CN201562025U - Overhead line transmission capacity on-line monitoring device - Google Patents
Overhead line transmission capacity on-line monitoring device Download PDFInfo
- Publication number
- CN201562025U CN201562025U CN 200920284277 CN200920284277U CN201562025U CN 201562025 U CN201562025 U CN 201562025U CN 200920284277 CN200920284277 CN 200920284277 CN 200920284277 U CN200920284277 U CN 200920284277U CN 201562025 U CN201562025 U CN 201562025U
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- temperature collection
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Abstract
The utility model discloses an overhead line transmission capacity on-line monitoring device. The device comprises a three-phase temperature collection circuit, an ambient temperature collection circuit, a three-phase current collection circuit and an ambient humidity collection circuit which are connected with the A/D port of a microprocessor, a display circuit connected with the I/O port of the microprocessor, an interface circuit connected with the serial port of the microprocessor, and a power taking circuit connected with the power supply end of the microprocessor. The open-loop and the closed-loop through-type electromagnetic coils are adopted to take power to obtain the signal of electric energy for power supply, so as to stably supply the working electric energy to the microprocessor and the micro-power LCD display circuit, thereby meeting the increasing need for power. Under the condition of not increasing the investment, the dynamic transmission capacity mode is adopted to achieve the purposes of reducing or delaying the construction of the power transmission line, saving the investment, reducing the transmission line corridor and the occupied farmland and improving the environment.
Description
Technical field
The utility model relates to a kind of high-tension overhead line transmission capacity on-Line Monitor Device, can improve the transmittability of existing transmission line of electricity to greatest extent, satisfies the continuous growth of electricity needs.
Background technology
At present, power grid construction and ability to transmit electricity are subjected to many effects limit such as soil, fund and environmental protection pressure, the transmission facility utilization factor is lower, the unit line transmission line capability is not high, therefore, be necessary to make full use of original circuit corridor and operational outfit, improve the transmittability of existing transmission line of electricity to greatest extent, to satisfy constantly increasing of electricity needs.Circuit transmission capacity limit value is based on bad weather condition and line-to-ground safe distance and lead maximum operation temperature draw in order to keep, but during actual the use, lead actual motion temperature does not reach maximum allowable temperature in most cases.
Carry out online detection and mainly contain two purposes: the one, for real-time Monitoring Line environmental baseline and operational factor, analysis circuit safe operation state is for the transmission line of electricity safe operation provides a brand-new monitoring means; The 2nd, according to circuit real time environment parameter and running status, in the system failure, maintenance or implement circuit dynamic compatibilization operation in case of necessity, effectively improve the circuit transmission capacity.
Present overhead transmission line on-Line Monitor Device is made up of lead temperature measuring equipment, weather monitoring device and backstage main website.Parameters such as monitoring conductor temperature, load current and environment temperature, intensity of sunshine, wind speed, wind direction, humidity are convenient to real-time analysis line status and Real-time and Dynamic increase-volume operation in real time.Near tower bar position the lead temperature measuring equipment is installed in transmission line of electricity monitoring or increase-volume key point, top of building is installed small-sized weather station in circuit terminal pole tower end transformer station, with portion of measurement bay ceases to be busy road bureau meteorologic parameter, but this overhead transmission line on-Line Monitor Device defective is: complex structure, need external power supply, install very inconvenient.
Summary of the invention
Technical problem to be solved in the utility model provides and does not a kind ofly need external power supply, improves the overhead transmission line transmission capacity on-Line Monitor Device of the transmittability of existing transmission line of electricity to greatest extent.
The technical solution adopted in the utility model is: A phase temperature collection circuit, B phase temperature collection circuit, C phase temperature collection circuit, temperature collection circuit, A phase current Acquisition Circuit, B phase current Acquisition Circuit, C phase current Acquisition Circuit and ambient humidity Acquisition Circuit are connected with the A/D mouth of microprocessor respectively; Display circuit is connected with the I/O mouth of microprocessor; Interface circuit is connected with the serial ports of microprocessor; Power-supply circuit is connected with the power end of microprocessor.
The beneficial effects of the utility model are:
1, utilize electromagnetic field, employing open loop snap ring punching solenoid power taking acquisition power supply power supply electric power signal can be microprocessor and little power consumption LCD display circuit provides stable work energy, to satisfy constantly increasing of electricity needs.
