CN203674702U - Electric power distribution line short circuit fault isolation system - Google Patents
Electric power distribution line short circuit fault isolation system Download PDFInfo
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- CN203674702U CN203674702U CN201320605024.0U CN201320605024U CN203674702U CN 203674702 U CN203674702 U CN 203674702U CN 201320605024 U CN201320605024 U CN 201320605024U CN 203674702 U CN203674702 U CN 203674702U
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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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
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
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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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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Abstract
An embodiment of the application discloses an electric power distribution line short circuit fault isolation system comprising fault probes, data transponders, a GSM/GPRS center station, a monitoring main station and an intelligent switch. The fault probes are installed on an electric power distribution line and are triggered to send address information and movement information to the data transponders when a short circuit fault occurs on the electric power distribution line, the data transponders are connected with the fault probes, and the GSM/GPRS center station is connected to the data transponders. The data transponders are used for sending the address information and the movement information of the fault probes to the GSM/GPRS center station; the GSM/GPRS center station is used for subjecting the received information to demodulating, decoding and data processing operation and sending a processing result to the monitoring main station; the monitoring main station is used for generating a disconnection instruction according to the processing result, and the intelligent switch is arranged at the two ends of the line where the fault probes are installed and is used for disconnecting a faulty line according to the disconnection instruction. The electric power distribution line short circuit fault isolation system is characterized by improved short circuit fault isolation efficiency and improved automation level.
Description
Technical field
The application relates to the distribution system technical field of electric power system, particularly a kind of overhead transmission line fault isolation system.
Background technology
Conventionally, electric power system is divided into generating, the large composition system of transmission and disttrbution three, and distribution system wherein refers to the electric power networks system that exports to this section of user terminal in electric power system from step-down distribution substation (High Voltage Distribution Substations).Distribution system comprises the overhead transmission line that plays connection function between multiple controller switching equipment (or element) and controller switching equipment.Because distribution system is as the direct intended for end consumers of last link of electric power system, it whether improve direct relation and users' electricity consumption reliability and power quality.But distribution system branch line is many and complicated, because short trouble often easily appears in various factors.In order to reduce or avoid the generation of short trouble, conventionally can switch-segment or circuit breaker be set on backbone, in the time being short-circuited fault, corresponding circuit breaker will trip, and by the switch-segment on backbone, faulty section be kept apart.But, in the time of short trouble, conventionally only there is outlet breaker to trip, the switch-segment arranging on backbone also only can be isolated into backbone limited several sections, navigate to concrete abort situation and this concrete abort situation is isolated toward contact and need be expended a large amount of human and material resources and time, the mode of combination is searched at this equipment component and artificial scene, and automatization level is not high, and short trouble efficiency of isolation is lower.
Utility model content
For solving the problems of the technologies described above, the embodiment of the present application provides a kind of distribution line short trouble shielding system, to improve the efficiency of isolation of short trouble, improves automatization level.
The distribution line short trouble shielding system that the embodiment of the present application provides comprises: at least two intelligent switchs, at least one fault probe, headend, GSM/GPRS central station and master stations, wherein:
Described fault probe is installed on distribution line, and when the distribution line of installing at fault probe is short-circuited fault, fault probe will be triggered to headend sending action information;
Described headend is connected with fault probe, for receiving after the action message of fault probe, sends action message and the address information of fault probe to GSM/GPRS central station;
Described GSM/GPRS central station is connected with described transponder, for receiving action message and the address information of fault probe, and action message and address information is carried out to demodulation, decoding and data processing, and result is sent to master station;
Described master station is connected with described GSM/GPRS central station, for show the geographical location information of short circuit trouble point according to the result of GSM/GPRS central station;
Described intelligent switch is positioned at the two ends of the circuit that fault probe is installed, for receiving the connection that disconnects installation fault probe after open command according to this open command.
