Brevet : EP3196662 - DISPOSITIF DE TRAITEMENT DE SIGNAL DE DÉCHARGE PARTIELLE

Titre

DISPOSITIF DE TRAITEMENT DE SIGNAL DE DÉCHARGE PARTIELLE

N° et date de publication de la demande

EP3196662 - 26/07/2017

Type de la demande

A1

N° et date de dépôt

EP14901997.8 - 17/09/2014

N° et date de priorité

PCT/JP2014074519 - 17/09/2014

Famille de brevets

EP3196662A1 ; WO2016042614A1 ; CN106716153A ; JPWO2016042614A1 ; US2017192048A1

Abrégé

A partial discharge signal processing device of the present invention is provided with: a partial discharge signal receiving unit (1) disposed inside a high voltage electric machine device; a partial discharge signal processing unit (2); and a coaxial cable (3) connecting the partial discharge signal receiving unit (1) and the partial discharge signal processing unit (2). In addition, the partial discharge signal receiving unit (1) comprises an electromagnetic wave receiving unit 1a that receives electromagnetic waves generated by partial discharge. Further, the partial discharge signal processing unit (2) comprises: a detection unit (2a) that detects a partial discharge signal transmitted through the coaxial cable (3); a band limiting unit (2b) that limits the frequency bandwidth of the partial discharge signal; an attenuation amount correction unit (2c) that corrects an attenuated partial discharge signal; and a signal output unit (2d) that outputs, to an external device, the corrected partial discharge signal.