CN207703973U - The monitoring device of transmission line of electricity discharging fault based on magnetic field mutation - Google Patents
The monitoring device of transmission line of electricity discharging fault based on magnetic field mutation Download PDFInfo
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- CN207703973U CN207703973U CN201820067595.6U CN201820067595U CN207703973U CN 207703973 U CN207703973 U CN 207703973U CN 201820067595 U CN201820067595 U CN 201820067595U CN 207703973 U CN207703973 U CN 207703973U
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Abstract
The utility model is related to Power System Faults Detection technical fields, more particularly to a kind of monitoring device of the transmission line of electricity discharging fault based on magnetic field mutation, including host, support tube is arranged in the top of host, photovoltaic panel, inside setting magnetic field sensor, shooting start-up circuit, filming apparatus, memory and the signal transmission device and power supply system of host is arranged in the upper end of support tube；The utility model can obtain the pictorial information when electric discharge of transmission line malfunction moment arc burning automatically, by analyzing the circuit parts in picture coverage, in fault moment, whether there is or not arc burning phenomenons, judge the concrete position of circuit ontology failure, avoid a series of problems that patrolling transmission line after accident is brought, improve the tour efficiency of faulty line, be conducive to the quick analyzing processing of failure and restore electricity, it is horizontal to improve electric power netting safe running.
Description
Technical field
The utility model is related to Power System Faults Detection technical fields, and in particular to a kind of transmission of electricity based on magnetic field mutation
The monitoring device of line discharge failure.
Background technology
Transmission line of electricity is the important component of electric system, is the tie of power supply and substation and power consumer contact.
Transmission line of electricity is by basis, shaft tower, conducting wire, overhead ground wire, insulator, gold utensil, earthing or grounding means, auxiliary equipment and environment channel etc.
Constitute, power transmission function realized by establishing electromagnetic field in the conductor space of transmission line of electricity, due to transmission line of electricity crosses over mountain after mountain,
It is crisscross, up to several kilometers to thousands of kilometers, by the shadow of the factors such as circuit ontology dielectric level, natural calamity and external force destruction
It rings, the breaking accident caused by line insulation disruptive discharge happens occasionally.Can also it be divided into according to the property of transmission line malfunction
Two kinds of transient fault and permanent fault, transient fault is primarily referred to as insulator edge flashing caused by thunder and lightning, circuit pair
Tree discharge, big wind-induced short in short-term or causes to discharge apart from deficiency, passes through electric discharge, wink caused by birds body or birds droppings
Between short circuit dischange caused by the foreign matter that moves etc..Permanent fault refers mainly to down bar, broken string, insulator breakdown, band ground wire conjunction
Lock, or not equal enough caused failure of free time is gone, operative practice shows：It is all wink that overhead transmission line, which has 90% or more failure,
The reclosing success rate of when property failure, line fault is very high., mainly there is lightning stroke in the reason of common fault type and initiation accident
Conducting wire caused by causing flashover fault, external force destruction that discharge accident, windage yaw over the ground is caused to cause distance insufficient over the ground discharge accident,
Short circuit or exhausted caused by broken string caused by insulator arc-over accident, icing caused by environment filth or insulation flashover accident, bird pest
Edge flashover fault, mountain fire cause short circuit dischange accident etc..Also transmission line of electricity caused by natural calamity, geological disaster falls
The accidents such as tower, broken string, grounded-line wave broken string or dielectric breakdown accident etc., and the ratio of shared total accident is relatively low.Circuit is run
Regulation provides transmission line of electricity once breaking accident occurs, and needs to carry out accident line walking immediately, searches fault point, determines nature of trouble
And severity, the repairing of rapid tissue accident.
