CN110661343A - Energy-taking power supply built in ZW20 switch and based on high-voltage capacitor - Google Patents
Energy-taking power supply built in ZW20 switch and based on high-voltage capacitor Download PDFInfo
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- CN110661343A CN110661343A CN201911118374.2A CN201911118374A CN110661343A CN 110661343 A CN110661343 A CN 110661343A CN 201911118374 A CN201911118374 A CN 201911118374A CN 110661343 A CN110661343 A CN 110661343A
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- taking
- power supply
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- 239000003990 capacitor Substances 0.000 title claims abstract 26
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 1
- 239000004743 Polypropylene Substances 0.000 claims 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 claims 1
- 239000010949 copper Substances 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 239000011104 metalized film Substances 0.000 claims 1
- -1 polypropylene Polymers 0.000 claims 1
- 229920001155 polypropylene Polymers 0.000 claims 1
- 239000000741 silica gel Substances 0.000 claims 1
- 229910002027 silica gel Inorganic materials 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract 2
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/05—Circuit arrangements or systems for wireless supply or distribution of electric power using capacitive coupling
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The invention discloses a high-voltage capacitor-based energy-taking power supply built in a ZW20 switch, which comprises a shell, a high-voltage input terminal, a first output plug and a second output plug, wherein one end of the high-voltage input terminal is fixedly arranged on one side of the shell through threads, the first output plug and the second output plug are fixedly connected to the inner wall of the shell through clamp spring type terminals, one ends of the first output plug and the second output plug penetrate through the shell and extend to the outside of the shell, and the high-voltage energy-taking capacitor and the low-voltage energy-taking capacitor are fixedly arranged on the inner wall of the shell from top to bottom through arc-shaped fixing rings respectively. According to the high-voltage capacitor-based energy-taking power supply built in the ZW20 switch, the 10kV plateau energy-taking capacitor is simple in structure, compact in installation, stable and reliable in performance, good in using effect, capable of simply, conveniently and quickly completing installation, long in service life and capable of effectively solving the problem of power supply of a 10kV overhead line distribution line.
Description
Technical Field
The invention relates to the technical field of electrical equipment, in particular to an energy-taking power supply based on a high-voltage capacitor and arranged in a ZW20 switch.
Background
In the construction of a distribution network automation system, the problem of electricity taking of an automation device is always a bottleneck of upgrading and transforming a distribution network line, some devices utilize an electromagnetic voltage transformer to obtain electricity, some devices utilize a current transformer to obtain electricity, and other devices utilize a solar power generation device to obtain electricity, so that in implementation and application, either the investment is large, wiring is complex and unreliable, and the influence of external factors such as operating environment, climate change, line load and the like is possible, thereby limiting the development of distribution network automation.
The power supply of the devices in the on-line monitoring of the transmission line is always a troublesome problem, and the devices need to use regulated power supplies with lower voltage, such as 5V, 6V, 12V, 24V and the like, and although the power consumption of the devices is not necessarily large, the power supply is inconvenient. At present, most of electricity taking methods are current transformers or electromagnetic PT or photovoltaic electricity taking, but all have certain defects.
