LU500918B1 - Pollution Flashover Monitoring Device and Method for Transmission Line Insulator String - Google Patents

Pollution Flashover Monitoring Device and Method for Transmission Line Insulator String Download PDF

Info

Publication number
LU500918B1
LU500918B1 LU500918A LU500918A LU500918B1 LU 500918 B1 LU500918 B1 LU 500918B1 LU 500918 A LU500918 A LU 500918A LU 500918 A LU500918 A LU 500918A LU 500918 B1 LU500918 B1 LU 500918B1
Authority
LU
Luxembourg
Prior art keywords
main control
control chip
leakage current
satellite
early warning
Prior art date
Application number
LU500918A
Other languages
German (de)
Inventor
Hao Pan
Fangrong Zhou
Guochao Qian
Original Assignee
Electric Power Res Institute Of Yunnan Power Grid Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Electric Power Res Institute Of Yunnan Power Grid Co Ltd filed Critical Electric Power Res Institute Of Yunnan Power Grid Co Ltd
Priority to LU500918A priority Critical patent/LU500918B1/en
Application granted granted Critical
Publication of LU500918B1 publication Critical patent/LU500918B1/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02—Details
    • H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned

Landscapes

  • Insulators (AREA)

Abstract

The application discloses a pollution flashover monitoring device and method for transmission line insulator strings, which comprises a main control chip, a satellite detection load, a satellite networking module, a humidity monitor, a background monitoring platform, a mobile terminal and a current monitoring component. The satellite detection load is communicatively connected with the main control chip through the satellite object networking module, the satellite detection load controls the start and stop of the current detection component through the main control chip, and the humidity monitor is communicatively connected with the main control chip; the current monitoring component is communicatively connected with the current judging unit in the main control chip, the current monitoring component is provided with a battery, the background monitoring platform is communicatively connected with the wireless transmission unit in the main control chip, and the mobile terminal is communicatively connected with the background monitoring platform.

