Grounding grid electro-corrosion and protection monitoring device

By using a grounding grid electrical corrosion and protection monitoring device, and utilizing resistance probes and cathodic protection monitoring units, real-time online monitoring of grounding grid corrosion trends and cathodic protection effectiveness has been achieved. This solves the safety hazards caused by the concealment of grounding grid corrosion and ensures the safe operation of power installations.

CN223551566UActive Publication Date: 2025-11-14WUHAN CORRTEST INSTR
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422654071.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-31
Publication Date
2025-11-14
Estimated Expiration
2034-10-31

AI Technical Summary

Technical Problem

The concealed nature of grounding grid corrosion in existing technologies makes it difficult to detect faults in a timely manner, posing a significant safety hazard.

Method used

A grounding grid electro-corrosion and protection monitoring device was designed, comprising a resistance probe, a converter, a microcontroller, a cathodic protection monitoring unit, and wireless WIFI. It monitors the corrosion trend and cathodic protection effect of the grounding grid by measuring resistance changes and potential values. It achieves high-precision micro-resistance measurement by using an AC excitation source and AV bridge principle, and the data is remotely monitored through wireless transmission.

Benefits of technology

It enables real-time online monitoring of grounding grid corrosion behavior and cathodic protection effectiveness, allowing for timely fault detection and ensuring the reliable operation of power installations.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223551566U_ABST
    Figure CN223551566U_ABST
Patent Text Reader

Abstract

The utility model relates to a grounding grid electro-corrosion and protection monitoring device comprising a corrosion monitoring unit which comprises a resistance probe, a converter and a single-chip microcomputer which are connected in sequence; the cathodic protection potential monitoring unit comprises a cathodic protection monitor, and a natural potential test piece, a power-off potential test piece and a reference electrode which are connected with the cathodic protection monitor, a first potentiometer is arranged between the reference electrode and the grounding grid, a second potentiometer is arranged between the reference electrode and the power-off potential test piece, and the second potentiometer is connected with the cathodic protection monitor. And a third potentiometer is arranged between the reference electrode and the natural potential test piece. The on-line monitoring device suitable for grounding grid electric corrosion and cathode protection is developed, long-term monitoring on the corrosion behavior of the grounding grid and the protection effect during cathode protection can be achieved, faults can be found in time, preventive measures are taken in advance, and the on-line monitoring device has great significance in guaranteeing reliable operation of power devices.
Need to check novelty before this filing date? Find Prior Art