Conductor bar for electric machines and method of manufacture thereof

US4403163A · kind A · utility

Assignee

• Brown, Boveri & Cie AG · DE

Inventors

• Rainer Armerding · Ludwigshafen, DE
• Rupert Helmling · St. Leon-Rot, DE
• Waldemar Kopp · Mannheim, DE
• Harry R. Wagner · Warren, US
• Peter Ehrt · Lorsch, DE
• Emil Boser · Mannheim, DE

Key dates

• Filing date: Aug 19, 1981
• Grant date: Sep 6, 1983
• Expiry date: Aug 19, 2001

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S174/29
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

Conductor bar for electric machines operating at high voltage, including at least two subconductor packets being disposed side by side and being formed of mutually insulated subconductors, the subconductors being intertwined in such a manner that each subconductor occupies each possible physical position in at least one location within the conductor bar, an insulating sleeve, a semiconductor layer applied to the insulating sleeve, a further semiconductor layer disposed between the subconductor packets and the insulating sleeve, the conductor bar having a straight portion and narrow sides having a given width, a narrow-side subconductor bar crossing from one subconductor packet to another, the narrow-side subconductor bar being disposed at a given height filling a portion of the given width of the narrow side leaving a remaining width, hardenable cement layers being disposed substantially at the given height flanking the narrow-side conductor bar in vicinity of the crossing and filling the remaining width. The hardenable cement layers are extended over the entirety of the straight portion on each narrow side of the subconductor packets. Conducting strips disposed on the cement layer…