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:
Jul. 02, 2019
Filed:
Jun. 01, 2012
Daigo Matsumoto, Chiyoda-ku, JP;
Shigeo Fujii, Chiyoda-ku, JP;
Daigo Matsumoto, Chiyoda-ku, JP;
Shigeo Fujii, Chiyoda-ku, JP;
MITSUBISHI ELECTRIC CORPORATION, Chiyoda-Ku, Tokyo, JP;
Abstract
In a voltage detection device for a transforming apparatus, a voltage divider is constituted by providing an intermediate electrode between a central conductor and a tank of the transforming apparatus, to detect a voltage Eof the central conductor based on a voltage Eof the voltage divider. The voltage detection device for a transforming apparatus includes an incomplete integration circuit having a reverse characteristic to an input/output voltage amplitude ratio-frequency characteristic of a high-pass filter formed by a floating electrostatic capacitance between the central conductor and the intermediate electrode, an earth electrostatic capacitance between the intermediate electrode and the tank, and a voltage dividing resistor connected in parallel to the earth electrostatic capacitance, and a signal processing circuit that outputs a value based on an output voltage Eof the incomplete integration circuit as the voltage Eof the central conductor.