CN204228890U - Multichannel overhead distribution fault and locating device - Google Patents

Multichannel overhead distribution fault and locating device Download PDF

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Publication number
CN204228890U
CN204228890U CN201420757569.8U CN201420757569U CN204228890U CN 204228890 U CN204228890 U CN 204228890U CN 201420757569 U CN201420757569 U CN 201420757569U CN 204228890 U CN204228890 U CN 204228890U
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CN
China
Prior art keywords
module
multichannel
control enclosure
circuit
monitoring processing
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420757569.8U
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Chinese (zh)
Inventor
冯永建
谭更民
李叔男
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SHIJIAZHUANG ZHONGSHI TESTING MACHINE CO Ltd
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SHIJIAZHUANG ZHONGSHI TESTING MACHINE CO Ltd
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Priority to CN201420757569.8U priority Critical patent/CN204228890U/en
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Publication of CN204228890U publication Critical patent/CN204228890U/en
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    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
    • Y04S10/52Outage or fault management, e.g. fault detection or location

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  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Locating Faults (AREA)

Abstract

The utility model relates to electronic monitoring device technical field, be specifically related to multichannel overhead distribution fault and locating device, comprise and be individually fixed in 10kV overhead distribution difference and intersect or three current transformers in branched line multichannel and be arranged on the control enclosure that the solar photovoltaic power on same overhead line poles powers, control enclosure comprises circuit measuring zero phase sequence current module, A/D convertor circuit, malfunction monitoring processing module and wireless GPRS module; The utility model is gathered three-phase current signal respectively by the circuit measuring zero phase sequence current module in control enclosure and is generated zero sequence current signal, malfunction monitoring processing module is connected to through A/D convertor circuit, compare with setting short-circuit current threshold value or single-phase earth fault current threshold value, thus phase fault or singlephase earth fault information can be detected when line fault occurs, send failure message after treatment and place on line number information to remote computer by wireless GPRS module.

Description

Multichannel overhead distribution fault and locating device
Technical field
The utility model relates to electronic monitoring device technical field, is specifically related to multichannel overhead distribution fault and locating device.
Background technology
In power distribution network, be the important step of power distribution network safe operation to the monitoring of overhead transmission line operation conditions.Have in prior art when adopting overhead distribution fault monitoring device can occur line fault and detect phase fault or singlephase earth fault information, but above-mentioned overhead distribution fault monitoring device cannot detect the problem of the many intersections of same overhead line poles or multipoint line fault and location simultaneously.
Utility model content
The purpose of this utility model is to provide a kind of existing overhead distribution malfunction monitoring and locating device of can solving cannot detect that same overhead line poles to intersect or the multichannel overhead distribution fault of problem of multipoint line fault and location and locating device simultaneously.
In order to solve the problem existing for background technology, the utility model is by the following technical solutions: multichannel overhead distribution fault and locating device, comprise and be individually fixed in 10kV overhead distribution difference and intersect or three current transformers in branched line multichannel and be arranged on the control enclosure that the solar photovoltaic power on same overhead line poles powers, described control enclosure comprises circuit measuring zero phase sequence current module, A/D convertor circuit, malfunction monitoring processing module and wireless GPRS module; The secondary output current signal of described three current transformers is by the circuit measuring zero phase sequence current model calling in control cables and described control enclosure, described circuit measuring zero phase sequence current module is connected with described malfunction monitoring processing module by A/D convertor circuit, and described malfunction monitoring processing module is connected with the remote computer outside described control enclosure by wireless GPRS module; Described solar photovoltaic power is connected with described control enclosure and is used for powering to it.
Further, the output terminal of described circuit measuring zero phase sequence current module is connected by the input end of signal cable with described A/D convertor circuit, the output terminal of described A/D convertor circuit is connected by the input end of described signal cable with described malfunction monitoring processing module, and the output terminal of described malfunction monitoring processing module is connected by the input end of communication cable with described wireless GPRS module.
Further, described multichannel can be n*3, and n is here more than or equal to 1.
The utility model has following beneficial effect: multichannel overhead distribution fault described in the utility model and locating device, comprise and be individually fixed in 10kV overhead distribution difference and intersect or three current transformers in branched line multichannel and be arranged on the control enclosure that the solar photovoltaic power on same overhead line poles powers, wherein, described control enclosure comprises circuit measuring zero phase sequence current module, A/D convertor circuit, malfunction monitoring processing module and wireless GPRS module, the utility model adopts said structure, gather multichannel current signal respectively by the circuit measuring zero phase sequence current module in control enclosure and generate zero sequence current signal, then malfunction monitoring processing module is connected to through A/D convertor circuit, compare with setting short-circuit current threshold value or single-phase earth fault current threshold value, thus phase fault or singlephase earth fault information can be detected when line fault occurs, failure message after treatment and place on line number information is sent to remote computer by wireless GPRS module, and then ensured fast processing and the safe operation of electric distribution network overhead wire fault.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to technological means of the present utility model can be better understood, and can be implemented according to the content of instructions, and can become apparent to allow above and other object of the present utility model, feature and advantage, below in conjunction with preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, be briefly described to the accompanying drawing of embodiment below.
Fig. 1 is multichannel overhead distribution fault and the positioning device structure schematic diagram of the utility model preferred embodiment.
Embodiment
With reference to Fig. 1, this embodiment is by the following technical solutions: multichannel overhead distribution fault and locating device, comprise three current transformers 1 be individually fixed in 10kV overhead distribution difference intersection or branched line multichannel, and be arranged on the control enclosure 3 of solar photovoltaic power 2 power supply on same overhead line poles, in the present embodiment, above-mentioned multichannel is at least three-phase circuit, when reality uses, multichannel can be n*3, here n is more than or equal to 1, above-mentioned three current transformers 1 all adopt insulating support 12 to be fixed on 10kV overhead distribution difference intersection or branched line three-phase, wherein, how many large I in control enclosure 3 specifically customizes according to actual monitoring module, described control enclosure 3 comprises circuit measuring zero phase sequence current module 4, A/D convertor circuit 5, malfunction monitoring processing module 6 and wireless GPRS module 7, the secondary output current signal of described three current transformers 1 is connected with the circuit measuring zero phase sequence current module 4 in described control enclosure 3 by control cables 8, described circuit measuring zero phase sequence current module 4 is connected with described malfunction monitoring processing module 6 by A/D convertor circuit 5, and described malfunction monitoring processing module 6 is connected with the remote computer 9 outside described control enclosure 3 by wireless GPRS module 7, in the present embodiment, first gather three-phase current signal respectively by the circuit measuring zero phase sequence current module 4 in control enclosure 3 and generate zero sequence current signal, current values is converted to through A/D convertor circuit 5, then compare with the short-circuit current threshold value that sets in malfunction monitoring processing module 6 or single-phase earth fault current threshold value, thus phase fault or singlephase earth fault information can be detected when line fault occurs, send failure message after treatment and place on line number information to remote computer 9 by wireless GPRS module 7, in addition, the processor of above-mentioned malfunction monitoring processing module 6 adopts ST company low-power consumption 32 arm processor STM32F107CV, the technical grade GPRS module that wireless GPRS module 7 adopts French WAVECOM company to produce, described solar photovoltaic power 2 is connected with described control enclosure 3 and is used for powering to it, above-mentioned solar photovoltaic power 2 is powered for giving each communication module in control enclosure 3, wherein, solar photovoltaic power 2 utilizes solar panel that solar energy is converted into electric energy, for powering to each communication module above-mentioned, have reduce costs, the advantage such as energy-conserving and environment-protective.
With reference to Fig. 1, the output terminal of described circuit measuring zero phase sequence current module 4 is connected with the input end of described A/D convertor circuit 5 by signal cable 10, the output terminal of described A/D convertor circuit 5 is connected by the input end of described signal cable 10 with described malfunction monitoring processing module 6, the output terminal of described malfunction monitoring processing module 6 is connected with the input end of described wireless GPRS module 7 by communication cable 11, in the present embodiment, above-mentioned signal cable 10 and communication cable 11 all play connection between modules and information transmission effect, and signal cable 10 and communication cable 11 are installed in control enclosure 3, each communication module above-mentioned is convenient to concentrate in together like this, power with solar photovoltaic power 2.
When using the utility model, on the overhead line poles of power distribution network main line and branched line joint portion, the insulating support 12 of three current transformers 1 is arranged on cross-arm, the interstitial hole of three current transformers 1 will be each passed through with three wire jumpers between main line and branch line, two ends wire clamp connects, fix on online bar by control enclosure 3 anchor ear, three control cables 8 put down by bar cloth along the line are connected to circuit measuring zero phase sequence current module 4 from control enclosure 3 bottom.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, other amendments that those of ordinary skill in the art make the technical solution of the utility model or equivalently to replace, only otherwise depart from the spirit and scope of technical solutions of the utility model, all should be encompassed in the middle of right of the present utility model.

