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A current transformer with amorphous alloy magnetic core

A technology for current transformers and amorphous alloys, applied in the direction of inductors, transformer/inductor shells, transformer/inductor coils/windings/connections, etc. Reduced saturation magnetization and other issues, to achieve long service life, low work loss, and good weather resistance

Active Publication Date: 2019-03-05
罗定市嘉裕电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the presence of a large number of these elements also greatly reduces the saturation magnetization of elemental iron, resulting in a decrease in the magnetic properties of the iron-based amorphous alloy system.

Method used

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  • A current transformer with amorphous alloy magnetic core

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specific Embodiment 1

[0023] The amorphous alloy magnetic strip provided in this embodiment contains the following elements by mass percentage: 6% silicon, 3% boron, 1.2% aluminum, 0.9% cobalt, 0.08% yttrium, 0.3% molybdenum, Gallium element 0.13%, and the balance iron element.

[0024] The saturation flux density of the amorphous alloy magnetic strip provided in this embodiment is 2.4T, and the excitation power at 1.35T / 50Hz is 0.30VA / kg.

specific Embodiment 2

[0025] The amorphous alloy magnetic strip provided in this embodiment contains the following elements by mass percentage: 4% silicon, 2% boron, 1.5% aluminum, 1.1% cobalt, 0.10% yttrium, 0.2% molybdenum, Gallium element 0.10%, and the balance iron element.

[0026] The saturation flux density of the amorphous alloy magnetic strip provided in this embodiment is 2.2T, and the excitation power at 1.35T / 50Hz is 0.38VA / kg.

specific Embodiment 3

[0027] The amorphous alloy magnetic strip provided in this embodiment contains the following elements by mass percentage: 5% silicon, 2.5% boron, 1.0% aluminum, 0.8% cobalt, 0.05% yttrium, 0.4% molybdenum, Gallium element 0.15%, and the balance iron element.

[0028] The saturation flux density of the amorphous alloy magnetic strip provided in this embodiment is 2.0T, and the excitation power at 1.35T / 50Hz is 0.34VA / kg.

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Abstract

The invention discloses an amorphous alloy magnetic core current transformer. The amorphous alloy magnetic core current transformer comprises an amorphous alloy magnetic core; the amorphous alloy magnetic core comprises a magnetic strip material winding ring, a magnetic core protection thin film, a transformer secondary side winding and a transformer shielding protection thin film; the magnetic strip material winding ring is wound into an annular shape by an amorphous alloy magnetic strip material; the surface of the magnetic strip material winding ring is coated with the magnetic core protection thin film; the magnetic core protection thin film is wound with the transformer secondary side winding; the surface of the transformer secondary side winding is also coated with the transformer shielding protection thin film; and the amorphous alloy magnetic strip material comprises the following elements: 4-6% of silicon, 2-3% of boron, 1.0-1.5% of aluminum, 0.8-1.1% of cobalt, 0.05-0.10% of yttrium, 0.2-0.4% of molybdenum, 0.10-0.15% of gallium and the balance of iron. The amorphous alloy magnetic core current transformer has relatively high electromagnetic performance, relatively low magnetic power and can satisfy actual use requirements.

Description

technical field [0001] The invention relates to the technical field of precision transformer products, in particular to an amorphous alloy magnetic core current transformer. Background technique [0002] Amorphous alloy magnetic strips have excellent magnetic properties and are mainly used for winding small high-precision transformer cores, current transformer cores and voltage transformer cores; magnetic cores made of amorphous alloy magnetic strips Compared with the magnetic core made of silicon steel sheets, it can save energy by 60% to 80%, and the pollution in the preparation process is low. Therefore, the amorphous alloy magnetic strip is a more energy-saving and environmentally friendly material. Iron-based amorphous alloy magnetic material is an alloy material composed of iron, silicon, boron and other elements. Its high saturation magnetic induction, magnetic permeability, excitation current and iron loss are superior to silicon steel sheets. [0003] In addition t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F38/30H01F27/25H01F1/147H01F27/28H01F27/02H01F41/02C22C45/02
CPCC22C33/003C22C45/02H01F1/14791H01F27/02H01F27/25H01F27/288H01F38/30H01F41/0226
Inventor 丁鸿飞胡昌才杨华荣
Owner 罗定市嘉裕电子有限公司