CN113049983A - Lightning arrester leakage current non-contact wireless monitoring system - Google Patents
Lightning arrester leakage current non-contact wireless monitoring system Download PDFInfo
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- CN113049983A CN113049983A CN202110270553.9A CN202110270553A CN113049983A CN 113049983 A CN113049983 A CN 113049983A CN 202110270553 A CN202110270553 A CN 202110270553A CN 113049983 A CN113049983 A CN 113049983A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 23
- 238000005259 measurement Methods 0.000 claims abstract description 36
- 238000004891 communication Methods 0.000 claims description 20
- 230000005674 electromagnetic induction Effects 0.000 claims description 17
- 238000012545 processing Methods 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052744 lithium Inorganic materials 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000025274 Lightning injury Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/56—Testing of electric apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a non-contact wireless monitoring system for leakage current of an arrester, which measures the leakage current of the arrester under operating voltage in a non-contact mode, transmits measured data to a background main measurement and control unit in a wireless mode, and ensures that maintenance personnel can safely read real-time data in a place far away from a line to be measured, thereby saving the wiring cost, and users can also timely acquire data, predict faults and eliminate faults through a cloud server, and improving the operation efficiency.
Description
Technical Field
The invention relates to an electric power monitoring system, in particular to a lightning arrester leakage current non-contact wireless monitoring system.
Background
The lightning arrester is an electric appliance for protecting electric equipment from being damaged by high transient overvoltage during lightning stroke, limiting follow current time and normally limiting follow current amplitude. In the transformer substation, the quality of the lightning arrester is closely related to the stable and reliable operation of high-voltage switch equipment, and the leakage current under the operation voltage is an important index of the quality of the lightning arrester. The quality of the arrester is affected by factors such as internal moisture of the arrester or natural aging under long-term operation voltage. In order to ensure the safe operation of the lightning arrester, maintenance personnel can regularly detect the lightning arrester.
With the construction of the smart power grid, the transformer substation needs to realize automatic acquisition, transmission and calculation of information and support functions of real-time automatic control, on-line analysis and decision and the like of the power grid. At present, the quality of the lightning arrester is evaluated by a transformer substation by adopting a traditional access type current measuring method, maintenance personnel need to wait near a measuring line, the efficiency is low, potential safety hazards exist, and the problem that sudden failure cannot be timely solved is solved. Therefore, the real-time monitoring of the leakage current of the lightning arrester under the operating voltage has important significance for the development of the smart power grid.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a non-contact wireless monitoring system for leakage current of an arrester to solve the problem of real-time monitoring of the arrester, aiming at the defects in the prior art.
The invention adopts the following technical scheme:
a non-contact wireless monitoring system for leakage current of an arrester comprises a measuring unit, a background total measurement and control unit and a cloud server, wherein the measuring unit is wirelessly connected with the background total measurement and control unit;
the measuring unit is used for monitoring the lightning arrester in real time and transmitting the acquired measuring data to the background general measurement and control unit in a wireless mode;
the background total measurement and control unit is used for receiving the measurement data of the receiving and testing unit and transmitting the measurement data to the cloud server;
and the cloud server is used for reading out the measurement data related to the background total measurement and control unit and responding to a user instruction.
Wherein the measuring unit comprises a non-contact alternating current measuring device and a micropower wireless communication device;
the non-contact alternating current measuring equipment and the micropower wireless communication equipment are connected in a communication interface mode; the non-contact alternating current measuring equipment is used for completing real-time monitoring of the current of the object to be measured under the condition of operating voltage and transmitting the measured data to the micropower wireless communication equipment; the micro-power wireless communication equipment is used for collecting data, packaging and transmitting the data to the background total measurement and control unit in a wireless mode.
The non-contact alternating current measuring equipment further comprises an electromagnetic induction unit and an embedded processing unit; the electromagnetic induction unit is electrically connected with the embedded processing unit.
The electromagnetic induction unit consists of an iron core and an electromagnetic induction coil, the coil is wound on the iron core, one end of the coil is grounded, and the other end of the coil is connected into the embedded processing unit.
The embedded processing unit further comprises an ADC (analog to digital converter) circuit and an MCU (micro control unit), the MCU receives a current value transmitted by the ADC circuit, and the communication interface transmits current data to be detected generated by the MCU to the micro-power wireless communication equipment through a protocol.