Description

DESCRIPTION Pollution Flashover Monitoring Device and Method for Transmission Line Insulator String
TECHNICAL FIELD The application relates to the technical field of power pollution protection in power grid, in particular to a pollution flashover monitoring device and method for insulator strings of transmission lines.
BACKGROUND High-voltage power failure will seriously affect industrial production and people's life, and pollution flashover of transmission line insulator string is one of the important reasons for high-voltage power failure. Pollution flashover of insulator strings refers to the fact that atmospheric pollutants accumulate to a certain extent on the insulator surface, and under humid conditions, the insulator surface insulation strength decreases, resulting in an increase in leakage current. When the leakage current on the insulator surface reaches a certain value, flashover occurs, which directly leads to the interruption of power supply of high-voltage lines. Therefore, pollution flashover prevention is the research focus of transmission line operation and maintenance.
At present, the on-line monitoring device is usually used to measure the insulator strings of transmission lines. There are two ways for online monitoring device to measure. One is that the monitoring device measures the leakage current through insulator strings in real time, converts the conductivity, and then converts the pollution degree, so as to master the pollution accumulation of transmission lines. The other is to measure the reflectivity of pollutants under different conditions by spectroscopy, and establish the relationship between pollution degree and reflectivity, so as to calculate the pollution degree and master the pollution accumulation of transmission lines.
In the measuring process of the above-mentioned on-line devices, the power supply of the on-line monitoring device on the tower is difficult because the transmission lines are all over the mountains and mountains, and the on-line monitoring device on the tower continuously monitors the leakage current of the insulator string, which consumes a lot of power. Moreover, the data acquisition period is long, resulting in a long monitoring result, which makes it impossible for the staff to monitor the transmission line insulator strings in time and effectively.
SUMMARY The application provides a pollution flashover monitoring device and method for transmission line insulator strings, aiming at solving the technical problems that the online monitoring device in the prior art has large energy consumption and cannot detect the transmission line insulator strings timely and effectively.
In order to solve the above technical problems, the embodiment of this application discloses the following technical scheme: On the one hand, the embodiment of this application discloses a pollution flashover monitoring device for transmission line insulator strings, which comprises a main control chip, a satellite detection load, a satellite networking module, a humidity monitor, a background monitoring platform, a mobile terminal and a current monitoring component, wherein:
The satellite detection load is communicatively connected with the main control chip through the satellite networking module, the satellite detection load controls the start and stop of the current monitoring component through the main control chip, and the humidity monitor is communicatively connected with the main control chip; The main control chip comprises a current judging unit and a wireless transmission unit, the current monitoring component is in communication connection with the current judging unit, the current monitoring component is provided with a battery, the background monitoring platform is in communication connection with the wireless transmission unit, and the mobile terminal is in communication connection with the background monitoring platform.
Optionally, in the pollution flashover monitoring device of the transmission line insulator string, the mobile terminal is in communication connection with the main control chip through GPRS network.
Optionally, in the pollution flashover monitoring device of the transmission line insulator string, the current monitoring component comprises a clamp ammeter and a leakage current monitor which are connected with each other; the clamp ammeter is fixed to the tower, and the leakage current monitor is in communication connection with the current judging unit.
Optionally, the pollution flashover monitoring device of the transmission line insulator string further comprises a temperature monitor which is in communication connection with the main control chip.
Secondly, the embodiment of this application discloses a pollution flashover monitoring method for transmission line insulator strings, which comprises the following steps: Satellite load remote sensing detects air pollutants in a wide range of power grid, and the main control chip obtains air humidity value through humidity detector; The satellite detection load judges whether the airborne pollutants exceed a preset warning value, and if so, a pollutant start signal is transmitted to the main control chip through the satellite-borne networking module; According to the pollutant starting signal, the current monitoring component collects the leakage current value of the insulator string and transmits the leakage current value to the current judgment unit on the main control chip; According to the leakage current value, the current judging unit makes threshold judgment and classifies early warning grades; The wireless transmission unit on the main control chip transmits the early warning level, the leakage current value and the humidity value to the background monitoring platform; The background monitoring platform records the early warning level, the leakage current value and the humidity value, and pushes the early warning level to the mobile terminal when the early warning level reaches the early warning condition.