It is most common since the ratio shared by the apparent permanent fault of fault signature is relatively low in above type of accident
Not very significantly, especially circuit re-switching acts successful circuit to the fault signature of line accident breaking, searches fault point
It is very difficult with the work of determining precise location.Though having the fault positioning method for transmission line of some different principles at present, such as：Resistance
Anti- telemetry, travelling wave ranging method etc..But practical experience shows：Since range error is larger, the error of impedance method is general
In the range of 5%-10%, then ledger line road distance, the circuit that part circuit T connects is more, and difficult, required time is searched in fault point
It is often longer, generally all service restoration and accident maintenance speed are seriously affected in even longer time a few hours；Even some events
Barrier point, which is searched, to be needed to put into a large amount of man power and material, even if passing through dozens of kilometres sometimes, climbs up tens of meters of overhead line structures, past
It is multiple to return tour, the concrete position of electric discharge is also difficult to find that, hidden danger is left to the safe operation of transmission line of electricity in the future.Therefore, soon
It is prompt accurately to search fault point, it determines failure degradation, takes targetedly precautionary measures and O＆M strategy, robbed in time
Defect elimination is repaiied, damage insulator is replaced, fast recovery of power supply is significant to improving power supply reliability.
Transmission line of electricity most common failure is using insulation breakdown electric discharge as representative accident phenomenon, especially with single-phase earthing electric discharge (line
Road insulator arc-over, conducting wire caused by foreign matter over the ground discharge) and alternate air breakdown discharge it is in the majority.Since transmission line of electricity is equipped with
Protective relaying device and auto recloser, once the action of discharge fault line protective devices occurs, deenergization side is disconnected
Road device makes line outage and disengagement failure point.The duration of discharging fault namely the burning time of power frequency arc burning take
Certainly in protective relaying device actuation time and the intrinsic opening time of breaker, usually within 100 milliseconds, if energy visual record is defeated
The power frequency continued flow electric discharge phenomena of electric line insulator, you can failure is greatly lowered in the specific trouble location of judgement accident electric discharge
The labor intensity of trouble location is searched and determined to point, improves line inspection efficiency, improves dead line repairing and restores electricity
Speed also avoids the outdoor tour under bad weather, is conducive to guarantee personal safety.
Utility model content
In order to solve the above-mentioned technical problem the deficiency in, the purpose of this utility model is that：It provides a kind of prominent based on magnetic field
The transmission line of electricity discharging fault localization method and monitoring device of change, can intuitive judgment and quickly search and determine power transmission line
The trouble location on road, solves current fault localization inaccuracy, and line fault is accurately positioned difficult engineering technology problem.
The utility model is that technical solution used by solving its technical problem is：
The transmission line of electricity discharging fault localization method based on magnetic field mutation, includes the following steps：
1), the Magnetic Field on the magnetic field sensor acquisition transmission line of electricity of monitoring device, filming apparatus are directed at line insulation
Area of space and along line corridor；
2), when discharge fault occurs for the area along the line of transmission line of electricity, magnetic field sensor experiences the space magnetic field of mutation
Information, magnetic field sensor send out shooting signal to filming apparatus, and filming apparatus starts, and makes the electricity of burning in breaker actuation breaking
Before expulsion of arc goes out, the pictorial information in the coverage of record transmission line of electricity space, and preserve；
3), by signal transmission device by the picture transfer taken to user terminal；
4), transmission line of electricity operation maintenance personnel judges the trouble location of transmission line of electricity according to the image taken, if there is flashover to put
Electric fault is determined according to the picture of arc burning when recording insulator edge flashing or line-to-ground electric discharge using it as failure
The criterion of position；
5), user terminal is again started up filming apparatus shooting picture, circuit ontology insulator caused by diagnostic analysis failure,
The damaged condition of wire guiding member.
6) after, fault moment arc burning discharge process terminates or shoots picture again automatically, monitoring device is back to initially
State.
Further preferably, monitoring device after power up or reset, executes initialization task automatically, carries out self-diagnosis, from
Inspection is abnormal to be sent out and plant failure signal is to user terminal.
Further preferably, user terminal includes that the special-purpose terminal, mobile phone terminal, dispatching automation main website of operation maintenance personnel are whole
End.
