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Transformer station routine distributed line protective device test method

A technology of protection devices and test methods, which is applied in the direction of electronic protection circuit testing, electronic circuit testing, etc., and can solve problems such as losses, functional failures of protection devices, and hidden dangers.

Inactive Publication Date: 2018-04-17
ANGANG STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The relay protection devices used in the power supply work area of ​​the Department of Environmental Energy of the Iron and Steel Company are those of NARI, Nanzi and Tsinghua Unigroup. At present, there is no systematic and standardized test standard or regulation, and the relay protection test basically depends on acceptance. If the experience of the personnel is not carefully checked, it is easy to cause some functional failures or hidden dangers of the protection device to be missed, which will cause serious consequences and cause unnecessary losses

Method used

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  • Transformer station routine distributed line protective device test method
  • Transformer station routine distributed line protective device test method
  • Transformer station routine distributed line protective device test method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0119] See figure 1 , NARI's RCS-9611C test method for routine distribution of protective devices:

[0120] 1.1 AC circuit inspection

[0121] Enter the "Sampling Value Display" submenu of the "Status Display" menu, add the rated voltage and current to the protective screen terminal (or the back panel of the device), and the sampling value displayed on the LCD screen should be the same as the actual added amount. Error should be less than ±2.5% or meet ±0.01 times I N Rated value, the error is subject to the maximum value of the absolute value, and the phase angle error is less than 2 degrees; enter the "Remote Measurement Display" submenu in the "Status Display" menu, and add the rated value to the protection screen terminal (or device back panel) respectively. The voltage and measurement current, the sampling value displayed on the LCD screen should be equal to the actual amount added, the error should be less than ±2‰, and the error of the power should be less than ±5‰. ...

Embodiment 2

[0168] Nanzi routine dispensing protection device (PSL-691) test method, see figure 2 , including the following steps:

[0169] 1.1 AC circuit accuracy test

[0170] Enter the "Sampling Value Display" submenu of the "Status Display" menu, add the rated voltage and current to the protective screen terminal (or the back panel of the device), and the sampling value displayed on the LCD screen should be the same as the actual added amount. The error should be less than ±2.5% or ±0.01 rated value, and the phase angle error is less than 2 degrees; enter the "Remote Measurement Display" submenu in the "Status Display" menu, and add rated The voltage and measurement current, the sampling value displayed on the LCD screen should be equal to the actual amount added, the error should be less than ±2‰, and the error of the power should be less than ±5‰.

[0171] 1.2 Device hardware test

[0172] 1.2.1 Panel light test: through the > menu of , test whether the panel light of the device...

Embodiment 3

[0204] See image 3 , the test method of purple light conventional dispensing protection device (DCAP-3000V2.0D), including the following steps:

[0205] 1.1 AC circuit accuracy test

[0206] Enter the "Sampling Value Display" submenu of the "Status Display" menu, add the rated voltage and current to the protective screen terminal (or the back panel of the device), and the sampling value displayed on the LCD screen should be the same as the actual added amount. The error should be less than ±2.5% or ±0.01 rated value, and the phase angle error is less than 2 degrees; enter the "Remote Measurement Display" submenu in the "Status Display" menu, and add the rated For voltage and measuring current, the sampling value displayed on the LCD screen should be equal to the actual amount added, and the error should be less than ±2‰, and the error of power should be less than ±5‰.

[0207] 1.2 Device hardware test

[0208] 1.2.1 Panel light test: through the > menu of , test whether th...

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Abstract

The invention relates to a transformer station routine distributed line protective device test method, and suitable for a 66kV transformer station routine distribution station; the method comprises astep of AC loop detection: input contact detection; and a step of total group test: joint debugging the device and a monitoring backstage; the advantages are that the method can carry out the routinedistributed line protective device test work in each total drop transformer station in the power supply work areas in a more vivid mode with more pertinency and references, thus effectively preventingcertain function failure or missing hidden troubles, caused by rough tests, of the transformer station routine distributed line protective device, and preventing severe results and unnecessary losses.

Description

technical field [0001] The invention relates to a test method for a conventional distribution line protection device of a substation. Background technique [0002] The relay protection devices used in the power supply work area of ​​the Department of Environmental Energy of the Iron and Steel Company are those of NARI, Nanzi and Tsinghua Unigroup. At present, there is no systematic and standardized test standard or regulation, and the relay protection test basically depends on acceptance. If the experience of the personnel is not carefully checked, it is easy to miss some functional failures or hidden dangers of the protection device, which will cause serious consequences and cause unnecessary losses. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a test method for conventional distribution line protection devices in substations, so that the test of conventional distribution line ...

Claims

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Application Information

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IPC IPC(8): G01R31/28
CPCG01R31/2827
Inventor 富云飞赵聪贾洪侠刘迎宇安传龙陈智强阚颂
Owner ANGANG STEEL CO LTD
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