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. 09, 2021
Filed:
Jan. 30, 2020
Bender Gmbh & Co. KG, Gruenberg, DE;
Julian Reitz, Gruenberg, DE;
Eckhard Broeckmann, Giessen, DE;
Bender GmbH & Co. KG, Gruenberg, DE;
Abstract
A method and a test apparatus for determining the elements of a dielectric equivalent circuit diagram for an insulation of an electric system and to an insulation monitoring device. All data points of the system's step response are stored for a measuring period T, and fault resistance Rand an initial value Cof leakage capacitance Care calculated. After this determination of fault resistance Rand initial value C, the elements of absorption element Rand Cand leakage capacitance Care determined by numeric signal processing by using an approximation algorithm which continuously simulates the recorded step response. For simulating the step response, a transfer function G(s) modelled by the equivalent circuit diagram having equivalent circuit diagram elements R, C, R, Cand measurement resistance Ris formed analytically and the output signal is calculated, which is described using transfer function G(s), by means of the step function.