Abb Schweiz Ag

Hitachi Energy Switzerland Ag

Hitachi Energy Ltd

Massimo Carmignoto

Roberto Zannol

Rudi Velthuis

Harald Martini

Claire Pitois

Adam Michalik

Gianluca Bustreo

Paolo Pavanello

Orlando Girlanda

Miljenko Hrkac

Spiros Tzavalas

Alessandro Mattozzi

Patricia Ricketts

Emmanouil Logakis

Jayram Yadava

Ilario Scian

Emmanuel Logakis

Scian Ilario

A method for manufacturing an electric winding of an electromagnetic induction apparatus includes providing a conductor structure and forming an electric winding by means of the conductor structure. The conductor structure includes a conductor element extending longitudinally along a main extension direction and one or more spacer bands arranged on corresponding lateral surfaces of the conductor element. Each spacer band includes a supporting structure made of electrically insulating material and spacer elements made of electrically insulating material arranged on the supporting structure. The spacer elements are spaced one from another along the supporting structure. The electric winding extends axially along a winding direction and has a plurality of turns arranged around the winding direction. Each turn of the electric winding is formed by a corresponding longitudinal portion of the conductor element. The spacer elements are interposed between adjacent turns of the electric winding at opposite sides of the turns.

Method and conductor structure for manufacturing an electric winding of an electromagnetic induction apparatus

The present invention relates to an electrical transformer comprising an electrical insulator and a winding of an electrical conductor around a core, said insulator being formed of an essentially non-porous composite material comprising a resin matrix and up to 85% by weight of insulating fibres surrounded by the resin matrix, the composite material having a maximum moisture content of less than 0.5% by weight at 23&#xb0; C. and 50% relative humidity.

Transformer insulation

Growing community of inventors

Montegrotto Terme, Italy

Massimo Carmignoto