Optionally, in the pollution flashover monitoring method of the transmission line insulator string, the satellite detection load judges whether the airborne pollutants exceed the preset warning value, and if so, the pollutant start signal is transmitted to the main control chip through the satellite networking module, which includes: judge whether PM2.5 is greater than 250 ug/m°, PM10 is greater than 400 ug/m°, NO; is greater than 240 ug/m° and SO; is more than 700 ug/m°; if any one of PM2.5, PM10, NO; and SO; is greater than the corresponding warning value, the satellite detection load generates a pollutant start signal; and the satellite detection load transmits the pollutant start signal to the main control chip through the satellite networking module.
Optionally, in the pollution flashover monitoring method of the transmission line insulator string, the method further comprises: according to the air humidity value, the main control chip judges whether the atmospheric relative humidity is greater than 80%; if so, the main control chip generates a humidity start signal; according to the humidity start signal, the current monitoring component collects the leakage current value of the insulator string.
Optionally, in the pollution flashover monitoring method of the transmission line insulator string, the method further comprises: the mobile terminal generates an active start signal and transmits the active start signal to the main control chip; according to the active start signal, the current monitoring component collects the leakage current value of the insulator string.
Optionally, in the pollution flashover monitoring method of the transmission line insulator string, according to the leakage current value, the current judging unit judges the threshold value and classifies the early warning level, which includes: when the leakage current value is greater than 150 mA, it is classified as a first-level early warning;
when the leakage current value is greater than 100 mA and less than 150 mA, it HUS00918 is a secondary warning; when the leakage current value is greater than 50 mA and less than 100 mA, it is the third-level early warning; and when the leakage current value is less than 50 mA, no warning is given.
Optionally, in the pollution flashover monitoring method of the transmission line insulator string, when the early warning level reaches the early warning condition, pushing the early warning level to the mobile terminal comprises: when the warning level is the first warning, the second warning or the third warning, the corresponding warning level is pushed to the mobile terminal.
Compared with the prior art, the application has the beneficial effects that: The application provides a pollution flashover monitoring device and method for transmission line insulator strings. The device comprises a main control chip, a satellite detection load, a satellite networking module, a humidity monitor, a background monitoring platform, a mobile terminal and a current monitoring component, wherein, the satellite detection load is communicatively connected with the main control chip through the satellite object networking module, and the humidity monitor is communicatively connected with the main control chip; the main control chip comprises a current judging unit and a wireless transmission unit, the current monitoring component is in communication connection with the current judging unit, the background monitoring platform is communicatively connected with the wireless transmission unit, and the mobile terminal is communicatively connected with the background monitoring platform. In the process of pollution flashover monitoring, the satellite detection load remotely detects a wide range of airborne pollutants in the power grid, and judges whether the measured airborne pollutants exceed a preset warning value,if so, a pollutant start signal is generated, and the pollutant start signal is transmitted to the main control chip through the satellite networking module.
At the same time, the main control chip can also obtain the air humidity value through the humidity monitor.
After receiving the pollutant starting signal, the main control chip immediately starts the current monitoring component to collect the leakage current value of the insulator string, and the current monitoring component transmits the collected leakage current value to the current judgment unit on the main control chip.
The current judging unit judges the leakage current value by threshold, and classifies the early warning level.
The wireless transmission unit on the main control chip transmits the warning level, leakage current value and humidity value to the background monitoring platform, and the background monitoring platform makes corresponding records.
And when the early warning level reaches the early warning condition, the early warning level is pushed to the mobile terminal, which is convenient for the staff to take corresponding measures to prevent the pollution flashover event of the transmission line insulator string.
In this application, the current monitoring component carries its own power supply, which is usually in standby state.
By means of satellite-ground joint, the monitoring results of large-area airborne pollutants monitored by satellite detection load can be used to realize the quantitative start-up of the current monitoring component, which effectively saves the electricity consumption of the current monitoring component and provides basic conditions for long-term field monitoring in mountainous areas. In addition, in this application, the air pollutant monitoring of space-based and ground-based data fusion is realized through satellite detection load and the result of leakage current value on the tower, so that large-area and continuous power grid pollutant monitoring can be carried out. Workers can obtain the corresponding monitoring results in real time through the mobile terminal, and then can effectively monitor the insulator strings of transmission lines in time, so as to ensure timely maintenance of insulator strings after problems occur.
It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application.