Preferably, in described system applies, in neutral point not when directly grounded distribution system, described system also comprises the asymmetric current source being installed on distribution line, for input in the time that short trouble occurs for the signal of failure point detecting.
Further preferably, described asymmetric current source comprises the multiple vacuum switches that are connected respectively with each circuitry phase of distribution line, and kenetron, current-limiting resistance and the controller of opening a sluice gate/closing a floodgate for controlling vacuum switch, wherein: after multiple vacuum switch parallel connections, connect with kenetron, high-voltage diode is connected with current-limiting resistance.
Preferably, described headend is connected with fault probe by short range wireless transmission system, described GSM/GPRS central station is connected with headend by GSM transmission system, and described master station is connected with GSM/GPRS central station by Serial Port Information transmission means.
Preferably, a headend is connected with maximum nine faults probes, and described headend is enclosed in the seal box of Merlon, utilizes card wire structure to be stuck on distribution line.
The embodiment of the present application is by the system of intelligent switch, fault probe, headend, GSM/GPRS central station and master station composition, by fault probe detection to failure condition be transported to master station, generate open command by master station, then send to intelligent switch, by intelligent switch according to the connection of this open command open failure probe place circuit, thereby play the effect of isolation.Compared with prior art, the embodiment of the present application combines fault detector technology, gsm communication technology and GIS technology, and a kind of full automatic fault isolation system is provided, thereby has improved the efficiency of isolation of short trouble.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, the accompanying drawing the following describes is only some embodiment that record in the application, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structured flowchart of the application's distribution line short trouble shielding system embodiment;
Fig. 2 is an example schematic of the application's distribution line short trouble shielding system embodiment;
Fig. 3 is a kind of structural representation of the application's headend;
Fig. 4 is the principle schematic of the application's asymmetric current source;
Fig. 5 is the workflow diagram of the application's distribution line short trouble shielding system embodiment.
Embodiment
In order to make those skilled in the art person understand better the technical scheme in the application, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiment.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all should belong to the scope of the application's protection.
Referring to Fig. 1, the figure shows the structure chart of the application's distribution line short trouble system embodiment.This system is made up of at least one fault probe 101, headend 102, GSM/GPRS central station 103 and master station 104, at least two intelligent switchs 105 etc.Narrate respectively annexation and function between each part below.
Fault probe (Fault Detector, FD) 101 is installed on distribution line, and the distribution line here can be the distribution facilities such as the busbar of overhead wire, cable or switch cubicle.In the time that distribution line is short-circuited fault, the fault probe FD being installed on fault branch (for distribution basic routing line) will be triggered, with rear address information and the action message that sends FD to headend, " address information " is the installation site information of fault probe FD, this information can send to headend by the form of digitally encoded signal, and action message is the triggering message that fault probe produces in the time that short trouble occurs.Fault probe detects that the principle of short trouble when short trouble (or be triggered) is: the feature during according to short circuit, by the load current in electromagnetic induction method measurement circuitry, calculate overcurrent definite value at that time according to load current, in the time that electric current exceedes this overcurrent definite value, fault probe is triggered.From testing process, fault probe FD is that a kind of load current that adapts to changes to the detection of fault, the relevant failure detector of short circuit current component during only with fault.In the time that fault probe FD detects fault, can also make fault probe FD provide warning message by color, such as shown in red.
Headend 102 is for sending to GSM/GPRS central station by address information and the action message of fault probe.Between fault probe FD and headend, adopt the mode of wireless telecommunications, for ensureing the accuracy of transmission, wireless telecommunications adopt short range wireless transmission system to realize conventionally, such as communication distance is in 20m, in this case, fault probe FD can pass through short-distance wireless transmitter unit, is transmitted into headend in the mode of radio wave.In actual application, also headend is enclosed in the seal box of a Merlon, utilizes " card line " structure to be directly stuck on distribution line.On the one hand can charged dismounting by this mounting means, without taking off; Headend can be got from circuit " energy " on the other hand, and the connecting inner in support high power lithium battery of battery uses to system and GSM.Headend is an information point, and a headend can corresponding multiple faults be popped one's head in, and in the time that it is installed on circuit breakout place, he can receive the coded messages of totally 9 fault probes from three branches.For switch cubicle and ring main unit, a headend is set in each switching station or ring main unit, can receive fault message, the temperature alarming information etc. that maximum 16 tunnels occur with wireless mode.