The monitoring device of the transmission line of electricity discharging fault localization method based on magnetic field mutation, including host, host
Top support tube is set, photovoltaic panel is arranged in the upper end of support tube, and the inside setting magnetic field sensor of host, shooting start electricity
Road, filming apparatus, memory and signal transmission device and power supply system, the magnetic field sensor, shooting start-up circuit, shooting
Device, memory pass sequentially through signal-transmitting cable and are connected, and signal transmission device passes the signal along to user terminal.
Further preferably, power supply system includes wind-power electricity generation component and accumulator.
Further preferably, slot is arranged in the upper end of support tube inner hollow, host, and support tube is inserted into slot, and is led to
Bolt is crossed to be fixed.
Compared with prior art, the utility model has the advantages that：
The utility model can obtain the pictorial information when electric discharge of transmission line malfunction moment arc burning automatically, by dividing
Whether there is or not arc burning phenomenons in fault moment for circuit parts within the scope of analysis picture shooting, judge the specific portion of circuit ontology failure
Position avoids a series of problems that patrolling transmission line after accident is brought, improves the tour efficiency of faulty line, be conducive to therefore
Barrier quick analyzing processing and restore electricity, improve electric power netting safe running level；In addition, device is without being constantly in work shape
State, signal transmission loop are to transmit the pictorial information of fault moment arc burning, communicate required flow and are greatly decreased, can be with
Save a large amount of campus network.
Description of the drawings
The structural schematic diagram of Fig. 1 the utility model；
Each component connection diagram of Fig. 2 the utility model；
Fig. 3 the utility model flow diagrams.
In figure：1, photovoltaic panel；2, support tube；3, host；4, filming apparatus；5, signal transmission device；6, user terminal；7, it transports
The special-purpose terminal of dimension personnel；8, magnetic field sensor；9, start-up circuit is shot.
Specific implementation mode
The utility model embodiment is described further below in conjunction with the accompanying drawings：
Embodiment 1
As shown in Figs. 1-3, the transmission line of electricity discharging fault localization method described in the utility model based on magnetic field mutation, packet
Include following steps：
1), the magnetic field sensor 8 of monitoring device acquires the Magnetic Field on transmission line of electricity, and it is exhausted that filming apparatus 4 is directed at circuit
Edge and area of space along line corridor；
2), when discharge fault (ground connection and phase fault) occurs for the area along the line of transmission line of electricity, the electricity in transmission line of electricity
Stream increases, and transmission line of electricity voltage reduces, and the amplitude reduced closer to fault point voltage is bigger, is increased using transmission line of electricity electric current,
Ambient magnetic field strength synchronizes increased physical phenomenon, and magnetic field sensor 8 experiences the space magnetic field information of mutation, specifically, empty
Between after the increased amplitude of magnetic field intensity or mutating speed reach definite value, magnetic field sensor 8 sends out shooting signal to filming apparatus 4,
Filming apparatus 4 starts, before breaker actuation breaking makes the arc extinction of burning, in the coverage of record transmission line of electricity space
Pictorial information, and preserve；
3), by signal transmission device 5 by the picture transfer taken to user terminal 6；
4), transmission line of electricity operation maintenance personnel judges the trouble location of transmission line of electricity according to the image taken, if there is flashover to put
Electric fault is determined according to the picture of arc burning when recording insulator edge flashing or line-to-ground electric discharge using it as failure
The criterion of position；
5), user terminal 6 is again started up filming apparatus 4 and shoots picture, and circuit ontology insulate caused by diagnostic analysis failure
The damaged condition of son, wire guiding member.
6) after, fault moment arc burning discharge process terminates or shoots picture again automatically, monitoring device is back to initially
State.
Wherein, monitoring device after power up or reset, executes initialization task automatically, carries out self-diagnosis, and self-test is abnormal
It sends out and plant failure signal is to user terminal 6；User terminal 6 includes the special-purpose terminal 7, mobile phone terminal, scheduling of operation maintenance personnel
Automate main website terminal.
The monitoring device of the transmission line of electricity discharging fault localization method based on magnetic field mutation, including host 3, host
Support tube 2 is arranged in 3 top, and photovoltaic panel 1 is arranged in the upper end of support tube 2, and the inside setting magnetic field sensor 8 of host 3, shooting are opened
Dynamic circuit 9, filming apparatus 4, memory and signal transmission device 5 and power supply system, the magnetic field sensor 8, shooting start
Circuit 9, filming apparatus 4, memory pass sequentially through signal-transmitting cable and are connected, and signal transmission device 5 passes the signal along to user
Terminal 6.
