Flexible rogowski coil for impulse current measurement

A Rogowski coil and pulse current technology, applied in measuring devices, measuring electrical variables, voltage/current isolation, etc., can solve problems such as enclosure closure and inconvenience, and achieve the effects of convenient and simple installation, extended application range, and good flexibility.

Inactive Publication Date: 2008-02-13
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The disadvantage of the above-mentioned existing rigid Rogowski coil is that the shell is closed, and the curre

Method used

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  • Flexible rogowski coil for impulse current measurement

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[0015] Specific implementation method

[0016] The flexible Rogowski coil for pulse current measurement proposed by the present invention has a structure as shown in FIG. 2, and includes a sleeve 8, a metal shielding layer 3, a flexible skeleton 9, a coil 5, a conductive core wire 10 and an integrator 7. The sleeve 8, the metal shielding layer 3 and the flexible frame 9 are concentrically fixed from the outside to the inside to form a circular ring, and one side of the circular ring is an opening. The coil 5 is wound on the flexible frame 9, the conductive core wire 10 is buried in the flexible frame 9, one end of the coil 5 is connected to one end of the integrator 7, and the other end of the coil 5 is connected to the integrator through the conductive core wire 10 in the flexible frame 9 The other end of the device 7 is connected.

[0017] The sleeve in the above-mentioned flexible Rogowski coil may be made of a heat-shrinkable material.

[0018] The flexible skeleton in the abo...

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Abstract

The invention relates to a flexible Roe coil for pulse current measurement, pertaining to the high-pressure measurement technology in the art of electricians. The invention includes a casing, a metal shielding layer, a flexible frame, a coil, a conductive core wire and an integrator. The casing, metal shielding and flexible frame are relatively fixed as concentric rings from outside to inside and one side of the ring is provided with an opening. The coil is wound on the flexible frame, the conductive core wire is buried in the flexible frame and the coil is connected with the integrator. The the flexible Roe coil of the invention improves the prior rigid casing and coil frame into a flexible structure and the flexible coil is designed to have an opening with the head end connected with the tail end through a connector, so that Roe coil has the advantages of good flexibility, easy installation and dismantling, compact and portable, simple and convenient installation, which is applicable to field use. Compared with the prior rigid Roe coil, the invention greatly expands the application range of Roe coil.

Description

technical field [0001] The invention relates to a flexible Rogowski coil for pulse current measurement, in particular to the measurement of lightning current, and belongs to the high-voltage measurement technology in the field of electric engineering. Background technique [0002] The measurement of impulse current has always been a relatively difficult task. For example, the measurement of lightning current in actual production is very complicated. Currently, shunts and Rogowski coils are mainly used as current sensors for lightning current measurement. Although the shunt has the advantages of high precision and wide response frequency, because it is connected in series in the circuit under test and has no electrical isolation from the subsequent measurement equipment, it will threaten the safety of precision equipment and test personnel when the measured current is large. Another method generally uses a Rogowski coil to induce the lightning current as a voltage signal on t...

Claims

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Application Information

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IPC IPC(8): G01R15/00G01R15/18G01R19/00
Inventor 陈水明刘俊王辉何金良
Owner TSINGHUA UNIV
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