CN202631677U - Electrical network fault locating system - Google Patents
Electrical network fault locating system Download PDFInfo
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- CN202631677U CN202631677U CN 201220089465 CN201220089465U CN202631677U CN 202631677 U CN202631677 U CN 202631677U CN 201220089465 CN201220089465 CN 201220089465 CN 201220089465 U CN201220089465 U CN 201220089465U CN 202631677 U CN202631677 U CN 202631677U
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- fault
- signal
- branched line
- detecting
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Abstract
The utility model provides an electrical network fault locating system, comprising the components as following: a fault indicator arranged on the branch line of an electrical network, wherein when a preset fault current on the branch line is detected, the fault signal of the branch line is emitted; a communicating terminal connected with the fault indicator, wherein the fault signal emitted by the fault indicator is received and transmitted; and a fault locating module, which receives the fault signal and determines the fault point position according to the fault signal. According to the electrical network fault locating system, artificial fault point query with a segment power failure method is unnecessary, and thereby the power supply stability of the electrical network is raised.
Description
Technical field
The utility model relates to power domain, relates in particular to a kind of electric network fault detection system.
Background technology
At present; When electrical network breaks down,, adopt the method for power transmission lines being carried out the segmentation investigation usually in order to find out the trouble spot; That is: power transmission lines is carried out segmentation; Break off being connected of each section transmission line and electrical network successively, whether the power transmission lines that manual measurement breaks off exists fault, so that the circuit at localization of faults place.This method of searching the trouble spot be because will break off every section circuited transmission successively, thus can cause the power failure in non-fault zone, thus influence the stability of mains supply.
The utility model content
In view of this, the utility model provides a kind of electric network fault positioning system, and purpose is to solve existing electric network fault localization method influences the stability of mains supply because of the power failure that causes the non-fault zone problem.
A kind of electric network fault positioning system comprises:
Be arranged on the branched line of said electrical network, during preset fault current on detecting said branched line, send the fault detector of the fault-signal that comprises said branched line information;
Link to each other with said fault detector, receive the fault-signal that said fault detector sends, and the communication terminal that said fault-signal is sent;
Receive said fault-signal, and according to said fault-signal, the localization of fault module of localization of faults position.
Preferably, said fault detector comprises:
Detect first detecting unit whether preset short-circuit current is arranged on the said branched line;
When detecting preset short-circuit current, send first transmitter unit of said fault-signal.
Preferably, said fault detector comprises:
The signal source of emission single-phase earth fault current sequence on said branched line;
Detect second detecting unit whether said single-phase earth fault current sequence is arranged on the said branched line;
When detecting said single-phase earth fault current, send second transmitter unit of said fault-signal.
Preferably, said fault detector also comprises:
During fault current on detecting said branched line, send the alarm unit of alerting signal.
Preferably, said localization of fault module comprises:
Receive the receiving element of said fault-signal;
The geographic information database of the geographical location information that storage is preset;
According to said fault-signal and geographic information database, confirm the position determination unit in the geographic position of said trouble spot.
Preferably, said system also comprises:
The position of said trouble spot is sent to the position of failure point transmitting element at preset terminal.
Preferably, said system also comprises:
The display unit that the position of said trouble spot is shown.
Preferably, said system also comprises:
Store the stored data base of the position of said trouble spot.
Electric network fault detection system and method that the utility model embodiment provides; Through on the line of electric force in electrical network fault detector being set; Can fault-signal be sent to locating terminal; Locating terminal carries out the status according to GIS-Geographic Information System with the trouble spot, and the method that does not need to be had a power failure with segmentation by manual pick is again inquired about the trouble spot, thereby has improved the stability of mains supply.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the disclosed a kind of electric network fault positioning system of the utility model embodiment;
Fig. 2 is the structural representation of localization of fault module in the disclosed a kind of electric network fault positioning system of the utility model embodiment;
Fig. 3 is the structural representation of a kind of fault detector in the disclosed electric network fault positioning system of the utility model embodiment;
Fig. 4 is the structural representation of another fault detector in the disclosed a kind of electric network fault positioning system of the utility model embodiment.
Embodiment
The utility model discloses a kind of electric network fault positioning system; Be used for locating automatically the position of the trouble spot of electrical network; Its core utility model point is; Said system comprises: be arranged on the branched line of said electrical network, during fault current on detecting said branched line, send the fault detector of fault-signal; Receive the fault-signal that said fault detector sends, and the communication terminal that said fault-signal is sent; According to said fault-signal, the localization of fault module of localization of faults position.Said system is the particular location of fault location point fast, and no longer needs manual work to detect each section power circuit successively.
