Embodiment
For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings
State.Preferred embodiment of the present utility model is given in accompanying drawing.But the utility model can come in fact in many different forms
It is existing, however it is not limited to embodiment described herein.On the contrary, the purpose for providing these embodiments is made to public affairs of the present utility model
Open content more thorough and comprehensive.
It should be noted that when an element is considered as " connection " another element, it can be directly to separately
One element and it is in combination be integrated, or may be simultaneously present centering elements.Term as used herein " installation ", " one
End ", " other end " and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to technology of the present utility model
The implication that the technical staff in domain is generally understood that is identical.It is simply in term used in the description of the present utility model herein
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein " and/or " include
The arbitrary and all combination of one or more related Listed Items.
The utility model overhead power transmission conducting wire capacity characteristic monitoring platform embodiment 1:
In order to solve the problems, such as that the measuring technology of traditional novel conductive wire is not applied for the transmission line of electricity in actual motion, this
Utility model provides a kind of overhead power transmission conducting wire capacity characteristic monitoring platform embodiment 1;Fig. 1 is the utility model overhead power transmission
The structural representation of wire capacity characteristic monitoring platform embodiment 1;As shown in figure 1, system main website 120 and connection can be included
The microclimate test equipment 110 of system main website 120;Also include some groups of test loops being erected between electric power line pole tower;
Test loop includes the first 1 and second wire 2 to be measured of wire to be measured of connection strong current generator, is separately mounted to
First wire 1 to be measured, the data acquisition equipment 130 on the second wire 2 to be measured and treated installed in the first wire to be measured or second
The testing current equipment 140 surveyed on wire;Data acquisition equipment 130, testing current equipment 140 connect with system main website 120 respectively
Connect;
The first end of first wire 1 to be measured connects the first end of the second wire 2 to be measured by drainage thread;Strong current generator
Output end pass through copper bar respectively and connect the second end of the first wire 1 to be measured, the second end of the second wire 2 to be measured.
It should be noted that above-mentioned first end refers to the one end of wire to be measured away from strong current generator, the second end refers to
Be wire to be measured close to one end of strong current generator.
Specifically, monitoring platform of the present utility model builds actual track section using true type tower and carries out overhead transmission line sag
The monitoring of the capacity characteristic such as characteristic and migration point temperature, i.e., under transmission line simulation practical operation situation, test its sag
With the relation of temperature.Monitoring platform is powered, led to by capacity 1250kVA, three-phase 380V/1800A power 50Hz power supply
Cross the service cable being layed in cable duct and realize power taking of the strong current generator to power supply, strong current generator it is specified
Exchange output and nominal DC output are respectively 3kA, and the output end of strong current generator is connected to tested wire by 2 copper bars
On.Two wires to be measured are assumed on true type tower, a set of testing current equipment is installed close to one end of true type tower in a wire
For the current value in measuring loop.
The specific operation principle of the utility model is:The environment ginseng of microclimate test equipment collection transmission line of electricity actual motion
Number, and ambient parameter is transferred to system main website;System main website obtains controlling strong current generator to test according to ambient parameter
The current-carrying capacity reference value of loop loading current reference;In strong current generator loading current, testing current equipment gathers in real time
The current data of test loop, and current data is transferred to system main website;System main website is big according to current data real time correction
The current value of current feedback circuit actual loaded;System main website receives the collection number for the wire to be measured that data acquisition equipment measures in real time
According to, and classification processing is carried out to gathered data, obtain the capacity characteristic data of wire to be measured;Wherein, gathered data includes to be measured
Temperature data, sag data and the strain data of wire;Capacity characteristic data include temperature sag relation curve and electric current arc
Hang down relation curve.
