Intelligent hexagonal diagram detection device and detection method

A detection device and hexagonal diagram technology, applied in the direction of measurement device, emergency protection circuit device, measurement power, etc., can solve the problems of low detection efficiency, complex phase derivation process of transformer low-voltage energization hexagonal diagram, etc., to reduce the technical threshold and improve detection. The effect of efficiency

Pending Publication Date: 2022-04-12
SHUOHUANG RAILWAY DEV
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Problems solved by technology

[0003] The current test method is usually to introduce a 380V AC power supply at the current transformer on the high voltage side of the transformer, and ground the switchgear on the low voltage side of the transformer, draw a hexagonal diagram of the voltage and current phasors on the high and low voltage side by monitoring means, and then manually check the The drawn hexagonal diagram is judged to be correct, so as to judge whether the secondary wiring of current and voltage is correct. In addition, the phase derivation process of the low-voltage energized hexagonal diagram of transformers of various types of wiring groups is extremely complicated. It can be seen that the current testing methods have the problem of low detection efficiency.

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  • Intelligent hexagonal diagram detection device and detection method
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  • Intelligent hexagonal diagram detection device and detection method

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Embodiment Construction

[0051] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the application are given in the drawings. However, the present application can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this application more thorough and comprehensive.

[0052] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the application are only for the purpose of describing specific embodiments, and are not intended to limit the application.

[0053] It can be understood that the terms "first", "second" and the like used in this application may be...

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Abstract

The invention relates to an intelligent hexagonal diagram detection device and method, and the device comprises a power module and a processing circuit which are connected with each other. The power supply module is used for supplying power to the transformer high-voltage side current transformer and the processing circuit; the processing circuit is used for being connected with substation communication processing equipment, acquiring electric parameter data generated by a transformer protection measurement and control device connected with the substation communication processing equipment, determining a vector diagram of a hexagonal diagram according to the electric parameter data, and outputting a wiring state detection result based on the vector diagram of the hexagonal diagram; the detection efficiency is effectively improved.

Description

technical field [0001] The application relates to the technical field of electrical test instruments, in particular to an intelligent hexagonal diagram detection device and detection method. Background technique [0002] After the transformer is put into the new substation or the old substation is renovated and replaced with a new transformer, it is necessary to do the hexagonal diagram experiment before the transformer is put into operation, and check the current phase relationship between the high and low voltage sides of the transformer, as well as the differential current and braking current values. Whether the phase sequence, polarity and balance factor calculation of each current circuit connection of the differential protection are correct, so as to avoid the differential protection malfunction during the impact test or after the transformer is put into operation. [0003] The current test method is usually to introduce a 380V AC power supply at the current transforme...

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H02H7/045G01R31/55
Inventor王风
OwnerSHUOHUANG RAILWAY DEV