Online monitoring system for leakage current of contaminated insulator

A leakage current and monitoring system technology, applied in the direction of measuring current/voltage, measuring electricity, measuring devices, etc., can solve the problems of insulator pollution and moisture, pollution flashover tripping, deterioration of insulator insulation performance, etc., and achieve the effect of avoiding power accidents.

Inactive Publication Date: 2017-02-22
CHINA UNIV OF MINING & TECH
7 Cites 3 Cited by

AI-Extracted Technical Summary

Problems solved by technology

If the insulators are polluted and damp, the insulation performance of the insulators will deteriorate sharply, causin...
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Abstract

The invention discloses an online monitoring system for leakage current of a contaminated insulator. The online monitoring system for leakage current of the contaminated insulator comprises a monitoring terminal 1, a communication module 2 and a monitoring center 3, and is characterized in that the monitoring terminal comprises a current sensor 1-1, a humidity sensor 1-2, a temperature sensor 1-3, a power module 1-4 and a control main board 1-5, and is used for detecting the leakage current of the insulator and diagnosing a pollution flashover state; the communication module 2 comprises a network 2-1 and a mobile phone terminal 2-2 and is used for transmitting and receiving monitoring information; and the monitoring center 3 comprises a server 3-1 and a PC terminal 3-2, and is used for receiving, displaying and recording the monitoring information. When the online monitoring system for leakage current of the contaminated insulator is used and pollution flashover early warning of the insulator occurs, early warning information can be automatically displayed on an interface of background monitoring software, meanwhile, the monitoring terminal can transmit the early warning information to a mobile phone of a warning receiving person, and then maintenance personnel can rapidly solve problems. The online monitoring system for leakage current of the contaminated insulator can monitor in real time, and is safe and reliable, and electric power accidents can be avoided to the greatest extent.

Application Domain

Current/voltage measurementElectrical testing

Technology Topic

Pollution flashoverEngineering +10

Image

  • Online monitoring system for leakage current of contaminated insulator

Examples

  • Experimental program(1)

Example Embodiment

[0015] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless specifically stated, can be replaced by other equivalent or equivalent alternative features. That is, unless otherwise stated, each feature is just one example of a series of equivalent or similar features.
[0016] Such as figure 1 The shown on-line monitoring system for leakage current of polluted insulators includes a monitoring terminal 1, a communication module 2 and a monitoring center 3. The characteristic is that the monitoring terminal 1 includes a current sensor 1-1, a humidity sensor 1-2, and a temperature sensor. Sensors 1-3, power modules 1-4 and control boards 1-5 are responsible for detecting the leakage current of the insulators and diagnosing pollution flashover; the communication module 2 includes network 2-1 and mobile phone terminal 2-2, responsible for transmission And receiving monitoring information; the monitoring center 3 includes a server 3-1 and a PC terminal 3-2, which is responsible for receiving, displaying and recording monitoring information.
[0017] The monitoring terminal 1 collects parameters such as leakage current, air humidity and ambient temperature of the insulator in real time, makes intelligent diagnosis results for these parameters, and transmits real-time information of the insulator operation to the monitoring center 3 through the communication module 2. Data transmission between the monitoring terminal and the monitoring center is carried out through three modes of GSM/GPRS/4G. The terminal sends real-time status information such as insulator leakage current, meteorological parameters, and pollution flash warning information, and reports to the background monitoring center through GPRS/4G communication. At the same time, the pollution flashover information is sent to the mobile phone of the police receiving personnel in the form of GSM short message, and the monitoring center can query the real-time monitoring information of the insulator of the monitoring terminal at any time. In addition, through the GSM network, the staff can also send commands to the terminal in the form of short messages through the mobile phone, modify the configuration, and query the status information of the insulator. The PC terminal of the background monitoring center is connected with the database server to store various data in real time. When the insulator has a pollution flashover warning, the background monitoring software interface will automatically display the warning information, and the monitoring terminal will also send the warning information to the mobile phone of the police officer, so that the maintenance staff can quickly deal with the problem.
[0018] The present invention is not limited to the foregoing specific embodiments. The present invention extends to any new feature or any new combination disclosed in this specification, and any new method or process step or any new combination disclosed.

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