Magnetic core that is suitable for use in a current transformer, method for the production of a magnetic core and current transformer with a magnetic core

US6580347B1 · kind B1 · utility

Assignee

• Vacuumschmelze GmbH & Co. KG · DE

Inventors

• Detlef Otte · Gelnhausen, DE
• Jörg Petzold · Bruchköbel, DE

Key dates

• Filing date: Sep 17, 2001
• Grant date: Jun 17, 2003
• Expiry date: Sep 17, 2021

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01F38/28
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

Magnetic cores including coiled amorphous ferromagnetic alloy strips are addressed. The composition of the alloy essentially corresponds to the formula Coa(Fe1−xMnx)bNicXdSicBfCg, where X is at least one of the elements V, Nb, Ta, Cr, Mo, W, Ge, and P; and a, b, c, d, e, f, and g are indicated in atom percent and meet the following conditions: 40≦a≦82; 3≦b≦10, 0≦c≦30; 0≦d≦5; 0≦e≦20; 7≦f≦26; 0≦g≦3; with 15≦d+e+f+g≦33 and 0≦x≦1.