Especially on the power of getting of ZW20 switch, at present the general way is that external electromagnetic type gets electric PT, the ferroresonance of traditional electromagnetic type PT, and heavy installation is inconvenient, in order to guarantee stable operation and the high integrated design of ZW20 switch, adopt the power mode of getting of integrated double capacitance, should get the device working property of ability and be stable and reliable, get the electric capacity and adopt metallized polypropylene film capacitor, have that loss factor is low, insulation resistance is high, stability is high and characteristics such as self-healing, the electric capacity is got and is had not ferroresonance risk, electric capacity is got and can not consume the circuit active power simultaneously. The integrated double-capacitor energy taking power supply adopts integrated pouring full-insulation output, can be arranged in a switch cavity, improves the insulation performance of the energy taking device and the performance of resisting outdoor environment, is disposable in installation and carrying because no external equipment is arranged outside the switch body, does not need secondary installation and wiring, is convenient for construction and installation, avoids the error probability and reduces the skill requirement of installation personnel. The available signal of gathering of getting the electricity of getting the two sides different phases of energy supply business turn over line judges the discernment that the line has voltage and no voltage, and the problem of getting the energy at many power contact points also can be solved simultaneously, and the two side electric capacity is got the energy and can be realized getting the power of 6W simultaneously, has improved the on-load ability greatly, makes the terminal can increase more functions.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an energy-taking power supply based on a high-voltage capacitor and arranged in a ZW20 switch, and solves the problems that the existing high-voltage energy-taking power supply has large investment, complex and unreliable wiring, is easily influenced by external factors such as operating environment, climate change and line load, has larger volume, is heavy and inconvenient to install, and limits the automatic development of a distribution network in implementation and application.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an interior ZW20 switch of placing based on getting of high-voltage capacitor can power, includes casing, high-voltage input terminal, first output plug and second output plug, screw thread fixed mounting is passed through in one side of casing to the one end of high-voltage input terminal, and first output plug and second output plug all through jump ring formula terminal fixed connection on the inner wall of casing, the one end of first output plug and second output plug all runs through the casing and extends to the outside of casing, and the inner wall of casing from last to getting can electric capacity and low pressure through arc retaining ring fixed mounting high pressure respectively to down and get can electric capacity, the inside of casing just is located the top that the electric capacity was got to high pressure and has protection module through set screw fixed mounting, the inside of casing and the both sides that are located protection module fixed mounting respectively first get can the transformer and the second get can the transformer.
Preferably, the wiring end of the high-voltage input terminal is connected with one end of the high-voltage energy-taking capacitor and one end of the low-voltage energy-taking capacitor through wires respectively, the wiring end of the first output plug is connected with the wiring end of the first energy-taking transformer through a wire, and the wiring end of the second output plug is connected with the wiring end of the second energy-taking transformer through a wire.
Preferably, the wiring terminal of the protection module is respectively connected with the high-voltage energy-taking capacitor, the low-voltage energy-taking capacitor, the first energy-taking transformer and the second energy-taking transformer through wires.
Preferably, the protection module adopts three piezoresistors connected in series and then connected in parallel through double piezoresistors, so that lightning stroke can be effectively prevented, and follow-up electricity taking and a transformer are protected.
Preferably, the high-voltage energy-taking capacitor and the low-voltage energy-taking capacitor are installed at an inclined angle of 5 degrees.
Preferably, the high-voltage energy-taking capacitor is a polypropylene metallized film capacitor, is resistant to voltage of 42kV/min, and has the advantages of low loss factor, high insulation resistance, high stability of capacitance and loss factor compared with temperature and frequency, and self-healing.
Preferably, high-voltage input terminal is the high-pressure silica gel wire that adopts purpose-made single strand hard core copper line, and the withstand voltage 50kV of wire satisfies the withstand voltage requirement to the wire of circuit breaker power frequency, and single strand hard core copper line is convenient for buckle and design inside the circuit breaker simultaneously, and the high-voltage line input port adopts PG 20's water joint, plays the effect of protection and fixed cable, plays sealed effect when also doing protection and embedment insulating material for the insulating layer of cable outside.
Preferably, first output plug and second output plug all adopt 5 core aviation plugs, and the installation is firm and be convenient for later stage production and product at the inside equipment of circuit breaker, and the welding line can separate different processes with installation PT, interferes when avoiding with other part installations.
Preferably, the material of casing chooses the SMC material for use, and insulating properties is good and easily shaping, gets the nylon screw series for the electric capacity, the installation of being convenient for.