2, a temperature sensor is imbedded insulator inside, and there is enough insulation to isolate with high-pressure side, realized the online detection of heating temp of overhead transmission line, this measuring method is safe and reliable, measurement data is accurate, be applicable to that the new equipment installation also can be applied to old scrap build, utilization radio-frequency communication technology to sensor acquisition to signal carry out wireless transmission, the real time temperature data can be delivered to the background monitoring center, the another temperature sensor is placed near the cable, be used to measure the cable ambient temperature,, can judge overhead transmission line running temperature height exactly by the temperature difference comparison of the temperature in environment temperature and the insulation course.
3, do not increasing under the more investment situation, adopting dynamic transport capacity mode, reaching the transmission line of electricity of building less or postpone, economize on the use of funds, reduce the circuit corridor and occupy cultivated land, improve the purpose of environment.
Description of drawings
Fig. 1 is the utility model structure connection diagram.
Fig. 2 is the structure connection layout of power-supply circuit 10 among Fig. 1.
Embodiment
Shown in Figure 1, the utility model comprises A phase temperature collection circuit 1, B phase temperature collection circuit 2, C phase temperature collection circuit 3, temperature collection circuit 4, A phase current Acquisition Circuit 5, B phase current Acquisition Circuit 6, C phase current Acquisition Circuit 7, microprocessor 8, ambient humidity Acquisition Circuit 9, power-supply circuit 10, interface circuit 11 and display circuit 12 compositions.Wherein, A phase temperature collection circuit 1, B phase temperature collection circuit 2, C phase temperature collection circuit 3, temperature collection circuit 4, A phase current Acquisition Circuit 5, B phase current Acquisition Circuit 6, C phase current Acquisition Circuit 7 and ambient humidity Acquisition Circuit 9 are connected with the A/D mouth of microprocessor 8 respectively; Display circuit 12 is connected with the I/O mouth of microprocessor 8; Interface circuit 11 is connected with the serial ports of microprocessor 8; Power-supply circuit 10 is connected with the power end of microprocessor 8, for it provides power supply.A phase temperature collection circuit 1, B phase temperature collection circuit 2, C phase temperature collection circuit 3 all adopt thermistor collecting temperature signal, also can adopt digital temperature sensor AD590, LM92 collecting temperature signal.Microprocessor 8 adopts little power consumption PIC, NSP430,51 or single-chip microcomputer such as AVR series, and display circuit 12 adopts low-power consumption LCD to show.A phase current Acquisition Circuit 5, B phase current Acquisition Circuit 6, C phase current Acquisition Circuit 7 all adopt two semi-ring core type punching current transformers, realize current acquisition, and are convenient to install.
As shown in Figure 2, the power-supply circuit among Fig. 1 10 comprises power taking 10-1 unshakable in one's determination, power taking coil 10-2, rectification circuit 10-3, filtering circuit 10-4, mu balanced circuit 10-5 and tank circuit 10-6.Wherein, power taking coil 10-2 is on power taking 10-1 unshakable in one's determination, and power taking 10-1 unshakable in one's determination adopts two semi-ring iron cores of being convenient to install, and power taking 10-1 unshakable in one's determination passes the measurement lead, and power taking coil 10-2 connects the input end of rectification circuit 10-3; The output terminal of rectification circuit 10-3 is connected with the input end of filtering circuit 10-4; The output terminal of filtering circuit 10-4 is connected with the input end of mu balanced circuit 10-5; The output terminal of mu balanced circuit 10-5 is connected with the input end of tank circuit 10-6; The output terminal of tank circuit 10-6 is connected with the power end of microprocessor 8, and tank circuit 10-6 adopts super capacitor energy-storage,
The utility model in use, a temperature sensor can be imbedded insulator inside, and there is enough insulation to isolate with high-pressure side, by experiment repeatedly, draw in insulator inside and imbed temperature and the environment temperature difference compensation basis that temperature sensor is measured the high-tension line copper conductor indirectly, realized the online detection of heating temp of overhead transmission line, this measurement is safe and reliable, measurement data is accurate, is applicable to that new equipment is installed also can to use and old scrap build.Utilization radio-frequency communication technology to sensor acquisition to signal carry out wireless transmission, the real time temperature data can be delivered to the background monitoring center.The another temperature sensor is placed near the cable, is used to measure the cable end ambient temperature, the temperature difference by the temperature in environment temperature and the insulation course relatively can be judged overhead transmission line running temperature height exactly.