Preferably, the rated power supply of strong current generator is two-phase two wires 380V ± 5%, electric current 1800A, frequency 50Hz ±
2Hz;Specified exchange output load current 3KA, it is allowed to 1.1 times of overload capacity, AC load voltage 180V, pressure regulator scope
10%-105%, minimum resolution 2V, buck time are less than 60 seconds.Nominal DC output is load current 3KA, it is allowed to is overloaded
1.1 times, DC load voltage 180V of ability, pressure regulator scope 10%-105%, minimum resolution 2V, the buck time is less than 60
Second.As platform wire test loop≤460m, loop resistance≤0.06 Ω, 150 DEG C≤30min of wire temperature rise.
Further, the output end of current feedback circuit is 10*100mm by 2 × 30 meters specifications2Copper bar is connected to be measured
On wire, copper bar section is big, and heat dissipation characteristics are good, and cost is lower than cable, and copper bar good mechanical property is easily installed and and branch road
Connection.
In Fig. 1, for other two groups of test loops, strong current generator corresponding to every group of test loop is not drawn specifically
Etc. equipment (i.e. " ... " in Fig. 1), those skilled in the art can connect clearly in practical operation according to the present invention
Corresponding equipment, carry out the monitoring of capacity characteristic.
In order to which the technical solution of the utility model is further described, spy illustrates this practicality by taking one group of test loop as an example
New specific monitoring process, Fig. 2 are that the structure of the utility model overhead power transmission conducting wire capacity characteristic monitoring platform embodiment 2 is shown
It is intended to;As shown in Fig. 2 the quantity of test loop is one group.The utility model overhead power transmission conducting wire capacity characteristic monitoring platform is real
Strain detection testing device 101, strain detection testing device 201, wire 1 to be measured, wire to be measured 2, sag test device can be included by applying example 2
201st, sag test device 202, temperature testing device 103, temperature testing device 203, testing current equipment 204, high current hair
Raw device is connected to the copper bar 3 of wire, strong current generator 4, from supply transformer power taking to strong current generator device cable 5,
Power supply 6.
Preferably, drainage thread is JL/LB1A-630/45 steel-aluminum wires, and shaft tower is DJ-300 type 35kV shaft towers.
Capacity 1250kVA (kilovolt-ampere), three-phase 380V/1800A frequencies 50Hz (hertz) power supply electricity are used in this example
Source is powered to experiment porch, then passes through 2 × 3 260 meters of the cross-linking polyethylene insulated fire resistant electric power of ZA-YJV 1 × 185
Cable, realize from supply transformer power taking to strong current generator, cable laying is in the existing cable duct in place.Cable is another
Side connects this strong current generator.The output end of strong current generator is connected on wire to be measured by 2 copper bars, to be measured to lead
Line requires to set up onto 35kV shaft tower according to the erection of standard, and monitoring platform of the present utility model can carry out two kinds simultaneously not
Research with wire capacity characteristic is compared.
Fig. 3 is the structural representation of system main website in the utility model overhead power transmission conducting wire capacity characteristic monitoring platform.Such as
Shown in Fig. 3, in a specific embodiment, system main website include be sequentially connected communication server, Network Physical Separator, application
Server and storage server;
The FPDP of communication server connects microclimate test equipment, data acquisition equipment, testing current equipment respectively
And strong current generator.
In a specific embodiment, system main website also includes applications client, the WEB for connecting application server respectively
Server and management work station.
Specifically, communication server is used for the gathered data of each test device transmission of real-time reception;And when signal passes through
After long-distance transmissions, the impedance of circuit will be such that signal constantly weakens, and when causing network interruption, Network Physical Separator can pass in signal
Filtered during defeated and (eliminate interference) and amplified, so as to greatly enhance the coverage of network and signal transmission distance.Should
It is used to carry out classification processing to gathered data with server, obtains the capacity characteristic data of wire to be measured.
In a specific embodiment, testing current equipment includes current transformer and connects the of current transformer
One data link;
First data transmission device is also connected with communication server.
In a specific embodiment, first data transmission device is radio transmission antenna.
