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High-voltage current transformer based on quantum precision measurement

A current transformer, precision measurement technology, applied in the direction of voltage/current isolation, etc., can solve the problems of anti-interference temperature drift of electronic devices and optical devices, and achieve the effect of improving accuracy.

Inactive Publication Date: 2019-08-27
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current measurement device based on the Faraday magneto-optical effect has exposed many problems in practical engineering applications, such as anti-interference problems, temperature drift problems, precision problems, etc. of electronic and optical devices.

Method used

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  • High-voltage current transformer based on quantum precision measurement
  • High-voltage current transformer based on quantum precision measurement
  • High-voltage current transformer based on quantum precision measurement

Examples

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Embodiment Construction

[0045] The specific implementation manners of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation manners described here are only used to illustrate and explain the implementation manners of the present invention, and are not intended to limit the implementation manners of the present invention.

[0046] In the embodiments of the present application, unless otherwise stated, the used orientation words such as "up, down, top, bottom" are generally for the directions shown in the drawings or for vertical, vertical or The term used to describe the mutual positional relationship of each component in terms of the direction of gravity.

[0047] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second" and so on are only for descriptive purposes, and should not...

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Abstract

The invention provides a high-voltage current transformer based on quantum precision measurement, and belongs to the technical field of current precision measurement. The high-voltage current transformer comprises a plurality of quantum sensors, an insulation cavity, a quantum detection system and a sleeve insulation layer, wherein the quantum sensors are used for measuring the magnetic field intensity around a measured current-carrying conductor; the number of the quantum sensors is multiple of 4; the quantum sensors are uniformly distributed on a virtual circumference taking the center axisof the current-carrying conductor as the circle center and the preset length as the radius; the insulation cavity is formed between the current-carrying conductor and the quantum sensors, is filled with insulation gas used for avoiding the capacitance effect; the quantum detection system is connected with the quantum sensors through input lines and output lines, and is used for obtaining the magnetic field intensity around the current-carrying conductor through the quantum sensors, and calculating a current of the current-carrying conductor according to the magnetic field intensity; the sleeveinsulation layer is used for supporting and protecting the input lines and the output lines; and the insulation cavity is formed between the sleeve insulation layer and the input and output lines.

Description

technical field [0001] The invention relates to the technical field of precision measurement of current, in particular to a high-voltage current transformer based on quantum precision measurement. Background technique [0002] With the continuous advancement of smart grid construction, traditional high-voltage electrical equipment is gradually developing in the direction of intelligence, modularization, miniaturization, multi-function and maintenance-free. The traditional electromagnetic current measurement device is difficult to adapt to the development requirements of smart grid due to the narrow measurement frequency band, small dynamic range, and analog output. The current measuring device based on the Faraday magneto-optical effect has the advantages of simple insulation structure, no magnetic saturation and ferromagnetic resonance, large transient response range, light weight, small size, digital output signal, etc., and adapts to the development direction of smart gri...

Claims

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Application Information

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IPC IPC(8): G01R15/18
CPCG01R15/18
Inventor 赵龙胡世骏高博郑国强徐斌汪玉王鑫仇茹嘉杨海涛谢毓广丁津津计长安潘丽珠毛荀程石陈凡李圆智李远松王小明何开元
Owner STATE GRID CORP OF CHINA
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