Claims (3)
1. overhead transmission line transmission capacity on-Line Monitor Device, comprise temperature collection circuit and microprocessor, it is characterized in that: A phase temperature collection circuit (1), B phase temperature collection circuit (2), C phase temperature collection circuit (3), temperature collection circuit (4), A phase current Acquisition Circuit (5), B phase current Acquisition Circuit (6), C phase current Acquisition Circuit (7) and ambient humidity Acquisition Circuit (9) are connected with the A/D mouth of microprocessor (8) respectively; Display circuit (12) is connected with the I/O mouth of microprocessor (8); Interface circuit (11) is connected with the serial ports of microprocessor (8); Power-supply circuit (10) is connected with the power end of microprocessor (8).
2. overhead transmission line transmission capacity on-Line Monitor Device as claimed in claim 1, it is characterized in that: described power-supply circuit (10) comprises power taking iron core (10-1), power taking coil (10-2), rectification circuit (10-3), filtering circuit (10-4), mu balanced circuit (10-5) and tank circuit (10-6), power taking coil (10-2) is around on the power taking iron core (10-1), and power taking coil (10-2) connects the input end of rectification circuit (10-3); The output terminal of rectification circuit (10-3) is connected with the input end of filtering circuit (10-4); The output terminal of filtering circuit (10-4) is connected with the input end of mu balanced circuit (10-5); The output terminal of mu balanced circuit (10-5) is connected with the input end of tank circuit (10-6); The output terminal of tank circuit (10-6) is connected with the power end of microprocessor (8).
3. overhead transmission line transmission capacity on-Line Monitor Device as claimed in claim 2 is characterized in that: described power taking iron core (10-1) is two semi-ring iron cores.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920284277 CN201562025U (en) | 2009-12-04 | 2009-12-04 | Overhead line transmission capacity on-line monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920284277 CN201562025U (en) | 2009-12-04 | 2009-12-04 | Overhead line transmission capacity on-line monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201562025U true CN201562025U (en) | 2010-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920284277 Expired - Fee Related CN201562025U (en) | 2009-12-04 | 2009-12-04 | Overhead line transmission capacity on-line monitoring device |
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| CN (1) | CN201562025U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102565597A (en) * | 2012-02-14 | 2012-07-11 | 广东易事特电源股份有限公司 | Dynamic power transmission line capacity estimation method applying synchronized phasor technology |
| CN105891662A (en) * | 2016-04-01 | 2016-08-24 | 苏州威拓科技有限公司 | Power line detection system based on three-network fusion |
| CN106990310A (en) * | 2017-05-03 | 2017-07-28 | 中国南方电网有限责任公司电网技术研究中心 | Overhead transmission conductor capacity characteristic monitoring system, testing method and device |
-
2009
- 2009-12-04 CN CN 200920284277 patent/CN201562025U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102565597A (en) * | 2012-02-14 | 2012-07-11 | 广东易事特电源股份有限公司 | Dynamic power transmission line capacity estimation method applying synchronized phasor technology |
| WO2013120352A1 (en) * | 2012-02-14 | 2013-08-22 | 广东易事特电源股份有限公司 | Method for estimating dynamic power transmission line capacity by using synchronized phasor technology |
| CN102565597B (en) * | 2012-02-14 | 2015-01-07 | 广东易事特电源股份有限公司 | Dynamic power transmission line capacity estimation method applying synchronized phasor technology |
| CN105891662A (en) * | 2016-04-01 | 2016-08-24 | 苏州威拓科技有限公司 | Power line detection system based on three-network fusion |
| CN106990310A (en) * | 2017-05-03 | 2017-07-28 | 中国南方电网有限责任公司电网技术研究中心 | Overhead transmission conductor capacity characteristic monitoring system, testing method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU DONGNENG ELECTRIC POWER SCI-TECH CO., LTD. Free format text: FORMER OWNER: CHANGZHOU CAMPUS, HOHAI UNIVERSITY Effective date: 20120815 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 213022 CHANGZHOU, JIANGSU PROVINCE TO: 224400 YANCHENG, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120815 Address after: 224400, No. 8, development avenue, Funing County Industrial Park, Jiangsu, Yancheng City Patentee after: JIANGSU DONGNENG ELECTRIC POWER TECHNOLOGY Co.,Ltd. Address before: 213022 Jiangsu city of Changzhou province Chang Cheng Road, No. 5 Patentee before: CHANGZHOU CAMPUS OF HOHAI University |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100825 Termination date: 20161204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |