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Overhead-type fault indication positioning terminal and ground voltage measurement method

A technology for locating terminals and fault indications, applied to fault locations, detecting faults according to conductor types, measuring devices, etc., can solve problems such as locating terminals without matching fault indications

Active Publication Date: 2016-12-14
NARI TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This requires the fault indicator to be able to monitor the voltage value of the line to ground in real time, and to achieve a certain accuracy, but there is currently no matching fault indication and positioning terminal

Method used

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  • Overhead-type fault indication positioning terminal and ground voltage measurement method
  • Overhead-type fault indication positioning terminal and ground voltage measurement method
  • Overhead-type fault indication positioning terminal and ground voltage measurement method

Examples

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0032] Such as figure 1 As shown, an overhead fault indication and location terminal includes a capacitive sensor arranged in the electric field of the overhead line, the capacitive sensor is used as a measuring probe, and the capacitive sensor is connected to the CPU of the fault indication and location terminal through a conditioning circuit.

[0033] Such as figure 2 As shown, the capacitive sensor is a planar structure, which is composed of a specially designed PCB. The capacitive sensor includes two polar plates 1, a dielectric 2 arranged between the polar plates 1, and a protective layer 3 arranged outside the polar plates 1. It is small in size, low in cost, and easy to manufacture. Th...

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Abstract

The invention discloses an overhead-type fault indication positioning terminal, and the terminal comprises a capacitive sensor which is disposed in an overhead line electric field, wherein the capacitive sensor is connected to a CPU of the terminal through a conditioning circuit. The invention also discloses a ground voltage measurement method for the terminal. The method achieves the real-time measurement of the ground voltage of an overhead line, captures the change of the ground voltage of the overhead line, and provides basis for the determining of a grounding fault of a line.

Description

technical field [0001] The invention relates to an overhead fault indication and positioning terminal and a ground voltage measurement method, belonging to the technical field of distribution network automation. Background technique [0002] In order to quickly locate the fault point of the distribution line, reduce the labor intensity of the fault patrol personnel, save manpower and material resources, and improve the reliability of power supply, my country has introduced foreign short-circuit fault indicator technology since the 1990s to detect short-circuit faults in the line. In the 20th century, fault indicators with remote signal transmission functions were developed. Until the 21st century, major domestic manufacturers began to study the problem of single-phase ground fault detection on the line. With the continuous research and development of various scientific research institutes and manufacturers, the current line short circuit fault detection technology is very m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/08G01R19/00
CPCG01R19/0084G01R31/085G01R15/16G01R31/08
Inventor 周华良张红杨志宏童瑞婷邓庆唐成虹
Owner NARI TECH CO LTD
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