CN107086612A - The energy supplying system of the on-line monitoring equipment of energy is taken based on ultra-high-tension power transmission line wire jumper - Google Patents
The energy supplying system of the on-line monitoring equipment of energy is taken based on ultra-high-tension power transmission line wire jumper Download PDFInfo
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- CN107086612A CN107086612A CN201710474732.8A CN201710474732A CN107086612A CN 107086612 A CN107086612 A CN 107086612A CN 201710474732 A CN201710474732 A CN 201710474732A CN 107086612 A CN107086612 A CN 107086612A
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- H02J5/005—
Abstract
The embodiment of the invention discloses it is a kind of based on ultra-high-tension power transmission line wire jumper take can on-line monitoring equipment energy supplying system, it is not enough, easy by the technical problem that factor is influenceed at random such as weather for the power supply reliability present in the energy supply method of the on-line monitoring equipment on ultra-high-tension power transmission line in the prior art for solving.The embodiment of the present invention includes：CT taking energy coils, electrical energy transformer, transmitting coil resonator, receiving coil resonator, rectifier, rechargeable battery, on-line monitoring equipment；CT taking energy coils are placed on transmission line of electricity, and CT taking energy coils are sequentially connected with electrical energy transformer, transmitting coil resonator, and transmitting coil resonator level is fixedly installed on above the wire jumper sleeve pipe of transmission line of electricity；Receiving coil resonator is connected with the sensing of transmitting coil resonator, for receiving the high-frequency energy that transmitting coil resonator is transmitted into air dielectric；Receiving coil resonator is also sequentially connected with rectifier, rechargeable battery, on-line monitoring equipment.
Description
Technical field
Jumped the present invention relates to ultra-high-tension power transmission line on-line monitoring technique field, more particularly to a kind of ultra-high-tension power transmission line that is based on
Line takes the energy supplying system of the on-line monitoring equipment of energy.
Background technology
Geographically span is big for the transmission line of electricity of China, has a very wide distribution, and ground often severe by some natural conditions
Area, to ensure the operation safety of transmission line of electricity, it is desirable to have personnel periodically carry out inspection to circuit.With the development of technology,
On-line monitoring equipment is widely applied in the field, saves substantial amounts of manpower and materials, by ultra-high-tension power transmission line in itself
Ambient influnence and cost limitation, around ultra-high-tension power transmission line, it is impossible to use transformer as usual voltage transformation again
To enter horizontal high voltage to the conversion of low pressure, therefore, the application of the power supply unit civil power on transmission line of electricity is restricted, and on-line monitoring is set
The standby lasting reliable power supply problem of itself, which never has, obtains very adequate solution.At present, in actual applications, received in energy
It is mostly that the energy in nature is collected using the form of solar energy or wind energy to collect end, but this kind of mode is easily by weather etc.
The influence of random factor, in the case where illumination or wind-force are weaker, the finite energy being collected into, power output is changed greatly,
Therefore in loading nose, configuration energy-storage battery is required to as supplement power supply, to realize the continued power to load, but electric power storage
The discharge and recharge number of times in pond is limited, and, it is necessary to regularly replace, maintenance cost is high, and in the case of extreme weather and long-term wet weather, electricity
Can not timely it be supplemented after exhausting, it will the normal work of influence on-Line Monitor Device.
Obviously, the shortcoming in the prior art for the energy supply of the on-line monitoring equipment on ultra-high-tension power transmission line is mainly power supply
Reliability is not enough, in power supply distance, output power and efficiency, the Stability and dependability of power supply, is deposited in terms of power supply cost
Certain the problem of.
The content of the invention
The embodiment of the invention discloses it is a kind of based on ultra-high-tension power transmission line wire jumper take can on-line monitoring equipment energy supply system
System, in the prior art can for the power supply present in the energy supply method of the on-line monitoring equipment on ultra-high-tension power transmission line for solution
It is not enough, easy by the technical problem that factor is influenceed at random such as weather by property.