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The disclosed a kind of electric network fault positioning system of the utility model is applied in the existing power network, and as shown in Figure 1, said system comprises:
General, can a fault detector all be set for every branched line, also can be for a branched line is provided with a plurality of fault detectors, the quantity of the fault detector that on branched line, is provided with is many more, and system is just sensitiveer to the reaction of electric network fault.
Optional; Communication terminal can be arranged at the bifurcation of circuit in the electrical network; A communication terminal can be accepted the fault-signal that a plurality of fault detectors send simultaneously; General, the communication range of fault detector and communication terminal is 2 meters to 10 meters, sends failure message can for this communication terminal with the fault detector of distance in this scope of communication terminal.Communication terminal can adopt the mode of radio communication to accept or send fault-signal, for example adopts the communication mode of GSM or GPRS.
Localization of fault module 103 is used for according to said fault-signal localization of faults position.
Preferably, as shown in Figure 2, the localization of fault module specifically can comprise:
Receiving element 201 is used to receive fault-signal;
Position determination unit 203 is used for confirming the geographic position of said trouble spot according to said fault-signal and geographic information database.
Particularly, can comprise the information of fault branch circuit in the fault-signal, the numbering of fault branch circuit for example, position determination unit be according to the numbering of fault detector, and the combining geographic information database just can be confirmed the particular location of fault detector.
This device that utilizes GIS-Geographic Information System that failure message is positioned had both been avoided artificial and had been searched the loaded down with trivial details of trouble spot, can improve the accuracy of location again.
Preferably, said system can also comprise:
Transmitting element is used for after determining the position of trouble spot, positional information being sent to preset terminal
Preset terminal can be maintenance personal's communication facilities, so that the maintenance personal makes timely processing to fault.
Perhaps,
Display unit is used for the position of said trouble spot is shown, concrete display mode can show for each the bar branch road with electrical network, and marks out the position of trouble spot therein.
Perhaps,
Stored data base is used to store the position of said trouble spot.
Perhaps, arbitrary combination of transmitting element, display unit and stored data base three.
Wherein transmitting element, display unit and stored data base both can independently be set to the unit in the system, also can be integrated in the localization of fault module, and present embodiment is not done qualification.
The described electric network fault positioning system of present embodiment; Through fault detector detection failure electric current; And transmission fault-signal; Localization of fault module combining geographic information system positions the trouble spot, just can orient the trouble spot and no longer need carry out the segmentation power failure to electrical network, has improved the stability of mains supply.
Further, fault current preset described in the present embodiment can be short-circuit current and/or single-phase earth fault current sequence, and corresponding, as shown in Figure 3, the fault detector described in the present embodiment can specifically comprise:
First detecting unit 301 is used to detect short-circuit current preset on the said branched line;
Wherein, preset short-circuit current is in the preset time, increases to preset peak value and by the electric current of said preset peak value vanishing by currency.For example, if the currency of electric current is 100A, in the preset time, detected electric current is increased to 1000A by 100A, is reduced to 0A again, then explains to have short-circuit current on the branched line.
First transmitter unit 302 is used for when detecting preset short-circuit current, sending said fault-signal.
Perhaps, as shown in Figure 4, said fault detector can specifically comprise:
Signal source 401 is used for emission single-phase earth fault current sequence on said branched line;
Optional, said signal source is arranged in the transformer station, after earth fault continues a period of time; Signal source triggers A.C. contactor; Begin to send the fault current sequence, when this current sequence can be crossed faulty line together, and can not pass through non-fault line; So the fault detector on the faulty line can detect this fault current sequence.
Second detecting unit 402 is used to detect the above single-phase earth fault current sequence of said branched line;
Second transmitter unit 403 is used for when detecting said single-phase earth fault current, sends said fault-signal.
Wherein, can detect the short trouble of circuit like the described fault detector of Fig. 3, and fault detector as shown in Figure 4 can detect the singlephase earth fault of circuit; In practical application; The structure of fault detector can be of Fig. 3, and is perhaps as shown in Figure 4, perhaps for realize can detection line short trouble also can detection line singlephase earth fault; Can Fig. 3 and structure shown in Figure 4 be carried out integratedly, the indicating fault implement body after integrated comprises:
Signal source is used for emission single-phase earth fault current sequence on said branched line;
Detecting unit is used to detect short-circuit current or said single-phase earth fault current sequence preset on the said branched line;
Transmitter unit is used for when detecting preset short-circuit current and/or said single-phase earth fault current sequence, sending said fault-signal.
