CN203444064U - T-connection high voltage power transmission line fault current acquisition and transmission device - Google Patents
T-connection high voltage power transmission line fault current acquisition and transmission device Download PDFInfo
- Publication number
- CN203444064U CN203444064U CN201320553881.0U CN201320553881U CN203444064U CN 203444064 U CN203444064 U CN 203444064U CN 201320553881 U CN201320553881 U CN 201320553881U CN 203444064 U CN203444064 U CN 203444064U
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- transmission line
- power transmission
- data processing
- line
- fault current
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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Abstract
The utility model provides a T-connection high voltage power transmission line fault current acquisition and transmission device which is composed of a data processing and communication main device, an externally-connected sensor and a sensor connecting wire. The data processing and communication main device is installed on a high voltage power transmission main line with a larger load current generally. The externally-connected sensor is installed on a branch line to be monitored. The main device and the externally-connected sensor are connected via the sensor connecting wire. Under the condition that branch line current of the T-connection high voltage power transmission line is quite small, the fault current acquisition and transmission device can still work reliably via an induction electrification mode.
Description
Technical field
The utility model relates to power technology field, particularly relates to the fault current detection device that T connects ultra-high-tension power transmission line.
Background technology
When T link is carried out to malfunction monitoring, the power frequency and the high-frequency signal that how to gather the current traveling wave on T link branch line are one of key issues, because the line current of T link branch line is generally less, the power taking that cannot be coupled on T link branch line of normal power transmission line intelligent monitoring terminal, causes transmission line malfunction monitoring system cannot obtain normally for a long time the shape information of T link branch line.Therefore, develop the transmission line malfunction monitoring terminal that can obtain T link branch line waveform, be applied to the malfunction monitoring of T link, there is important practical value.
The maximum mode of application is the malfunction monitoring that operational failure indicator is realized T link at present.This fault detector is merely able to be installed in the following circuit of 35kV, and it is also poor to the degree of accuracy of localization of fault; Another kind of mode is the power transmission line intelligent monitoring terminal that adopts solar powered mode, but this terminal is easy to be subject to the impact of weather, and has the shortcomings such as conversion efficiency is not high, the life-span is short, maintenance period is short.
Summary of the invention
The fault occurring in order to monitor and accurately locate T link branch line, in view of the shortcomings of the fault detector of current use and the existence of the power transmission line intelligent monitoring terminal of solar powered mode, the utility model provides a kind of transmission line malfunction monitoring terminal with external sensor of the T of being applicable to link.By using external Rogowski coil to extract power frequency and the high-frequency signal of the current traveling wave on T link branch line, send in the data processing and communication main equipment being arranged on main line, data processing and communication main equipment are by the induction electric energy that power taking unit provides equipment normally to move to need that is coupled.
The power transmission line intelligent fault monitoring system with external sensor that the utility model provides is mainly comprised of data processing and communication main equipment, external sensor, sensor wiring three parts, data processing is connected with sensor wiring with communication main equipment, and sensor wiring is connected with external sensor.Wherein data processing and communication main equipment are arranged on T and connect on the main line that ultra-high-tension power transmission line load current is larger, and external sensor is arranged on T to be monitored and connects on ultra-high-tension power transmission line branch line.First utilize the external sensor being arranged on T link branch line to obtain power frequency and the high-frequency signal of the current traveling wave on T link branch line.External sensor consists of Rogowski coil, can the in the situation that of failure line line structure not, extract accurately and reduce the waveform of current signal in circuit.Then use sensor wiring that the signal measuring is sent in data processing and communication main equipment and is processed, between sensor wiring and data processing and communication main equipment, need to prevent damage equipment in dust storm and rainwater access arrangement with water joint, and with aluminium armor tape and larynx hoop, sensor wiring is fixed on main line and branch line.Final data is processed with communication main equipment and is arranged on the main line of T link, and data processing and the use of communication main equipment, with the coil unshakable in one's determination power taking that is coupled on main line, gather and upload the fault waveform of T link branch line.
The beneficial effects of the utility model are, when can use the power taking that is coupled on the main line of ribbon core coil large load current in T link, with the power frequency and the high-frequency signal that are arranged on external sensor on branch line and obtain the current traveling wave on T link branch line.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model is applied to the transmission line malfunction monitoring terminal embodiment with external sensor of T link.
Wherein, 1 external sensor for Rogowski formation, 2 is sensor wiring, and 3 is data processing and communication main equipment, and 4 is T connection electric transmission line main line, and 5 is T connection electric transmission line branch line.