The embodiments of the invention provide it is a kind of based on ultra-high-tension power transmission line wire jumper take can on-line monitoring equipment energy supply system
System, including：
CT taking energy coils, electrical energy transformer, transmitting coil resonator, receiving coil resonator, rectifier, chargeable electricity
Pond, on-line monitoring equipment；
CT taking energy coils are placed on transmission line of electricity, and CT taking energy coils connect successively with electrical energy transformer, transmitting coil resonator
Connect, transmitting coil resonator level is fixedly installed on above the wire jumper sleeve pipe of transmission line of electricity；
Receiving coil resonator is connected with the sensing of transmitting coil resonator, and sky is transmitted into for receiving transmitting coil resonator
High-frequency energy in gas medium；
Receiving coil resonator is also sequentially connected with rectifier, rechargeable battery, on-line monitoring equipment.
Alternatively, electrical energy transformer is AC/AC high-frequency electrical energy converters, and rectifier is AC/DC rectifiers.
Alternatively, receiving coil resonator suspension is fixed on shaft tower pylon.
Alternatively, receiving coil resonator is relative to front with transmitting coil resonator axis.
Alternatively, transmitting coil resonator is identical with the vibration frequency of receiving coil resonator.
Alternatively, transmitting coil resonator is respectively connected with adaptive frequency controller with receiving coil resonator.
Alternatively, transmitting coil resonator and receiving coil resonator design are drainage thread shape bonded to each other.
Alternatively, transmitting coil resonator is designed as with receiving coil resonator in the way of snail or vertical spin
The shape of rectangle or circle.
Alternatively, electrical energy transformer is fixed on above the wire jumper sleeve pipe of transmission line of electricity.
Alternatively, rectifier is fixedly installed on shaft tower pylon.
As can be seen from the above technical solutions, the embodiment of the present invention has advantages below：
The embodiments of the invention provide it is a kind of based on ultra-high-tension power transmission line wire jumper take can on-line monitoring equipment energy supply system
System, including：CT taking energy coils, electrical energy transformer, transmitting coil resonator, receiving coil resonator, rectifier, chargeable electricity
Pond, on-line monitoring equipment；CT taking energy coils are placed on transmission line of electricity, CT taking energy coils and electrical energy transformer, transmitting coil resonance
Device is sequentially connected, and transmitting coil resonator level is fixedly installed on above the wire jumper sleeve pipe of transmission line of electricity；Receiving coil resonator
It is connected with the sensing of transmitting coil resonator, for receiving the high-frequency energy that transmitting coil resonator is transmitted into air dielectric；Connect
Coil resonator is received also to be sequentially connected with rectifier, rechargeable battery, on-line monitoring equipment.By the way that CT is taken into energy in the present embodiment
Coil, which is placed on transmission line of electricity, to be used for the energy-sensitive in high voltage transmission line to CT bis- times in the way of closely electromagnetic induction
Side, and carry out by the way of the magnetic resonance coupling that both transmitting coil resonator and receiving coil resonator are combined the biography of electric energy
It is defeated, finally electric energy is transmitted into reliable and stable rechargeable battery and stored, and on-line monitoring equipment is energized, make
General line requirements can be met in terms of power supply distance by obtaining, and the mode of magnetic resonance coupling can reduce the external spoke of energy
Penetrate, improve the efficiency of transmission of wireless energy, also, because the power for monitoring equipment on-line is not high, be transferred to through magnetic resonance coupling
The power of load can meet requirement of the on-line monitoring equipment to power；In addition, in whole wireless energy transfer system, though
High pressure power taking, but when bus current is smaller, the energy got may be not enough to transmit enough power, and standby fill
Battery can play its effect and be energized, compared to new energy, and the discharge and recharge frequency of rechargeable battery is substantially reduced, and is used
Life, whole energy wireless transmission unit can carry out module encapsulation, be influenceed small by changeable climatic environment around, power supply can
It is high by stability, in addition, taking energy and coil mounting means to be provided to the practical engineering application of whole system based on wire jumper
Transmitting coil resonator is fixed on jump by the method being more applicable, the features such as make use of cabling and position and the space of wire jumper
The top of thread casing, out of doors under the conditions of, the mode of horizontal positioned is more reliable and more stable, and is not take up space resources, simultaneously
Facilitate stationary electric converter, the pull bar by being connected with wire jumper makes entirely to pull down part-structure and load-bearing is non-come load-bearing
Often stable, the scalability of coil dimension and the reliability and stability of installation and convenience can make the application of whole system
Extended, possibility is provided from traditional 110KV, 220KV circuit to the application of higher voltage grade circuit for it；Solve
It is not enough, easy for the power supply reliability present in the energy supply method of the on-line monitoring equipment on ultra-high-tension power transmission line in the prior art
The technical problem influenceed by the random factor such as weather.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 be provide in the embodiment of the present invention it is a kind of based on ultra-high-tension power transmission line wire jumper take can on-line monitoring equipment
The structural representation of energy supplying system；
Fig. 2 be provide in the embodiment of the present invention it is a kind of based on ultra-high-tension power transmission line wire jumper take can on-line monitoring equipment
Energy supplying system is in the scheme of installation on high pressure shaft tower；
Fig. 3 is the wire jumper aluminium casings top view that provides in the embodiment of the present invention；
Fig. 4 is the top view of the coil resonator provided in the embodiment of the present invention.
