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Current detection system, and method and device for detecting current

A current detection and detection device technology, applied in the circuit field, can solve the problems of unsuitable integration, large volume of CT and electric meter, etc.

Active Publication Date: 2019-05-17
HUAWEI DIGITAL POWER TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to technical limitations, the volume of CT and ammeter is too large to be integrated in electrical equipment

Method used

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  • Current detection system, and method and device for detecting current
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  • Current detection system, and method and device for detecting current

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Embodiment Construction

[0034] The technical solution in this application will be described below with reference to the accompanying drawings.

[0035] In this application, "at least one" means one or more, and "multiple" means two or more. "And / or" describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and / or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone, where A, B can be singular or plural. The character " / " generally indicates that the contextual objects are an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (unit) of a, b or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c can be single or multiple. In addition, in the embodiments of the present application, words such as "first" and "second" do not limit the quant...

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Abstract

The invention provides a current detection system, and a method and device for detecting current. The current detection system comprises a printed circuit board and N groups of amplifying devices, andeach group of amplifying devices in the N groups of amplifying devices comprises at least one amplifying device , wherein N is a positive integer larger than or equal to 1, and N Rogowski coils are mounted on the printed circuit board; the n Rogowski coil of the N Rogowski coils and the n current-carrying conductor of N current-carrying conductors are concentrically mounted, and the planes of the n Rogowski coil and the n current-carrying conductor are perpendicular; and the output end of the n Rogowski coil is connected with the input end of the first amplifying device ofthe n group of amplifying devices of the N groups of amplifying devices. The current detection system is integrated on electrical equipment conveniently, and furthermore, if each group of the amplifying devices comprises multiple amplifying devices, the current detection system can be used in different electrical equipment.

Description

technical field [0001] The present application relates to the field of circuits, and more specifically, to a current detection system, a method for detecting current, and a detection device. Background technique [0002] With the progress of digital intelligence, the intelligent requirements of electrical equipment are also getting higher and higher. At present, the current detection function of electrical equipment is basically realized by using a current transformer (current transformer, CT) and an ammeter. However, due to technical limitations, the volume of CT and ammeter is too large to be integrated in electrical equipment. Contents of the invention [0003] The present application provides a current detection system, a method for detecting current and a detection device, which can be easily integrated into electrical equipment. [0004] In the first aspect, the embodiment of the present application provides a current detection system, the current detection system ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R19/25G01R1/30
CPCG01R1/30G01R15/181G01R19/0092G01R19/25H03F3/45475H05K1/181H05K2201/1003H05K2201/10151
Inventor 伍永华张敏翔
Owner HUAWEI DIGITAL POWER TECH CO LTD
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