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Intelligent switch feeder terminal with traveling wave distance measurement function

A technology of intelligent switch and feeder terminal, which is applied in the direction of short-circuit test, fault detection according to conductor type, electrical components, etc. It can solve the problems of inaccurate judgment, inability to accurately locate the fault point, missed judgment, etc., so as to reduce power outage time and shorten search and the effect of repairing downtime and improving accuracy

Active Publication Date: 2022-02-25
武汉三相电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing intelligent switch feeder terminals only have the functions of fault isolation and rapid power supply restoration in non-fault areas, and cannot accurately locate the fault point. For single-phase ground faults, the existing intelligent switch feeder terminals have inaccurate or missed judgments And other issues

Method used

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  • Intelligent switch feeder terminal with traveling wave distance measurement function
  • Intelligent switch feeder terminal with traveling wave distance measurement function
  • Intelligent switch feeder terminal with traveling wave distance measurement function

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Embodiment Construction

[0048] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of them.

[0049] The embodiment of the present invention provides an intelligent switch feeder terminal with a traveling wave ranging function. By integrating the traveling wave module with the traditional feeder terminal equipment, the intelligent switch feeder terminal of the present invention not only has the traditional feeder terminal equipment fault isolation and non- In addition to the function of quickly restoring power supply in the fault area, it also has the function of precise fault location, which effectively improves the accuracy of single-phas...

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Abstract

The invention discloses an intelligent switch feeder terminal with a traveling wave distance measurement function, which relates to the field of intelligent control and comprises a signal acquisition and processing module, a control quantity output module, a traveling wave module, a processing module, a display module and a superior communication module. The signal acquisition and processing module is used for converting measured voltage and current signals into digital signals and sending the digital signals to the processing module, and the voltage and current signals comprise line power frequency voltage and current signals and zero sequence voltage and current signals; and the traveling wave module is used for receiving the fault information sent by the processing module, then obtaining the traveling wave current wave head time at the fault moment, and sending the traveling wave current wave head time to the processing module. According to the method, the fault point can be accurately positioned, meanwhile, the accuracy of judging the single-phase earth fault is improved, operation and maintenance personnel are guided to patrol, and the time for searching and repairing the fault is shortened.

Description

technical field [0001] The invention relates to the field of intelligent control, in particular to an intelligent switch feeder terminal with a traveling wave ranging function. Background technique [0002] Intelligent switch feeder terminal unit (FTU for short) has the functions of remote control, telemetry, remote signaling, remote adjustment, fault detection, etc., and is used to communicate with the main station of distribution automation to provide distribution system operation conditions, various parameters and monitoring Information required for control, such as switch status, power parameters, phase-to-phase fault, ground fault, fault parameters, etc., intelligent switch feeder terminals are also used to execute commands issued by the power distribution master station to adjust and control power distribution equipment . [0003] However, the existing intelligent switch feeder terminals only have the functions of fault isolation and rapid power supply restoration in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00G01R31/08G01R31/52
CPCH02J13/00016H02J13/00028H02J13/00001G01R31/085G01R31/52Y02E60/00Y04S10/52Y04S40/124
Inventor 胡枫郑文浪李哲刘业伟王顺新
Owner 武汉三相电气有限公司
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