CN202204614U - Monitoring device for measuring lead wire sag and lead wire temperature of overhead transmission line - Google Patents
Monitoring device for measuring lead wire sag and lead wire temperature of overhead transmission line Download PDFInfo
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- CN202204614U CN202204614U CN2011203117269U CN201120311726U CN202204614U CN 202204614 U CN202204614 U CN 202204614U CN 2011203117269 U CN2011203117269 U CN 2011203117269U CN 201120311726 U CN201120311726 U CN 201120311726U CN 202204614 U CN202204614 U CN 202204614U
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Abstract
The utility model relates to a monitoring device for measuring the lead wire sag and lead wire temperature of an overhead transmission line. The monitoring device comprises a monitoring main control board, a radar distance measuring unit which is arranged on the main control board, a lead wire temperature measuring unit, a communication unit and a power supply module, wherein the monitoring main control board is provided with a central processing unit; the radar distance measuring unit is provided with a high-speed sampling unit and a microwave radar distance measuring sensor; the lead wire temperature measuring unit is provided with a high-precision sampling unit and a temperature sensor; the power supply module is provided with a chargeable battery and a high-voltage inductive energy-extraction module; and a communication unit is communicated with a monitoring center or other data receiving units. The monitoring device provided by the utility model can be used for monitoring change conditions of the lead wire sag and the lead wire temperature of the overhead transmission line and alarming in time when an early-warning value is exceeded, so that power line accidents including grounding, short circuit and the like are avoided, wherein the power line accidents are caused by that distances among the overhead transmission line, the ground, trees and buildings are very small due to that the temperature of a lead wire of the overhead transmission line is increased or the lead wire is coated by ice.
Description
Technical field
The utility model relates to the electric power transmission field, relates in particular to a kind of structure of measuring the monitoring device of overhead transmission line conductor sag and conductor temperature.
Background technology
The circuit running temperature raises or wire icing etc. all can cause the increase of line-sag, and the excessive transport capacity that not only limits power circuit of sag also can cause lead phase fault, discharge over the ground, to great electric power accidents such as tree discharges.For example the grow tall sag of situation lower wire of trees changes and can have great electric power accident hidden danger such as ground connection, short circuit usually under the architecture against regulations, line under icing, high temperature, the line.Operation of power networks administrative authority often can not in time grasp the sag situation of change of transmission line of electricity, often causes because sag increases the generation of the great electric power accident that causes.
The utility model content
The purpose of the utility model be to provide a kind of sag conductor temperature situation of change that can monitor overhead power line for a long time, in real time and can with Monitoring Data through closely or long-distance communication network with data transmission to monitoring center; The sag conductor temperature situation of change of overhead power line can in time be understood by monitoring center, guarantees the monitoring device of power circuit safe operation.
For achieving the above object; The utility model provides a kind of monitoring device of measuring overhead transmission line conductor sag and conductor temperature; Comprise the monitoring master control borad, be arranged on the radar range finding unit of monitoring on the master control borad, conductor temperature measuring unit, and power module, wherein said monitoring master control borad is provided with central processing unit; The radar range finding unit is provided with high-speed sampling unit that is connected with central processing unit and the microwave radar distance measuring sensor that is connected with the high-speed sampling unit; The conductor temperature measuring unit is provided with the sampling with high precision unit that is connected with central processing unit, and the temperature sensor that is connected with the sampling with high precision unit; Power module be provided with the rechargeable battery that is connected with central processing unit, and the lead that is connected with rechargeable battery respond to the power taking unit.
Preferably, described monitoring device also comprises the communication unit that is connected with said central processing unit.
Preferably, said communication unit adopts wireless communication mode and monitoring center or other data sink communication.
Preferably, described lead induction power taking unit is stuck in through open-close type current transformer and obtains the energy on the transmission line wire, and through rectification and control protection electric circuit rechargeable battery is charged.
Preferably, the integrated monitoring device of said monitoring device, its shell is a metal shell, is installed on the transmission line wire to be monitored.
The described monitoring device of the utility model can be monitored the lead sag and the conductor temperature situation of change of overhead power line; When surpassing early warning value, in time report to the police, avoided the overhead power transmission line line conductor since temperature increases or wire icing causes over the ground, tree, buildings be apart from the too small generation that causes power circuit accidents such as ground connection, short circuit.
Description of drawings
Fig. 1 is the structural representation of the monitoring device of measurement transmission line wire sag and conductor temperature.