(III) advantageous effects
The invention provides a high-voltage capacitor-based energy-taking power supply built in a ZW20 switch. Compared with the prior art, the method has the following beneficial effects: the high-voltage capacitor-based energy taking power supply built in the ZW20 switch is based on a primary and secondary fusion design through an integrated double-capacitor energy taking power supply, provides a working power supply for the device, avoids ferromagnetic resonance of the traditional electromagnetic PT by taking the energy through the capacitor, avoids influence of the outdoor environment by placing the integrated double-capacitor energy taking device in a switch cavity, improves the insulating property of the energy taking device, does not consume active power of a circuit by taking the energy through the capacitor, reduces circuit loss, is more energy-saving than the traditional electromagnetic PT electricity taking, ensures the insulating requirement by integrally designing with a switch body, reduces the production cost, is convenient to install and carry by integrally designing a breaker body, an energy taking unit and a measuring unit, avoids field wiring errors, can complete field installation by only one-time hoisting through the integrated design, has short construction period, reduces the power failure time of the circuit, and reduces the skill requirement of an installer, meanwhile, the power can be taken through different-phase capacitors on the two sides of the incoming and outgoing lines, 6W output power is achieved, a high-power-consumption multifunctional power distribution terminal is met, the power taking problem of multiple power supply contact points is solved, the power taking device is not affected by line load and is easy to install, and a switching-on operation power supply can be provided when the lines are powered off.
Drawings
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a first isometric view of the structure of the present invention;
FIG. 3 is a second axial view of the structure of the present invention;
FIG. 4 is a side view of the structure of the present invention;
FIG. 5 is a top view of the structure of the present invention;
fig. 6 is a schematic diagram of the circuit of the present invention.
In the figure, a shell 1, a high-voltage input terminal 2, a first output plug 3, a second output plug 4, an arc-shaped fixing ring 5, a high-voltage energy-taking capacitor 6, a low-voltage energy-taking capacitor 7, a protection module 8, a first energy-taking transformer 9 and a second energy-taking transformer 10 are arranged.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, an embodiment of the present invention provides a technical solution: a high-voltage capacitor-based energy-taking power supply built in a ZW20 switch comprises a shell 1, a high-voltage input terminal 2, a first output plug 3 and a second output plug 4, wherein one end of the high-voltage input terminal 2 is fixedly arranged on one side of the shell 1 through threads, the first output plug 3 and the second output plug 4 are fixedly connected to the inner wall of the shell 1 through clamp spring type terminals, one ends of the first output plug 3 and the second output plug 4 penetrate through the shell 1 and extend to the outside of the shell 1, the inner wall of the shell 1 is fixedly provided with a high-voltage energy-taking capacitor 6 and a low-voltage energy-taking capacitor 7 through arc-shaped fixing rings 5 from top to bottom, the top of the high-voltage energy-taking capacitor 6 inside the shell 1 is fixedly provided with a protection module 8 through fixing screws, the two sides of the protection module 8 inside the shell 1 are respectively and fixedly provided with a first energy-taking transformer 9 and a second energy-taking transformer 10, the wiring end of a high-voltage input terminal 2 is respectively connected with one end of a high-voltage energy-taking capacitor 6 and one end of a low-voltage energy-taking capacitor 7 through wires, the wiring end of a first output plug 3 is connected with the wiring end of a first energy-taking transformer 9 through wires, the wiring end of a second output plug 4 is connected with the wiring end of a second energy-taking transformer 10 through wires, the wiring end of a protection module 8 is respectively connected with the high-voltage energy-taking capacitor 6, the low-voltage energy-taking capacitor 7, the first energy-taking transformer 9 and the second energy-taking transformer 10 through wires, the protection module 8 adopts three piezoresistors to be connected in series and then connected in parallel through double piezoresistors, the high-voltage energy-taking capacitor 6 and the low-voltage energy-taking capacitor 7 are installed at an inclined angle of 5 degrees, the high-voltage energy-taking capacitor 6 adopts a polypropylene metallized film capacitor, and is resistant to withstand voltage, The high-voltage input terminal 2 is a high-voltage silica gel wire adopting a specially-made single-stranded hard core copper wire, the withstand voltage of the wire is 50kV, the requirement of the withstand voltage of the power frequency of the circuit breaker on the wire is met, meanwhile, the single-stranded hard copper wire is convenient to bend and shape in the circuit breaker, a waterproof joint of PG20 is adopted as a high-voltage wire input port to play a role in protecting and fixing a cable and also play a role in sealing when an insulating layer outside the cable is protected and encapsulated with an insulating material, the first output plug 3 and the second output plug 4 both adopt 5-core aviation plugs, the installation is firm, the later-stage production and the assembly of products in the circuit breaker are convenient, welding wires and the installation can be separated into different procedures, the interference between PT and other parts during the installation is avoided, the shell 1 is made of SMC materials, the insulating property is good, and the shaping is easy, get nylon screw rod series connection for the electric capacity, the installation of being convenient for, the structure adopts parallel design, high-low pressure branch is in both sides, avoid the electric potential difference of AC looks different phase, the switch internally mounted of also being convenient for simultaneously, guarantee the insulating distance of high-voltage end and low-voltage end and insulating material's thickness, also can increase the distance between two electric capacity simultaneously, the evenly distributed of the high-voltage electric field intensity of being convenient for, thereby reduce the partial discharge of product, improve the insulating properties of product, guarantee long-term operation safety, get electric power supply modularization integrated design, uncovered design is convenient for inside gas outgoing, the polyurethane embedment, improve insulating properties and reduce whole partial discharge.
