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Relay protection outlet testing device

A test device and relay protection technology, which is applied in the direction of measuring device, circuit breaker test, measuring electricity, etc., can solve the problems that cannot guarantee the personal safety and danger of workers, and achieve the effect of ensuring personal safety and avoiding grounding short circuit

Pending Publication Date: 2021-11-02
GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] It is dangerous to use the test device in the prior art to carry out the operation, and the personal safety of the staff cannot be guaranteed

Method used

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Embodiment Construction

[0019] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the application are given in the drawings. However, the present application can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this application more thorough and comprehensive.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the application are only for the purpose of describing specific embodiments, and are not intended to limit the application.

[0021] It can be understood that the terms "first", "second", etc. used in this application may be used t...

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PUM

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Abstract

The invention relates to a relay protection outlet testing device. The device comprises an outlet detection module, a controlled switch and a control module; the outlet detection module is used for being connected with a ground end and an outlet pressing plate, outputting a detection signal when the potential of the outlet pressing plate is a first potential, and stopping outputting the detection signal when the potential of the outlet pressing plate is a second potential; when the relay protection device acts and the outlet pressing plate is connected with the ground end through the outlet detection module, the potential of the outlet pressing plate is a first potential; the controlled switch is used for being connected in series with a grounding loop comprising the outlet detection module and the outlet pressing plate; and the control module is connected with the outlet detection module and the controlled switch, and is used for receiving the detection signal and controlling the controlled switch to be switched off when the duration of the detection signal exceeds a first threshold time. The control module controls the controlled switch to be switched off when the duration of the detection signal exceeds the first threshold time, thereby preventing the bus from being connected with the ground end through the outlet pressing plate and the outlet detection module for a long time, avoiding the risk of grounding short circuit, and guaranteeing the safety of workers.

Description

technical field [0001] The invention relates to the technical field of relay protection, in particular to a relay protection outlet testing device. Background technique [0002] When inspecting the relay protection equipment of the power system, it is necessary to verify whether the outlet action of the relay protection equipment conforms to the set protection logic. The conventional test method is to use a multimeter or a relay protection tester to test the potential change of the outlet pressure plate corresponding to the relay protection device, so as to judge whether the relay protection device operates, and further analyze the correctness of the relay protection device's action logic . [0003] There is certain danger in using the test device in the prior art to carry out operations, and the personal safety of the staff cannot be guaranteed. Contents of the invention [0004] Based on this, it is necessary to provide a high-safety relay protection outlet test device...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G01R31/327
CPCG01R31/00G01R31/3278
Inventor 牛铭林利祥原毅青陈创王幸张海川程振华李津谭桂轩
Owner GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD