High-power pulse transformer for short high-voltage and/or high-current pulses

US4763093A · kind A · utility

Assignee

• Kraftwerk Union Aktiengesellschaft · DE

Inventors

• Hans-Jurgen Cirkel · Erlangen, DE
• Willi Bette · Erlangen, DE

Key dates

• Filing date: Aug 21, 1986
• Grant date: Aug 9, 1988
• Expiry date: Aug 21, 2006

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01F30/10
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A high-power pulse transformer for short, high-voltage and/or high-current pulses includes: PA0 a base plate in a container, an insulating, cooling dielectric liquid with a given heat transfer coefficient in the container; PA0 at least one magnet core on the base plate with self-enclosed magnet legs around a central window and wide sides with axes normal to the axis of the window; PA0 at least an undervoltage and an overvoltage winding in the liquid wrapped in each other around parts of the magnet core immersed in the liquid and linked to the magnet core and to each other, the windings including turns of substantially mutually doubly-wound electrically insulated metallic conductors having winding ends disposed in leadthroughs in the container walls, the conductors having surfaces with a heat transfer coefficient higher than that of the dielectric liquid; PA0 the turns of each winding being self-supported and spaced apart from the turns of the other winding by a first minimum spacing and spaced from the magnet core by a second minimum spacing; PA0 support insulators partly disposed in the liquid and adjacent and spaced from at least one side of the magnet core by a third minimum spa…