Rigid opening and closing type Rogowski coil

A Rogowski coil, open-close technology, applied in the direction of coils, voltage/current isolation, electrical components, etc., can solve problems affecting the accuracy of Rogowski coils in measuring current, to compensate for magnetic field loss, improve current measurement accuracy, and reduce magnetic flux leakage Effect

Inactive Publication Date: 2021-06-22
JIANGYIN SPARK ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to facilitate the installation of the equipment, the Rogowski coils of some equipment use a split structure, which can be more conveniently installed in different application scenarios, but the Rogowski coils using the split structure will inevitably have gaps after installation. The introduction of gaps Will affect the accuracy of Rogowski coil measuring current

Method used

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  • Rigid opening and closing type Rogowski coil
  • Rigid opening and closing type Rogowski coil
  • Rigid opening and closing type Rogowski coil

Examples

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Effect test

Embodiment Construction

[0027] The specific implementation manners of the present invention will be further described below in conjunction with the drawings and examples. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0028] like Figures 1 to 6 Shown is an embodiment of a rigid open-close Rogowski coil of the present invention, comprising a left semi-annular housing 1 and a right semi-annular housing 2 that are connected to each other, and a left semi-annular coil 3 and a right semi-annular coil 4 The formed Rogowski coil 5; wherein, the mating connection parts at both ends of the left semi-annular housing 1 and the right semi-annular housing 2 respectively form a dislocation overlapping, and the left semi-annular coil 3 is installed on the left semi-annular In the casing 1, the right half-ring coil 4 is installed in the right half-ring casing 2; when the left half-rin...

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Abstract

The invention relates to the technical field of Rogowski coils, in particular to a rigid opening and closing type Rogowski coil which comprises a left semi-annular shell, a right semi-annular shell and a Rogowski coil body composed of a left semi-annular coil body and a right semi-annular coil body, the left semi-annular shell and the right semi-annular shell are mutually connected in an involution manner, the left semi-annular shell and the right semi-annular shell are respectively overlapped in a staggered manner at involution connection parts at two ends, the left semi-annular coil is mounted in the left semi-annular shell, and the right semi-annular coil is mounted in the right semi-annular shell; when the left semi-annular shell and the right semi-annular shell are in a closed state, the left semi-ring coil and the right semi-ring coil are arranged in a front-back staggered mode and form a closed whole ring in the front-back projection direction. According to the invention, the current measurement precision of the open-close Rogowski coil is improved.

Description

technical field [0001] The invention relates to the technical field of Rogowski coils, in particular to a rigid open-close Rogowski coil. Background technique [0002] At present, there are mainly two ways to measure the current on the power frequency circuit: CT and Rogowski coil. Among them, the CT coil often uses silicon steel as the magnetic material. CTs using silicon steel materials often have the problems of cumbersome structure, heavy weight, low self-resonant frequency, and easy saturation under high current. [0003] The Rogowski coil is a toroidal coil evenly wound on a non-ferromagnetic material. It is used to measure the current on a power frequency circuit. It has the advantages of simple structure, light weight, and not easy to saturate under high current. The Rogowski coil does not contain ferromagnetic materials, has no hysteresis effect, has almost zero phase error, and has no magnetic saturation phenomenon, so the measurement range can range from several ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R15/18H01F5/02
CPCG01R15/18H01F5/02
Inventor 蒋大维袁芬朱慧
Owner JIANGYIN SPARK ELECTRONICS TECH
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