CN109186804A - A kind of excess temperature operation risk warning device of overhead transmission line parallel groove clamp - Google Patents
A kind of excess temperature operation risk warning device of overhead transmission line parallel groove clamp Download PDFInfo
- Publication number
- CN109186804A CN109186804A CN201810886674.4A CN201810886674A CN109186804A CN 109186804 A CN109186804 A CN 109186804A CN 201810886674 A CN201810886674 A CN 201810886674A CN 109186804 A CN109186804 A CN 109186804A
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- Prior art keywords
- temperature sensor
- parallel groove
- groove clamp
- temperature
- voltage
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K2215/00—Details concerning sensor power supply
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention discloses a kind of excess temperature operation risk warning devices of overhead transmission line parallel groove clamp, including host computer, N number of CT power supply, M measuring terminals and P temperature sensor group, one measuring terminals is connected respectively a temperature sensor group and a CT power supply, M measuring terminals are connect with host computer again, each span route for being equipped with parallel groove clamp is equipped with a temperature sensor group, it include several temperature sensors in each temperature sensor group, the position of temperature sensor in the same temperature sensor group is as follows, the connected temperature sensor in the top surface of each bolt on parallel groove clamp, the bottom center of above-mentioned parallel groove clamp is equipped with a temperature sensor, and temperature sensor there are two respectively symmetrically being set on two aerial condutor side walls clamped by above-mentioned parallel groove clamp.The present invention solves the prior art and lacks the function of alarming the real-time monitoring of overhead transmission line parallel groove clamp temperature and the operation of real-time excess temperature.
Description
Technical field
The invention belongs to power transmission state monitoring technical fields, are related to a kind of overhead transmission line parallel groove clamp excess temperature fortune
Row risk alarm device.
Background technique
The demand of the raising required with the development of economy with people quality of life, electric power is increasing, to power supply
The quality requirement that department provides power supply is also higher, therefore the power grid operation of long-distance transmission line is particularly significant.Frame
Empty transmission line of electricity parallel groove clamp temperature is an important parameter of electric line operation, overhead transmission line parallel groove clamp temperature
It is excessively high to cause parallel groove clamp deterioration, puncture or burn out, so as to cause the broken string of route, seriously affect the normal of transmission line of electricity
Work.To the real-time monitoring of overhead transmission line parallel groove clamp temperature, key can be provided for overhead transmission line early warning system
Data promote safety, the reliability of grid power transmission with the generation of effective trouble saving.
In order to quickly and efficiently inquire cause of accident, reduce line accident caused by economic loss, accurately to accident into
The science data and theoretical foundation of row early warning, full and accurate offer Transmission Line Design and technological transformation, it is necessary to line anomalies
Situation causality expansion research corresponding with various environment, meteorological data, and look for overhead transmission line parallel groove clamp excess temperature
The reason of generation and rule.For existing line, is not changing existing network structure and ensuring power grid security reliability service
Under the premise of, according to the environmental parameter (environment temperature, wind speed, wind direction, intensity of sunshine etc.) of overhead transmission line, overhead transmission line
Conductor temperature folded by road parallel groove clamp temperature and parallel groove clamp both ends assesses the excess temperature operation risk of overhead transmission line in real time, can
To reduce a possibility that electric power accident occurs to the full extent.
In recent years, domestic power grid occurs much because of accident caused by overhead transmission line temperature anomaly state, therefore each research
Mechanism has conducted extensive research the exploitation of overhead transmission line state analysis theory and monitoring system.Application publication number is
The Chinese invention patent " a kind of conductor temperature monitoring system " of " 106932108 A of CN " discloses a kind of conductor temperature monitoring system
It unites, but its monitoring system is too simple, only the real-time display of conductor temperature.Application publication number is " 108233538 A's of CN "
Chinese invention patent " transmission line wire real-time monitoring system for state ", discloses a kind of transmission line wire status real time monitor
System, although monitoring system comparatively perfect, monitoring object are still limited to conducting wire.Application publication number is " CN 202661195
The utility model patent " temperature of electric transmission line sensing device and temperature of electric transmission line monitoring system " of U " discloses a kind of conducting wire company
The temperature of electric transmission line sensing device and temperature of electric transmission line monitoring system of connection device, monitoring object is wire connection device, but
It when being temperature data uploading to background terminal, needs artificially to judge, is difficult accurately to judge.The present invention is a kind of aerial
The excess temperature operation risk warning device of transmission line of electricity parallel groove clamp, for overhead transmission line parallel groove clamp, system bulk is small, counts
It is high, low in cost according to monitoring accuracy, can all weather operations, backstage monitoring data can automatic early-warning after risk assessment.