Illustrate：1st, CT taking energy coils, 2, electrical energy transformer, 3, transmitting coil fixing device, 4, transmitting coil resonance
Device, 5, receiving coil resonator, 6, rectifier, 7, rechargeable battery, 8 on-line monitoring equipment, 9, receiving coil fixing device.
Embodiment
The embodiment of the invention discloses it is a kind of based on ultra-high-tension power transmission line wire jumper take can on-line monitoring equipment energy supply system
System, in the prior art can for the power supply present in the energy supply method of the on-line monitoring equipment on ultra-high-tension power transmission line for solution
It is not enough, easy by the technical problem that factor is influenceed at random such as weather by property.
To enable goal of the invention, feature, the advantage of the present invention more obvious and understandable, below in conjunction with the present invention
Accompanying drawing in embodiment, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that disclosed below
Embodiment be only a part of embodiment of the invention, and not all embodiment.Based on the embodiment in the present invention, this area
All other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, belongs to protection of the present invention
Scope.
Referring to Fig. 1, provided in the embodiment of the present invention it is a kind of based on ultra-high-tension power transmission line wire jumper take can on-line monitoring
One embodiment of the energy supplying system of equipment includes：
CT taking energy coils 1, electrical energy transformer 2, transmitting coil resonator 4, receiving coil resonator 5, rectifier 6, it can fill
Battery 7, on-line monitoring equipment 8；
CT taking energy coils 1 are placed on transmission line of electricity, CT taking energy coils 1 and electrical energy transformer 2, transmitting coil resonator 4 according to
Secondary connection, the level of transmitting coil resonator 4 is fixedly installed on above the wire jumper sleeve pipe of transmission line of electricity；
Receiving coil resonator 5 is connected with the sensing of transmitting coil resonator 4, is launched for receiving transmitting coil resonator 4
High-frequency energy into air dielectric；
Receiving coil resonator 5 is also sequentially connected with rectifier 6, rechargeable battery 7, on-line monitoring equipment 8.
Further, electrical energy transformer 2 is AC/AC high-frequency electrical energy converters, and rectifier 6 is AC/DC rectifiers.
Further, the suspension of receiving coil resonator 5 is fixed on shaft tower pylon, and receiving coil resonator 5 and transmitting
Axially front is relative for coil resonator 4.
Further, transmitting coil resonator 4 is identical with the vibration frequency of receiving coil resonator 5.
Further, transmitting coil resonator 4 is respectively connected with adaptive frequency controller with receiving coil resonator 5.
Further, transmitting coil resonator 4 is designed as drainage thread shape bonded to each other with receiving coil resonator 5.
Further, transmitting coil resonator 4 is set with receiving coil resonator 5 in the way of snail or vertical spin
It is calculated as the shape of rectangle or circle.
Further, electrical energy transformer 2 is fixed on above the wire jumper sleeve pipe of transmission line of electricity.
Further, rectifier 6 is fixedly installed on shaft tower pylon.
Above be for it is provided in an embodiment of the present invention it is a kind of based on ultra-high-tension power transmission line wire jumper take can on-line monitoring set
The detailed description of the structure of standby energy supplying system, is implemented below with reference to specific application scenarios with specific example to the present invention
Example provide it is a kind of based on ultra-high-tension power transmission line wire jumper take can on-line monitoring equipment energy supplying system principle and install apply
Scene is described in detail.
