Abb Schweiz Ag

Abb Power Grids Switzerland Ag

Luis Sánchez

Rafael Murillo

Antonio Nogués Barrieras

Carlos Roy Martín

Lorena Cebrián Lles

Carlos Roy

Lorena Cebrian

Pilar Estella

Pedro Marqués Saldaña

Carlos Mainar Joven

Rahul Shah

Antonio Nogues

Antonio NOGUÉS Barrieras

Carlos Roy MARTÍN

Lorena CEBRIÁN Lles

Lorena Cebrian Lles M

A dry type cast-coil transformer having a voltage rating of 1 Kv and above, including: at least one coil with a plurality of conductor turns; a cast comprising a polymeric resin, encompassing the coil and having a cast surface; a ferromagnetic core on which the coil with the encompassing cast is mounted; an insulated cable termination connected to the coil, wherein the connection point between the insulated cable termination and the coil is within the cast, and wherein a flexible portion of the insulated cable termination further extends from the cast surface outwards and comprises a plurality of metal wires.

Dry type cast transformer with flexible connection terminal

A cooling arrangement for a dry-type transformer. The arrangement includes blowing equipment configured to blow a gas flow, and an opening positionable in a clamping structure of the transformer. The opening is configured to allow the gas flow to pass from the blowing equipment towards a winding of the transformer, so that the winding is properly cooled. The opening comprises an electric protecting means for dielectric protection of the clamping structure. A transformer including such cooling arrangement is also disclosed.

Cooling arrangement

A transformer may comprise a winding wrapped around a magnetic core, the winding having at least one winding portion extending between the magnetic core and the exterior of the winding in radial direction. The winding may comprise at least a first conductor and at least a second conductor, arranged radially adjacent to each other in each winding portion with the interposition of an insulating layer, wherein the first conductor is arranged radially inwardly with respect to the second conductor for part of each winding portion length, and radially outwardly with respect to the second conductor for another part of each winding portion length.

Transformers with alternately radially disposed first and second conductors

Growing community of inventors

Vigo, Spain

Luis Sánchez