Summary of the invention
The purpose of the present invention is to provide a kind of excess temperature operation risk warning device of overhead transmission line parallel groove clamp, solutions
The prior art of having determined lacks the function to the real-time monitoring of overhead transmission line parallel groove clamp temperature and the operation alarm of real-time excess temperature.
The technical solution for realizing the aim of the invention is as follows: a kind of excess temperature operation risk of overhead transmission line parallel groove clamp
Warning device, including host computer, N number of CT power supply, M measuring terminals and P temperature sensor group, N=M=P, N >=1, a survey
Amount terminal is connected respectively a temperature sensor group and a CT power supply, and M measuring terminals are connect with host computer again, each
A span route equipped with parallel groove clamp is equipped with a temperature sensor group, includes several in each temperature sensor group
The position of temperature sensor, the temperature sensor in the same temperature sensor group is as follows, each bolt on parallel groove clamp
Top surface is connected a temperature sensor, and the bottom center of above-mentioned parallel groove clamp is equipped with a temperature sensor, and above-mentioned and ditch line
Temperature sensor there are two respectively symmetrically being set on two clamped aerial condutor side walls of folder.
Compared with prior art, the present invention its remarkable advantage is: (1) small in size, data monitoring precision is high, at low cost
It is honest and clean, can all weather operations, backstage monitoring data can automatic early-warning after host computer is handled.
(2) human and material resources and time can be saved, can avoid causing big face power outage, provide for safety power transmission and effectively arrange
It applies, can be widely used on high pressure overhead power line.
Detailed description of the invention
Fig. 1 is parallel groove clamp temperature measuring positions schematic top plan view of the invention.
Fig. 2 is parallel groove clamp temperature measuring positions elevational schematic view of the invention.
Fig. 3 is parallel groove clamp temperature measuring positions side schematic view of the invention.
Fig. 4 is a kind of composed structure schematic diagram of the invention.
Fig. 5 is the structural schematic block diagram of measuring terminals of the invention.
Fig. 6 is the structural schematic block diagram of CT power supply of the invention.
Fig. 7 is tip electrical block diagram of the invention.
Specific embodiment
Present invention is further described in detail with reference to the accompanying drawing.
Embodiment 1, in conjunction with Fig. 1 to Fig. 4, a kind of excess temperature operation risk warning device of overhead transmission line parallel groove clamp,
It is distributed in the overhead transmission line road for needing parallel groove clamp to monitor.The excess temperature operation risk of the overhead transmission line parallel groove clamp
Warning device includes the measuring terminals 13 and 8 temperature sensor group 19 of CT power supply 12,8 of host computer 14,8, and a measurement is eventually
End 13 is connected respectively 12,8 measuring terminals 13 of a temperature sensor group 19 and a CT power supply and connects again with host computer 14
It connects, each span route for being equipped with parallel groove clamp 3 is equipped with a temperature sensor group 19, each temperature sensor group 19
In include 8 temperature sensors, the position of the temperature sensor in the same temperature sensor group 19 is as follows:
Because parallel groove clamp 3 under actual condition non-isothermal body, therefore multiple temperature acquisition points need to be arranged, with comprehensive monitoring parallel groove clamp
3 temperature.3 measurement points are arranged in three 2 top surfaces of fastening bolt on parallel groove clamp 3, arrange temperature sensor (4,5,6),
To measure the temperature of the fastening bolt 2 on parallel groove clamp 3.As shown in Fig. 2, a survey is placed by the bottom center in parallel groove clamp 3
Point is measured, temperature sensor 7 is arranged, for measuring 3 bottom center's temperature of parallel groove clamp.As shown in figure 3, folded by the parallel groove clamp 3
Two measurement points are respectively placed in conducting wire two sides, arrange temperature sensor (8,9,10,11), for measuring conducting wire folded by parallel groove clamp 3
The temperature of side.