Above-mentioned fault detector is used to detect the fault of place branched line, and hardware configuration is easy to realize, is laying a good foundation of localization of fault.
Further, said fault detector can also comprise:
Alarm unit when being used for the fault current on detecting said branched line, sends alerting signal.Alarm unit can be so that the field staff finds faulty line fast, and preferably, alerting signal can be audio alert signal or photoelectric alarm signal etc.
Each embodiment adopts the mode of going forward one by one to describe in this instructions, and what each embodiment stressed all is and the difference of other embodiment that same or similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (7)
1. an electric network fault positioning system is characterized in that, comprising:
Be arranged on the branched line of said electrical network, during preset fault current on detecting said branched line, send the fault detector of the fault-signal that comprises said branched line information;
Link to each other with said fault detector, receive the fault-signal that said fault detector sends, and the communication terminal that said fault-signal is sent;
Receive said fault-signal, and according to said fault-signal, the localization of fault module of localization of faults position.
2. system according to claim 1 is characterized in that, said fault detector comprises:
Detect first detecting unit whether preset short-circuit current is arranged on the said branched line;
When detecting preset short-circuit current, send first transmitter unit of said fault-signal.
3. system according to claim 1 is characterized in that, said fault detector comprises:
The signal source of emission single-phase earth fault current sequence on said branched line;
Detect second detecting unit whether said single-phase earth fault current sequence is arranged on the said branched line;
When detecting said single-phase earth fault current, send second transmitter unit of said fault-signal.
4. according to each described system of claim 1 to 3, it is characterized in that said fault detector also comprises:
During fault current on detecting said branched line, send the alarm unit of alerting signal.
5. system according to claim 1 is characterized in that, said localization of fault module comprises:
Receive the receiving element of said fault-signal;
The geographic information database of the geographical location information that storage is preset;
According to said fault-signal and geographic information database, confirm the position determination unit in the geographic position of said trouble spot.
6. according to claim 1 or 5 described systems, it is characterized in that, also comprise:
The position of said trouble spot is sent to the position of failure point transmitting element at preset terminal.
7. according to each described system of claim 1 to 5, it is characterized in that, also comprise:
The display unit that the position of said trouble spot is shown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220089465 CN202631677U (en) | 2012-03-09 | 2012-03-09 | Electrical network fault locating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220089465 CN202631677U (en) | 2012-03-09 | 2012-03-09 | Electrical network fault locating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202631677U true CN202631677U (en) | 2012-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220089465 Expired - Lifetime CN202631677U (en) | 2012-03-09 | 2012-03-09 | Electrical network fault locating system |
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| CN (1) | CN202631677U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308820A (en) * | 2012-03-09 | 2013-09-18 | 建德市供电局 | Power grid fault positioning system |
| CN103513161A (en) * | 2013-09-27 | 2014-01-15 | 孙双春 | Power transmission and transformation system fault searching locating instrument and searching method |
| CN104823062A (en) * | 2013-01-08 | 2015-08-05 | 伊顿公司 | Detection and location of electrical connections having micro-interface abnormality in electrical system |
| CN105676064A (en) * | 2016-01-12 | 2016-06-15 | 国网浙江省电力公司嘉兴供电公司 | User-side leakage current monitoring method and system |
-
2012
- 2012-03-09 CN CN 201220089465 patent/CN202631677U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308820A (en) * | 2012-03-09 | 2013-09-18 | 建德市供电局 | Power grid fault positioning system |
| CN104823062A (en) * | 2013-01-08 | 2015-08-05 | 伊顿公司 | Detection and location of electrical connections having micro-interface abnormality in electrical system |
| CN103513161A (en) * | 2013-09-27 | 2014-01-15 | 孙双春 | Power transmission and transformation system fault searching locating instrument and searching method |
| CN103513161B (en) * | 2013-09-27 | 2017-07-14 | 中国石油化工股份有限公司 | Electrical power trans mission/distribution system trouble shoot position indicator and lookup method |
| CN105676064A (en) * | 2016-01-12 | 2016-06-15 | 国网浙江省电力公司嘉兴供电公司 | User-side leakage current monitoring method and system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |