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Test result evaluation method of fault recorder

A fault recorder and evaluation method technology, applied in the direction of instruments, measuring devices, measuring electrical variables, etc., can solve the problem that there is no way to require manufacturers to do it, and achieve intuitive and clear scoring results, intuitive and clear conclusions, and accurate test conclusions. Effect

Inactive Publication Date: 2009-10-28
CHINA ELECTRIC POWER RES INST +1
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AI Technical Summary

Problems solved by technology

In the past, fault recorders were only tested according to the standard, and there was no way to ask the manufacturer to do it for problems other than the standard.

Method used

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  • Test result evaluation method of fault recorder
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  • Test result evaluation method of fault recorder

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Embodiment Construction

[0037] The invention is based on the test result evaluation method of the power system generating set and the line fault recorder. We take the type selection test of a power grid line fault recorder in a certain province as an example to specifically describe the application of the present invention.

[0038] see figure 1 Shown, the test result evaluation method of fault recorder of the present invention specifically comprises the following steps:

[0039] (1) According to the test method stipulated in DL / T 663-1999 "220kV ~ 500kV Power System Fault Dynamic Recording Device Detection Requirements", we select the recording performance of non-periodic components for testing;

[0040] (2) Use a relay protection tester to conduct 5 non-periodic tests on a number of power system fault recorders connected to the network, and calculate the relative error (x%) of each time, without using the average error (to prevent positive and negative errors from offsetting) .

[0041] (3) Acc...

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Abstract

The invention relates to a test result evaluation method of a fault recorder. The method carries out overall evaluation and quantitative analysis on the basis of the performance of the fault recorder of an electric power system according to the detection standard of the electric power system industry, researches and invents a test result evaluation method which is applicable to the fault recorder of electric power lines and generator transformer set, and provides intuitive test basis for type selection test of the fault recorder of the large electric power system.

Description

technical field [0001] The invention relates to an evaluation method of a fault recorder, in particular to an evaluation of test results based on a power system generating set and a line fault recorder. Background technique [0002] With the rapid growth of power load and the increase of demand for long-distance and large-capacity power transmission, in order to ensure the safe and stable operation of the power system, it is more important to monitor and record the operating parameters and operating status. There are many manufacturers of fault recorders, which brings great difficulty to users in choosing a suitable recorder. In the past, fault recorders were only tested according to the standard, and there was no way to ask the manufacturer to do it for problems other than the standard. In particular, the standard cited by the line fault recorder was formulated in 1999. At present, most oscilloscope manufacturers can easily pass the product type test. This has brought a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/00
Inventor 艾淑云张晓莉周春霞李蓓琦周泽昕项灿芳滕颖
Owner CHINA ELECTRIC POWER RES INST
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