GSM/GPRS central station 103 is connected with headend, carries out demodulation, decoding and data processing for action message and the address information of the fault probe to receiving, and then result is sent to master station.Annexation between headend and GSM/GPRS central station can specifically adopt GSM transmission system to realize in actual application, can send to main website by the mode of SMS like this.
Native system embodiment is by the system of intelligent switch, fault probe, headend, GSM/GPRS central station and master station composition, by fault probe detection to failure condition be transported to master station, generate open command by master station, then send to intelligent switch, by intelligent switch according to the connection of this open command open failure probe place circuit, thereby play the effect of isolation.Compared with prior art, native system embodiment combines fault detector technology, gsm communication technology and GIS technology, and a kind of full automatic fault isolation system is provided, thereby has improved the efficiency of isolation of short trouble.
In order to illustrate further the application's the technical characterictic of technical scheme, be explained with a more detailed example below.Referring to Fig. 2, the figure shows a schematic diagram (note: only drawn an intelligent switch in figure) of the application's distribution line short trouble shielding system.In the figure, fault probe FD(Fault Detector) be arranged on the branch line of each circuit bifurcation, while there is short trouble in system, FD detects that short-circuit current or signal specific electric current flow through, by short-distance wireless receive-transmit system, actuating signal is sent to the headend (see the DT[Data Transfer in figure]) of the 20m of being separated by.Headend is arranged on the bifurcation of circuit, can receive 9 FD(respectively on 9 phase circuits of three branches) action message that sends over.Headend is being received after action message, and the FD address information of action branch is issued to GSM/GPRS central station by GSM communication system.GSM/GPRS central station obtains processing after this information, gives master station show result.Master station, according to these action messages of receiving from GSM/GPRS central station, combines with GIS-Geographic Information System and carries out network topology computational analysis, demonstrates subsequently fault point geographical location information, and shows on geographical background.In addition,, if master station also comprises printer, can also print geographical location information.
In above-mentioned instantiation, fault probe FD can specifically adopt intelligent line-failure indicator to form.Intelligent line-failure indicator is the device that can indicate circuit fault current path.Use line-failure indicator, can determine fast phase fault and earth fault section, it can be widely used in built on stilts, the cable line in oil field, city or supporting with the primary equipment such as switch cubicle, case change, can be rapidly, accurate failure judgement circuit and fault point.This fault detector adopts micro-power consumption, high-performance microcontroller as signal processing unit, utilize modern Digital Signal Processing to identify fault message, compared with adopting the fault detector of analog circuit, there is the advantages such as extensibility is strong, high conformity, stable performance, precision is high, antijamming capability is strong.In conjunction with ultrasonic wave, the communication technology such as wireless, can also form distant place automatic fault surveillance.In actual production process, can adopt technical parameter below:
A, system voltage grade: 0.4～35kV;
B, overcurrent definite value: automatically adjust overcurrent definite value according to load current;
C, applicable diameter of wire: <41mm;
D, maximum tolerance short circuit current ability: 31.5kA/2S;
E, failure reset time: while requiring to dispatch from the factory according to user, set;
F, flashing light alarm: 0.25Hz, redness, night, 300M was visible;
G, normal operation circumstances temperature :-40～85 ° of C; H, can action frequency: >2000 time;
I, weight: 0.35kg; J, size: Φ 75mm × 100mm.
