Hitachi Energy Ltd

Abb Schweiz Ag

Hitachi Energy Switzerland Ag

Abb Research Ltd.

Abb Power Grids Switzerland Ag

Orlando Girlanda

Gunnar Russberg

Olof Hjortstam

Claire Pitois

Ener Salinas

Goran Eriksson

Manoj Pradhan

Roberto Zannol

Gianluca Bustreo

Rudi Velthuis

Harald Martini

Göran Eriksson

Paolo Pavanello

Adam Michalik

Santanu Singha

Robert Sekula

Rongsheng Liu

Pawel Klys

Liliana Arevalo

Jan Anger

Fredrik Sahlen

Miljenko Hrkac

Uno Gäfvert

Valentina Valori

Lars Wagberg

Torbjorn Brattberg

Tomasz Nowak

Lars Schmidt

Grzegorz Kmita

Spiros Tzavalas

Martina Perin

Massimo Carmignoto

Jayram Yadava

Alessandro Mattozzi

Mark Czernuschka

Mark Jovalekic

Emmanouil Logakis

Yury Solovyev

Michal Kozupa

Ilario Scian

Emmanuel Logakis

Julia Forslin

Elson Montibon

Robert Platek

Patricia Ricketts

Lars Schimdt

Anneli Jendenmalm

Lars WÅGBERG

Torbjörn Brattberg

Scian Ilario

Zdenko Cabrajic

David Göransson

A spacer tape is provided for spacing apart turns of a winding, which comprises a tape having an upper surface, a lower surface and a longitudinal axis, wherein the lower surface is adhesable and configured to be adhered to a conductor forming a turn of the winding, and spacers with an upper surface and a lower surface arranged on the tape, wherein the lower surface of the spacers is adhered to the upper surface of the tape, and wherein the upper surface of the spacers are adhesable and configured to be adhered to the conductor forming an adjacent turn of the winding.

Spacer tape, method for manufacturing a winding and winding

The present disclosure relates to a support structure for at least one winding of an inductive device, in particular a power transformer, comprising a press structure configured to transfer and distribute an compression force from a holding structure to the at least one winding, an insulator structure configured to electrically insulate the holding structure from the at least one winding, and a coolant flow structure configured to guide and distribute a flow of a liquid coolant to or from different parts of the at least one winding. The press structure, the insulator structure and the coolant flow structure are formed as one integrated part comprising a polymer material. The integrated part comprises a plurality of orifices for passage of the liquid coolant from a first side facing the holding structure to a second side facing the at least one winding.

Support structure for at least one winding of a power transformer, power transformer and method for manufacturing

A high-voltage column current transformer comprising a column insulating body and a head arranged thereon is disclosed, whereby the head defines a volume and comprises arranged therein a primary winding conductor, a secondary winding core assembly having secondary winding leads and a conical insulator spacer tapered from a base to an apex with a lateral face therebetween, the conical insulator spacer is arranged with its base on a bottom of the head facing the column insulating body and its apex holds the secondary winding core assembly distant from a wall of the head, the conical insulator spacer comprises at least one ring-shaped electrode embedded in and surrounding the base and another flat, circular shaped electrode embedded in and surrounded by the apex, and the conical insulator spacer comprises at least one opening in the lateral face.

High-voltage column current transformer

The present disclosure relates to an electrical insulator, for an inductive device filled with an electrically insulating cooling fluid. The insulator defines a plurality of internal channels for allowing the fluid to flow there through to improve circulation of the fluid within the inductive device.

Insulator having internal cooling channels

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

A cellulose based pressboard for insulation in an electrical power transformer, the pressboard includes polyvinylamine (PVAm), and polyacrylamide (PAM), in a combined amount of between 0.01% and 20% by weight of the pressboard.

Pressboard

Growing community of inventors

Västerås, Sweden

Orlando Girlanda