Embodiment
As shown in Figure 1, transmission line malfunction monitoring terminal with external sensor comprises that one is arranged on the external sensor on T link branch line and is arranged on data processing and the communication main equipment on T link main line, use sensor connecting line that two equipment are connected, sensor consists of Rogowski coil.Rogowski coil is a kind of hollow toroid winding, can directly be enclosed within on measured conductor and measure alternating current.Installation of sensors, on T link branch line, can directly be measured power frequency and the high-frequency signal of the current traveling wave on T link branch line.When T link branch line breaks down, the fault current that T link branch line measures presents the current characteristics of normal short trouble.When the main line of T link breaks down, due to main line short circuit, T link branch line loses power supply, and therefore a line current presents the current characteristics while having a power failure, and reaches the differentiation of fault section, thereby utilize fault traveling wave accurately to locate fault with this.
Data processing and communication main equipment are comprised of electricity getting system, waveform processing system and GPRS communication system.Data processing and communication main equipment are arranged on the main line of T link, with the induction coupling power taking unit of ribbon core, are coupled out on the line the operation that electric current provides equipment.Because size of current and line load that coil coupling goes out are current related, if load current is too small, induction power taking element coupling electric current is out too little and do not reach the requirement of equipment operation, and the load current of a lot of T link branch lines is not enough to support our data processing and the operation of communication main equipment, now need data processing and communication main equipment to be arranged on the main line that T takes back road, assurance system is normally moved.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (4)
1. a T connects the collection of ultra-high-tension power transmission line fault current and transmitting device, comprise data processing and communication main equipment, external sensor, sensor wiring, it is characterized in that: described data processing is connected with sensor wiring with communication main equipment, and described sensor wiring is connected with external sensor.
2. a kind of T according to claim 1 connects the collection of ultra-high-tension power transmission line fault current and transmitting device, it is characterized in that: described data processing and communication main equipment are arranged on T and connect on the main line that ultra-high-tension power transmission line load current is larger, and described external sensor is arranged on T to be monitored and connects on ultra-high-tension power transmission line branch line.
3. a kind of T according to claim 1 connects the collection of ultra-high-tension power transmission line fault current and transmitting device, it is characterized in that: described data processing and communication main equipment provide electric energy by transmission line of electricity induction coupling way to take power.
4. a kind of T according to claim 1 connects the collection of ultra-high-tension power transmission line fault current and transmitting device, it is characterized in that: described external sensor is used Rogowski coil to measure power frequency and the high-frequency signal of the current traveling wave on T link branch line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320553881.0U CN203444064U (en) | 2013-08-30 | 2013-08-30 | T-connection high voltage power transmission line fault current acquisition and transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320553881.0U CN203444064U (en) | 2013-08-30 | 2013-08-30 | T-connection high voltage power transmission line fault current acquisition and transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203444064U true CN203444064U (en) | 2014-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320553881.0U Expired - Lifetime CN203444064U (en) | 2013-08-30 | 2013-08-30 | T-connection high voltage power transmission line fault current acquisition and transmission device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203444064U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105319479A (en) * | 2014-05-29 | 2016-02-10 | 国网山西省电力公司电力科学研究院 | Transmission line double-terminal fault ranging system |
-
2013
- 2013-08-30 CN CN201320553881.0U patent/CN203444064U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105319479A (en) * | 2014-05-29 | 2016-02-10 | 国网山西省电力公司电力科学研究院 | Transmission line double-terminal fault ranging system |
| CN105319479B (en) * | 2014-05-29 | 2018-08-10 | 国网山西省电力公司电力科学研究院 | Two ends of electric transmission line fault localization system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Qing Inventor after: Hu Bin Inventor after: Huang Song Inventor after: Chen Qinzhu Inventor after: Yao Dong Inventor before: Wu Qing Inventor before: Hu Bin Inventor before: Huang Song Inventor before: Chen Qinzhu Inventor before: Yao Dong Inventor before: Qian Guanjun Inventor before: Yu Ganghua Inventor before: Zhang Guoqing |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Longhua District of Hainan city in Haikou province 570311 Hai posterior No. 23 Co-patentee after: WUHAN SUNSHINE POWER SCIENCE & TECHNOLOGY Co.,Ltd. Patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF HAINAN POWER GRID Co.,Ltd. Address before: 570203 No. 34, Fu Hai Road, Haikou, Hainan Co-patentee before: WUHAN SUNSHINE POWER SCIENCE & TECHNOLOGY Co.,Ltd. Patentee before: Hainan Power Technology Research Institute |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180222 Address after: Longhua District of Hainan city in Haikou province 570311 Hai posterior No. 23 Patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF HAINAN POWER GRID Co.,Ltd. Address before: Longhua District of Hainan city in Haikou province 570311 Hai posterior No. 23 Co-patentee before: WUHAN SUNSHINE POWER SCIENCE & TECHNOLOGY Co.,Ltd. Patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF HAINAN POWER GRID Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140219 |