In above-mentioned instantiation, the function of headend is to carry out demodulation, decoding after the wireless messages reception that fault detector is sended over, and by GSM, information is sent to GSM/GPRS central station.Particularly, comprise following major function: wireless receiving: receive fault type and branch number that fault detector sends; GSM sends: the address from headend to GSM/GPRS central station, fault type and the branch number that send; Back-up source: headend inside comprise circuit get can and backup battery, backup battery adopts high-energy lithium battery, get without any circuit can in the situation that, backup battery can supported data repeater operation 5 years/300 faults report processes.In actual production process, can adopt technical parameter (referring to Fig. 3, the figure shows headend cut-away drawing) below:
A, controller size: length × wide × height=160mm × 80mm × 80mm;
B, controller weight: <1Kg; C, rated operational voltage: 3.6VDC ± 10%;
D, rated operational current: 20uA; E, Overall Power Consumption: <60uW;
F, wireless receiving distance :≤20m; G, wireless receiving frequency: 433MHz;
H, wireless-modulated pattern: GFSK;
I, gsm module: E-GSM/GPRS900/1800 double frequency-band; J, SIM card power supply: 3V;
K, the maximum configurable number of indicating device: overhead type≤9, cable-type <16 road;
L, backup battery useful life: >5.
GSM/GPRS central station in above-mentioned instantiation is mainly used in realizing telecommunication management and data centralization function, it is communicated by letter with each headend downwards, be responsible for collecting the fault message that field failure indicating device collects, upwards communicate by letter with master station, transmit collected data.GSM/GPRS central station can adopt open system design philosophy to design, and it can be made up of cabinet, power module, primary module and gsm communication module on hardware; Its communication mode that can support comprises by following various interface realizes communication: RS232, RS485,10base-T, be defaulted as RS232 interface.
Master station in above-mentioned instantiation is mainly used to collect on-the-spot indicator motion data, and carries out network topology according to circuit logic figure and calculate acquisition position of failure point.This master station can comprise two subsystems: power distribution network image editing system and fault detection and location information system.Power distribution network image editing system is used for creating and amendment power distribution network network figure, comprises power circuit, shaft tower, switch and fault detector; Fault Detection And Location System is a system that integrates the functions such as data acquisition, the demonstration of power distribution network logic diagram, intelligent trouble location finding, it both can be used to Real-Time Monitoring distribution network state and fault, be convenient to maintenance and the accident maintenance of circuit, can be used to again power distribution network facility to manage, be convenient to typing, inquiry and the statistics of facilities information.In actual application, can also develop systems soft ware master station is controlled.The Main Function of the software systems of fault location system is to collect the address information that communication main website transmits, and it is carried out, after error correction, correction, finding out abort situation and fault paths by topological analysis and calculating, is finally presented on the geographical background of GIS.Fault location system is taking GIS-Geographic Information System GIS as figure support platform, and its core algorithm (as topological analysis, trouble shoot, error correction and mending-leakage) can adopt component technology to realize, and GIS platform has adopted MapObjects2.4 assembly.Except basic GIS function, dwindle and roaming etc. as shown, amplifying, native system can also be achieved as follows distinctive function on GIS platform: (1) shows fault paths with different colors; (2) constantly glimmer fault branch until dispatcher's removing; (3) with the different incorrect fault detectors of color display action with remind dispatcher; (4) preserve fault message so that fault is recurred and analyzed.
