed:
Mar. 09, 2011
Gerhard Dobusch, Vienna, AT;
Gerhard Dobusch, Vienna, AT;
Eaton Industries (Austria) GmbH, Schrems, AT;
Abstract
A residual-current circuit breaker includes a core-balance transformer, a first conductor and a second conductor of an electrical supply system which is to be protected being routed through the core-balance transformer, and a secondary winding being arranged on the core-balance current transformer. The secondary winding is connected to a release by circuitry. A test circuit connecting the first conductor and the second conductor has at least a first test resistor and a reset button, in order to provide accurate checking of an ability of residual current tripping to function, the test circuit has a second test resistor arranged in series with the first test resistor by circuitry. The second test resistor is bridged by a bypass line that is routed through the core-balance transformer and at least one first voltage dependent resistor is arranged in the bypass line by circuitry.