The electromagnetic induction unit is powered by a lithium battery.
The beneficial effect that this application reached:
the lightning arrester leakage current under the operating voltage is measured in a non-contact mode, measured data are transmitted to the background main measurement and control unit in a wireless mode, maintenance personnel can safely read real-time data in a place far away from a line to be measured, wiring cost is saved, a user can also timely acquire data, predict faults and remove faults through a cloud server, and operation efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic flow diagram of the system of the present invention;
FIG. 2 is a schematic view of a single measurement unit of the present invention.
Detailed Description
The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
The embodiments of the present disclosure are described below with specific examples, and other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the disclosure in the specification. It is to be understood that the described embodiments are merely illustrative of some, and not restrictive, of the embodiments of the disclosure. The disclosure may be embodied or carried out in various other specific embodiments, and various modifications and changes may be made in the details within the description without departing from the spirit of the disclosure. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, the present invention provides a non-contact wireless monitoring system for leakage current of an arrester, which includes a measuring unit, a background total measurement and control unit, and a cloud server. The measurement unit is wirelessly connected with the background total measurement and control unit, and the background total measurement and control unit is wirelessly connected with the cloud server; each lightning arrester needs to be matched with a unit measuring unit.
And the measuring units are used for monitoring the lightning arrester in real time, and each unit measuring unit transmits the collected measuring data to the background total measurement and control unit in a wireless mode according to actual requirements and working conditions.
The background general measurement and control unit comprises but is not limited to various terminal devices capable of receiving wireless signals according to protocols, and meets the requirement of real-time performance through wireless communication with the unit measurement unit directly. When a plurality of unit measuring units work, the background general measurement and control unit installed nearby can receive the data frame uploaded by the unit measuring units in a certain range in a wireless mode, the data frame is read according to a protocol, the data is stored according to the independent ID of each unit measuring unit in a time stamp mode, at the moment, a user can check the measuring result of each unit measuring system in the region by accessing the database of the background general measurement and control unit, and the running state of the lightning arrester can be monitored effectively and conveniently in real time.
The background total measurement and control unit can upload data to the cloud server according to a certain rule, such as a month period or under the manual operation of an operator, and a user can remotely access the lightning arrester leakage current monitoring data in the range through a terminal in the same network with the cloud server, so that the monitoring data can be conveniently subjected to big data analysis and the state of the lightning arrester can be planned as a whole.
Referring to fig. 2, the unit measuring unit according to the present invention includes a device to be measured in a non-contact manner and a micropower wireless communication device.
Each non-contact measuring device consists of an electromagnetic induction unit and an embedded processing unit. The electromagnetic induction unit comprises an iron core and an electromagnetic induction coil, the iron core is annular and closed tightly, the object to be measured passes through the iron core, the electromagnetic induction coil is wound on the iron core, one end of the electromagnetic induction coil is connected with the ADC conversion circuit, the other end of the electromagnetic induction coil is grounded, when the object to be measured has changed current, the current mutual inductance principle can be used as a primary winding to generate an induced current on the electromagnetic induction coil, the generated induced current is sent to an ADC conversion circuit in the embedded processing unit, the ADC conversion circuit is changed into a data quantity which can be read by an MCU in the embedded processing unit, the MCU reads a digital quantity transmitted by the ADC conversion circuit, and forming data frames according to a certain protocol and sending the data frames to the communication interface, receiving the data frames and the instructions of the communication interface by the micropower wireless communication equipment, the data frame is transmitted in a wireless mode, and therefore the single unit measurement system works normally.
In summary, the following steps: through arrester leakage current non-contact wireless monitoring system, the non-contact alternating current measuring unit in this scheme can accomplish the real-time supervision to the circuit current value that awaits measuring under the operating voltage's condition to can be through the wireless mode to the backstage total observing and controlling unit upload data, solved a series of problems that traditional access formula current measurement mode brought, also the cost is reduced when having improved efficiency. The background total measurement and control unit can directly access the database and upload data to the cloud, so that maintenance personnel do not need to repeatedly measure on site, data can be monitored at the far end in real time, and efficiency is greatly improved.