BRIEF DESCRIPTION OF THE FIGURES In order to explain the technical scheme of this application more clearly, the drawings needed in the embodiments will be briefly introduced below. Obviously, for ordinary technicians in the field, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of the basic structure of a pollution flashover monitoring device for transmission line insulator strings provided by an embodiment of the present invention; Fig. 2 is a schematic flow diagram of a pollution flashover monitoring method for transmission line insulator strings provided by an embodiment of the present invention;
Description of the drawings: 1. Main control chip; 11. Current judging unit; 12. Wireless transmission unit; 2. Satellite detection load; 3. On-board networking module; 4. Humidity monitor, 5. Background monitoring platform; 6. Mobile terminal; 7. Current monitoring component; 71. Clamp ammeter; 72. Leakage current monitor; 8. GPRS network; 9. Temperature monitor; 010, tower; 011. Insulator string;
012. Transmission line.
DESCRIPTION OF THE INVENTION In order to make the technical personnel in the technical field better understand the technical scheme in this application, the technical scheme in this application embodiment will be clearly and completely described with reference to the drawings in this application embodiment. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the examples in this application, all other examples obtained by ordinary technicians in the field without creative work should belong to the scope of protection in this application.
Refer to fig. 1, which is a schematic diagram of the basic structure of a pollution flashover monitoring device for transmission line insulator strings provided by an embodiment of the present invention. Referring to fig. 1, the pollution flashover monitoring device in this application includes a main control chip 1, a satellite detection load 2, a satellite networking module 3, a humidity monitors 4, a background monitoring platform 5, a mobile terminal 6 and a current monitoring component 7, wherein, the satellite detection load 2 is communicatively connected with the main control chip 1 through the satellite object networking module 3, the satellite detection load 2 controls the start and stop of the current monitoring component 7 through the main control chip 1, and the humidity monitor 4 is communicatively connected with the main control chip 1. The main control chip 1 includes a current judging unit 11 and a wireless transmission unit 12, and the current monitoring component 7 is communicatively connected with the current judging unit 11, the background monitoring platform 5 is communicatively connected with the wireless transmission unit 12, and the mobile terminal 6 is communicatively connected with the background monitoring platform 5. Among them, the wireless transmission unit 12 is a wireless data terminal of the Internet of Things, which provides the wireless long-distance data transmission function by using the GPRS network of the public operator network. The current monitoring component 7 is provided with a battery, and also includes a clip-on ammeter 71 and a leakage current monitor 72 which are connected with each other. The clip-on ammeter 71 is fixed to the tower 010, and the leakage current monitor 72 is communicatively connected with the current judging unit 11.
In the process of pollution flashover monitoring, the satellite detection load 2 remotely detects a wide range of airborne pollutants in the power grid, and judges whether the measured airborne pollutants exceed a preset warning value. If so, a pollutant start signal is generated, which is transmitted to the main control chip 1 through the satellite-borne networking module 3, and at the same time, the main control chip 1 can also obtain the air humidity value through the humidity monitor 4. After receiving the pollutant start signal, the main control chip 1 immediately starts the current monitoring component 7 to collect the leakage current value of the insulator string 011, and the current monitoring component 7 transmits the collected leakage current value to the current judging unit 11 on the main control chip 1. The current judging unit 11 performs threshold judgment on the leakage current value, and classifies the early warning level. The wireless transmission unit 12 on the main control chip 1 transmits the early warning level, leakage current value and humidity value to the background monitoring platform 5, which makes corresponding records and pushes the early warning level to the mobile terminal 6 when the early warning level reaches the early warning condition.
In this application, the current monitoring component 7 carries its own power supply, which 1s usually in a standby state. By means of satellite-ground combination, the monitoring results of large-area airborne pollutants monitored by the satellite detection load 2 can be used to realize the quantitative start of the current monitoring component 7, effectively saving the electricity consumption of the current monitoring component 7, and providing basic conditions for long-term field monitoring in mountainous areas. In addition, in this application, through the satellite detection load 2, combined with the result of the leakage current value on the tower, the air pollutant monitoring of space-based and ground-based data fusion is realized, and large-area and continuous power grid pollutant monitoring can be carried out. Workers can obtain the corresponding monitoring results in real time through the mobile terminal 6, and then can effectively monitor the insulator string 011 in the transmission line 012 in time, which is convenient for workers to take corresponding measures to ensure timely maintenance of the insulator string after the problem occurs, and prevent the pollution flashover of the insulator string of the transmission line.
Further, the mobile terminal 6 is communicatively connected with the main control chip 1 through the GPRS network 8. The mobile terminal 6 can be a mobile phone, a notebook or a tablet computer, etc. In this application, the active start signal can also be generated by the mobile terminal 6 and transmitted to the main control chip 1, so as to control the current monitoring component 7 to collect the leakage current value of the insulator string. According to the invention, the quantitative start of the current monitoring component 7 can be realized by using the monitoring results of large-area pollutants monitored by the satellite detection load 2 in a satellite-ground joint mode, and the regular start can also be realized by using the mobile terminal 6, which can be one month, one quarter and so on.