Nearly ten years, the middle development apart from magnetic resonance coupling wireless power transmission technology is very rapid, theoretical and practice card
Bright its can realize the energy transmission of the mid power in the range of meter level.Compared with traditional power supply mode, radio energy is passed
It is defeated departing from guiding function of the wire to electric current, by electromagnetic induction and high-frequency circuit, directly by energy from power end
It is sent to load to use, the mode of this energy local use can be significantly reduced the power supply cost on high voltage transmission line, simultaneously
The reliability that on-line monitoring equipment is powered can be improved.And on-line monitoring equipment its insulation distance on high voltage transmission line is usually rice
Level, power be tens milliwatts between tens of watts, therefore, the mode of wireless power transmission can realize the supply of energy in theory
It is required that.
The basic structure of wireless power transmission is mainly made up of three parts, i.e. electric energy input block, electric energy transmission unit,
Electric energy output unit.Its operation principle is as follows：CT taking energy coils 1 are enclosed on transmission line of electricity first, with closely electromagnetic induction
Mode by the energy-sensitive in high voltage transmission line to CT secondary sides, be used as energy source；The energy is become by an electric energy again
Parallel operation 2, can be specifically AC/AC high-frequency electrical energy converters, the convert alternating current that secondary side is induced is into high-frequency
Alternating current, then again a transmitting coil resonator 4 by the energy of high frequency with magnetic field by way of be transmitted into air dielectric
It is central；In receiving terminal, received by the receiving coil resonator 5 of one and the same frequency of transmitting coil resonator 4 among air
Magnetic field energy, and induce among coil high-frequency alternating current, so as to form the power supply of load end, the high-frequency alternating current need through
AC/DC conversion is crossed, i.e., by the transformation of electrical energy of rectifier 6, energy is conveyed to rechargeable battery 7 in the way of direct current, then
Stably powering load again.
Wherein, coil resonator can across air dielectric be exchanged with each other energy key seek to ensure two coils it is humorous
Shake device vibration frequency it is consistent, realization can be specifically controlled using adaptive frequency controller.Among air dielectric, energy
Amount can be only exchanged with each other between co-vibrating object, and the energy exchange between off-resonance object is considerably less, and therefore, which is just
It ensure that the validity of energy transmission.At the beginning of coil resonator design, it is ensured that the size of coil resonator in itself will can be with
The distance of transmission is quite or bigger, to realize higher energy transmission efficiency.Due to the side of the magnetic resonance wireless power transmission
Formula inherently has the potential isolation effect on high-tension line, it is ensured that the safe insulation of high and low pressure side electrically.
Existing most ultra-high-tension power transmission line on-line monitoring equipment are disposed on shaft tower, install solid to facilitate
It is fixed, and weight is accepted using shaft tower, reduce the gravity load to wire.Energy is crossed in wireless form from power transmission line terminal
Insulation distance is transported to low-pressure end, except to ensure good electric insulation, in addition it is also necessary to ensure the power of good energy transmission.
Therefore the size of coil is largely influenceed by energy distance is passed, and when coil is larger, one is found on high-tension line
Suitable coil installation site, that is, meet functional requirement, and insulating requirements can realize attractive in appearance, the requirement such as simple, not ten partial volumes again
Easily, it is therefore desirable to consider.Pylon structure is varied, generally for the pylon for having wire jumper, to prevent wire jumper from producing windage yaw
The problems such as, line jumpers are typically fixed by conductor spacer with aluminium casings, while will be jumped by the insulated tension pole being connected on shaft tower
Line load-bearing is transferred to above shaft tower, enhances the weight capacity of wire jumper.Wire jumper is wider to carry large-size coil, so as to increase
Plus the transimission power and efficiency of wireless energy provide condition.
Referring to Fig. 2, for it is provided in an embodiment of the present invention it is a kind of based on ultra-high-tension power transmission line wire jumper take can on-line monitoring
Scheme of installation of the energy supplying system of equipment on high pressure shaft tower.