The above description is for the purpose of illustrating embodiments of the invention and is not intended to limit the invention, and it will be apparent to those skilled in the art that any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the invention shall fall within the protection scope of the invention.
Claims (6)
1. The utility model provides an arrester leakage current non-contact wireless monitoring system, includes measuring unit, backstage total measurement and control unit and high in the clouds server, its characterized in that:
the measurement unit is wirelessly connected with the background total measurement and control unit, and the background total measurement and control unit is wirelessly connected with the cloud server;
the measuring unit is used for monitoring the lightning arrester in real time and transmitting the acquired measuring data to the background general measurement and control unit in a wireless mode;
the background total measurement and control unit is used for receiving the measurement data of the receiving and testing unit and transmitting the measurement data to the cloud server;
and the cloud server is used for reading out the measurement data related to the background total measurement and control unit and responding to a user instruction.
2. The lightning arrester leakage current non-contact wireless monitoring system according to claim 1, characterized in that:
the measuring unit comprises a non-contact alternating current measuring device and a micropower wireless communication device;
the non-contact alternating current measuring equipment and the micropower wireless communication equipment are connected in a communication interface mode;
the non-contact alternating current measuring equipment is used for completing real-time monitoring of the current of the object to be measured under the condition of operating voltage and transmitting the measured data to the micropower wireless communication equipment;
the micro-power wireless communication equipment is used for collecting data, packaging and transmitting the data to the background total measurement and control unit in a wireless mode.
3. The lightning arrester leakage current contactless wireless system according to claim 2, characterized in that:
the non-contact alternating current measuring equipment also comprises an electromagnetic induction unit and an embedded processing unit;
the electromagnetic induction unit is electrically connected with the embedded processing unit.
4. A lightning arrester leakage current non-contact wireless monitoring system according to claim 3, characterized in that:
the electromagnetic induction unit consists of an iron core and an electromagnetic induction coil, the coil is wound on the iron core, one end of the coil is grounded, and the other end of the coil is connected into the embedded processing unit.
5. A lightning arrester leakage current non-contact wireless monitoring system according to claim 3, characterized in that:
the embedded processing unit further comprises an ADC conversion circuit and an MCU, the MCU receives the current value transmitted by the ADC conversion circuit, and the communication interface transmits current data to be detected generated by the MCU to the micropower wireless communication equipment through a protocol.
6. The lightning arrester leakage current non-contact wireless monitoring system according to claim 3 or 4, characterized in that:
the electromagnetic induction unit is powered by a lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110270553.9A CN113049983A (en) | 2021-03-12 | 2021-03-12 | Lightning arrester leakage current non-contact wireless monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110270553.9A CN113049983A (en) | 2021-03-12 | 2021-03-12 | Lightning arrester leakage current non-contact wireless monitoring system |
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| CN113049983A true CN113049983A (en) | 2021-06-29 |
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| CN202110270553.9A Pending CN113049983A (en) | 2021-03-12 | 2021-03-12 | Lightning arrester leakage current non-contact wireless monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113376470A (en) * | 2021-07-08 | 2021-09-10 | 广西电网有限责任公司电力科学研究院 | Remote monitoring system for running state of lightning protection device |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101399715A (en) * | 2008-10-15 | 2009-04-01 | 北京航空航天大学 | Network test platform and test method for optical fiber channel |