It should be noted that: in actual application, also have a kind of special short trouble, i.e. single phase ground fault.This class fault is that what to adopt due to most of power distribution networks is not solidly grounded system of central point, when this type systematic generation single phase ground fault, because fault current is less, fault signature complexity, thereby fault point search very difficult.For this class fault, the application preferably installs asymmetric current source on distribution line.In the time there is single phase ground fault in any point on circuit, the asymmetric current source being contained in transformer station detects after fault message, first judge fault phase, then fault phase is applied to signal specific, failure detector is on the line installed and is detected FD and flow through the signal specific of this circuit, if meet fault signature FD be triggered.In some cases, indicator light can also be set and point out, such as in the time that FD is triggered, provide red display, send a wireless encoding information simultaneously.The asymmetric current source here can form according to following composition: be made up of three vacuum switches A, B, C three-phase (referring to the schematic diagram of the asymmetric current source shown in Fig. 4) of link respectively K1, K2, K3 tri-vacuum switches, high-voltage diode and current-limiting resistances.In the time there is earth fault in the somewhere on circuit, the PT residual voltage of transformer station raises, Earth Phase voltage to earth reduces, healthy phases voltage to earth raises, the corresponding switch motion of asymmetric current source controller control, make to flow through on faulty line (section) pulsation characteristic of unidirectional electric current, and other non-fault line flows through without this characteristic current, after installation detects this signal with the failure detector of transformer station on the line, faulty line and position be can detect, thereby route selection and location are grounded.In addition, near the asymmetric current source due to outdoor installation, do not have Electromagnetic PT signal to use, therefore can built-in accurate electronics PT, utilize this electronics PT to judge whether that earth fault occurs, thereby determine whether high voltage connector moves.
Foregoing have been described in detail the system embodiment of the embodiment of the present application, below the course of work of this system embodiment is described.Referring to Fig. 5, the figure shows the workflow of this embodiment.This flow process comprises:
Step S501: the fault probe being installed on distribution line is triggered to headend transmission address information and action message in the time that distribution line is short-circuited fault;
Step S502: headend receives after the action message of fault probe transmission, sends action message and the address information of fault probe to GSM/GPRS central station;
Step S503:GSM/GPRS central station receives after the action message and address information of fault probe, action message and address information is carried out to demodulation, decoding and data processing, and result is sent to master station;
Step S504: master station shows the geographical location information of short circuit trouble point according to the result of GSM/GPRS central station;
Step S505: the intelligent switch that the two ends of the circuit of fault probe are installed is receiving the connection that disconnects installation fault probe after open command according to this open command.
This workflow is by being installed on the fault probe detecting short trouble on distribution line, then send address information and action message to headend, then be forwarded to GSM/GPRS central station by headend, GSM/GPRS central station receives after the action message and address information of fault probe, action message and address information are carried out to demodulation, decoding and data processing, and result is sent to master station, generate open command by master station, then send to intelligent switch, by intelligent switch according to the connection of this open command open failure probe place circuit, thereby play the effect of isolation.Compared with prior art, this workflow combines fault detector technology, gsm communication technology and GIS technology, and a kind of full automatic fault isolation system is provided, thereby has improved the efficiency of isolation of short trouble.
In actual application, above-mentioned workflow is due to the difference of application scenarios, and its step may there are differences, and to adapt to special requirement, improves technique effect.Such as, when aforementioned workflow is applied to neutral point not when directly grounded distribution system, asymmetric current source is also installed on distribution line, and in the time that short trouble occurs, input is for the signal of failure point detecting, and described fault probe detection is triggered after described signal.Increase the scope of application that this step has expanded aforementioned workflow.Also such as, in real process, speed, the accuracy etc. that each step carries out transmitting in information exchanging process may be subject to the impact of the connected mode between each transmission main body, and the preferred fault probe of the application passes through short range wireless transmission system to headend sending action information; Headend sends action message and the address information of fault probe to described GSM/GPRS central station by GSM transmission system; GSM/GPRS central station sends the result at GSM/GPRS center to master station by Serial Port Information transmission means.
It should be noted that: easy for what narrate, what the various distortion implementations of the embodiment of this specification and embodiment stressed is all and the difference of other embodiment or mode of texturing, between each situation identical similar part mutually referring to.Each unit of system embodiment described above can or can not be also physically to separate, and both can be positioned at a place, or also can be distributed to multiple net environments.In actual application, can select according to the actual needs some or all of unit wherein to realize the object of the present embodiment scheme, those of ordinary skill in the art, in the situation that not paying creative work, are appreciated that and implement.
