A passive rogowski coil electronic current transformer for gis

A current transformer, electronic technology, applied in the direction of voltage/current isolation, measuring current/voltage, instruments, etc., can solve the problems of unstable photoelectric switching, complex energy supply system, etc., and it is easy to guarantee the operation life and overcome the narrow frequency band , good linear effect

Active Publication Date: 2016-09-14
JIANGSU JINGJIANG INSTR TRANSFORMER FACTORY
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The new intelligent GIS uses a new type of electronic transformer. At present, the active combination of laser power supply and CT energy supply is generally used. The energy supply system is complex and the photoelectric switching is unstable. The problem of passive way of GIS with Rogowski coil electronic current transformer is imminent

Method used

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  • A passive rogowski coil electronic current transformer for gis
  • A passive rogowski coil electronic current transformer for gis
  • A passive rogowski coil electronic current transformer for gis

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Embodiment Construction

[0011] The present invention is described in detail below in conjunction with accompanying drawing and specific embodiment:

[0012] see figure 1 and figure 2 , a passive Rogowski coil electronic current transformer for GIS, including a housing 3, the housing 3 is sealed and filled with an insulating gas 5, and the housing 3 is also provided with a Rogowski coil 4 and two sensing elements 2, The sensing element 2 is magneto-optical glass, the bus bar 1 is arranged inside the sensing element 2, the sensing element 2 is connected with the transmission optical fiber 7, the aviation terminal 6 is arranged on the casing 3, and the transmission optical fiber 7 is connected with the electric unit 8 through the aviation terminal 6 signal conversion.

[0013] The invention adopts Rogowski coil as protection level, magneto-optical glass as sensing element, applies Faraday's law of electromagnetic induction and Faraday's magneto-optical effect principle, and fixes busbar, protection l...

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Abstract

The invention relates to a passive Rogowski coil electronic current transformer for GIS. At present, the new intelligent GIS generally adopts the active combination method of laser power supply and CT energy supply. The energy supply system is complex and the photoelectric switching is unstable. The object of the present invention is to provide a passive Rogowski coil electronic current transformer for GIS, which not only has a simple structure, but also has reliable precision. The invention is a passive Rogowski coil electronic current transformer for GIS, which includes a shell, the shell is sealed and filled with insulating gas, a Rogowski coil and two sensing elements are arranged in the shell, and a bus bar is arranged in the sensing element , the sensing element is connected with the transmission optical fiber, the housing is provided with an aviation terminal, and the transmission optical fiber is connected with the electrical unit through the aviation terminal for signal conversion. The invention is easy to install, the output is all small voltage signals, and can be directly applied to intelligent GIS.

Description

technical field [0001] The invention belongs to the technical field of electrical equipment, in particular to a passive Rogowski coil electronic current transformer for GIS. Background technique [0002] With the continuous improvement of power system automation level, intelligent GIS has begun to appear and gradually replace the traditional primary and secondary separation GIS. The new intelligent GIS uses a new type of electronic transformer. At present, the active combination of laser power supply and CT energy supply is generally used. The energy supply system is complex and the photoelectric switching is unstable. The problem of passive way of GIS with Rogowski coil electronic current transformer is imminent. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a passive Rogowski coil electronic current transformer for GIS, which not only has a simple structure, but also has reliable prec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R15/24G01R19/00
Inventor 于杰陆汉兵黄麟
Owner JIANGSU JINGJIANG INSTR TRANSFORMER FACTORY
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