As shown in fig. 6, no power-taking PT needs to be installed outside the switch, a two-way high-voltage capacitor (capacitor PT), a conversion unit and a protection circuit are integrated into a full-insulation design, the high-voltage capacitor C1, a low-voltage capacitor C2, a first transformer T1 and a second transformer T2 are cooperatively arranged to convert the high voltage of the line into a stable alternating voltage on the secondary side of the transformer, and supply power to a front-end acquisition device, so as to provide system power supplies AC1+ \\ AC 1-and AC2+ \ AC 2-for double-side energy taking of the circuit breaker.
To sum up the above
The invention provides a working power supply for the device through an integrated double-capacitor energy taking power supply based on a primary and secondary fusion design, the capacitor energy taking avoids ferromagnetic resonance of the traditional electromagnetic type PT, the integrated double-capacitor energy taking device is arranged in a switch cavity, the influence of outdoor environment is avoided, the insulating property of the energy taking device is improved, the capacitor energy taking does not consume active power of a circuit, the circuit loss is reduced, the energy taking is more energy-saving than the traditional electromagnetic type PT energy taking, the integrated design of the integrated double-capacitor energy taking device and the switch body ensures the insulating requirement, the production cost is reduced, the integrated design of the circuit breaker body, the energy taking unit and the measuring unit is convenient to install and carry, the field wiring error is avoided, the integrated design can complete field installation by only one-time hoisting, the construction period is short, the circuit power failure time is reduced, the skill requirement of an installer is reduced, and meanwhile, the, the high-voltage 10kV plateau energy-taking capacitor has the advantages of simple structure, compact installation, stable and reliable performance, good use effect, simple assembly process, simple and convenient installation, long service life and capability of effectively solving the power supply problem of a 10kV overhead line distribution line.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A high-voltage capacitor-based energy-taking power supply built in a ZW20 switch comprises a shell (1), a high-voltage input terminal (2), a first output plug (3) and a second output plug (4), and is characterized in that: one end of the high-voltage input terminal (2) is fixedly arranged on one side of the shell (1) through threads, and the first output plug (3) and the second output plug (4) are fixedly connected on the inner wall of the shell (1) through a clamp spring type terminal, one end of each of the first output plug (3) and the second output plug (4) penetrates through the shell (1) and extends to the outside of the shell (1), and the inner wall of the shell (1) is fixedly provided with a high-voltage energy-taking capacitor (6) and a low-voltage energy-taking capacitor (7) from top to bottom through an arc-shaped fixed ring (5), a protection module (8) is fixedly arranged in the shell (1) and positioned at the top of the high-voltage energy-taking capacitor (6) through a fixing screw, the power supply device is characterized in that a first energy-taking transformer (9) and a second energy-taking transformer (10) are fixedly mounted inside the shell (1) and on two sides of the protection module (8) respectively.
