CN202166714U - Overhead intelligent fault indicator - Google Patents
Overhead intelligent fault indicator Download PDFInfo
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- CN202166714U CN202166714U CN201120199725XU CN201120199725U CN202166714U CN 202166714 U CN202166714 U CN 202166714U CN 201120199725X U CN201120199725X U CN 201120199725XU CN 201120199725 U CN201120199725 U CN 201120199725U CN 202166714 U CN202166714 U CN 202166714U
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Abstract
The utility model relates to an overhead intelligent fault indicator. The main technological characteristics are as following: a main fault indicator and two auxiliary fault indicators are arranged in parallel in a three-phase circuit and operate individually; each fault indicator comprises a power supply module, a current sensor, a voltage sensor, a signal conditioning circuit, a microcontroller, a clock circuit, a reset circuit and a wireless communication module; the wireless communication module in the main fault indicator includes a GSM communication module for communication with a monitor center and a zigbee communication module for communication between the main and the auxiliary fault indicators; and each wireless communication module in the auxiliary fault indicators includes a zigbee communication module for communication between the main and the auxiliary fault indicators. In the utility model, the design is reasonable, the anti-interference capability of the detection apparatus is raised, the accuracy of the fault detection is guaranteed, the fault search time and cost are reduced, the power supply recovery is accelerated, and the power supply reliability is raised.
Description
Technical field
The utility model belongs to the electric power network field, especially a kind of overhead type intelligent trouble device indicating that is applicable to the rural power grids fault detection system.
Background technology
Feeder line fault detects the Germany that originates from nineteen seventies; Initial its purpose of invention is the approach in order to indicate the power line short-circuit electric current to flow through; Help people to find the trouble spot, it is the basic functions of fault indicator that visible short-circuit current detects.At present; Zero sequence drying method, capacitance current pulse amplitude method, half Mintrop wave detection method, 5 subharmonic methods and signal injection method etc. have mainly been adopted for the electric system ground fault detection device; But these detection methods all have limitation separately; And distribution earth fault has a lot of different types, so the earth fault discrimination is not very high.
Summary of the invention
The purpose of the utility model is to overcome the deficiency of prior art, provide a kind of can be fast, the accurate overhead type intelligent trouble device indicating of detection line fault.
The utility model solves its technical matters and takes following technical scheme to realize:
A kind of overhead type intelligent trouble device indicating; Comprise hang under the three-phase circuit side by side and major error indicator of operation respectively and two from fault detector; Each fault detector connects and composes by power module, current sensor, voltage sensor, signal conditioning circuit, microcontroller, clock circuit, reset circuit and wireless communication module; Power module provides power supply with signal conditioning circuit, microcontroller, wireless communication module for it respectively; Current sensor is connected with signal conditioning circuit with voltage sensor; The output terminal of signal conditioning circuit is connected with microcontroller, and microcontroller is connected with clock circuit, reset circuit, signal conditioning circuit and wireless communication module; Purple honeybee (the Zigbee that communicates between the gsm communication module that wireless communication module comprises and Surveillance center communicates in the major error indicator and the principal and subordinate's fault detector; Zigbee is based on a low-power consumption territory fidonetFido of IEEE802.15.4 standard; Be the wireless communication technology of a kind of short distance, low-power consumption) communication module, the wireless communication module in fault detector comprises the purple honeybee communication module that communicates between principal and subordinate's fault detector.
And; Described power module comprises solar panel, DC/DC module and linear voltage regulator; The output terminal of solar panel is connected with the DC/DC module; The output terminal of DC/DC module is connected with linear voltage regulator, and the 3.3V power supply of the 3.6V power supply of DC/DC module output and linear voltage regulator output is microcontroller, wireless communication module, signal conditioning circuit power supply.
The advantage and the good effect of the utility model are:
The utility model is reasonable in design; Carry out the zero-sequence current detection respectively and comprehensively compare the zero-sequence current information of each phase from fault detector through being installed in one on the three-phase circuit main two, thereby improved the antijamming capability of pick-up unit, guaranteed the accuracy of fault detect by the major error indicator; Simultaneously can testing result be transferred to Surveillance center through the gsm communication net; Reduce trouble shooting time and searched cost, accelerated service restoration, improved power supply reliability.