As shown in figure 5, the measuring terminals 13 include 28035 digital signal processors (DSP) 15, current transformer 16,
GPRS module 17, wind speed wind direction sensor 18, temperature sensor group 19, barometric pressure sensor 20, solar radiation sensor 21
With environment temperature sensor 22.Thermistor can be used to measure a plurality of parallel groove clamps 3 in a span for temperature sensor group 19
With the temperature of conducting wire folded by parallel groove clamp 3, measuring terminals 13 are sent the data to by serial communication.In operational process, measurement
Terminal 13 is powered by CT power supply 12.Wind speed wind direction sensor 18, barometric pressure sensor 20, solar radiation sensor 21, ring
Border temperature sensor 22, current transformer 16 are connected with the AD pin of DSP15 respectively；The SPI pin of current transformer and DSP15
It is connected；GPRS module is connected with the UART pin of DSP15；CT power supply 12 is connected with DSP15, powers to DSP15；By temperature sensing
Device group 19 acquires conductor temperature folded by parallel groove clamp and parallel groove clamp, acquires ambient wind velocity and wind by wind speed wind direction sensor 18
To by the acquisition environment atmospheric pressure of barometric pressure sensor 20, by the acquisition environment solar radiation of solar radiation sensor 21, by ring
Border temperature sensor 22 acquires environment temperature, and above-mentioned data are transferred to DSP15, and DSP15 is transferred to by GPRS module 17
Host computer 14.
The CT power supply 12 includes electricity-fetching module 121, electric energy conditioning module 122.
In conjunction with Fig. 6 and Fig. 7, the electricity-fetching module 121 includes a bus 1211, current transformer core 1212, secondary
Coil 1213, sample resistance 1214, single-pole double-throw relay 1215, one time bus 1211 passes perpendicularly through current transformer core
1212, secondary coil 1213 is wound on current transformer core 1212, and secondary coil is in parallel with sample resistance 1214, then with hilted broadsword
Double-throw relay 1215 is connected；
The electric energy conditioning module 122 includes that the rectification circuit 1221, tip leadage circuit 1222, ripple of parallel connection filter out capacitor
1223 and voltage regulator circuit 1224, the tip leadage circuit 1222 include voltage-stabiliser tube 12221, voltage-stabiliser tube current-limiting resistance 12222,
The gate pole current-limiting resistance 12225 of power tube 12223, bleeder resistance 12224 and power tube, power tube 12223 and bleeder resistance
12224 series connection are rectifier bridge, voltage-stabiliser tube 12221 connect with voltage-stabiliser tube current-limiting resistance 12222 after with the direct current output of rectifier bridge simultaneously
Connection, the gate pole current-limiting resistance 12225 of power tube are connected in parallel between voltage-stabiliser tube current-limiting resistance 12222 and the gate pole of power tube 12223,
To control the voltage of 12223 on or off of power tube；
The alternating current of constant amplitude is connected on bus 1211, around will generate alternating magnetic field, and it is mutual in electric current
The magnetic flux of alternation is generated on sensor magnetic core 1212, this magnetic flux will induce the induced current of alternation on secondary coil 1213,
Induced current becomes electromotive force on sample resistance 1214 and exports；It is described under conditions of single-pole double-throw relay 1215 is closed
The rectified circuit 1221 of induced electromotive force becomes pulsating dc voltage after rectifying, and pulsating dc voltage is through the tip leadage circuit
After 1222, the spike energy of pulsating direct current is released, then filters out capacitor 1223 through ripple and filters out biggish voltage ripple, is filtered out
Voltage afterwards is down to 24V after voltage regulator circuit 1224 again, for using.
The measuring terminals 13 of the present embodiment carry out accurate thermometric to overhead transmission line parallel groove clamp using multiple sensors,
Temperature data is uploaded to measuring terminals 13 by serial communication, and measuring terminals 13 pass through GPRS module for monitoring data and environment gas
Image data is uploaded to background monitoring host computer 14.