Embodiment
Please with reference to Fig. 1, the monitoring device of measuring transmission line wire sag and conductor temperature comprises monitoring master control borad 1, be arranged on radar range finding unit on the monitoring master control borad 1, conductor temperature measuring unit, and power module.Wherein said monitoring master control borad 1 is provided with central processing unit 2.The radar range finding unit is provided with high-speed sampling unit 3 that is connected with central processing unit 2 and the microwave radar distance measuring sensor 4 that is connected with high-speed sampling unit 3.The conductor temperature measuring unit is provided with sampling with high precision unit 5 that is connected with central processing unit 2 and the temperature sensor 6 that is connected with sampling with high precision unit 5.Power module be provided with the rechargeable battery 7 that is connected with central processing unit 2, and the lead that is connected with rechargeable battery 7 respond to power taking unit 8.Described monitoring device also comprises the communication unit 9 that is connected with said central processing unit 2.
Described radar range finding unit and the integrated equipment of conductor temperature monitoring means are installed on the lead to be monitored (not shown), generally are installed on lead sag maximum.The waveguide profile of microwave radar distance measuring sensor adopts the loudspeaker pattern to make, and the waveguide mouth is to landing ground or trees, buildings etc. during installation.The radar range finding unit through high-speed sampling unit 3, is gathered the radar range finding data of microwave radar distance measuring sensor 4 by monitoring master control borad 1.The microwave radar distance measuring sensor adopts impulse method to find range, and through monitoring master control borad CPU control launching electromagnetic wave, runs into back reflections such as ground, trees, buildings and returns; Need T time delay, establish monitoring device and be L, in time T, receive the electromagnetic wave that returns after pulse of range cells emission to the measured object distance; 2L=CT then; Wherein C is a propagation velocity of electromagnetic wave, and T monitoring master control borad capable of using obtains the L=CT/2 that then can ask through the mode of counting; The monitoring device of asking can be obtained the actual sag of lead to the distance of measured object (ground, trees, buildings).
It is temperature sensor 6 that the conductor temperature measuring unit adopts RTD, adopt with the tight way of contact of lead and measure conductor temperature, during measurement through measuring the change in resistance of RTD, through tabling look-up or calculation mode obtains conductor temperature.Temperature sensor 6 can also be digital temperature sensor, through I
2C/SPI/RS485/RS232/TTL or other digital interfaces are carried out communication with the monitoring master control borad.
Communication unit 9 can send to data data concentrator on the electric force pole tower that is installed in nearby by ZIGBEE module with MANET function or RF radio-frequency module, also can adopt communication modes such as GPRS, note, 3G directly data to be sent to monitoring center.
The power module of monitoring device is made up of rechargeable battery 7 and lead induction power taking unit 8.Lead induction power taking unit adopts bayonet fixing on electrical lead.Inductive coil through induction power taking unit is obtained induction current, and this electric current charges to rechargeable battery after overcommutation, voltage stabilizing.Rechargeable battery is provided with charge-discharge protection circuit, carries out in strict accordance with the charging and discharging of accumulator principle.This induction power taking unit starting electric current is low, can in power circuit electric current 20A～4000A scope, normally use.The general 8AH battery that is equipped with can charge back monitoring device in circuit had a power failure 30 days continuously normally to move at single.
The monitoring device body adopts irony or alloy to process, and reaches the IP66 protection level, closely contacts with electrical lead during installation, and is fixing reliable.
Although more than combine accompanying drawing that the embodiment of the utility model is described, the utility model is not limited to above-mentioned specific embodiments, and above-mentioned specific embodiments only is schematic, guiding, rather than restrictive.Those of ordinary skill in the art under the situation that does not break away from the scope that the utility model claim protected, can also make a variety of forms under the enlightenment of this instructions, these all belong to the row of the utility model protection.
Claims (5)
1. monitoring device of measuring overhead transmission line conductor sag and conductor temperature; It is characterized in that: comprise monitoring master control borad (1), be arranged on the radar range finding unit of monitoring on the master control borad, conductor temperature measuring unit, and power module that wherein said monitoring master control borad is provided with central processing unit (2); The radar range finding unit is provided with high-speed sampling unit (3) that is connected with central processing unit and the microwave radar distance measuring sensor (4) that is connected with the high-speed sampling unit; The conductor temperature measuring unit is provided with the sampling with high precision unit (5) that is connected with central processing unit, and the temperature sensor (6) that is connected with the sampling with high precision unit; Power module be provided with the rechargeable battery (7) that is connected with central processing unit, and the lead that is connected with rechargeable battery respond to power taking unit (8).