Specifically, during the monitoring platform that the operation of actual track section can be simulated in structure, testing current equipment
On the one hand the problem of output current that strong current generator can be overcome to show is not accurate enough, another aspect testing current equipment is adopted
The current data of collection can be instructed during loading current, the accurate current load amount for controlling strong current generator, while
After current load terminates, the theoretical value that conducting wire sag can be calculated according to current data root refers to as experiment, confirms this appearance
Whether the result of flow characteristic test is accurate.Based on above scheme so that the utility model is surveyed by strong current generator and electric current
Try accurate control of the equipment realization under the electric current of wide variation to conductor temperature.
Testing current equipment can be made up of (as shown in Fig. 2 it is bulbec that the left side, which is mother bulb the right) composite ball, and composite ball is all
Working power is obtained from monitored circuit by way of sensing, is used to gather wire in real time equipped with current transformer in mother bulb
In current data, current data is delivered to bulbec by the connecting line between mother bulb and bulbec, and bulbec passes through current signal
It is loaded into after processing in WiFi signal and receives (data communication server that communication server is system main website) for communication server,
Testing current equipment can in real time in measure traverse line electric current, due to being directly erected on power transmission line by the small measurement of external interference more
Add accurately, iron core magnetic conductivity height is not easy the high current that saturation can be to circulate in accurate measurement wire.
Specifically, testing current equipment (composite ball) can effectively monitor the electric current to be circulated in wire, and composite ball passes through
The mode of sensing obtains working power from monitored circuit, is used to gather in wire in real time equipped with current transformer in mother bulb
Current data, data acquiring frequency are defaulted as 5 minutes points, frequency acquisition also can sets itself as needed, current data
Bulbec is delivered to by the connecting line between mother bulb and bulbec, bulbec is loaded into after treatment by next current signal is transmitted
The communication server supplied in WiFi signal in system main website receives.Composite ball obtains work using induction mode from monitored circuit
Make power supply, it is non-maintaining, it is reliable.
The installation instructions of testing current equipment:Before composite ball is fixed on wire, first with wire brush or coarse sandpaper etc.
Instrument, installation position is cleared up, especially built-in ground wire and conductive contact position.Testing current equipment is by two balls
The composite ball of body composition, connecting line (i.e. communication cable is used for transmitting what signal used) is connected bottom interface connection with bulbec.
Mother bulb is first served into wire.Mother bulb device spheroid lid is opened, upper half iron core is first extracted, sticks wire, then the upper half iron by extraction
Core is installed onto relevant position, and both sides rubber ring is blocked into wire (pays attention to:Iron core must be seated, and the interior ground wire on rubber ring must
It must be stuck in rubber ring, it is ensured that good with conductive contact).Cover spheroid lid, prepare by hold-doun nut (anticorona one, nut,
Hold-doun nut two, spring washer one, plain washer one) and two hose clamps be arranged on rubber sleeve, fixed rubber cover screwing
It is fixed.Bulbec is served wire by mother bulb after installing, and bulbec is installed on the left of mother bulb with the above method, notices that bulbec will be installed
On the left of mother bulb so that the antenna of mother bulb is outwardly.By bulbec bottom connecting line and already installed mother bulb bottom after installation
Portion is connected, and fixation must be tied up with transmission pressure by connecting rear connecting line.
Further, testing current equipment can use on high-tension side using the current transformer sensing of electromagnetic induction principle
Electric current obtains electric energy;Or electric energy is obtained by other high voltage induction electricity getting devices, wherein, high voltage induction electricity getting device can profit
Electric energy is obtained with the electromagnetic energy sensed around ultra-high-tension power transmission line, stable electricity is provided to install nigh electrical equipment
Source.The power supply steady in a long-term of load equipment is can guarantee that, is suitable as on-line checking on high voltage electricity transmission conductive wire, monitoring, inspection, antitheft
Deng the power supplier of electrical equipment.
In addition, testing current equipment can also realize stable confession by intelligent power controller in wider current range
Electricity.
