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Cathodic protection potential detecting system for transformer substation grounding device and detecting method of cathodic protection potential detecting system

A cathodic protection and grounding device technology, applied in the substation grounding layout and other directions, can solve problems such as difficulty in manual detection, and achieve the effect of ensuring accuracy

Pending Publication Date: 2020-01-07
GUIZHOU POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the grounding device is buried underground, manual detection is difficult, so other methods are needed for detection

Method used

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  • Cathodic protection potential detecting system for transformer substation grounding device and detecting method of cathodic protection potential detecting system
  • Cathodic protection potential detecting system for transformer substation grounding device and detecting method of cathodic protection potential detecting system

Examples

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Effect test

Embodiment 1

[0026] Embodiment 1: as figure 1 and figure 2 As shown, a cathodic protection potential detection system for a substation grounding device includes a cathodic protection test piece 1, a reference electrode 2, an AC test piece 3, a front single-chip microcomputer 4, a rear single-chip microcomputer 6, a memory 5 and a signal transmission component 7, and the cathode The protection test piece 1, the reference electrode 2 and the AC test piece 3 are arranged under the grounding device 13 to be tested and electrically connected to it through the cable 8, and the cathodic protection test piece 1, the reference electrode 2 and the AC test piece 3 pass through the signal acquisition unit 9 It is connected with the front single-chip microcomputer 4, the front single-chip microcomputer 4 is connected with the rear single-chip microcomputer 6 through the signal transmission component 7, and the rear single-chip microcomputer 6 is connected with the memory 5.

[0027] In this embodimen...

Embodiment 2

[0035] Embodiment 2: The present invention also discloses a detection method for a cathodic protection potential detection system of a substation grounding device, which includes the following steps:

[0036] start of measurement;

[0037] Measure the DC voltage between the grounding device 13 to be tested and the reference electrode 2 and the DC current flowing through the cathodic protection test piece 1 through the cathodic protection test piece 1, and measure the grounding device 13 to be tested and the reference electrode 2 through the AC test piece 3 The AC voltage between and the AC current flowing through the AC test piece 3;

[0038] The measured data is transmitted to the front-end microcontroller 4;

[0039] The measured data is transmitted to the rear single-chip microcomputer 6 through signal filtering and signal amplification;

[0040] Store the signal to memory.

[0041] In this embodiment, the timing detection step is also included as follows:

[0042] Set ...

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Abstract

The invention discloses a cathodic protection potential detecting system for a transformer substation grounding device and a detecting method of the cathodic protection potential detecting system. Thecathodic protection potential detecting system comprises a cathodic protection test piece, a reference electrode, an alternating current test piece, a front single chip microcomputer, a rear single chip microcomputer, a memory and a signal transmission component, wherein the cathodic protection test piece, the reference electrode and the alternating current test piece are arranged below a to-be-tested grounding device and are electrically connected with the to-be-tested grounding device through a cable; the cathodic protection test piece, the reference electrode and the alternating current test piece are connected with the front single chip microcomputer; the front single chip microcomputer is connected with the rear single chip microcomputer through the signal transmission component; andthe rear single chip microcomputer is connected with the memory. The direct current voltage between the to-be-tested grounding device and the reference electrode and the direct current flowing through the cathodic protection test piece can be measured by the cathodic protection test piece; the alternating current voltage between the to-be-tested grounding device and the reference electrode and the alternating current flowing through the alternating current test piece can be measured through the alternating current test piece, so that the measurement accuracy is ensured, and the service life of the to-be-tested grounding device is prolonged by the measured data.

Description

technical field [0001] The invention belongs to the technical field of cathodic protection potential detection equipment for a substation grounding device, and in particular relates to a cathodic protection potential detection system and a detection method for a substation grounding device. Background technique [0002] Substation grounding devices generally refer to the metal parts of various electrical equipment. In addition to effectively preventing the human body from getting an electric shock, grounding can also ensure the safe operation of the substation and provide effective protection for the insulation of lines and electrical equipment. In order to increase the service life of the substation, it is necessary to maintain the grounding device, and the main maintenance method is to detect the cathodic protection potential. However, since the grounding device is buried underground, manual detection is difficult, so other methods are needed for detection. Contents of ...

Claims

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Application Information

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IPC IPC(8): C23F13/22H02B5/01
CPCC23F13/22H02B5/01
Inventor 樊磊李波张仁奇
Owner GUIZHOU POWER GRID CO LTD
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