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Method for evaluating voltage transformer operation

A technology of voltage transformer and evaluation method, which is applied in the field of electric power, can solve the problems of heavy workload, untimely fault detection, large labor and material resource consumption, etc.

Active Publication Date: 2015-09-09
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] At present, power companies mainly judge the operating status of voltage transformers operated on site through periodic verification, but periodic verification has a large workload, consumes a lot of manpower and material resources, does not find faults in time, and has insufficient basis for power recovery after faults, etc. A series of disadvantages, therefore, it is urgently needed to establish an evaluation method for the operation status of voltage transformers

Method used

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  • Method for evaluating voltage transformer operation
  • Method for evaluating voltage transformer operation
  • Method for evaluating voltage transformer operation

Examples

Experimental program
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Embodiment

[0041] Such as figure 1 As shown, an evaluation method for the operation of a voltage transformer includes the following steps:

[0042] 1) Collect the original data of the on-site voltage transformer through the online monitoring system of the remote metering device, and upload the original data to the data server of the upper PC;

[0043] 2) The host PC classifies the raw data, and establishes a mathematical model for voltage transformer operation evaluation according to the classified raw data, which specifically includes the following steps:

[0044] 21) Obtain the initial health index HI of the voltage transformer operation 1 , initial health index HI of voltage transformer 1 The calculation of is carried out as follows:

[0045] (1) Routine settings

[0046]Set some node values ​​of the health index, including the initial health index of the new device, the theoretical aging health index, the end-of-life health index, the lower limit of the health index, the upper li...

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Abstract

The invention relates to a method for evaluating voltage transformer operation. The method comprises the following steps of: 1) using a remote metering device online monitoring system to acquire the original data of a field voltage transformer and upload the original data to a data server of a host PC; 2) using the host PC to classify the original data and establish a mathematic model of voltage transformer operation evaluation according to the classified original data; and 3) according to the established mathematic model of voltage transformer operation evaluation, evaluating the voltage transformer operation to obtain a final health index HI of the voltage transformer, predicting the operation trend of the voltage transformer according to the final health index HI and performing early warning. Compared with a method in the prior art, the method has advantages of a scientific and reasonable property, a large number of researched objects, a wide coverage, and good systemaltization and intellectualization.

Description

technical field [0001] The invention relates to the field of electric power, in particular to an evaluation method for the operation of a voltage transformer. Background technique [0002] Gateway metering is an important part of the large marketing system among the three sets of five major systems. The operation of the gateway metering device not only reflects the management level, but also affects the economic benefits of both the electricity seller and the buyer. In order to manage devices fairly, justly, openly, and with credibility, and maintain the seriousness of measurement, it is necessary to refine and classify the operating conditions to provide a scientific basis for technical countermeasures. [0003] This time, the project "Research on the Operation Evaluation System and Remote Status Monitoring Scheme of Gateway Electric Energy Metering Devices" undertaken by the Electric Power Research Institute of Shanghai Electric Power Company in conjunction with Xiamen Hon...

Claims

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Application Information

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IPC IPC(8): G01R35/02
Inventor 曹祎杜卫华陈海宾王卉陈圣泽孙闻
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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