Host 3 is directly installed on electric power line pole tower, is fixed by bottom fixing bolt, light structure, installation
Simply.Filming apparatus 4 includes mainly camera, and camera angle can be adjusted voluntarily, to quasi-insulator, alternate gap after adjustment
Deng the area of space along line corridor.
Wherein, power supply system includes wind-power electricity generation component and accumulator, can take the mode of a variety of power supplies, support tube 2
Slot is arranged in the upper end of inner hollow, host 3, and support tube 2 is inserted into slot, and is fixed by bolt.
Claims (4)
1. a kind of monitoring device of the transmission line of electricity discharging fault based on magnetic field mutation, which is characterized in that including host (3),
Magnetic field is arranged in the inside of the top setting support tube (2) of host (3), the upper end setting photovoltaic panel (1) of support tube (2), host (3)
Sensor (8), shooting start-up circuit (9), filming apparatus (4), memory and signal transmission device (5) and power supply system, institute
Magnetic field sensor (8), shooting start-up circuit (9), filming apparatus (4), memory is stated to pass sequentially through signal-transmitting cable and be connected,
Signal transmission device (5) passes the signal along to user terminal (6).
2. the monitoring device of the transmission line of electricity discharging fault according to claim 1 based on magnetic field mutation, feature exist
In power supply system includes wind-power electricity generation component and accumulator.
3. the monitoring device of the transmission line of electricity discharging fault according to claim 1 based on magnetic field mutation, feature exist
In the upper end of, support tube (2) inner hollow, host (3), slot is set, support tube (2) is inserted into slot, and by bolt into
Row is fixed.
4. the monitoring device of the transmission line of electricity discharging fault according to claim 1 based on magnetic field mutation, feature exist
In user terminal (6) includes the special-purpose terminal (7), mobile phone terminal, dispatching automation main website terminal of operation maintenance personnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820067595.6U CN207703973U (en) | 2018-01-15 | 2018-01-15 | The monitoring device of transmission line of electricity discharging fault based on magnetic field mutation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820067595.6U CN207703973U (en) | 2018-01-15 | 2018-01-15 | The monitoring device of transmission line of electricity discharging fault based on magnetic field mutation |
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| Publication Number | Publication Date |
|---|---|
| CN207703973U true CN207703973U (en) | 2018-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820067595.6U Expired - Fee Related CN207703973U (en) | 2018-01-15 | 2018-01-15 | The monitoring device of transmission line of electricity discharging fault based on magnetic field mutation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108169642A (en) * | 2018-01-15 | 2018-06-15 | 国网山东省电力公司潍坊供电公司 | Transmission line of electricity discharging fault localization method and monitoring device based on magnetic field mutation |
| CN111880043A (en) * | 2020-06-29 | 2020-11-03 | 武汉钢铁有限公司 | Method, device and system for positioning fault hidden danger points of power transmission line |
| CN113325284A (en) * | 2021-06-04 | 2021-08-31 | 国网内蒙古东部电力有限公司电力科学研究院 | Gas-solid combined insulation breakdown characteristic test device |
-
2018
- 2018-01-15 CN CN201820067595.6U patent/CN207703973U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108169642A (en) * | 2018-01-15 | 2018-06-15 | 国网山东省电力公司潍坊供电公司 | Transmission line of electricity discharging fault localization method and monitoring device based on magnetic field mutation |
| CN111880043A (en) * | 2020-06-29 | 2020-11-03 | 武汉钢铁有限公司 | Method, device and system for positioning fault hidden danger points of power transmission line |
| CN113325284A (en) * | 2021-06-04 | 2021-08-31 | 国网内蒙古东部电力有限公司电力科学研究院 | Gas-solid combined insulation breakdown characteristic test device |
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Granted publication date: 20180807 Termination date: 20190115 |