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Online detection method of grounding resistor

A grounding resistance and detection method technology, which is applied in the direction of grounding resistance measurement, etc., can solve the problems of inability to realize effective detection of grounding resistance, increase of grounding resistance value of grounding device, endangering the safe operation of the whole set of equipment, etc., and achieve efficient real-time online measurement and measurement Improved accuracy and convenient measurement

Inactive Publication Date: 2015-01-14
北京清网华科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the common problem is that because the grounding body is buried in the ground all the year round, acid-base corrosion, natural disasters or man-made damage will easily cause the failure of the grounding resistance device, which will lead to an increase in the grounding resistance value of the grounding device. When the site is struck by lightning Sometimes it will cause the ground potential to rise and counterattack the equipment. In serious cases, it will directly endanger the safe operation of the whole set of equipment.
However, for unattended facilities built in harsh outdoor environments, none of the current testing methods can achieve effective detection of grounding resistance

Method used

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Embodiment 1

[0023] like figure 1 Shown, the online detection method of a kind of grounding resistance of the present invention comprises the following steps:

[0024] (1) Measure the voltage and current of the grounding resistance to be measured through the auxiliary electrode embedded system 1, and transmit the measured voltage signal and current signal to the measurement system 2, wherein the auxiliary electrode embedded system 1 is a sealed structure;

[0025] (2) Data processing is performed on the received voltage signal and current signal by the measurement system 2 to obtain the resistance value of the grounding resistance, and the resistance value of the measured grounding resistance is displayed locally or transmitted to the master station management control system 3;

[0026] (3) The master station management control system 3 displays and manages the received resistance value of the grounding resistance.

[0027] In the above embodiment, the auxiliary electrode embedded system ...

Embodiment 2

[0030] like figure 1 Shown, the online detection method of a kind of grounding resistance of the present invention comprises the following steps:

[0031] (1) Measure the voltage and current of the grounding resistance to be measured through the auxiliary electrode embedded system 1, and transmit the measured voltage signal and current signal to the measurement system 2, wherein the auxiliary electrode embedded system 1 is a sealed structure;

[0032] (2) Data processing is performed on the received voltage signal and current signal by the measurement system 2 to obtain the resistance value of the grounding resistance, and the resistance value of the measured grounding resistance is displayed locally or transmitted to the master station management control system 3;

[0033] (3) The master station management control system 3 displays and manages the received resistance value of the grounding resistance.

[0034] In the above embodiment, the auxiliary electrode embedded system ...

Embodiment 3

[0037] Such as figure 2 As shown, an online detection method for grounding resistance of the present invention has the same basic steps, structural settings and applications as in Embodiment 1. Specifically, in order to improve the accuracy and reliability of measurement, in the auxiliary electrode pre-embedded system 1, A current observation box 4 and a voltage observation box 5 are provided, the current observation box 4 collects the current signal of the ground resistance to be measured and transmits it to the measurement system 2, and the voltage observation box 5 collects the voltage signal of the ground resistance to be measured and transmits it to the measurement system 2; In the measurement system 2, a signal acquisition unit 6, a calculation unit 7, a calibration unit 8, a communication transmission unit 9 and a local display unit 10 are provided; the signal acquisition unit 6 receives the current signal transmitted by the current observation box 4 and The voltage si...

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Abstract

The invention relates to an online detection method of a grounding resistor. The voltage and the current of the grounding resistor to be measured are measured through an auxiliary electrode embedded system, and the measured voltage signal and the measured current signal are transmitted to a measuring system, wherein the auxiliary electrode embedded system is of a sealed structure. Data processing is performed on the received voltage signal and the received current signal through the measuring system. The resistance value of the grounding resistor is obtained, and the measured resistance value of the grounding resistor is locally displayed or transmitted to a master station management control system. The resistance value of the grounding resistor is displayed and managed by the master station management control system. The online detection method of the grounding resistor effectively solves the problem existing in measurement of grounding resistors in the prior art, achieves efficient and real-time online measurement of grounding resistors, is not limited by the site or influenced by environmental interference, greatly improves the measuring accuracy, greatly reduces manual error, is favorable for finding out problems as soon as possible to take measures in time for maintenance, and thus guarantees safe operation of relevant lightning protection system equipment and the like.

Description

technical field [0001] The invention relates to the technical field of detection of resistance devices, in particular to an online detection method of grounding resistance. Background technique [0002] An excellent grounding system is an important guarantee for the safe and reliable operation of electric power, telecommunications, and electrical equipment. For example, the grounding resistance is an important part of the comprehensive lightning protection system, and its resistance value directly determines the protection performance of the entire system, and the grounding resistance is the basis for judging the quality of the grounding system. At present, the common problem is that because the grounding body is buried in the ground all the year round, acid-base corrosion, natural disasters or man-made damage will easily cause the failure of the grounding resistance device, which will lead to an increase in the grounding resistance value of the grounding device. When the si...

Claims

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Application Information

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IPC IPC(8): G01R27/20
Inventor 石磊
Owner 北京清网华科技股份有限公司
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