Claims (4)
1. a kind of excess temperature operation risk warning device of overhead transmission line parallel groove clamp, it is characterised in that: including host computer
(14), N number of CT power supply (12), M measuring terminals (13) and P temperature sensor group (19), N=M=P, N >=1, a measurement is eventually
End (13) is connected respectively a temperature sensor group (19) and a CT power supply (12), M measuring terminals (13) again with it is upper
Position machine (14) connects, each span route for being equipped with parallel groove clamp (3) is equipped with a temperature sensor group (19), each
It include several temperature sensors in temperature sensor group (19), the temperature sensor in the same temperature sensor group (19)
Position is as follows, the connected temperature sensor in the top surface of each bolt, the bottom of above-mentioned parallel groove clamp (3) on parallel groove clamp (3)
Face center is equipped with a temperature sensor, and on two aerial condutor side walls clamped by above-mentioned parallel groove clamp (3) respectively symmetrically
If there are two temperature sensors.
2. the excess temperature operation risk warning device of overhead transmission line parallel groove clamp according to claim 1, feature exist
In: the measuring terminals (13) include DSP(15), current transformer (16), GPRS module (17), wind speed wind direction sensor
(18), temperature sensor group (19), barometric pressure sensor (20), solar radiation sensor (21), environment temperature sensor
(22)；Temperature sensor group (19), wind speed wind direction sensor (18), barometric pressure sensor (20), solar radiation sensor
(21), environment temperature sensor (22), current transformer (16) are connected with the AD pin of DSP(15) respectively；Current transformer with
DSP(15 SPI pin) is connected；GPRS module is connected with the UART pin of DSP(15)；CT power supply (12) is connected with DSP(15),
It powers to DSP(15)；Conductor temperature folded by parallel groove clamp and parallel groove clamp is acquired as temperature sensor group (19), by wind speed and direction
Sensor (18) acquires ambient wind velocity and wind direction, environment atmospheric pressure is acquired by barometric pressure sensor (20), by solar radiation
Sensor (21) acquires environment solar radiation, acquires environment temperature by environment temperature sensor (22), and above-mentioned data are transmitted
Host computer (14) are transferred to by GPRS module (17) to DSP(15), DSP(15).
3. the excess temperature operation risk warning device of overhead transmission line parallel groove clamp according to claim 1, feature exist
In: the CT power supply (12) includes connected electricity-fetching module (121) and electric energy conditioning module (122)；
The electricity-fetching module (121) include a bus (1211), current transformer core (1212), secondary coil (1213),
Sample resistance (1214), single-pole double-throw relay (1215), one time bus (1211) passes perpendicularly through current transformer core
(1212), secondary coil (1213) is wound on current transformer core (1212), and secondary coil is in parallel with sample resistance (1214),
It connects again with single-pole double-throw relay (1215)；
The electric energy conditioning module (122) includes that the rectification circuit (1221), tip leadage circuit (1222), ripple of parallel connection filter out
Capacitor (1223) and voltage regulator circuit (1224), the tip leadage circuit (1222) include voltage-stabiliser tube (12221), voltage-stabiliser tube limit
Leakage resistance (12222), power tube (12223), bleeder resistance (12224) and power tube gate pole current-limiting resistance (12225), power
It manages (12223) and bleeder resistance (12224) series connection is rectifier bridge, voltage-stabiliser tube (12221) and voltage-stabiliser tube current-limiting resistance (12222) are gone here and there
In parallel with the direct current output of rectifier bridge after connection, the gate pole current-limiting resistance (12225) of power tube is connected in parallel on voltage-stabiliser tube current-limiting resistance
(12222) between the gate pole of power tube (12223), to control the voltage of power tube (12223) on or off；
The alternating current of constant amplitude is connected on bus (1211), around will generate alternating magnetic field, and in electric current
The magnetic flux of alternation is generated on transformer core (1212), this magnetic flux will induce the induction of alternation on secondary coil (1213)
Electric current, induced current become electromotive force on sample resistance (1214) and export；In the item of single-pole double-throw relay (1215) closure
Under part, become pulsating dc voltage after the rectified circuit of induced electromotive force (1221) rectification, described in pulsating dc voltage warp
After tip leadage circuit (1222), the spike energy of pulsating direct current is released, then filtering out capacitor (1223) through ripple will be biggish
Voltage ripple filters out, and the voltage after filtering out is down to 24V after voltage regulator circuit (1224) again, for using.