| CN102549870A (en) * | 2009-06-11 | 2012-07-04 | Abb研究有限公司 | Improved control of a power transmission system |
| CN104460638A (en) * | 2014-12-25 | 2015-03-25 | 中国电子科技集团公司第四十一研究所 | Multi-set solar cell test monitoring system |
| CN204287948U (en) * | 2014-12-25 | 2015-04-22 | 中国电子科技集团公司第四十一研究所 | Many groups solar cell test supervisory system |
| CN105182163A (en) * | 2015-09-23 | 2015-12-23 | 厦门红相电力设备股份有限公司 | Ultrahigh voltage DC arrester leakage current online detection system based on cloud technology |
| CN105301323A (en) * | 2015-09-23 | 2016-02-03 | 厦门红相电力设备股份有限公司 | Ultrahigh voltage DC lightning arrester leakage current online detection method by using cloud technology |
| CN205038271U (en) * | 2015-08-27 | 2016-02-17 | 国家电网公司 | No line locking zinc oxide arrester on -line monitoring device of distributing type |
| CN205786925U (en) * | 2016-07-01 | 2016-12-07 | 国网江苏省电力公司宿迁供电公司 | A kind of Zinc-Oxide Arrester on-line monitoring and the diagnostic equipment |
| CN206523552U (en) * | 2017-01-16 | 2017-09-26 | 国网福建省电力有限公司泉州供电公司 | Digital Zinc-Oxide Arrester on-line measuring device |
| CN108562785A (en) * | 2018-01-12 | 2018-09-21 | 国家电网公司 | A kind of wireless networking formula multi-functional counter |
| CN108986723A (en) * | 2018-07-20 | 2018-12-11 | 深圳创维－Rgb电子有限公司 | A kind of self-sensing method and equipment of visual screen display device |
| CN109638966A (en) * | 2018-12-28 | 2019-04-16 | 广州中光电气科技有限公司 | A kind of monitoring of arrester intelligent online, data remote visualization cloud platform system |
| EP3719511A1 (en) * | 2019-04-01 | 2020-10-07 | Raycap Intellectual Property, Ltd. | Sensor and method for remotely monitoring the state of a surge arrester |
| CN111937359A (en) * | 2019-05-14 | 2020-11-13 | 深圳市大疆创新科技有限公司 | Communication address setting method of detection equipment, unmanned aerial vehicle and storage medium |
-
2021
- 2021-03-12 CN CN202110270553.9A patent/CN113049983A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101399715A (en) * | 2008-10-15 | 2009-04-01 | 北京航空航天大学 | Network test platform and test method for optical fiber channel |
| CN102549870A (en) * | 2009-06-11 | 2012-07-04 | Abb研究有限公司 | Improved control of a power transmission system |
| CN104460638A (en) * | 2014-12-25 | 2015-03-25 | 中国电子科技集团公司第四十一研究所 | Multi-set solar cell test monitoring system |
| CN204287948U (en) * | 2014-12-25 | 2015-04-22 | 中国电子科技集团公司第四十一研究所 | Many groups solar cell test supervisory system |
| CN205038271U (en) * | 2015-08-27 | 2016-02-17 | 国家电网公司 | No line locking zinc oxide arrester on -line monitoring device of distributing type |
| CN105301323A (en) * | 2015-09-23 | 2016-02-03 | 厦门红相电力设备股份有限公司 | Ultrahigh voltage DC lightning arrester leakage current online detection method by using cloud technology |
| CN105182163A (en) * | 2015-09-23 | 2015-12-23 | 厦门红相电力设备股份有限公司 | Ultrahigh voltage DC arrester leakage current online detection system based on cloud technology |
| CN205786925U (en) * | 2016-07-01 | 2016-12-07 | 国网江苏省电力公司宿迁供电公司 | A kind of Zinc-Oxide Arrester on-line monitoring and the diagnostic equipment |
| CN206523552U (en) * | 2017-01-16 | 2017-09-26 | 国网福建省电力有限公司泉州供电公司 | Digital Zinc-Oxide Arrester on-line measuring device |
| CN108562785A (en) * | 2018-01-12 | 2018-09-21 | 国家电网公司 | A kind of wireless networking formula multi-functional counter |
| CN108986723A (en) * | 2018-07-20 | 2018-12-11 | 深圳创维－Rgb电子有限公司 | A kind of self-sensing method and equipment of visual screen display device |
| CN109638966A (en) * | 2018-12-28 | 2019-04-16 | 广州中光电气科技有限公司 | A kind of monitoring of arrester intelligent online, data remote visualization cloud platform system |
| EP3719511A1 (en) * | 2019-04-01 | 2020-10-07 | Raycap Intellectual Property, Ltd. | Sensor and method for remotely monitoring the state of a surge arrester |
| CN111937359A (en) * | 2019-05-14 | 2020-11-13 | 深圳市大疆创新科技有限公司 | Communication address setting method of detection equipment, unmanned aerial vehicle and storage medium |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113376470A (en) * | 2021-07-08 | 2021-09-10 | 广西电网有限责任公司电力科学研究院 | Remote monitoring system for running state of lightning protection device |
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Application publication date: 20210629 |