In addition, the application also includes a temperature monitor 9 communicatively connected with the main control chip 1, and the temperature value measured by the temperature monitor 9 can be used for temperature correction of the conductivity corresponding to the leakage current value.
Corresponding to the above device, the embodiment of the present invention also provides a pollution flashover monitoring method for transmission line insulator strings. See Figure 2, which is a flow diagram of a pollution flashover monitoring method for transmission line insulator strings provided by the embodiment of the present invention. Referring to fig. 2, the method includes the following steps:
S110, the satellite detection load remotely detects the air pollutants in a wide range of power grids, and the main control chip obtains the air humidity value through the humidity detector; S120, the satellite detection load judges whether the airborne pollutants exceed a preset warning value, and if so, the pollutant start signal is transmitted to the main control chip through the satellite-to-object networking module; S130, according to the pollutant start signal, the current monitoring component collects the leakage current value of the insulator string and transmits the leakage current value to the current judgment unit on the main control chip; S140, according to the leakage current value, the current judging unit judges the threshold value and classifies the early warning grades; S150, the wireless transmission unit on the main control chip transmits the early warning level, the leakage current value and the humidity value to the background monitoring platform; S160, the background monitoring platform records the early warning level, the leakage current value and the humidity value, and pushes the early warning level to the mobile terminal when the early warning level reaches the early warning condition.
In order to further optimize the above technical scheme, the satellite detection load judges whether the airborne pollutants exceed the preset warning value, and if so, the pollutant start signal is transmitted to the main control chip through the satellite networking module, which includes: judge whether PM2.5 is greater than 250 ug/m°, PM10 is greater than 400 ug/m°, NO is greater than 240 ug/m° and SO; is more than
700 ug/m*; if any one of PM2.5, PMI10, NO, and SO, is greater than the corresponding warning value, the satellite detection load will generate a pollutant start signal; the satellite detection load transmits the pollutant start signal to the main control chip through the satellite object networking module.
Because the atmospheric relative humidity has a great influence on the leakage current value of insulator strings, the method in this application also includes: judging whether the atmospheric relative humidity is greater than 80% by the main control chip according to the air humidity value; if so, the main control chip generates a humidity start signal, According to the humidity start signal, the current monitoring component collects the leakage current value of the insulator string.
The pollution flashover monitoring method of the transmission line insulator string provided by the embodiment of the invention also includes: the mobile terminal generates an active start signal and transmits the active start signal to the main control chip; according to the active start signal, the current monitoring component collects the leakage current value of the insulator string. Workers can start the current monitoring component regularly through the mobile terminal.
Furthermore, when the leakage current value exceeds 200mA, the high-voltage line will trip and lose power. Therefore, in this application, according to the leakage current value, the current judging unit makes threshold judgment and divides the early warning level, including: when the leakage current value is greater than 150 mA, it is classified as the first-level early warning; when the leakage current value is greater than 100 mA and less than 150 mA, it is the secondary warning; when the leakage current value is greater than SOmA and less than 100 mA, it is the third-level early warning, When the leakage current value is less than 50 mA, no warning will be given. When the warning level is level 1, level 2 or level 3, that is, when the leakage current value is greater than 50 mA, the background monitoring platform must push the corresponding warning level to the mobile terminal, and the staff can take different countermeasures according to different warning levels.
Since the above embodiments are all described by reference and combination with other methods, different embodiments have the same parts, and the same and similar parts among various embodiments in this specification can be referred to each other. It will not be described in detail here.
It should be noted that in this specification, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a circuit structure, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such circuit structure, article or device. Without further restrictions, the fact that there are elements defined by the sentence "including a ......" does not exclude that there are other identical elements in the circuit structure, articles or equipment including the elements.
Those skilled in the art will easily think of other embodiments of this application after considering the specification and practicing the disclosure of the invention herein. This application 1s intended to cover any variations, uses or adaptive changes of the present invention, which follow the general principles of this application and include common knowledge or customary technical means in the technical field not disclosed in this application. And the true scope and spirit of this application 1s indicated by the content of the claims.
The embodiments of this application described above do not constitute a limitation on the scope of protection of this application.