4. the excess temperature operation risk warning device of overhead transmission line parallel groove clamp according to claim 1, feature exist
In: the host computer (14) is using environment temperature, wind speed, wind direction, sunshine and atmospheric pressure as inputting, on parallel groove clamp (3) respectively
The temperature that temperature sensor measures sets parallel groove clamp (3) excess temperature operation risk threshold value as output, works as parallel groove clamp
(3) when the excess temperature probability of temperature is higher than the threshold value, host computer (14) exports excess temperature and runs warning message.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810886674.4A CN109186804A (en) | 2018-08-06 | 2018-08-06 | A kind of excess temperature operation risk warning device of overhead transmission line parallel groove clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810886674.4A CN109186804A (en) | 2018-08-06 | 2018-08-06 | A kind of excess temperature operation risk warning device of overhead transmission line parallel groove clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109186804A true CN109186804A (en) | 2019-01-11 |
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ID=64920332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810886674.4A Pending CN109186804A (en) | 2018-08-06 | 2018-08-06 | A kind of excess temperature operation risk warning device of overhead transmission line parallel groove clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109186804A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060265175A1 (en) * | 2005-05-09 | 2006-11-23 | Manuchehr Shimohamadi | Low-cost multi-span conductor temperature measurement system |
| CN102564493A (en) * | 2011-10-28 | 2012-07-11 | 江苏省电力公司连云港供电公司 | Online monitoring system for galloping of overhead power transmission line |
| CN202562629U (en) * | 2012-03-30 | 2012-11-28 | 山西省电力公司太原供电分公司 | High voltage power transmission line strain drainage wire clamp temperature testing system |
| CN105651344A (en) * | 2016-04-06 | 2016-06-08 | 南彦勃 | Cable clamp state detection system and method |
| CN206114132U (en) * | 2016-10-27 | 2017-04-19 | 江苏畅源电气设备有限公司 | A temperature measuring device for clip for cable conductor |
| CN206891597U (en) * | 2017-07-19 | 2018-01-16 | 央电电力科技（湖南）有限公司 | Transmission line of electricity wire clamp temperature safety early warning system |
| CN107966220A (en) * | 2017-10-26 | 2018-04-27 | 国网冀北电力有限公司张家口供电公司 | A kind of remote monitoring method based on thermometric wire clamp |
-
2018
- 2018-08-06 CN CN201810886674.4A patent/CN109186804A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060265175A1 (en) * | 2005-05-09 | 2006-11-23 | Manuchehr Shimohamadi | Low-cost multi-span conductor temperature measurement system |
| CN102564493A (en) * | 2011-10-28 | 2012-07-11 | 江苏省电力公司连云港供电公司 | Online monitoring system for galloping of overhead power transmission line |
| CN202562629U (en) * | 2012-03-30 | 2012-11-28 | 山西省电力公司太原供电分公司 | High voltage power transmission line strain drainage wire clamp temperature testing system |
| CN105651344A (en) * | 2016-04-06 | 2016-06-08 | 南彦勃 | Cable clamp state detection system and method |
| CN206114132U (en) * | 2016-10-27 | 2017-04-19 | 江苏畅源电气设备有限公司 | A temperature measuring device for clip for cable conductor |
| CN206891597U (en) * | 2017-07-19 | 2018-01-16 | 央电电力科技（湖南）有限公司 | Transmission line of electricity wire clamp temperature safety early warning system |
| CN107966220A (en) * | 2017-10-26 | 2018-04-27 | 国网冀北电力有限公司张家口供电公司 | A kind of remote monitoring method based on thermometric wire clamp |
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| PB01 | Publication | ||
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Application publication date: 20190111 |