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. 17, 2015
Filed:
Aug. 24, 2012
Junichi Abe, Tokyo, JP;
Shinji Sato, Tokyo, JP;
Tomoko Tanabe, Tokyo, JP;
Naoaki Inoue, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
Capacitors () are provided in the insulators of bushings (), respectively. One ends of the capacitors () are connected to central conductors () side, and the other ends are connected to a tank () side at the ground potential. When a discharge signal from the outside of the tank () reaches the capacitors () through the central conductors (), the capacitors () work as a filter to attenuate and prevent the signal in the frequency band of the discharge waveform from propagating to the inside of the tank (). When an antenna () placed in the tank () receives a signal in the frequency band of the discharge waveform, a discharge detection unit () determines that a discharge inside the tank has been detected.