CN209132367U - The instant measuring device of linkage type traveling wave path length - Google Patents
The instant measuring device of linkage type traveling wave path length Download PDFInfo
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- CN209132367U CN209132367U CN201821928934.1U CN201821928934U CN209132367U CN 209132367 U CN209132367 U CN 209132367U CN 201821928934 U CN201821928934 U CN 201821928934U CN 209132367 U CN209132367 U CN 209132367U
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- terminal
- traveling wave
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- launch
- transmission pressure
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Abstract
The utility model discloses a kind of instant measuring devices of linkage type traveling wave path length, including launch terminal, terminal and transmission pressure are received, the launch terminal and reception terminal are set to the both ends of the transmission pressure and by conducting wire and the transmission pressure equipotential links；When defect electric discharge occurs for transmission line of electricity, receive terminal acquisition electric discharge traveling wave, and trigger signal is sent out to launch terminal, so that the cylindrical electrode of launch terminal changes to the current potential of transmission pressure, creeping discharge is simulated, a high-frequency impulse is sent, simultaneously, it receives terminal to acquire the high frequency traveling wave emitted in real time, launch terminal is aligned by system with the GPS time for receiving terminal, by calculating the actual range of traveling wave on the transmission line；The physical length that wave transmits on the transmission line is calculated finally by dependency rule, the both-end positioning of traveling wave is carried out based on the above basis, more existing calculating is more accurate.
Description
Technical field
The utility model relates to a kind of instant measuring devices of linkage type traveling wave path length.
Background technique
In recent years, more and more transmission lines of electricity are incorporated into the power networks, and power grid security continuous operation or can quickly look for after a failure
Become one important research content of power domain at this stage to fault point.Compare traditional localization method based on impedance parameter and
Speech, emerging traveling wave positioning mode have many advantages, such as that high reliablity, precision are high, search field in electric network fault positioning or point of discharge and get over
To be more used widely.
Traveling wave positioning is mainly using the method for both-end positioning, distance between two monitoring points in this method, in practice usually
Directly adopt the span (i.e. horizontal distance between two shaft tower tower tops) of input system before equipment is installed.And transmission line of electricity is in reality
In operation, because of the presence of arc sag, there are biggish deviations between the line length and span between two shaft towers, and this deviation can
(such as temperature increases) can be changed with environmental factor and increased, the calculated result for then causing traveling wave both-end to position occurs biggish
Error is impacted to the timely investigation of screen of trees or other types route hidden danger point.
Utility model content
Technical problem to be solved in the utility model is to overcome defect described above, provides a kind of linkage type traveling wave biography
The defeated instant measuring device of path length solves the road for causing traveling wave to be transmitted on the line because environment is different, arc sag is different
The inconsistent problem for carrying out error to traveling wave both-end positioning belt of electrical path length.
In order to solve the problems, such as that techniques described above, linkage type traveling wave path length described in the utility model measure immediately
Device, including launch terminal, reception terminal and transmission pressure, the launch terminal and reception terminal are set to the transmission pressure
Both ends and pass through conducting wire and the transmission pressure equipotential link；
The launch terminal includes that cylindrical electrode, insulation board, pressure-resistant insulating glass, transmitting terminal take ferroelectric core, transmitting terminal electricity
Source module and transmitting end signal transmitting receive GPS module, and the cylindrical electrode is set to the insulation board and pressure-resistant insulating glass
Between, setting metal contact wires one end is connect across the insulation board with the cylindrical electrode, the other end and transmission pressure connect,
Switching device is provided on the metal contact wires；The transmitting terminal takes ferroelectric core, transmitting terminal power module and transmitting end signal
Transmitting receives GPS module and is sequentially connected rear connection switch device controller, the switching device controller and the switching device
Conducting wire connection controls the switching device；
The reception terminal includes that sequentially connected receiving end takes ferroelectric core, receiving end power module and receiving end signal hair
Reception GPS module is penetrated, Rogowski coil is set on the transmission pressure, the receiving end signal transmitting receives GPS module and adjusts
It is connect after reason circuit module connection with the Rogowski coil.
Further, launch terminal described in the utility model and reception terminal are provided with solar panels.
