CN208188248U - A kind of detection of cable fault positioning device - Google Patents
A kind of detection of cable fault positioning device Download PDFInfo
- Publication number
- CN208188248U CN208188248U CN201820812659.0U CN201820812659U CN208188248U CN 208188248 U CN208188248 U CN 208188248U CN 201820812659 U CN201820812659 U CN 201820812659U CN 208188248 U CN208188248 U CN 208188248U
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- signal
- fault
- cable
- detection
- voltage
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Links
- 238000001514 detection method Methods 0.000 title claims abstract description 15
- 239000012774 insulation material Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004807 localization Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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- Locating Faults (AREA)
Abstract
The utility model discloses a kind of detection of cable fault positioning devices, including high-voltage pulse generator, signal coupler and sense voltage table；High-voltage pulse generator is used for failure cable circuit output high-voltage pulse signal, to generate fault current；The signal coupler covers on failure cable, for incuding fault current, and converts voltage signal for the fault-current signal sensed and is sent on sense voltage table；The detection of cable fault positioning device is converted into voltage signal by the current signal that signal coupler acquires in fault point front-rear position, and sense voltage table is sent by voltage signal, by the data for reading sense voltage table, the section of fault point can be locked, to facilitate the position for finding fixed point of testing crew efficiently and accurately, time of trouble shoot is effectively shortened.
Description
Technical field
The utility model relates to power failure detection technique field, in particular to a kind of detection of cable fault positioning device.
Background technique
Searching fault of power cable is generally divided into three nature of trouble diagnosis, fault localization, position determination of fault steps progress.Greatly
In more situations, ground resistance more by field joint be excessive or fault point water inlet etc. influences, and existing distance measuring method is often difficult to quickly
Locking abort situation, the data after ranging are also required to repeated authentication, this just substantially prolongs the time of trouble shoot.Meanwhile
In the case where comb, trombone slide etc. lay environment, the effect of position determination of fault is often not satisfactory, therefore with greater need for accurate confirmation faulty section
Between.
Utility model content
The purpose of the utility model is to provide a kind of detection of cable fault positioning devices.
For this purpose, technical solutions of the utility model are as follows:
A kind of detection of cable fault positioning device, including high-voltage pulse generator, signal coupler and sense voltage table；It is high
Impulse generator is pressed to be used for failure cable circuit output high-voltage pulse signal, to generate fault current；The signal coupler
It covers on failure cable, for incuding fault current, and converts voltage signal for the fault-current signal sensed and be sent to
On sense voltage table.
Further, the shell of the signal coupler is plastic insulation material, and its bore should be greater than full-size
The outside diameter of cable.
Further, the sense voltage table judges event by the deflection of pointer for being read out to fault current
Hinder the orientation of point.
Compared with prior art, which is adopted in fault point front-rear position by signal coupler
The current signal of collection is converted into voltage signal, and sends sense voltage table for voltage signal, by reading sense voltage table
Data, can lock the section of fault point, to facilitate the position for finding fixed point of testing crew efficiently and accurately, effectively shorten
The time of trouble shoot.
Detailed description of the invention
Fig. 1 is the schematic diagram of detection of cable fault positioning device provided by the utility model.
Fig. 2 uses schematic diagram for the detection of cable fault positioning device.
Specific embodiment
With reference to the accompanying drawing and specific embodiment is described further the utility model, but following embodiments are right absolutely not
The utility model has any restrictions.
A kind of detection of cable fault positioning device, as shown in Fig. 1~2, including high-voltage pulse generator 1, signal coupler 2
With sense voltage table 3；High-voltage pulse generator 1 is used for failure cable circuit output high-voltage pulse signal, to generate failure electricity
Stream；2 sets of the signal coupler turns on failure cable for incuding fault current, and by the fault-current signal sensed
Voltage signal is turned to be sent on sense voltage table 3.
The shell of the signal coupler 2 is plastic insulation material, and its bore should be greater than outside maximum sized cable
Diameter.
The sense voltage table 3 judges the side of fault point by the deflection of pointer for being read out to fault current
Position.
The working principle of detection of cable fault positioning device provided by the utility model is as follows:
After implementing fault localization to faulty line, the present apparatus is used in the fault section of suspection；First in route
Head end applies high-voltage signal by high-voltage pulse generator 1, then by signal coupler 2 near the abort situation that ranging is shown
It is fastened on cable body, observes the throw of pointer situation of sense voltage table 3, if the pointer of sense voltage table 3 has deflection, after
Continuous terminad is mobile, until pointer zero deflection or obviously becomes smaller, i.e., lockable fault point is in a upper inflection point and this position
Between；
For testing crew when head end applies high-voltage pulse signal 4 to failure cable core 5, fault current or leakage current are only
It circulates between head end and fault point, when fault current or leakage current pass through signal coupler 2 due to electromagnetic induction principle,
The secondary side moment of signal coupler 2 can generate induced voltage；Fault point has been crossed, has not had the variation in magnetic field in signal coupler 2
Or obviously become smaller, that is, it can determine whether the orientation of fault point.
Claims (3)
1. a kind of detection of cable fault positioning device, which is characterized in that including high-voltage pulse generator (1), signal coupler (2)
With sense voltage table (3)；High-voltage pulse generator (1) is used for failure cable circuit output high-voltage pulse signal, to generate event
Hinder electric current；The signal coupler (2) covers on failure cable, for incuding fault current, and the fault current that will be sensed
Signal is converted into voltage signal and is sent on sense voltage table (3).
2. detection of cable fault positioning device according to claim 1, which is characterized in that the signal coupler (2)
Shell be plastic insulation material, and its bore should be greater than the maximum sized outside diameter of cable.
3. detection of cable fault positioning device according to claim 1, which is characterized in that the sense voltage table (3)
For being read out to fault current, the orientation of fault point is judged by the deflection of pointer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820812659.0U CN208188248U (en) | 2018-05-29 | 2018-05-29 | A kind of detection of cable fault positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820812659.0U CN208188248U (en) | 2018-05-29 | 2018-05-29 | A kind of detection of cable fault positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208188248U true CN208188248U (en) | 2018-12-04 |
Family
ID=64428775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820812659.0U Active CN208188248U (en) | 2018-05-29 | 2018-05-29 | A kind of detection of cable fault positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208188248U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110346679A (en) * | 2019-08-14 | 2019-10-18 | 广东电网有限责任公司 | A kind of high-voltage cable joint metallic earthing failure Fast Fixed-point method |
| CN115792345A (en) * | 2023-02-10 | 2023-03-14 | 深圳市固特电源技术有限公司 | Three-phase voltage stabilization detection method and system, storage medium and intelligent terminal |
-
2018
- 2018-05-29 CN CN201820812659.0U patent/CN208188248U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110346679A (en) * | 2019-08-14 | 2019-10-18 | 广东电网有限责任公司 | A kind of high-voltage cable joint metallic earthing failure Fast Fixed-point method |
| CN115792345A (en) * | 2023-02-10 | 2023-03-14 | 深圳市固特电源技术有限公司 | Three-phase voltage stabilization detection method and system, storage medium and intelligent terminal |
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