Secondary cable checking method for transformer substation

A technology for substations and line calibration, applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve the problems of large environmental impact, low accuracy, poor surrounding environment, etc., to achieve small environmental impact, overcome large environmental impact and accurate The effect of low rate and high accuracy rate

Inactive Publication Date: 2012-08-15
STATE GRID CORP OF CHINA
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Problems solved by technology

This method requires low ambient noise and correct communication, but in the process of on-site construction, the surrounding environment is poor and the noise is high, which easily leads to com

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  • Secondary cable checking method for transformer substation
  • Secondary cable checking method for transformer substation
  • Secondary cable checking method for transformer substation

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Embodiment Construction

[0040] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0041] According to an embodiment of the present invention, such as Figure 1-Figure 5 As shown, a secondary alignment method of a substation is provided. Such as image 3 As shown, this embodiment includes:

[0042] Step 1: Before calibration, select a DC power supply, and set up a power supply voltage stabilization module and a power supply alarm module that match the selected DC power supply, so that the DC power supply can stabilize the power supply; where:

[0043] The power supply voltage stabilization module is used to readjust the output voltage to stabilize the output voltage of the DC power supply and prevent current changes due to voltage changes;

[0...

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Abstract

The invention discloses a secondary cable checking method for a transformer substation. The secondary cable checking method for the transformer substation comprises the following steps: a, optionally selecting a cable core from a cable to be corrected as a public end, and diodes are respectively and oppositely connected at the end parts of the cable cores except the public end in series according to the predetermined service regulation numbers and in the same conducting direction; and b, testing the current value of each of the cable cores with the current range of a universal meter, determining the numbers of the cable cores corresponding to the corresponding measurement results of the current values according to the measurement results of the current values of different cable cores, and then taking corresponding corrective actions. The secondary cable checking method for the transformer substation can overcome the disadvantages that the cable checking method is greatly affected by environment and the accuracy is low in the prior art and realize the advantages that the cable checking method is lightly affected by environment, and the accuracy is high.

Description

technical field [0001] The invention relates to the technical field of power grid construction, in particular to a method for secondary alignment of a substation. Background technique [0002] At present, with the continuous expansion of the scale of Xinjiang power grid construction, the required human resources are also increasing. In the process of substation construction, the secondary wiring calibration line has always been a relatively labor-intensive project. [0003] In the traditional secondary calibration method, it is required that two people hold the walkie-talkie and use a multimeter to perform the calibration work when point-to-point calibration is required. This method requires low ambient noise and correct communication, but in the process of on-site construction, the surrounding environment is poor and the noise is high, which easily leads to communication errors. [0004] In the process of realizing the present invention, the inventors found that the prior ...

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Application Information

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IPC IPC(8): G01R31/02
Inventor 曾浩胡兵周鹏靳旭梁慧
Owner STATE GRID CORP OF CHINA
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