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Overall operation system based on distribution network inspection tool

A technology for operating systems and tools, applied in general control systems, control/regulation systems, inspection time patrols, etc. Effect

Pending Publication Date: 2022-03-22
国网青海省电力公司玉树供电公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. High risk: The grounding lead must be artificially disconnected during measurement. At this time, the system is temporarily running at the neutral point without grounding. If the low-voltage line or equipment has a grounding point, the terminal of the grounding lead may carry phase voltage, which is more dangerous. ;
[0005] 2. Large workload: Due to the large number of equipment, the points should be multi-faceted and scattered, the workload of manual measurement is large, and it is not easy to supervise. If there is any missed inspection, it is easy to cause safety hazards;
[0006] 3. The test cycle is too long: generally once a year according to the requirements. In fact, due to the large number of equipment, this goal is also difficult to achieve. In addition, during the operation of the equipment, due to soil changes, grounding body corrosion, and grounding wire looseness, etc., grounding Resistance may change at any time;
[0007] 4. It is impossible to monitor the dangerous overvoltage of the equipment shell due to poor grounding, which is also the direct cause of the accident

Method used

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  • Overall operation system based on distribution network inspection tool
  • Overall operation system based on distribution network inspection tool
  • Overall operation system based on distribution network inspection tool

Examples

Experimental program
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Effect test

Embodiment 1

[0028] The temperature detector includes a detection module, a forwarding module, a terminal module and a software module, and the detection module includes a temperature sensor, a pressure sensor, a signal conversion circuit, a signal conditioning circuit, a first processing unit, a first power supply unit and a first storage unit, the detection module is used to obtain the temperature value of the knife switch and send it to the forwarding module, and the forwarding module is used to receive and store the temperature value of the knife switch and forward it to the terminal module; the terminal module uses In order to compare the temperature value of the knife switch sent by the forwarding module with the system setting value, the software module is used to edit the system setting value and send it to the terminal module, and the terminal The module communicates with the software module through a USB interface, the temperature sensor is used to obtain the temperature value of ...

Embodiment 2

[0030] The signal detector includes a single-chip microcomputer, a radio frequency card reader module, a timing chip, a magnetic induction switch module and a wireless radio frequency module, and the signal output terminals of the radio frequency card reader module and the magnetic induction switch module are respectively connected to different input ports of the single chip microcomputer, and the timing chip The I / O, SCLK, and RSET ends of the SCM are respectively connected to each port of the single-chip microcomputer. The wireless radio frequency module adopts CC1110, and the single-chip microcomputer communicates with the background computer through the wireless radio frequency module, the gateway node module and the public network interface module. Within time (for example, 1 hour), if the front-end staff completes the operation and closes the cabinet door, the magnetic induction switch module U5 will send the monitored door closing signal to the single-chip microcomputer U1;...

Embodiment 3

[0032] The radiator adopts electromagnetic active heat dissipation technology to solve the internal heat dissipation problem of the tool, and makes the service life of the smart tool for distribution network operation and inspection ≥ 50,000 hours, thereby improving the heat dissipation performance and prolonging the service life.

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Abstract

The invention relates to the technical field of low-voltage power distribution safety, in particular to an overall operation system based on a distribution network inspection tool, which comprises a background computer, a distribution network operation inspection intelligent tool and a distribution transformer distribution box, the distribution transformer distribution box comprises a master controller, a current sensor, a voltage sensor, a controlled power frequency current generator, a communication transmission module and a current transformer installed on a grounding lead. A distribution network operation inspection intelligent tool is used for monitoring and analyzing data state signals such as the inclination angle of an electric pole, the temperature of a cable, a connector and a disconnecting link connector, an abnormal opening signal of a box door, grounding resistance of a distribution transformer district, heat dissipation and service life of the tool, the state of inspection personnel and the like; a distribution network operation and maintenance intelligent tool needs to process data collected by various sensors in real time, accurate analysis and judgment are carried out, the effects of scientific management, high efficiency, accuracy and safety are achieved by applying 4G and 5G communication technologies and software and hardware research and development scientific and technological means, and the distribution network operation and maintenance intelligent tool has high reliability and applicability.

Description

technical field [0001] The invention relates to the technical field of low-voltage power distribution safety, in particular to an overall operation system based on distribution network inspection tools. Background technique [0002] Unqualified grounding resistance in the public distribution station area can easily lead to serious safety hazards such as residual current action protector failure, equipment casing electrification, etc. If it is not handled in time, it may cause vicious safety accidents such as electric shock casualties for humans and animals, and equipment damage. [0003] According to the operation regulations of low-voltage equipment, the management personnel should manually measure the grounding resistance of the equipment in the low-voltage distribution station area at least once a year, and if it does not meet the standard, it will be renovated. The measurement method currently used is still manual measurement. The main disadvantages of manual measuremen...

Claims

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Application Information

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IPC IPC(8): G01D21/02G05B19/042G07C1/20
CPCG01D21/02G05B19/0428G07C1/20
Inventor 刘志镔吕紫微黄鹏天李有鹏潘兹勇潘博超解占良才它尼玛
Owner 国网青海省电力公司玉树供电公司
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