10kV line grounding wire hitching detection device and method

A detection device and line grounding technology, applied in the field of power system, can solve the problems of heavy casualties of construction personnel, time for installation and removal of grounding wires occupying maintenance time, and construction personnel losing protection, etc. The effect of personnel assembly and disassembly time, practicality, convenience and flexibility

Pending Publication Date: 2021-11-16
国网山东省电力公司嘉祥县供电公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of electric inspection and installation of grounding wire, there are the following problems: First, in actual work, the grounding wire is generally connected to the branch drop, the drop of the distribution transformer area or the terminal post, the user load side and the exposed position of the line. The hooking personnel did not conduct an accurate on-site survey and could not install the grounding wire at the exact position, and the construction personnel would lose protection; second, the installation quantity is large and there are potential safety hazards; The biggest hidden danger of casualties is that there are more and more distributed photovoltaic power generation areas, and the total capacity of photovoltaic access is increasing. This puts forward higher requirements for the number and scope of grounding wires installed to ensure The safety of the construction personnel; for the position where the branch has no branch drop, the line is insulated, and there is no grounding hook to install the grounding wire, to ensure the safety of the working place, it must be on the load side of all public and special transformers that may call. Install the grounding wire; the third is that it takes a long time. In the actual situation of the current distribution network maintenance, the number of power outage maintenance of the distribution network is getting less and less, and the time of each power outage is getting shorter and shorter. The time for installing and removing the grounding wire occupies A large part of the maintenance time; Fourth, it is time-consuming and labor-intensive for the safety inspectors to inspect. The safety inspectors need to check all the listed The grounding wires are inspected one by one on site, and it is impossible to intuitively and quickly monitor whether all the ends of the working points and the branches that may send power to the working area of ​​the power outage line have taken safety measures.

Method used

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  • 10kV line grounding wire hitching detection device and method
  • 10kV line grounding wire hitching detection device and method
  • 10kV line grounding wire hitching detection device and method

Examples

Experimental program
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Embodiment 1

[0036] Such as figure 1 As shown, the present disclosure provides a 10kV line ground wire hook-up detection device, including a detection device and a display control system

[0037] The detection device includes a data transmission module, a control module and a power supply module;

[0038] The data transmission module includes a current and voltage detection unit, a running status indicator light and a positioning system;

[0039] The current and voltage detection unit is used to analyze and process the received current and voltage data, numerical variation and pre-stored reference data; it can be understood that the received current and voltage data and numerical variation can be compared with the pre-stored reference data, When the value is higher or lower than the pre-stored reference data, it is considered as a ground fault.

[0040] The positioning system can locate the position of the ground wire in real time, and can send the position to the display control system;...

Embodiment 2

[0049] This embodiment provides a 10kV line grounding wire hooking detection method, using the 10kV line grounding wire hooking detection device as described in the embodiment, the main contents include:

[0050] First cut off the power of the line, connect the grounding wire of the maintenance part to the ground, and then connect the exposed part of the upper line of the grounding wire;

[0051]The display control system can display the position of the grounding wire and the connection status of the grounding wire in real time. By controlling the buckle control device of the grounding wire, the grounding wire can be connected with one key before maintenance. If the connection is not suitable, it can be displayed in real time on the display control system; After that, the buckle control device of the grounding wire can be removed with one button, which reduces the number of times maintenance personnel climb up and down the line and tower, reduces the grounding time, increases t...

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PUM

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Abstract

The invention discloses a 10kV line grounding wire hitching detection device and method. The 10kV line grounding wire hitching detection device comprises a detection device and a display control system, the detection device comprises a current and voltage detection unit, a positioning system and a grounding wire buckle control device. The display control system comprises a display module and a ground wire buckle control unit button; the grounding wire buckle control unit button is connected with the grounding wire buckle control unit and is used for controlling hitching and dismounting of the grounding wire buckle and the exposed part of the circuit; the current and voltage detection unit and the positioning system are respectively connected with the display module so as to realize detection and display of line grounding fault conditions and fault positions; the device disclosed by the invention can realize quick hitching and dismounting of the grounding wire through combined installation; and the construction cost is low, the mounting and dismounting time of personnel is reduced, the accuracy of the hanging position of the grounding wire is improved, the safety of the personnel is improved, and the supervision and troubleshooting time of safety supervision personnel is reduced.

Description

technical field [0001] The disclosure belongs to the technical field of electric power systems, and in particular relates to a detection device and method for connecting a 10kV line grounding wire. Background technique [0002] At present, in the maintenance and construction of power lines, it is necessary to test electricity and install grounding wires at each end of the work site and branch lines (including users) that may send power to the work section of the power outage line. In the process of electric inspection and installation of grounding wire, there are the following problems: First, in actual work, the grounding wire is generally connected to the branch drop, the drop of the distribution transformer area or the terminal post, the user load side and the exposed position of the line. The hooking personnel did not conduct an accurate on-site survey and could not install the grounding wire at the exact position, and the construction personnel would lose protection; se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/52G01R19/165
CPCG01R31/52G01R19/165
Inventor 张晓燕翟华张丽李子然王晨曦靳灿田彦孜孙本川王朝霞狄东照
Owner 国网山东省电力公司嘉祥县供电公司
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