Wherein, CT taking energy coils 1 are placed on transmission line of electricity, and the size of CT taking energy coils 1 is unrestricted, changeable, only
Meet and take and can require, connected electrical energy transformer 2 is fixedly installed in above wire jumper aluminium casings adjacent thereto,
And be encapsulated to prevent the destruction of natural climate, and the transmitting coil resonator 4 being connected with electrical energy transformer 2 then it is same by
Transmitting coil fixing device 3 is fixedly installed in above wire jumper aluminium casings adjacent thereto, and the level of transmitting coil resonator 4 is put
Put so that placement is more reliable and more stable and is not take up space resources.Wherein, wire jumper aluminium casings top view is as shown in Figure 3.Relatively
In some current designs：CT taking energy coils are placed on to the most top of shaft tower drainage thread drainage, current transformer is from wire
Obtain after energy, electrical energy transformer and coil are mounted and fixed on power transmission line.Such a scheme add wire in itself by
Power, and the long-time stability of device are the problem of have certain；Furthermore, when the increase of line voltage distribution grade, the size of coil is necessary
Accordingly increase, if on wire, coil can only increase size upwards, be unfavorable for the safe lightning protection of wire, while the party
Method is also unsightly.
In addition, receiving coil resonator 5 is fixed on shaft tower pylon by the suspension of receiving coil fixing device 9, and receive line
Enclosing resonator 5, axially front is relative with transmitting coil resonator 4, and (receiving coil resonator 5 and transmitting coil are humorous for coil resonator
Shake device 4) size can be designed to it is larger with meet energy transmission demand, without by space size on high-tension line
Limitation.Coil resonator can be elongated, and can be relaxed, while can be fitted with the appropriately curved bending amplitude with drainage thread,
I.e. both are designed as drainage thread shape bonded to each other, and space is provided for radial expansion coil dimension；Spill is presented upwards
Coil can also concentrate the magnetic line of force, compared to planar coil, moreover it is possible to reach poly- magnetic effect.In addition, transmitting coil resonator 4 is with receiving line
Circle resonator 5 is designed as the shape of rectangle or circle in the way of snail or vertical spin, wherein for the mode of spiral
And the shape itself formed is not limited in the shape of mode, rectangle or the circle of snail or vertical spin, can press
Specific requirement is changed.As shown in figure 4, being the top view of coil resonator.
In addition, rectifier 6, rechargeable battery 7, on-line monitoring equipment 8 etc. are respectively mounted and are arranged on shaft tower pylon, by shaft tower
Load-bearing is carried out, the gravity load to wire is reduced.
A kind of energy supplying system for the on-line monitoring equipment that energy is taken based on ultra-high-tension power transmission line wire jumper, base are provided in the present invention
The magnetic resonance coupling wireless power transmission mode for taking energy in wire jumper is greatly improved in terms of power supply reliability, with traditional approach phase
Than the mode of the wireless energy supply can provide reliable and stable lasting energy equivalent to common ups power to load, and standby
With battery only in bus current very little, just enabled when CT taking energy coils are taken less than enough energy, compared to it is solar powered, should
Scheme cost is low, and reliability is high, easy for installation, while the discharge and recharge number of times of battery can be significantly reduced, increases the battery longevity
Life, can reduce the maintenance workload of post facility, therefore, whole system can run the long period, considerably reduce system
Later period maintenance and battery altering expense；In addition, taking energy and coil mounting means to whole system based on wire jumper
Practical engineering application provides more applicable method, and the features such as make use of cabling and position and the space of wire jumper will launch
Coil resonator is fixed on the top of wire jumper aluminum pipe, out of doors under the conditions of, the mode of horizontal positioned is more reliable and more stable, and not
Space-consuming resource, while facilitating stationary electric converter, the pull bar by being connected with wire jumper makes whole pull-down section come load-bearing
Separation structure and load-bearing are highly stable, and the scalability of coil dimension and the reliability and stability of installation and convenience can make whole
Individual systematic difference scope is extended, and is it from traditional 110KV, 220KV circuit to the application of higher voltage grade circuit
There is provided possible；The locus advantage that radio energy-transmitting technology and wire jumper have in itself is taken full advantage of, to solve online prison
The reliable power supply problem of measurement equipment, makes whole system feasible in theory, while at the scene in terms of construction, also there is very strong feasible
Property, make each module position distribution of whole system is reliable and stable to take into account attractive in appearance.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
Described above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to before
Embodiment is stated the present invention is described in detail, it will be understood by those within the art that：It still can be to preceding
State the technical scheme described in each embodiment to modify, or equivalent substitution is carried out to which part technical characteristic；And these
Modification is replaced, and the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. it is a kind of based on ultra-high-tension power transmission line wire jumper take can on-line monitoring equipment energy supplying system, it is characterised in that including：
CT taking energy coils, electrical energy transformer, transmitting coil resonator, receiving coil resonator, rectifier, rechargeable battery,
Line monitoring device；
The CT taking energy coils are placed on transmission line of electricity, the CT taking energy coils and the electrical energy transformer, the transmitting coil
Resonator is sequentially connected, and the transmitting coil resonator level is fixedly installed on above the wire jumper sleeve pipe of transmission line of electricity；
The receiving coil resonator is connected with transmitting coil resonator sensing, for receiving the transmitting coil resonator
It is transmitted into the high-frequency energy in air dielectric；
The receiving coil resonator is also sequentially connected with the rectifier, the rechargeable battery, the on-line monitoring equipment.
