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Self-repairing method for PT intelligent blocking device

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

Active Publication Date: 2021-04-16
GUANGXI POWER GRID CO LIUZHOU POWER SUPPLY BUREAU
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  • Abstract
  • Description
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  • 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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  • Self-repairing method for PT intelligent blocking device
  • Self-repairing method for PT intelligent blocking device
  • Self-repairing method for PT intelligent blocking device

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Embodiment Construction

[0030] The technical solutions in the present invention are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0031] Such as figure 1 As shown, the main capacitor inside the conventional PT intelligent blocking device is composed of countless series connected microcapacitors and fuse blowing devices in parallel, that is, each microcapacitor is equipped with a fuse blowing device as an internal short circuit protection. Such as figure 2 As shown, when a micro-capacitor breaks down, other intact capacitors will discharge it, causing the fuse to blow quickly in milliseconds, cutting o...

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Abstract

The invention discloses a self-repairing method for a PT intelligent blocking device, and relates to the technical field of blocking devices. By redesigning a miniature capacitor plate circuit on an internal thin film of a main body capacitor of the PT intelligent blocking device, after a certain main body miniature capacitor in the miniature capacitor plate circuit is broken down, the main body capacitance value of the miniature capacitor plate circuit is kept stable; and when the capacitance value of the PT intelligent blocking device cannot be kept stable after the PT intelligent blocking device breaks down, the main body capacitance value of the broken-down PT intelligent blocking device is adjusted through an intelligent algorithm, and then the capacitance value of the PT blocking device can be kept stable all the time and cannot deviate. The problem that the capacitance value of a main body capacitance value in an existing PT intelligent blocking device drifts due to the fact that part of miniature capacitors inside are damaged is solved.

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 performing DC test transmission on the power transmission line, due to the straight-through characteristics of the PT, the DC high voltage will be short-circuited to the ground, so that the DC instrument cannot be boosted normally for testing, so it is necessary to connect a PT intelligent blocking device in series between the PT and the main line . However, in actual operation, the capacitance value of the main body in the PT smart 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. Contents of the invention [0003] The purpose of the present invention is t...

Claims

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Application Information

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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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