Abb Technology Ag

Hoan D Le

Steve A Shaw

Marty Lynn Trivette

Oliver Claus

Edgar Dullni

Stephen Clifford

Libor Ruprecht

The invention is directed to a transformer and a method of manufacturing the same, wherein at least a portion of a core is disposed inside a shield case formed from a polymeric resin composition containing conductive particles. An encasement comprising a dielectric resin encapsulates the shield case. An electrical conductor is electrically connected to the shield case and is accessible from the exterior of the encasement.

Dry-type transformer with a polymer shield case and a method of manufacturing the same

A resin cast transformer having a core covered by a cushioning material is provided. The cushioning material is in contact with the core and includes a force absorption layer adjoining a force distribution layer. The force distribution layer is harder than the force absorption layer.

Cushioning materials and method for applying the same to resin cast transformers

A power switching device for use in a power distribution network has a conductive element that is shaped in a non-cylindrical form. The non-cylindrical shape of the conductive element allows the non-conductive material such as epoxy that is used to form the body of the device to securely fasten the conductive element in place to thereby keep the conductive element from rotating when excessive rotational force is applied to the conductor. The conductive element can be shaped with a protrusion or in a C-shape. The protrusion and C-shape help prevent rotation of the conductive element when a threaded bolt is applied to secure a power cable to one end of the conductive element.

Apparatus for securing a conductor in a power switching device

Transformer

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Wendell, NC, United States of America

Hoan D Le