In a specific embodiment, data acquisition equipment includes strain detection testing device, sag test device and temperature
Test device;
Sag test device includes the first high voltage induction electricity getting device, and the laser ranging of the first high voltage induction electricity getting device of connection passes
Sensor, the second data link;Second data link connecting communication server;
Strain detection testing device includes the second high voltage induction electricity getting device, and the grating fibers of the second high voltage induction electricity getting device of connection pass
Sensor, the 3rd data link;3rd data link connecting communication server;
Temperature testing device includes the 3rd high voltage induction electricity getting device, connects the RTD of the 3rd high voltage induction electricity getting device
Temperature sensor, the 4th data link;4th data link connecting communication server.
In a specific embodiment, the first high voltage induction electricity getting device, the second high voltage induction electricity getting device and the 3rd high pressure
It is current transformer to sense electricity getting device;Second data link, the 3rd data link and the 4th data link are nothing
Line transmission antenna.
Specifically, as shown in Fig. 2 strain detection testing device 101,201, sag test device 102,202, temperature test dress
Modular totally-enclosed damascene structures can be used by putting 103, current testing device 204, be easily installed, and device possesses lightning protection, prevented
Rust, anti-corrosion measure, the needs of open field test can be met by adapting to ocean province weather, and the installation weight used in this example is about
2.8kg (kilogram), assembly dia are about 190mm (millimeter).Each test device can use induction mode from monitored circuit
Working power is obtained, it is non-maintaining, it is reliable., can be pre- by setting in order to keep not got too close between test device
If constrain the installation site of each test device apart from (being more than or equal to the diameter that 190mm is a device spheroid).
Further, compare to realize while carry out the research of two kinds of different conductor capacity characteristics.The utility model exists
Wire installs strain detection testing device 101,201 close to one end of shaft tower, is used for inside device using fiber bragg grating sensor real-time
The strain that two wires of monitoring occur, strain monitoring data are loaded into WiFi signal to be received for communication server.In wire
Span center installation sag test device 102,202, device uses the measuring principle of tilt-angle method, is measured in real time by laser measurement
Wire distance to the ground, it is ensured that enough measurement ranges and precision, the conducting wire sag data monitored are loaded into WiFi signal
It is middle to be received for communication server.Temperature testing device 103,203 is installed in the opposite side close to shaft tower, device is passed from RTD
Sensor meets the measurement accuracy in measurement range, and the conductor temperature data monitored are loaded into WiFi signal supplies Communications service
Device receives.
Further, temperature sensor using platinum resistance temperature sensor can accurate measure traverse line real time temperature,
The conductor temperature of device measures maximum virtual value and should be greater than 180 DEG C;Sag monitoring device uses the range measurement principle of tilt-angle method, passes through
The real-time measure traverse line distance to the ground of laser range sensor, it ensure that device enough measurement range and precision.Strain testing fills
Put, ranging essence can be carried out by laser with the length between two terminals being fixed on a section lead in real-time measurement apparatus
Exactness can reach micron level, and measuring speed can reflect the strain of wire in real time soon.
Data acquisition equipment installation instructions:Strain detection testing device can effectively monitor the strain of wire in real time, in device
Portion uses state-of-the art fiber bragg grating sensor, and whole device is in light weight, anti-electromagnetic interference capability is strong, anticorrosion and resistance to height
Temperature, device are installed to the normal operation that circuit is not interfered with transmission line of electricity.Before monitoring device is fixed on wire, first use
The instrument such as wire brush or coarse sandpaper, installation position is cleared up, and especially coil and conductive contact position is asked.Open spheroid
Lid, upper half iron core is first extracted, then spheroid is fixed on below wire with mounting bracket, to facilitate the peace of strain transducer clip
Dress.By the clip of wire strain transducer, clamping is installed on wire, and mounting bracket is removed again after installing clip, by device
Stick wire.The upper half iron core of extraction is installed onto relevant position, allows both sides rubber ring to block wire and (pays attention to:Iron core must be inserted
Tightly, the interior ground wire on rubber ring must be stuck in rubber ring, it is ensured that good with conductive contact).Spheroid lid is covered, preparing will be solid
Determining nut, (anticorona one, nut, hold-doun nut two, spring washer one, one and two hose clamps of plain washer are arranged on rubber
On gum cover, fixed rubber sleeve) tighten fixation.