2. The high-voltage capacitor-based energy-extracting power supply built in the ZW20 switch as claimed in claim 1, wherein: the wiring end of the high-voltage input terminal (2) is connected with one end of the high-voltage energy-taking capacitor (6) and one end of the low-voltage energy-taking capacitor (7) through wires respectively, the wiring end of the first output plug (3) is connected with the wiring end of the first energy-taking transformer (9) through a wire, and the wiring end of the second output plug (4) is connected with the wiring end of the second energy-taking transformer (10) through a wire.
3. The high-voltage capacitor-based energy-extracting power supply built in the ZW20 switch as claimed in claim 1, wherein: and the wiring terminal of the protection module (8) is respectively connected with the high-voltage energy-taking capacitor (6), the low-voltage energy-taking capacitor (7), the first energy-taking transformer (9) and the second energy-taking transformer (10) through wires.
4. The high-voltage capacitor-based energy-extracting power supply built in the ZW20 switch as claimed in claim 1, wherein: the protection module (8) is formed by connecting three piezoresistors in series and then connecting the piezoresistors in parallel through double piezoresistors.
5. The high-voltage capacitor-based energy-extracting power supply built in the ZW20 switch as claimed in claim 1, wherein: the high-voltage energy-taking capacitor (6) and the low-voltage energy-taking capacitor (7) are installed at an inclined angle of 5 degrees.
6. The high-voltage capacitor-based energy-extracting power supply built in the ZW20 switch as claimed in claim 1, wherein: the high-voltage energy-taking capacitor (6) is a polypropylene metallized film capacitor and resists voltage of 42 kV/min.
7. The high-voltage capacitor-based energy-extracting power supply built in the ZW20 switch as claimed in claim 1, wherein: high-voltage input terminal (2) are the high-pressure silica gel wire that adopts single strand hard core copper line, and the withstand voltage 50kV of wire, and the waterproof connection of PG20 is adopted to the high-voltage line input port.
8. The high-voltage capacitor-based energy-extracting power supply built in the ZW20 switch as claimed in claim 1, wherein: the first output plug (3) and the second output plug (4) are both 5-core aviation plugs.
9. The high-voltage capacitor-based energy-extracting power supply built in the ZW20 switch as claimed in claim 1, wherein: the shell (1) is made of SMC materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911118374.2A CN110661343A (en) | 2019-11-15 | 2019-11-15 | Energy-taking power supply built in ZW20 switch and based on high-voltage capacitor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911118374.2A CN110661343A (en) | 2019-11-15 | 2019-11-15 | Energy-taking power supply built in ZW20 switch and based on high-voltage capacitor |
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| CN110661343A true CN110661343A (en) | 2020-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911118374.2A Pending CN110661343A (en) | 2019-11-15 | 2019-11-15 | Energy-taking power supply built in ZW20 switch and based on high-voltage capacitor |
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| CN (1) | CN110661343A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119049912A (en) * | 2024-11-01 | 2024-11-29 | 浙江华采科技有限公司 | Capacitor electricity taking module connected with bottom of pole and production process |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209150714U (en) * | 2018-10-31 | 2019-07-23 | 国网新疆电力有限公司阿克苏供电公司 | One or two fusion intelligent breakers based on full electronic mutual inductor |
| CN210608701U (en) * | 2019-11-15 | 2020-05-22 | 国网陕西省电力公司宝鸡供电公司 | Energy-taking power supply built in ZW20 switch and based on high-voltage capacitor |
-
2019
- 2019-11-15 CN CN201911118374.2A patent/CN110661343A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209150714U (en) * | 2018-10-31 | 2019-07-23 | 国网新疆电力有限公司阿克苏供电公司 | One or two fusion intelligent breakers based on full electronic mutual inductor |
| CN210608701U (en) * | 2019-11-15 | 2020-05-22 | 国网陕西省电力公司宝鸡供电公司 | Energy-taking power supply built in ZW20 switch and based on high-voltage capacitor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119049912A (en) * | 2024-11-01 | 2024-11-29 | 浙江华采科技有限公司 | Capacitor electricity taking module connected with bottom of pole and production process |
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