Further, this practical trapezoidal described launch terminal and the shell of reception terminal are aluminum material preparation.
The utility model can On-line sampling system traveling wave transmission path within the scope of monitored transmission line of electricity physical length,
It is influenced caused by distance between shaft tower to avoid arc sag, guarantees standard when to screen of trees or other hidden danger electric discharge point location
Exactness.
Cylindrical electrode described in the utility model is for artificially generating creeping discharge travelling wave current signal；Control unit is for controlling
Whether electrode processed generates discharge signal；Electricity-fetching module component is used for system power supply, and coupling can be used and take electricity+solar powered
Mode；Data reception module is used to receive/send the signal of distal end transmission.
Explanation of nouns: linkage described in the utility model refers to that simulation discharging generator and transmission line of electricity hidden danger are supervised
The linkage between terminal is surveyed, i.e., after hidden danger monitoring terminal monitoring arrives electric discharge event, simulation discharging generator link instead
It answers, generates discharge signal；When hidden danger monitoring terminal does not monitor electric discharge event, simulation discharging generator is failure to actuate.
The specific work process of the utility model: when event of discharging the defects of screen of trees occurs for transmission line of electricity, it is installed on line
The reception terminal of road can acquire electric discharge traveling wave, and survey length device (i.e. launch terminal) online to shaft tower and send a triggering letter
Number, so that the cylindrical electrode of launch terminal changes to the current potential of line conductor (transmission pressure), analog is put along face at this time
Electricity sends a high-frequency impulse, meanwhile, the reception terminal being placed on route can adopt in real time the high frequency traveling wave emitted
Launch terminal can be aligned by collection, system with the GPS time for receiving terminal, calculate creeping discharge by the difference and velocity of wave of time
The actual range that the traveling wave of generation is transmitted on the transmission line；Every two base shaft can be calculated finally by dependency rule and formula
The physical length that traveling wave is transmitted on the transmission line between tower carries out the both-end positioning of traveling wave, more existing meter based on the above basis
It calculates more accurate.
The utility model has the beneficial effects that the utility model can actual range effectively between real-time measurement shaft tower, surveyed
Data volume is measured not by the interference of outside environmental elements, guarantees the accuracy of transmission line of electricity screen of trees and the positioning of other point of discharges.
Detailed description of the invention
Fig. 1 is the utility model linkage type Transmission Lines path length on-line measurement device structural map.
In figure: 1- launch terminal；2- receives terminal；3- cylindrical electrode；4- insulation board；5- pressure resistance insulating glass；601- hair
It penetrates end and takes ferroelectric core；The receiving end 602- takes ferroelectric core；701- transmitting terminal electricity-fetching module；The receiving end 702- electricity-fetching module；801- hair
It penetrates end signal transmitting and receives GPS module；The transmitting of 802- receiving end signal receives GPS module；9- switching device controller；10- is opened
Close device；11- Rogowski coil；12- conditioning circuit module；13- shell；14- solar panels；15- transmission pressure；16- metal connects
Wiring.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
The instant measuring device of linkage type traveling wave path length described in the utility model, including launch terminal 1, reception are eventually
End 2 and transmission pressure 15, the launch terminal 1 and reception terminal 2 are set to the both ends of the transmission pressure 15 and pass through conducting wire
With 15 equipotential link of transmission pressure；
The launch terminal 1 takes ferroelectric core 601, hair including cylindrical electrode 3, insulation board 4, pressure-resistant insulating glass 5, transmitting terminal
It penetrates end power module 701 and transmitting end signal transmitting receives GPS module 801, the cylindrical electrode 3 is set to the insulation board 4
Between pressure-resistant insulating glass 5, setting metal contact wires one end passes through the insulation board 4 and connect with the cylindrical electrode 3, is another
End is connect with transmission pressure 15, and switching device 10 is provided on the metal contact wires；The transmitting terminal takes ferroelectric core 601, hair
It penetrates end power module 701 and transmitting end signal transmitting receives GPS module 801 and is sequentially connected rear connection switch device controller 9, institute
It states switching device controller 9 and is connect through conducting wire (metal contact wires 16) to the switching device 10 control with the switching device 10
System；
The reception terminal 2 includes that sequentially connected receiving end takes ferroelectric core 602, receiving end power module 702 and receives
End signal transmitting receives GPS module 802, and Rogowski coil 11, the receiving end signal transmitting are arranged on the transmission pressure 15
It receives after GPS module 802 is connect with conditioning circuit module 12 and is connect with the Rogowski coil 11.