2. it is according to claim 1 based on ultra-high-tension power transmission line wire jumper take can on-line monitoring equipment energy supplying system, its
It is characterised by, the electrical energy transformer is AC/AC high-frequency electrical energy converters, the rectifier is AC/DC rectifiers.
3. it is according to claim 1 based on ultra-high-tension power transmission line wire jumper take can on-line monitoring equipment energy supplying system, its
It is characterised by, the receiving coil resonator suspension is fixed on shaft tower pylon.
4. it is according to claim 3 based on ultra-high-tension power transmission line wire jumper take can on-line monitoring equipment energy supplying system, its
It is characterised by, the receiving coil resonator is relative to front with the transmitting coil resonator axis.
5. it is according to claim 1 based on ultra-high-tension power transmission line wire jumper take can on-line monitoring equipment energy supplying system, its
It is characterised by, the transmitting coil resonator is identical with the vibration frequency of the receiving coil resonator.
6. it is according to claim 5 based on ultra-high-tension power transmission line wire jumper take can on-line monitoring equipment energy supplying system, its
It is characterised by, the transmitting coil resonator is respectively connected with adaptive frequency controller with the receiving coil resonator.
7. it is according to claim 5 based on ultra-high-tension power transmission line wire jumper take can on-line monitoring equipment energy supplying system, its
It is characterised by, the transmitting coil resonator is drainage thread shape bonded to each other with the receiving coil resonator design.
8. it is according to claim 5 based on ultra-high-tension power transmission line wire jumper take can on-line monitoring equipment energy supplying system, its
It is characterised by, the transmitting coil resonator is designed with the receiving coil resonator in the way of snail or vertical spin
For rectangle or the shape of circle.
9. it is according to claim 1 based on ultra-high-tension power transmission line wire jumper take can on-line monitoring equipment energy supplying system, its
It is characterised by, the electrical energy transformer is fixed on above the wire jumper sleeve pipe of transmission line of electricity.
10. it is according to claim 1 based on ultra-high-tension power transmission line wire jumper take can on-line monitoring equipment energy supplying system, its
It is characterised by, the rectifier is fixedly installed on shaft tower pylon.
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| CN201710474732.8A CN107086612A (en) | 2017-06-21 | 2017-06-21 | The energy supplying system of the on-line monitoring equipment of energy is taken based on ultra-high-tension power transmission line wire jumper |
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| CN201710474732.8A CN107086612A (en) | 2017-06-21 | 2017-06-21 | The energy supplying system of the on-line monitoring equipment of energy is taken based on ultra-high-tension power transmission line wire jumper |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108134410A (en) * | 2017-12-18 | 2018-06-08 | 安徽伊格瑞德电气设备有限公司 | A kind of CT energy taking devices for high-pressure system |
| CN108879984A (en) * | 2018-07-17 | 2018-11-23 | 国网福建省电力有限公司 | A kind of non-linear pressure stabilizing energy taking device takes the application method of energy in transmission line of electricity lightning conducter |
| CN110323791A (en) * | 2019-08-07 | 2019-10-11 | 云南电网有限责任公司电力科学研究院 | Unmanned plane power supply system |
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