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Remote control detecting device for corrosion state of grounding grid horizontal voltage-sharing conductor of substation

A substation grounding grid and corrosion state technology, applied in the direction of fault location, signal transmission system, instrument, etc., can solve the problems of low accuracy, heavy workload, complicated operation, etc.

Inactive Publication Date: 2015-12-16
LINFEN POWER SUPPLY COMPANY OF STATE GRID SHANXI ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention mainly aims at the problems of large workload, low accuracy and complex operation in the current method for detecting the breakpoint and corrosion state of the grounding grid, and provides a remote detection device for the corrosion state of the horizontal equal-voltage conductor of the substation grounding grid

Method used

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  • Remote control detecting device for corrosion state of grounding grid horizontal voltage-sharing conductor of substation
  • Remote control detecting device for corrosion state of grounding grid horizontal voltage-sharing conductor of substation
  • Remote control detecting device for corrosion state of grounding grid horizontal voltage-sharing conductor of substation

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Embodiment 1

[0033] A remote detection device for the corrosion state of the horizontal equal-voltage conductor of the substation grounding grid, such as figure 1 As shown, it consists of a grounding grid horizontal equalizing conductor 1 buried in the ground, a remote control drone 2, a signal transmitting system 3, a receiving system 4 and a background terminal system 5. The signal transmitting system 3 has a working frequency of 400Hz and outputs An intermediate frequency sine wave AC constant current source with an open circuit voltage of 1-50V and an output current of 1-100A. The receiving system 4 is composed of a magnetic field detection unit installed on the remote control drone 2 and a position coordinate and data wireless transmission unit. The background terminal system 5 It is composed of a wireless receiving unit, a host computer and software installed on the host computer. The signal transmission system injects a sine wave current signal into the grid-shaped ground grid horizo...

Embodiment 2

[0040] The device is the same as in Embodiment 1, for the local distribution of the magnetic field on the ground surface of a certain 500kV substation grounding grid, see Figure 7 , From the results, there are serious defects in the horizontal equalizing conductor at x=50m, y=50-60m, after excavation, inspection and inspection, it shows that the conductor of this section is flat steel, which has been completely broken due to corrosion.

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Abstract

The invention relates to a remote control detecting device for the corrosion state of a grounding grid horizontal voltage-sharing conductor of a substation, for detecting the corrosion state of a grounding grid under the condition of power-on operation of the substation. The device mainly solves the problems of large workload, low accuracy, complex operation and the like in the current method for detecting the broken point and the corrosion state of the grounding grid. The remote control detecting device for the corrosion state of the horizontal voltage-sharing conductor of the substation grounding grid comprises an underground grounding grid horizontal voltage-sharing conductor, and further comprises a remote control unmanned aerial vehicle, a signal transmitting system, a receiving system and a background terminal system, wherein the receiving system is composed of a magnetic field detecting unit and a position coordinate and data wireless transmission unit which are arranged on the remote control unmanned aerial vehicle; and the background terminal system is composed of a wireless receiving unit, an upper computer and software installed in the upper computer.

Description

technical field [0001] The invention relates to a remote detection device for detecting the corrosion state of a horizontal equal-voltage conductor of a substation grounding grid by remote control when the substation is running with electricity. Background technique [0002] The grounding grid is a necessary facility for the substation of the power transmission and distribution project. The grounding grid plays a very important role in the safe operation of the power system. First of all, it is required for work to provide a public reference ground for various electrical equipment in the substation. It is also a safety The need for protection, when the power system has a short-circuit fault or is struck by lightning, it can quickly discharge the fault current and reduce the ground potential rise in the protected area, protecting the personal safety of the staff and the safe and normal operation of various electrical equipment. The grounding grid of a substation is usually we...

Claims

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Application Information

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IPC IPC(8): G01R31/08G08C17/02
Inventor 何亮李新星要利华张志伟林选杨鑫翟帅白浩李隆江杨雯晴
Owner LINFEN POWER SUPPLY COMPANY OF STATE GRID SHANXI ELECTRIC POWER