Claims (3)

1. multichannel overhead distribution fault and locating device, comprise and be individually fixed in 10kV overhead distribution difference and intersect or three current transformers (1) in branched line multichannel and be arranged on the control enclosure (3) that the solar photovoltaic power (2) on same overhead line poles powers, it is characterized in that, described control enclosure (3) comprises circuit measuring zero phase sequence current module (4), A/D convertor circuit (5), malfunction monitoring processing module (6) and wireless GPRS module (7); The secondary output current signal of described three current transformers (1) is connected with the circuit measuring zero phase sequence current module (4) in described control enclosure (3) by control cables (8), described circuit measuring zero phase sequence current module (4) is connected with described malfunction monitoring processing module (6) by A/D convertor circuit (5), and described malfunction monitoring processing module (6) is connected with described control enclosure (3) remote computer outward (9) by wireless GPRS module (7); Described solar photovoltaic power (2) is connected with described control enclosure (3) and is used for powering to it.
2. multichannel overhead distribution fault according to claim 1 and locating device, it is characterized in that, the output terminal of described circuit measuring zero phase sequence current module (4) is connected with the input end of described A/D convertor circuit (5) by signal cable (10), the output terminal of described A/D convertor circuit (5) is connected by the input end of described signal cable (10) with described malfunction monitoring processing module (6), the output terminal of described malfunction monitoring processing module (6) is connected with the input end of described wireless GPRS module (7) by communication cable (11).
3. multichannel overhead distribution fault according to claim 1 and locating device, is characterized in that, described multichannel can be n*3, and n is here more than or equal to 1.
CN201420757569.8U 2014-12-05 2014-12-05 Multichannel overhead distribution fault and locating device Expired - Fee Related CN204228890U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420757569.8U CN204228890U (en) 2014-12-05 2014-12-05 Multichannel overhead distribution fault and locating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420757569.8U CN204228890U (en) 2014-12-05 2014-12-05 Multichannel overhead distribution fault and locating device

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CN204228890U true CN204228890U (en) 2015-03-25

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106707011A (en) * 2017-01-11 2017-05-24 长沙群瑞电子科技有限公司 Power grid bus overcurrent detection method and system
CN112462200A (en) * 2020-12-02 2021-03-09 国网山东省电力公司淄博供电公司 Method for judging ground fault of three-phase single-core power distribution network loop
CN113109733A (en) * 2021-03-23 2021-07-13 兰州资源环境职业技术学院 Overhead cable short circuit grounding fault detection system based on wireless sensor network

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106707011A (en) * 2017-01-11 2017-05-24 长沙群瑞电子科技有限公司 Power grid bus overcurrent detection method and system
CN112462200A (en) * 2020-12-02 2021-03-09 国网山东省电力公司淄博供电公司 Method for judging ground fault of three-phase single-core power distribution network loop
CN113109733A (en) * 2021-03-23 2021-07-13 兰州资源环境职业技术学院 Overhead cable short circuit grounding fault detection system based on wireless sensor network
CN113109733B (en) * 2021-03-23 2023-12-15 兰州资源环境职业技术学院 Overhead cable short-circuit ground fault detection system based on wireless sensor network

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150325

Termination date: 20161205