Power transformer state evaluation method and system based on electriferous detection

A power transformer and state evaluation technology, which is applied in the direction of measuring electrical variables, instruments, measuring electricity, etc., can solve the problems of waste of manpower and material resources, affecting the operation and availability of transformers, etc., and achieves strong practicability and intuitive evaluation process

Active Publication Date: 2015-01-28
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a power transformer state evaluation method and system based on live detection to overcome the fact that the power transformer maintenance method in the prior art basically adopts planned maintenance and fault maintenance, which leads to waste of manpower and material resources, and affects Transformer operation and availability issues

Method used

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  • Power transformer state evaluation method and system based on electriferous detection
  • Power transformer state evaluation method and system based on electriferous detection
  • Power transformer state evaluation method and system based on electriferous detection

Examples

Experimental program
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Effect test

Embodiment 1

[0048] Such as figure 1 as shown, figure 1 It is a flow chart of a method for evaluating the state of a power transformer based on live detection provided in Embodiment 1 of the present application. The transformer state evaluation method includes:

[0049] S101: Obtain real-time state quantity data of the transformer to be evaluated.

[0050] The state quantity refers to the characteristic basis that can definitely reflect the performance of a certain aspect of the research object according to the research object and purpose. Each state quantity participating in the evaluation should be able to describe a certain characteristic of the object from different aspects. Specifically, in this application, the state quantity is selected under the electrified state of the power transformer, which has strong pertinence, thereby improving the accuracy of the evaluation result.

[0051] 1. Selection criteria of state quantity

[0052] The state quantity should be able to objectively...

Embodiment 2

[0078] Embodiment 2 of the present application provides another method for evaluating the state of a power transformer based on live detection, such as figure 2 as shown, figure 2 It is a flow chart of a method for evaluating the state of a power transformer based on live detection provided in Embodiment 2 of the present application. The method includes:

[0079] S201: Obtain real-time state quantity data of the transformer to be evaluated.

[0080] Specifically, each component (sub-equipment) that constitutes the equipment has relatively independent performance, and the evaluation is carried out independently according to the structural characteristics of each component (sub-equipment); once a certain component (sub-equipment) is in poor condition, the equipment will not be able to realize For the overall predetermined function, the overall state evaluation refers to the component (sub-equipment) with the worst sub-item evaluation results, following the "short board effec...

Embodiment 3

[0133] Such as Figure 6 as shown, Figure 6 A schematic structural diagram of a power transformer state evaluation system based on live detection provided in Embodiment 3 of the present application. The system includes: an acquisition unit 601, an establishment unit 602 and an evaluation unit 603, wherein:

[0134] The acquiring unit 601 is configured to acquire real-time state quantity data of the transformer to be evaluated.

[0135] Wherein, the selection criteria and selection results of the real-time state quantities are the same as those in the first embodiment, and will not be repeated here.

[0136] The establishing unit 602 is configured to establish an evaluation model according to the initial state quantity of the transformer to be evaluated.

[0137] The evaluation unit 603 is configured to use the evaluation model established by the establishment unit 602 to evaluate the real-time state quantity data obtained by the acquisition unit 601 to obtain a state evalu...

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Abstract

The invention provides a power transformer state evaluation method and system based on electriferous detection. The method comprises the steps that real-time state quantity data of a transformer to be evaluated are obtained; an established evaluation model is used for evaluating the real-time quantity data to obtain a state evaluation result of the transformer to be evaluated, wherein the evaluation model is established according to the initial state quantity of the transformer to be evaluated. According to the evaluation method, the evaluation model which is established in advance is used for accurately reflecting features and attributes of the transformer, the transformer can be overhauled according to the obtained state evaluation result in a targeted mode, preventive measures are taken, thus, the problems that in the prior art, manpower and material resources are wasted and operation and the available rate of a transformer are affected due to the fact that schedule maintenance and corrective maintenance are conducted on the power transformer are solved; moreover, the evaluation process is visual, simple and easy to grasp, and high practicability is achieved.

Description

technical field [0001] The present application relates to the technical field of electric power safety, in particular to a method and system for evaluating the state of a power transformer based on live detection. Background technique [0002] The power supply reliability of the power system is related to the national economy and the people's livelihood. How to effectively ensure the safety and reliability of the power system has always been an important issue for power companies. Among them, the safe operation of power transmission and transformation equipment, such as power transformers, is the key to the safety and The basis for reliable operation. However, to improve the reliability of power transformers, in addition to improving the quality of power transformers, necessary inspections and maintenance must also be carried out on power transformers. Moreover, with the rapid development of my country's electric power construction, the number of power transformers used has...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
Inventor 孙翔何文林董雪松刘浩军王文浩邹国平梅冰笑董建洋邱炜李晨于淼
Owner STATE GRID CORP OF CHINA
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