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Automatic positioning device for grounding failure of power transmission line

A technology for transmission lines and ground faults, which is applied to fault locations, signal transmission systems, instruments, etc., can solve problems such as low work efficiency, time and energy for maintenance personnel, etc., to improve work efficiency, save repair time, and reduce economic losses and the effect of social influence

Inactive Publication Date: 2012-10-24
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, whether it is the comprehensive inspection method or the optimization method, the maintenance personnel need to spend a lot of time and energy, and the work efficiency is extremely low.

Method used

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  • Automatic positioning device for grounding failure of power transmission line
  • Automatic positioning device for grounding failure of power transmission line
  • Automatic positioning device for grounding failure of power transmission line

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Embodiment Construction

[0018] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0019] see Figure 1 to Figure 5 , the transmission line 6 is connected to the outlet side of the main transformer 5 of the substation, each transmission line 6 is composed of a three-phase bus, and each transmission line 6 is provided with several nodes. The present invention is a transmission line grounding fault automatic positioning device, which includes a signal source device 1 connected to the bus side of the main transformer 5, and a number of signal source equipment 1 respectively connected to each phase bus at each node of each transmission line 6 fault display 2, several overhead substations 3 respectively arranged at each node of each transmission line 6, and an information processing center system 4.

[0020] The signal source device 1 includes a resistance box 11, a voltage sensor 12 connected between the neutral point 50 of the...

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Abstract

The invention relates to an automatic positioning device for grounding failure of a power transmission line. The power transmission line is connected with the outgoing wire side of a main transformer of a substation, respectively consists of a three-phase bus and is respectively provided with a plurality of nodes. The positioning device comprises a signal source device connected with the bus side of the main transformer, a plurality of failure displays respectively connected with each phase bus at each node of each power transmission line in a hanging way, a plurality of overhead sub-stations respectively arranged at each node of each power transmission line, and an information processing center system. By adopting the automatic positioning device, operators can promptly and accurately know the safety situation of power transmission lines, the repair time can be saved, the working efficiency can be increased, and the economic losses and social effects caused by line failure can be reduced greatly.

Description

technical field [0001] The invention relates to an automatic positioning device for grounding faults of transmission lines. Background technique [0002] As we all know, due to natural disasters or other factors, transmission lines are inevitably damaged and ground faults occur, especially prone to ground faults on medium and high voltage overhead transmission lines, and the most common fault is single-phase grounding of overhead lines. For this kind of fault, maintenance personnel generally determine the location of the grounding point of the ground fault by detecting the voltage of the line; when looking for the grounding point of a short overhead transmission line, personnel can be arranged to conduct a comprehensive inspection along the line; but for a long overhead transmission line When looking for the grounding point of the transmission line, it is advisable to adopt the optimization method, that is, first segment the tension rod at 1 / 2 of the line length, and disasse...

Claims

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Application Information

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IPC IPC(8): G01R31/08G08C17/02
CPCY04S10/522Y04S10/52
Inventor 王辉吴才彪吴健成潘国强张子兆沈超沈峰陈勇鲁志豪周华周永宝鲍长庚
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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