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:
Oct. 08, 2019
Filed:
Aug. 16, 2017
Siemens Aktiengesellschaft, Munich, DE;
Hans-Joachim Herrmann, Markt Erlbach, DE;
Kai Trunk, Erlangen, DE;
Edmund Eisenburger, Erlangen, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A method protects an electrical generator or power station unit connected to a power distribution network or to a power transmission line. A short circuit near the generator in the power distribution network or on the power transmission line is detected, and a short-circuit detection signal is generated, when a set of predetermined trigger conditions is satisfied. The electrical generator is disconnected from the network or line if, after generation of the short-circuit detection signal, the trigger conditions are satisfied at the instant when a predetermined delay time elapses, and have remained satisfied until the predetermined delay time elapses. The delay time is a variable duration which is reestablished regularly or irregularly before it elapses, as a function of the operating profile after the short-circuit occurrence, and the generator is disconnected if the trigger conditions are satisfied at the instant when the delay time elapses.