Secondary cable checking method for transformer substation

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 ...

AI Technical Summary

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 communication errors

[0004] In the process of realizing the present invention, the inventor found that at least there are defects such as large environmental impact and low accuracy in the prior art

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