Description of drawings
Fig. 1 is the circuit block diagram of the utility model;
Fig. 2 is the circuit block diagram of power module;
Fig. 3 is the circuit diagram that microcontroller is connected with the gsm communication module.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is done further detailed description:
A kind of overhead type intelligent trouble device indicating comprises a major error indicator and two from fault detector, and three fault detectors hang over operation respectively under the A, B, C three-phase of same circuit respectively side by side.Each fault detector connects and composes by power module, current sensor, voltage sensor, signal conditioning circuit, microcontroller, clock circuit, reset circuit and wireless communication module; Power module provides power supply with signal conditioning circuit, microcontroller, wireless communication module for it respectively; Current sensor is connected with signal conditioning circuit with voltage sensor and is used to detect the electric current and the voltage of three-phase circuit and be input to signal conditioning circuit; Signal conditioning circuit is input in the microcontroller after the electric current of receiving and voltage signal are amplified arrangement; Microcontroller is connected with clock circuit, reset circuit, signal conditioning circuit and wireless communication module; Microcontroller through the I/O interface be connected with signal conditioning circuit after obtaining nursing one's health electric current and voltage signal and carry out analyzing and processing, can also carry out radio communication through wireless communication module and other equipment.Wireless communication module comprises gsm communication module and purple honeybee communication module in the major error indicator; The gsm communication module is carried out radio communication function through gsm communication net and Surveillance center, and purple honeybee communication module has that the short-distance wireless communication function is used on the same group the major error indicator and from the communication between the fault detector; Wireless communication module is only comprising purple honeybee communication module in fault detector, from fault detector electric current and the voltage signal gathered are transferred in the major error indicator through purple honeybee communication module.Because each alternate principal and subordinate's fault detector can mutual communication on the same group, therefore, the major error indicator can comprehensively compare the failure message of each phase, thereby improves the antijamming capability of indicator and indicate accuracy.
Power module in the fault detector; As shown in Figure 2; Comprise solar panel, DC/DC module and linear voltage regulator; The output terminal of solar panel is connected with the DC/DC module, and the output terminal of DC/DC module is connected with linear voltage regulator, and the 3.3V power supply of the 3.6V power supply of DC/DC module output and linear voltage regulator output is microcontroller, wireless communication module, signal conditioning circuit power supply.In the present embodiment; Solar panel adopts the solar photovoltaic battery component of circulating type layout as energy source; Guarantee no matter fault detector can both receive the irradiation of sunlight in any direction and realize the energy filling; Photovoltaic module can adopt high-level efficiency monocrystalline silicon or polysilicon photovoltaic cell, high transmission rate tempered glass, Tedlar, anticorrosive aluminium to close materials such as polygon frame; Use advanced vacuum lamination process and pulse welding technology to make energy-storage battery and adopt self-discharge rate very little, lithium-thionyl battery that can standing storage; The DC/DC module adopts the higher switching power source chip of conversion efficiency, is equipped with the maximum service efficiency that the house dog program guarantees electric energy.
The purple honeybee communication module that communicates between the gsm communication module that wireless communication module comprises and Surveillance center communicates in the major error indicator and the principal and subordinate's fault detector.As shown in Figure 3; The gsm communication module is connected with the communication interface of microcontroller through communication interface; And a SIM is installed in the slot that on module, is provided with is used for being connected with the gsm communication net and realizes and the communication function of Surveillance center, send failure message on the same group major error indicator from fault detector through zifeng modular.The major error indicator can send to Surveillance center with testing result through gsm module, thereby makes every group of shared SIM of fault detector, thereby reduces the wasting of resources.
Microcontroller in the major error indicator is realized the analyzing and processing function to the three-phase zero-sequence current information of collecting.Because the zero-sequence current collection is online detection; Difficult point is exactly that load current is bigger; Generally can reach ampere up to a hundred, and that zero-sequence current is compared with load current is less, is had only several amperes to tens amperes; Therefore, how to guarantee that the precision that zero-sequence current detects is exactly the matter of utmost importance that zero sequence current mutual inductor need solve.Generally speaking, precision is that 5 ‰ current transformer can satisfy the detection requirement.Zero sequence current mutual inductor in principal and subordinate's fault detector obtains the instantaneous value of three-phase current respectively; And be pooled in the major error indicator through short-distance wireless communication; By the instantaneous value stack synthetic zero-sequence current of the microcontroller in the major error indicator with three-phase current; Realization is to the detection of zero-sequence current, and testing result is sent to Surveillance center automatically.
It is emphasized that; The described embodiment of the utility model is illustrative; Rather than it is determinate; Therefore the utility model is not limited to the embodiment described in the embodiment, every by those skilled in the art according to other embodiments that the technical scheme of the utility model draws, belong to the scope of the utility model protection equally.