The above is only the application's embodiment; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the application's principle; can also make some improvements and modifications, these improvements and modifications also should be considered as the application's protection range.
Claims (5)
1. a distribution line short trouble shielding system, is characterized in that, described system comprises: at least two intelligent switchs, at least one fault probe, headend, GSM/GPRS central station and master stations, wherein:
Described fault probe is installed on distribution line, and when the distribution line of installing at fault probe is short-circuited fault, fault probe will be triggered and send address information and action message to headend;
Described headend is connected with fault probe, for receiving after the action message of fault probe, sends action message and the address information of fault probe to GSM/GPRS central station;
Described GSM/GPRS central station is connected with described transponder, for receiving action message and the address information of fault probe, and action message and address information is carried out to demodulation, decoding and data processing, and result is sent to master station;
Described master station is connected with described GSM/GPRS central station by Serial Port Information transmission means, for carrying out topological analysis calculating according to the result of GSM/GPRS central station, open command corresponding to circuit that the fault probe generating and be triggered is installed, and this instruction is sent to intelligent switch, described master station comprises printer;
Described intelligent switch is positioned at the two ends of the circuit that fault probe is installed, for receiving the connection that disconnects installation fault probe after open command according to this open command.
2. system according to claim 1, it is characterized in that, in described system applies, in neutral point not when directly grounded distribution system, described system also comprises the asymmetric current source being installed on distribution line, for input in the time that short trouble occurs for the signal of failure point detecting.
3. system according to claim 2, it is characterized in that, described asymmetric current source comprises the multiple vacuum switches that are connected respectively with each circuitry phase of distribution line, and kenetron, current-limiting resistance and the controller of opening a sluice gate/closing a floodgate for controlling vacuum switch, wherein: after multiple vacuum switch parallel connections, connect with kenetron, high-voltage diode is connected with current-limiting resistance.
4. according to the system described in any one in claims 1 to 3, it is characterized in that, described headend is connected with fault probe by short range wireless transmission system, and described GSM/GPRS central station passes through GSM transmission system and is connected with headend.
5. according to the system described in any one in claims 1 to 3, it is characterized in that, a headend is connected with maximum nine faults probes, and described headend is enclosed in the seal box of Merlon, utilizes card wire structure to be stuck on distribution line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201320605024.0U CN203674702U (en) | 2013-09-25 | 2013-09-25 | Electric power distribution line short circuit fault isolation system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320605024.0U CN203674702U (en) | 2013-09-25 | 2013-09-25 | Electric power distribution line short circuit fault isolation system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490393A (en) * | 2013-09-25 | 2014-01-01 | 国家电网公司 | Distribution line short circuit fault isolation system and method |
| TWI550989B (en) * | 2015-08-13 | 2016-09-21 | Fault Detection Method and System of Communication Divergence Fault | |
| CN106324434A (en) * | 2016-08-31 | 2017-01-11 | 国网山东省电力公司菏泽供电公司 | Intelligent operation detection method for cable |
| CN107561412A (en) * | 2017-09-30 | 2018-01-09 | 广西电网有限责任公司南宁供电局 | A kind of quick feeder fault location of power automation and shielding system and method |
-
2013
- 2013-09-25 CN CN201320605024.0U patent/CN203674702U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490393A (en) * | 2013-09-25 | 2014-01-01 | 国家电网公司 | Distribution line short circuit fault isolation system and method |
| TWI550989B (en) * | 2015-08-13 | 2016-09-21 | Fault Detection Method and System of Communication Divergence Fault | |
| CN106324434A (en) * | 2016-08-31 | 2017-01-11 | 国网山东省电力公司菏泽供电公司 | Intelligent operation detection method for cable |
| CN107561412A (en) * | 2017-09-30 | 2018-01-09 | 广西电网有限责任公司南宁供电局 | A kind of quick feeder fault location of power automation and shielding system and method |
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