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Test data curve analysis comparative method

A technology of curve analysis and test data, applied in the field of analysis and comparison method, to achieve the effect of easy to use, save the time of reading data, and reduce the failure rate

Active Publication Date: 2014-02-12
JIUQUAN IRON & STEEL GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the "Guidelines for Equipment Maintenance", the generator set should be repaired once a year and overhauled once every four years. A large number of electrical preventive test data and test reports are formed during the maintenance. These test data need to be recorded manually and converted on site. Therefore, to test personnel It is more difficult to compare, analyze and judge the health level of equipment and eliminate equipment failures in time with the test data of previous years

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0034] The following takes the DC resistance of the new #3 generator set A coagulation pump motor test as an example to analyze and compare.

[0035] The test data curve analysis and comparison method provided by the invention comprises the following steps:

[0036] Step 1: After the motor has undergone minor repairs or major repairs in different periods, during the preventive test, input the actual measured value of the DC resistance of the windings tested by the testing equipment into the Excel table for storage, filing and storage. like figure 1 As shown in the figure, the actual measured value of the DC resistance of the windings detected after the overhaul from 2009 to 2012 was input into the Excel table for storage, filing and storage.

[0037] The actual measured value of the DC resistance of the winding refers to the value read from the measuring instrument by the tester using the test instrument to test in the field. The three-phase DC resistance is represented by ...

Embodiment 2

[0050] The following takes the leakage current test of the new #4 factory high-voltage transformer as an example to analyze and compare.

[0051] The test data curve analysis and comparison method provided by the invention comprises the following steps:

[0052] Step 1: After the #4 factory high-voltage transformer has undergone minor repairs or major repairs in different periods, during the preventive test, input the actual measured value of the leakage current obtained by the testing equipment into the Excel table for storage, filing and storage. . like Figure 5 As shown in the figure, the actual measured value of leakage current obtained after inspection in 2004, 2008 and 2012 was input into the Excel table for storage, filing and storage.

[0053] The actual measured value of leakage current refers to the value read from the measuring instrument by the tester using the test instrument to test in the field. When the testers use the HTFDZLY DC withstand voltage tester to...

Embodiment 3

[0066] The following takes the new #2 main transformer dielectric loss factor as an example to analyze and compare.

[0067] The test data curve analysis and comparison method provided by the invention comprises the following steps:

[0068] Step 1: After the transformer has undergone minor repairs or major repairs in different periods, during the preventive test, the dielectric loss factor tanδ obtained by the testing equipment will be tested. t1 The actual measured value is input into the Excel table for storage, filing and storage. like Figure 8 As shown, after the overhaul in 2004, 2007 and 2011, the measured dielectric loss factor tanδ t1 The actual measured value is input into the Excel table for storage, filing and storage.

[0069] The actual measured value of the dielectric loss factor refers to the value read from the measuring instrument by the tester using the test instrument to test in the field. The testers use the DDA20 high-voltage dielectric loss tester t...

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PUM

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Abstract

The invention discloses a test data curve analysis comparative method. The test data curve analysis comparative method includes the following steps that after minor overhaul or major overhaul is conducted on electric equipment at different stages and when a preventive test is conducted, actual measured values acquired through the test conducted by detection equipment are input into an Excel form for storage, filing and retention; based on the Excel form, equation editing is conducted, a computational equation is set, and the actual measured values over the years are converted to obtain conversion values; data curves of the conversion values over the years are generated respectively by the utilization of the Excel functions; the corresponding relations between the data curves of the conversion values over the years are compared, and the defects of the electric equipment are looked for. The test data curve analysis comparative method has practicality, comparability, timeliness and operability.

Description

technical field [0001] The invention relates to an analysis and comparison method, in particular to a test data curve analysis and comparison method. Background technique [0002] Jiayuguan Hongsheng Electric Heating Co., Ltd. is affiliated to JISCO Group. It currently has 12 sets of thermal power generation facilities with an installed capacity of 1810MW. It is estimated that by the end of the "Twelfth Five-Year Plan", the total installed capacity will reach 3200MW. A single generator set is equipped with 12 transformers, 20 high-voltage motors, 30 low-voltage motors, 36 high-voltage circuit breakers, busbars, lightning arresters, transformers, etc. According to the "Guidelines for Equipment Maintenance", the generator set should be repaired once a year and overhauled once every four years. A large number of electrical preventive test data and test reports are formed during the maintenance. These test data need to be recorded manually and converted on site. Therefore, to te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06
Inventor 范天明丁万林陈富珍
Owner JIUQUAN IRON & STEEL GRP