Further, launch terminal 1 described in the utility model and reception terminal 2 are provided with solar panels 14.
Further, launch terminal 1 described in the utility model and the shell 13 of reception terminal 2 are aluminum material preparation.
Embodiment: the main realization step of the utility model, referring to attached drawing 1, the launch terminal 1 and reception terminal 2 are divided
It is not installed on shaft tower at the substation exit at route both ends (i.e. route head and the tail shaft tower).It is put when the hidden danger such as screen of trees occur for transmission line of electricity
When electric, the Rogowski coil 11 for receiving terminal 2 can acquire electric discharge travelling wave signal, after processing, be emitted by the signal of reception terminal
It receives GPS module 802 and sends a trigger command to launch terminal 1, informing 1 route of launch terminal, there are hidden danger electric discharge events；
At this point, launch terminal 1 generates a creeping discharge traveling wave, route is injected, and record GPS time t at this time0；It is right to receive terminal 2
This creeping discharge signal is acquired, and the GPS time for collecting this signal is recorded as t1；Biography of the traveling wave in overall length route
Defeated time Δ t=t1-t0, at this point, known traveling wave speed v and transmission time Δ t, can acquire transmission range S=Δ t*v；Finally, logical
The actual range that traveling wave is transmitted on the transmission line between two base shaft towers can be acquired by crossing dependency rule, be the traveling wave of hidden danger point of discharge
Both-end positioning is corrected.
The course of work of the utility model (principle) is described in detail below:
1) when route do not occur the hidden danger such as screen of trees electric discharge event when, switching device 10 in an ON state, at this point, by transmitting electricity
Creeping discharge module that conducting wire 15, pressure-resistant insulating glass 5, cylindrical electrode 3 and insulation board 4 are constituted and transmission pressure 15 in etc. it is electric
The state of position, launch terminal 1 do not generate discharge waveform；
2) when route discharges event there are hidden danger such as screens of trees, actual discharge signal can be received by receiving terminal 2, and to hair
It penetrates terminal 1 and sends a signal, the signal transmitting of launch terminal receives GPS module 801 and receives this signal at this time, i.e., to switch
Device controller 9 sends an order, so that switching device controller sends the instruction cut-off to switching device 10.At this point, column
Shape electrode 3(discharge module) and transmission pressure 15 between there are certain potential differences, i.e., can generate creeping discharge；
3) this device is powered by coil coupling energy taking (transmitting terminal takes ferroelectric core 601 or receiving end to take ferroelectric core 602), preferably
Solar energy (solar panels 14)+coil coupling energy taking can be used in mode, and (transmitting terminal takes ferroelectric core 601 or receiving end to take ferroelectric core
602) compound take can mode power, directly loaded on single-phase transmission pressure；
4) transmitting/reception terminal shell 13 is made using aluminum, passes through conducting wire and conducting wire equipotential link；Because of metal shell
If there are biggish voltage differences between shell and conducting wire, can generate electric discharge not with conducting wire equipotential link, route and end are damaged
End, equipotential link can avoid electric discharge；
5) pressure-resistant insulating glass 5, insulation board 4 are high pressure resistant insulation material, play insulation filling and fixed module,
It, need to be using glass or ceramic material because the electric discharge between cylindrical electrode 3 and conducting wire can pass through along the surface of pressure-resistant insulating glass 5
Matter；The materials such as rubber can be used in insulation board 4, and punching is facilitated to thread；
6) measuring device described in the utility model is in the presence of discharge off event, in a dormant state, to reduce complete machine function
Consumption；
7) the utility model can measure the real-time total distance that electric discharge traveling wave is propagated on the transmission line, then pass through a set pattern
Then, the distance of traveling wave between every two base shaft tower can be acquired, this rule are as follows:
Transmission line of electricity span is fix information, can be inquired from route O&M unit, if inquiry span information is array
(L1, L2, L3, L4..., Ln), it is s=Δ t*v by the surveyed traveling wave physical length of the utility model, then is used for point of discharge both-end
Traveling wave distance can be corrected between the shaft tower of positioning are as follows:
Lis= Li*[( L1+L2+L3+L4+…+Ln)/s], i=1,2,3,4 ..., n
L in formulaisFor instantaneous transmission distance of the traveling wave between any two base phases neighbour's shaft tower after amendment, unit m；LiFor this two
The fixed gear distance degree of base phase neighbour's shaft tower, unit m；S is the total length that traveling wave is transmitted on the transmission line, unit m.
