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
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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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  • Online monitoring system for leakage current of contaminated insulator

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[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-...

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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.

Description

technical field [0001] The invention relates to the technical field of high-voltage transmission power monitoring, in particular to an online monitoring system for leakage current of dirty insulators. Background technique [0002] With the rapid development of the national economy and the power industry, the voltage level of transmission lines has gradually increased, and insulator pollution flashover accidents have become a major threat to the safe and stable operation of power systems. Especially in recent years, the country has vigorously developed UHV AC and DC transmission, which has put forward higher requirements for the insulation level of insulators. If the insulators are polluted and damp, the insulation performance of the insulators will deteriorate sharply, which will cause pollution flashover in the insulator string, cause pollution flashover trips, and cause large-scale power outages. Contents of the invention [0003] In order to solve the problems in the p...

Claims

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Application Information

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IPC IPC(8): G01R31/02G01R19/00G01D21/02
CPCG01D21/02G01R19/00G01R31/50
Inventor 陈焕栩解浩王曼唐建伟
Owner CHINA UNIV OF MINING & TECH
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