Claims (2)
1. overhead type intelligent trouble device indicating; It is characterized in that: comprise hang under the three-phase circuit side by side and major error indicator of operation respectively and two from fault detector; Each fault detector connects and composes by power module, current sensor, voltage sensor, signal conditioning circuit, microcontroller, clock circuit, reset circuit and wireless communication module; Power module provides power supply with signal conditioning circuit, microcontroller, wireless communication module for it respectively; Current sensor is connected with signal conditioning circuit with voltage sensor; The output terminal of signal conditioning circuit is connected with microcontroller, and microcontroller is connected with clock circuit, reset circuit, signal conditioning circuit and wireless communication module; The purple honeybee communication module that communicates between the gsm communication module that wireless communication module comprises and Surveillance center communicates in the major error indicator and the principal and subordinate's fault detector, the wireless communication module in fault detector comprises the purple honeybee communication module that communicates between principal and subordinate's fault detector.
2. a kind of overhead type intelligent trouble device indicating according to claim 1; It is characterized in that: described power module comprises solar panel, DC/DC module and linear voltage regulator; The output terminal of solar panel is connected with the DC/DC module; The output terminal of DC/DC module is connected with linear voltage regulator, and the 3.3V power supply of the 3.6V power supply of DC/DC module output and linear voltage regulator output is microcontroller, wireless communication module, signal conditioning circuit power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120199725XU CN202166714U (en) | 2011-06-14 | 2011-06-14 | Overhead intelligent fault indicator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120199725XU CN202166714U (en) | 2011-06-14 | 2011-06-14 | Overhead intelligent fault indicator |
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| CN202166714U true CN202166714U (en) | 2012-03-14 |
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| CN201120199725XU Expired - Fee Related CN202166714U (en) | 2011-06-14 | 2011-06-14 | Overhead intelligent fault indicator |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103424666A (en) * | 2013-07-18 | 2013-12-04 | 广东电网公司电力科学研究院 | Overhead line fault indicator with voltage detection function |
| CN105093067A (en) * | 2015-08-24 | 2015-11-25 | 国网天津市电力公司 | Intelligent remote fault indicating system |
| CN105182179A (en) * | 2015-08-24 | 2015-12-23 | 国网天津市电力公司 | Intelligent remote visual fault indication system |
| CN105988064A (en) * | 2015-11-25 | 2016-10-05 | 国网辽宁省电力有限公司锦州供电公司 | Functional meter capable of locating fault point and method used for locating fault point and applied to functional meter |
| CN106291212A (en) * | 2015-05-29 | 2017-01-04 | 梁克标 | A kind of Novel fault indicator |
| CN111240871A (en) * | 2019-12-30 | 2020-06-05 | 潍柴动力股份有限公司 | Engine fault reporting method and device |
| WO2022107138A1 (en) * | 2020-11-17 | 2022-05-27 | Metrycom Communications Ltd. | System and method for detecting ground faults in power distribution grids |
-
2011
- 2011-06-14 CN CN201120199725XU patent/CN202166714U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103424666A (en) * | 2013-07-18 | 2013-12-04 | 广东电网公司电力科学研究院 | Overhead line fault indicator with voltage detection function |
| CN103424666B (en) * | 2013-07-18 | 2016-05-11 | 广东电网公司电力科学研究院 | A kind of fault indicator for overhead lines with voltage detecting function |
| CN106291212A (en) * | 2015-05-29 | 2017-01-04 | 梁克标 | A kind of Novel fault indicator |
| CN105093067A (en) * | 2015-08-24 | 2015-11-25 | 国网天津市电力公司 | Intelligent remote fault indicating system |
| CN105182179A (en) * | 2015-08-24 | 2015-12-23 | 国网天津市电力公司 | Intelligent remote visual fault indication system |
| CN105988064A (en) * | 2015-11-25 | 2016-10-05 | 国网辽宁省电力有限公司锦州供电公司 | Functional meter capable of locating fault point and method used for locating fault point and applied to functional meter |
| CN105988064B (en) * | 2015-11-25 | 2019-02-15 | 国网辽宁省电力有限公司锦州供电公司 | Can fault point menu and its to position of failure point positioning method |
| CN111240871A (en) * | 2019-12-30 | 2020-06-05 | 潍柴动力股份有限公司 | Engine fault reporting method and device |
| WO2022107138A1 (en) * | 2020-11-17 | 2022-05-27 | Metrycom Communications Ltd. | System and method for detecting ground faults in power distribution grids |
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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: TIANJIN ELECTRIC POWER CORP. Effective date: 20130521 Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: TIANJIN ELECTRIC POWER CORP. Effective date: 20130521 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 300010 HEBEI, TIANJIN TO: 100031 XICHENG, BEIJING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20130521 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: Tianjin Electric Power Corp. Address before: 300010 Tianjin city Hebei District Wujing Road No. 39 Patentee before: Tianjin Electric Power Corp. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120314 Termination date: 20190614 |
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| CF01 | Termination of patent right due to non-payment of annual fee |