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A self-repairing method of an intelligent blocking device

A repair method and intelligent technology, applied in circuit devices, emergency protection circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, etc., can solve problems such as capacitance drift

Active Publication Date: 2022-06-24
GUANGXI POWER GRID CO LIUZHOU POWER SUPPLY BUREAU
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a self-repair method for a PT intelligent blocking device, thereby overcoming the shortcoming that the capacitance value of the main body in the existing PT intelligent blocking device drifts due to damage to the internal part of the micro-capacitor

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  • A self-repairing method of an intelligent blocking device
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Embodiment Construction

[0030] The technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0031] like figure 1 As shown, the main capacitor inside the conventional PT intelligent blocking device is formed by innumerable series-connected microcapacitors and fuse blowing devices in parallel, that is, each microcapacitor is provided with a fuse blowing device for internal short-circuit protection. like figure 2 As shown in the figure, when a certain miniature capacitor breaks down, other intact capacitors will discharge it, so that the fuse is quickly blo...

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Abstract

The invention discloses a self-repair method for a PT intelligent blocking device, which relates to the technical field of blockers. By redesigning the micro capacitor plate circuit on the internal film of the main capacitor of the PT intelligent blocking device, the micro capacitor plate circuit in the micro capacitor plate circuit After one of the main body microcapacitors is broken down, the main capacitance value of the microcapacitor board circuit remains stable; when the capacitance value cannot be kept stable after the PT intelligent blocking device fails, the breakdown is performed through an intelligent algorithm. After adjusting the capacitance value of the main body of the PT smart blocking device, the capacitance of the PT blocker will remain stable without shifting. It solves the problem that the capacitance value of the main body in the existing PT smart blocker drifts due to the damage of some internal micro-capacitors.

Description

technical field [0001] The invention belongs to the technical field of blockers, and in particular relates to a self-repairing method of a PT intelligent blocking device. Background technique [0002] When the DC test transmission is performed on the transmission line, the DC high voltage will be shorted to the ground due to the straight-through characteristic of the PT, so that the DC instrument cannot be normally boosted for testing. Therefore, a PT intelligent blocking device needs to be connected in series between the PT and the main line. . However, in actual operation, the capacitance value of the main body in the PT intelligent blocking device is damaged due to the damage of some internal micro-capacitors, which causes the capacitance value to drift, which in turn affects the output accuracy of the PT. This requires an intelligent self-healing method to ensure accurate capacitance values. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H7/04H02H7/05H02H9/04H02H7/26H02J13/00
CPCY04S10/20
Inventor 刘秀雄邹陈龙赵嘉骏曾召维魏俊杰
Owner GUANGXI POWER GRID CO LIUZHOU POWER SUPPLY BUREAU
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