Patent · US Expired

Transformer with forced liquid coolant

US6838968B2 · kind B2 · utility

7Cited by

11References

16Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Wolfgang Nick · Nürnberg, DE
Reinhard Schlosser · Bernried, DE
Heinz Schmidt · Steinfeld (Oldenburg), DE
Peter van Hasselt · Erlangen, DE

Key dates

Filing date	Oct 2, 2003
Grant date	Jan 4, 2005
Priority date	—
Expiry date	Oct 2, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E40/60
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

In order to cool the windings, core and optionally the wall of the element (1) receiving the windings (3,4) and the core (2) as effectively as possible, conducting surfaces (5, 6, 8,15) are disposed inside said element in such a way that the flow of coolant initially passes along the windings (3,4), followed by the limbs (21,22) of the core surrounded by the windings, and subsequently the other areas (23, 24, 1). Said arrangement of conducting surfaces is particularly suitable for use with transformers having superconductive windings made of HTSL conductor material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.