Claims (10)

CLAIMS LU500918
1. À pollution flashover monitoring device for transmission line insulator strings, characterized by comprising a main control chip (1), a satellite detection load (2), a satellite networking module (3), a humidity monitor (4), a background monitoring platform (5), a mobile terminal (6) and a current monitoring component (7), wherein: and the satellite detection load (2) is communicatively connected with the main control chip (1) through the satellite networking module (3), and the satellite detection load (2) controls the start and stop of the current monitoring component (7) through the main control chip (1), and the humidity monitor (4) is in communication connection with the main control chip (1); the main control chip (1) comprises a current judging unit (11) and a wireless transmission unit (12), the current monitoring component (7) is in communication connection with the current judging unit (11), the current monitoring component (7) is provided with a battery, the background monitoring platform (5) is in communication connection with the wireless transmission unit (12), and the mobile terminal (6) is in communication connection with the background monitoring platform (5).
2. The pollution flashover monitoring device of transmission line insulator string according to claim 1, characterized in that the mobile terminal (6) is in communication connection with the main control chip (1) through GPRS network (8).
3. The pollution flashover monitoring device of transmission line insulator string according to claim 1, characterized in that the current monitoring component (7) comprises a clamp ammeter (71) and a leakage current monitor (72) which are connected with each other; the clip-on ammeter (71) 1s fixed to the tower (010), and the leakage current monitor (72) is in communication connection with the current judging unit (11).
4. The pollution flashover monitoring device of transmission line insulator string according to claim 1, further comprising a temperature monitor (9), which is in communication connection with the main control chip (1).
5. A pollution flashover monitoring method for transmission line insulator strings, characterized in that it uses the automatic control device of power grid frequency according to any one of claims 1 to 4, and the method comprises the HUS00918 following steps: satellite load remote sensing detects air pollutants in a wide range of power grid, and the main control chip obtains air humidity value through humidity detector; the satellite detection load judges whether the airborne pollutants exceed a preset warning value, and if so, a pollutant start signal is transmitted to the main control chip through the satellite-borne networking module; according to the pollutant starting signal, the current monitoring component collects the leakage current value of the insulator string and transmits the leakage current value to the current judgment unit on the main control chip; according to the leakage current value, the current judging unit makes threshold judgment and classifies early warning grades; the wireless transmission unit on the main control chip transmits the early warning level, the leakage current value and the humidity value to the background monitoring platform; the background monitoring platform records the early warning level, the leakage current value and the humidity value, and pushes the early warning level to the mobile terminal when the early warning level reaches the early warning condition.
6. The pollution flashover monitoring method of transmission line insulator strings according to claim 5, characterized in that the satellite detection load judges whether the airborne pollutants exceed a preset warning value, and if so, the pollutant start signal is transmitted to the main control chip through the satellite networking module, which comprises: judge whether PM2 5 is greater than 250 ug/m°, PM10 is greater than 400 ug/m°, NO; is greater than 240 ug/m° and SO; is more than 700 ug/m°; if any one of PM2.5, PM10, NO» and SO» is greater than the corresponding warning value, the satellite detection load generates a pollutant start signal; and the satellite detection load transmits the pollutant start signal to the main control chip through the satellite networking module.
7. The pollution flashover monitoring method of transmission line insulator 7500978 strings according to claim 5, characterized in that the method further comprises: according to the air humidity value, the main control chip judges whether the atmospheric relative humidity is greater than 80%; if so, the main control chip generates a humidity start signal; according to the humidity start signal, the current monitoring component collects the leakage current value of the insulator string.
8. The pollution flashover monitoring method of transmission line insulator strings according to claim 5, characterized in that the method further comprises: the mobile terminal generates an active start signal and transmits the active start signal to the main control chip; according to the active start signal, the current monitoring component collects the leakage current value of the insulator string.
9. The pollution flashover monitoring method of transmission line insulator strings according to claim 5, characterized in that according to the leakage current value, the current judging unit judges the threshold value and classifies the early warning level, which comprises: when the leakage current value is greater than 150 mA, it is classified as a first-level early warning; when the leakage current value is greater than 100 mA and less than 150 mA, it is a secondary warning; when the leakage current value is greater than 50 mA and less than 100 mA, it is the third-level early warning; and when the leakage current value is less than 50 mA, no warning is given.
10. The pollution flashover monitoring method of transmission line insulator strings according to claim 9, characterized in that when the early warning level reaches the early warning condition, pushing the early warning level to the mobile terminal comprises pushing the corresponding early warning level to the mobile terminal when the early warning level is the first warning level, the second warning level or the third warning level.
LU500918A 2021-11-29 2021-11-29 Pollution Flashover Monitoring Device and Method for Transmission Line Insulator String LU500918B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
LU500918A LU500918B1 (en) 2021-11-29 2021-11-29 Pollution Flashover Monitoring Device and Method for Transmission Line Insulator String