The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, also not limiting the utility model is only the specific embodiment.Obviously, according to this theory
The content of bright book can make many modifications and variations, as long as having used scheme described above, should all fall into the guarantor of the utility model
Protect range.
Claims (3)
1. a kind of instant measuring device of linkage type traveling wave path length, including launch terminal (1), receive it is terminal (2) and defeated
Electric lead (15), which is characterized in that the launch terminal (1) and reception terminal (2) are set to the two of the transmission pressure (15)
It holds and passes through conducting wire and the transmission pressure (15) equipotential link；
The launch terminal (1) includes that cylindrical electrode (3), insulation board (4), pressure-resistant insulating glass (5), transmitting terminal take ferroelectric core
(601), transmitting terminal power module (701) and transmitting end signal transmitting receive GPS module (801), cylindrical electrode (3) setting
Between the insulation board (4) and pressure-resistant insulating glass (5), setting metal contact wires one end passes through the insulation board (4) and institute
It states cylindrical electrode (3) connection, the other end and transmission pressure (15) to connect, is provided with switching device on the metal contact wires
(10)；The transmitting terminal takes ferroelectric core (601), transmitting terminal power module (701) and transmitting end signal transmitting to receive GPS module
(801) it is sequentially connected rear connection switch device controller (9), the switching device controller (9) and the switching device (10)
Conducting wire connection controls the switching device (10)；
The reception terminal (2) includes that sequentially connected receiving end takes ferroelectric core (602), receiving end power module (702) and connects
Receiver signal transmitting receives GPS module (802), Rogowski coil (11) is arranged on the transmission pressure (15), the receiving end
Signal transmitting is received after GPS module (802) are connect with conditioning circuit module (12) and is connect with the Rogowski coil (11).
2. the instant measuring device of linkage type traveling wave path length according to claim 1, it is characterized in that, the hair
It penetrates terminal (1) and receives terminal (2) and be provided with solar panels (14).
3. the instant measuring device of linkage type traveling wave path length according to claim 1 or claim 2, it is characterized in that, institute
It states launch terminal (1) and receives the shell (13) of terminal (2) as aluminum material preparation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821928934.1U CN209132367U (en) | 2018-11-22 | 2018-11-22 | The instant measuring device of linkage type traveling wave path length |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821928934.1U CN209132367U (en) | 2018-11-22 | 2018-11-22 | The instant measuring device of linkage type traveling wave path length |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209132367U true CN209132367U (en) | 2019-07-19 |
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ID=67246296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201821928934.1U Active CN209132367U (en) | 2018-11-22 | 2018-11-22 | The instant measuring device of linkage type traveling wave path length |
Country Status (1)
| Country | Link |
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| CN (1) | CN209132367U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110726899A (en) * | 2019-10-22 | 2020-01-24 | 广西电网有限责任公司电力科学研究院 | Power transmission line span checking method |
| CN111999722A (en) * | 2020-08-25 | 2020-11-27 | 广东电网有限责任公司广州供电局 | Portable cable length measuring device and method |
-
2018
- 2018-11-22 CN CN201821928934.1U patent/CN209132367U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110726899A (en) * | 2019-10-22 | 2020-01-24 | 广西电网有限责任公司电力科学研究院 | Power transmission line span checking method |
| CN110726899B (en) * | 2019-10-22 | 2021-08-24 | 广西电网有限责任公司电力科学研究院 | Power transmission line span checking method |
| CN111999722A (en) * | 2020-08-25 | 2020-11-27 | 广东电网有限责任公司广州供电局 | Portable cable length measuring device and method |
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