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Indoor cabinet partial discharge signal detection system

A discharge signal and detection system technology, applied in information technology support systems, testing circuits, testing dielectric strength, etc., can solve the problems of large equipment volume, low efficiency, and high application costs, to ensure diversity and avoid redundancy. sexual effect

Pending Publication Date: 2022-08-09
GUANGDONG POWER GRID CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] This application provides a partial discharge signal detection system for indoor cabinets, which is used to solve the technical problems of large equipment in the prior art and single detection information, resulting in high application costs and low efficiency

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  • Indoor cabinet partial discharge signal detection system
  • Indoor cabinet partial discharge signal detection system
  • Indoor cabinet partial discharge signal detection system

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Embodiment Construction

[0030] In order to make those skilled in the art better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0031] see figure 2 , During the partial discharge process of the cabinet in the power distribution room, the electrical signal released by the charged body is transmitted to the metal plate of the switch cabinet, and the specific discharge situation can be determined by the signal detection by the sensor on the metal plate. The p...

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Abstract

The invention discloses an indoor cabinet partial discharge signal detection system, and the system is characterized in that a multi-sensor module comprises an ultrahigh frequency sensor, a ground voltage sensor and an ultrasonic sensor, and is used for obtaining a partial discharge signal through various sensors, and obtaining an ultrahigh frequency signal, a ground electric wave signal and an ultrasonic signal; the multiplexing front-end circuit is used for performing path adjustment through a relay and an amplifier and converting the ultrahigh-frequency signal and the ground electric wave signal into voltage to be conditioned, and the voltage to be conditioned comprises ultrahigh-frequency voltage and ground electric wave voltage; the multiplexing conditioning unit is used for carrying out filtering operation, detection operation and signal amplification operation on the voltage to be conditioned to obtain a voltage conditioning signal; and the data processing unit is used for carrying out diagnosis, display, storage and partial discharge analysis operation on the voltage conditioning signal and the conditioned ultrasonic signal. The technical problems that the application cost is high and the efficiency is low due to the fact that equipment in the prior art is large in size and single in detection information are solved.

Description

technical field [0001] The present application relates to the technical field of partial discharge detection, and in particular, to an indoor cabinet partial discharge signal detection system. Background technique [0002] As a key node connecting the grid side and the user side, the power distribution room is an important part of the operation and maintenance of the power grid. The traditional operation and maintenance management mode of the power distribution room can no longer meet the needs of users and the requirements of lean management of the power grid. Its shortcomings are prominent in the operation and maintenance of power grids. dimension, monitoring methods, etc. The working environment of the traditional power distribution room is complex, and it is prone to abnormal working conditions of equipment caused by environmental factors. For example, the power distribution room has problems such as high temperature, static electricity, humidity, condensation, water im...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12G01R31/14
CPCG01R31/1209G01R31/1227G01R31/14Y04S40/126
Inventor 唐琪武利会李国伟陈志平张殷王俊波罗容波范心明董镝李新
Owner GUANGDONG POWER GRID CO LTD
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