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU500918A LU500918B1 (en) 2021-11-29 2021-11-29 Pollution Flashover Monitoring Device and Method for Transmission Line Insulator String

Publications (1)

Publication Number Publication Date
LU500918B1 true LU500918B1 (en) 2022-05-30

Family

ID=81827380

Family Applications (1)

Application Number Title Priority Date Filing Date
LU500918A LU500918B1 (en) 2021-11-29 2021-11-29 Pollution Flashover Monitoring Device and Method for Transmission Line Insulator String

Country Status (1)

Country Link
LU (1) LU500918B1 (en)

Similar Documents

Publication Publication Date Title
CN108011584B (en) Photovoltaic cell on-line monitoring and intelligent management system
KR102309900B1 (en) The iot-based contactless lightning arrester diagnostic device and its management system using the device
CN104571058A (en) Remote online intelligent monitoring system for storage batteries
CN104697653A (en) Temperature pre-warning system for key equipment of ultrahigh-pressure power distributing station based on web
CN110261750A (en) The pollution flashover monitoring device and method of transmission circuit insulator string
CN105471096A (en) Micro-network intelligent monitoring system based on multiple heterogeneous information fusion technology
CN102169135A (en) Resistive current remote online monitoring system for power transmission line arrester
CN110336379A (en) Transformer Substation Online Monitoring System and terminal device based on Internet of Things
CN115091491B (en) Power distribution room maintenance patrol robot and control method thereof
CN201945871U (en) Online monitoring device for resistive current of long-distance power transmission line arrester
CN210689767U (en) Device for monitoring operation condition in cable well
CN114035491B (en) Green intelligent pumping unit system
CN109980782B (en) Wireless monitoring detector and system for safe operation of power transmission and distribution line
CN112202241A (en) Distribution network equipment state monitoring and fault judgment system
CN108933482B (en) Power distribution terminal equipment off-line reason analysis method based on wireless signal intensity
LU500918B1 (en) Pollution Flashover Monitoring Device and Method for Transmission Line Insulator String
CN117791872A (en) Intelligent power supply system and equipment of distribution box
CN106646116A (en) Trouble shooting and locating method for power distribution network
CN210833886U (en) Cable joint temperature monitoring device and system
CN111239551A (en) Transient overhead line fault monitoring device
CN212158839U (en) Power distribution equipment operation monitoring system based on NB-IOT
CN110796880A (en) Residual current detection early warning system for road traffic signal lamp
CN206132904U (en) Novel wisdom fault indication system of 10kv circuit
CN114638485A (en) Full-service ubiquitous power Internet of things danger coefficient induction and fault repair system
CN116504035A (en) Infrared monitoring and early warning device and method for transformer substation capacitor bank

Legal Events

Date Code Title Description
FG Patent granted

Effective date: 20220530