2. the monitoring device of measurement transmission line wire sag according to claim 1 and conductor temperature is characterized in that: described monitoring device also comprises the communication unit (9) that is connected with said central processing unit.
3. the monitoring device of measurement transmission line wire sag according to claim 2 and conductor temperature is characterized in that: said communication unit (9) adopts wireless communication mode and monitoring center or other data sink communication.
4. the monitoring device of measurement transmission line wire sag according to claim 1 and conductor temperature; It is characterized in that: described lead induction power taking unit (8) is stuck in through open-close type current transformer and obtains the energy on the transmission line wire, and through rectification and control protection electric circuit rechargeable battery is charged.
5. the monitoring device of measurement transmission line wire sag according to claim 1 and conductor temperature is characterized in that: the integrated monitoring device of said monitoring device, its shell is a metal shell, is installed on the transmission line wire to be monitored.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203117269U CN202204614U (en) | 2011-08-25 | 2011-08-25 | Monitoring device for measuring lead wire sag and lead wire temperature of overhead transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203117269U CN202204614U (en) | 2011-08-25 | 2011-08-25 | Monitoring device for measuring lead wire sag and lead wire temperature of overhead transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202204614U true CN202204614U (en) | 2012-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203117269U Expired - Fee Related CN202204614U (en) | 2011-08-25 | 2011-08-25 | Monitoring device for measuring lead wire sag and lead wire temperature of overhead transmission line |
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| CN (1) | CN202204614U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344170A (en) * | 2013-06-26 | 2013-10-09 | 西安工程大学 | High voltage transmission conductor sag measuring device and method |
| CN103453998A (en) * | 2013-08-09 | 2013-12-18 | 国家电网公司 | Self-energy-taking wireless temperature sensor and achieving method thereof |
| CN104331099A (en) * | 2014-11-17 | 2015-02-04 | 国网河南省电力公司南阳供电公司 | Substation line overvoltage data acquisition and storage monitoring cooling device and monitoring method thereof |
| CN104729412A (en) * | 2015-03-16 | 2015-06-24 | 华南理工大学 | Method for measuring sag of overhead transmission line |
| CN105825649A (en) * | 2016-01-29 | 2016-08-03 | 国家电网公司 | Monitoring device of electric transmission line sag |
| CN110635387A (en) * | 2018-06-22 | 2019-12-31 | 国网江苏省电力有限公司如皋市供电分公司 | Power line tight line balance measuring device |
| CN113324467A (en) * | 2021-05-27 | 2021-08-31 | 贵州电网有限责任公司 | Device and method for monitoring equivalent icing thickness of lead based on ice dielectric capacitance effect |
-
2011
- 2011-08-25 CN CN2011203117269U patent/CN202204614U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344170A (en) * | 2013-06-26 | 2013-10-09 | 西安工程大学 | High voltage transmission conductor sag measuring device and method |
| CN103453998A (en) * | 2013-08-09 | 2013-12-18 | 国家电网公司 | Self-energy-taking wireless temperature sensor and achieving method thereof |
| CN103453998B (en) * | 2013-08-09 | 2016-08-10 | 国家电网公司 | A kind of self-energizing radio temperature sensor and its implementation |
| CN104331099A (en) * | 2014-11-17 | 2015-02-04 | 国网河南省电力公司南阳供电公司 | Substation line overvoltage data acquisition and storage monitoring cooling device and monitoring method thereof |
| CN104729412A (en) * | 2015-03-16 | 2015-06-24 | 华南理工大学 | Method for measuring sag of overhead transmission line |
| CN105825649A (en) * | 2016-01-29 | 2016-08-03 | 国家电网公司 | Monitoring device of electric transmission line sag |
| CN110635387A (en) * | 2018-06-22 | 2019-12-31 | 国网江苏省电力有限公司如皋市供电分公司 | Power line tight line balance measuring device |
| CN113324467A (en) * | 2021-05-27 | 2021-08-31 | 贵州电网有限责任公司 | Device and method for monitoring equivalent icing thickness of lead based on ice dielectric capacitance effect |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120425 Termination date: 20200825 |
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| CF01 | Termination of patent right due to non-payment of annual fee |