Sag test device can effectively monitor the sag of wire, and device is by laser measurement, and real-time measure traverse line is over the ground
Distance, using the measuring principle of tilt-angle method, it ensure that enough measurement range and precision.Device by current transformer directly from
Power taking on wire, by intelligent power controller in comparatively wide current range stable power-supplying.Before device installation first
With instruments such as wire brush or coarse sandpapers, installation position is cleared up, especially coil and conductive contact position.Open spheroid
Lid, upper half iron core is first extracted, then spheroid is fixed on below wire with mounting bracket, to facilitate the installation of clip.Install card
Mounting bracket is removed after hoop again, device is sticked into wire.The upper half iron core of extraction is installed onto relevant position, allows both sides rubber ring
Wire is blocked (to pay attention to:Iron core must be seated, and the interior ground wire on rubber ring must be stuck in rubber ring, it is ensured that with conductive contact
Well).Spheroid lid is covered, is prepared hold-doun nut (anticorona one, nut, hold-doun nut two, spring washer one, plain cushion
One and two hose clamps of circle are arranged on rubber sleeve, fixed rubber sleeve) tighten fixation.Ensure to fix after device laser probe with
Ground is vertical.
Temperature testing device can effectively monitor the real time temperature of wire, and device meets to survey from platinum sensor
Measurement accuracy in the range of amount, to external temperature sensor and signal wire, by shielding measure and default fixed form, ensure
Do not released in operation.Device obtains working power using induction mode from monitored circuit, non-maintaining, reliable.Device
Data acquiring frequency is defaulted as 5 minutes points, and frequency acquisition can sets itself as needed.Device be fixed to wire on it
Before, first with instruments such as wire brush or coarse sandpapers, wire installation position is cleared up, especially temperature probe and conductive contact
Local and built-in ground wire and conductive contact position.Spheroid lid is opened, first extracts upper half iron core, then consolidated spheroid with mounting bracket
It is scheduled on below wire, to facilitate the installation of temperature transducer clip.By the clip of wire temperature transducer, clamping is pacified on wire
Install, mounting bracket is removed again after installing clip, device is sticked into wire.The upper half iron core of extraction is installed onto corresponding positions
Put, allow both sides rubber ring to block wire and (pay attention to:Iron core must be seated, and the interior ground wire on rubber ring must be stuck in rubber ring,
Ensure good with conductive contact).Spheroid lid is covered, is prepared hold-doun nut (anticorona one, nut, hold-doun nut two, bullet
One, spring packing ring, plain washer one) and two hose clamps be arranged on rubber sleeve, fixed rubber cover screwing is fixed.
The utility model overhead power transmission conducting wire capacity characteristic monitoring platform, prison is built using the true type tower (i.e. shaft tower) of big span
Platform is surveyed, actual track section (i.e. under transmission line of electricity practical operation situation) can be simulated by the monitoring platform and studied aerial
Line conductor capacity characteristic;By the utility model can with conducting wire sag characteristic not of the same race in the multigroup test loop of test and comparison with
And migration point temperature.The installation data collecting device on wire to be measured, gathered data can be transferred to by data acquisition equipment is
The processing of system main website;It is right under the electric current of wide variation that the utility model is realized by strong current generator and testing current equipment
The accurate control of conductor temperature, suitable for the monitoring of various overhead line capacity characteristics.
Each technical characteristic of above example can be combined arbitrarily, to make description succinct, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, lance is not present in the combination of these technical characteristics
Shield, all it is considered to be the scope of this specification record.Above example only expresses several embodiments of the present utility model,
Its description is more specific and detailed, but therefore can not be interpreted as the limitation to utility model patent scope.It should be understood that
It is that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some
Modification and improvement, these belong to the scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be with institute
Attached claim is defined.