CN113674939A - 10kV lightning arrester with medium-voltage carrier communication capacitive coupler function - Google Patents
10kV lightning arrester with medium-voltage carrier communication capacitive coupler function Download PDFInfo
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- CN113674939A CN113674939A CN202110105295.9A CN202110105295A CN113674939A CN 113674939 A CN113674939 A CN 113674939A CN 202110105295 A CN202110105295 A CN 202110105295A CN 113674939 A CN113674939 A CN 113674939A
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- 238000004891 communication Methods 0.000 title claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 44
- 239000002184 metal Substances 0.000 claims abstract description 44
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 36
- 239000004945 silicone rubber Substances 0.000 claims abstract description 15
- 230000008878 coupling Effects 0.000 claims abstract description 8
- 238000010168 coupling process Methods 0.000 claims abstract description 8
- 238000005859 coupling reaction Methods 0.000 claims abstract description 8
- 239000004593 Epoxy Substances 0.000 claims abstract description 4
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 24
- 239000003990 capacitor Substances 0.000 claims description 15
- 239000011787 zinc oxide Substances 0.000 claims description 12
- 239000010963 304 stainless steel Substances 0.000 claims description 9
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 9
- 239000003985 ceramic capacitor Substances 0.000 claims description 4
- 229910000553 6063 aluminium alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 208000025274 Lightning injury Diseases 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 11
- 230000004927 fusion Effects 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000002955 isolation Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910001053 Nickel-zinc ferrite Inorganic materials 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/12—Overvoltage protection resistors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/02—Housing; Enclosing; Embedding; Filling the housing or enclosure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/105—Varistor cores
- H01C7/108—Metal oxide
- H01C7/112—ZnO type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/06—Solid dielectrics
- H01G4/08—Inorganic dielectrics
- H01G4/12—Ceramic dielectrics
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a 10kV lightning arrester with a medium-voltage carrier communication capacitive coupler function, which comprises a lightning arrester body, a silicon rubber skirt, an upper electrode, a C-shaped wire clamp, a signal port, a nameplate, a lower electrode metal insert, a lower electrode metal flat pad and a lower electrode fixing screw, wherein the silicon rubber skirt is sleeved on the upper electrode; the lightning arrester body is poured by epoxy, a silicone rubber skirt is arranged on the periphery of the outer side of the lightning arrester body, and the signal port and the nameplate are embedded in the silicone rubber skirt; the upper electrode is a metal screw rod penetrating out of the lightning arrester body and the silicon rubber skirt sleeve, and a C-shaped wire clamp is arranged on the screw rod; the lower electrode is a metal insert and a bottom metal flat pad which penetrate out of the lightning arrester body and the silicon rubber skirt sleeve, and the metal insert is provided with a screw hole and a metal fixing screw. The invention realizes the fusion design of the 10kV capacitive coupler and the lightning arrester, has the functions of coupling transmission and reception of carrier signals and power frequency isolation, also has the function of lightning protection, saves space, is convenient to install, is safe and reliable, has long service life, and is suitable for strong lightning areas.
Description
Technical Field
The invention relates to the technical field of lightning arresters, in particular to a 10kV lightning arrester with a medium-voltage carrier communication capacitive coupler function.
Background
With the advance of smart grid construction, the core of power distribution link construction, namely 'power distribution automation', becomes one of important contents of smart grid construction in China, and a power distribution automation communication system is an important component of power distribution automation and is a main content of a terminal communication access network provided by a power communication network adapting to smart grid construction. The special optical fiber line has high speed, high networking reliability and high safety, but the construction cost is high, and a plurality of areas do not have laying conditions; the wireless private network standard is imperfect, and the base station construction cost is high; the wireless public network has uncontrolled network service quality and weak safety protection capability, and does not meet the requirement of 'three remote'; the medium-voltage carrier communication technology is mature gradually, medium-voltage distribution lines are used as carriers, the construction cost is low, the safety and the speed can meet the requirement of 'three remote' and become an important ring for the construction of a distribution automation communication system. The capacitive coupler is one of devices in a medium-voltage carrier communication system, and mainly realizes coupling transmission and reception of carrier signals and isolation of power frequency, and the installation position of the capacitive coupler is consistent with that of a lightning arrester. The position of a capacitive coupler is not planned in a typical design of a power distribution network project, the direct parallel connection on two sides of a lightning arrester in the actual installation process can cause insufficient interphase safety distance, and a cross arm or an angle iron is generally required to be added to fixedly install equipment. And each additional primary device increases a risk point for the safe operation of the power distribution network, and simultaneously influences the aesthetic effect of the standardized construction and planning of the power distribution network.
In order to solve the problem of incremental equipment in large-scale construction and transformation of a power distribution network, a technical scheme for primary and secondary fusion of power distribution equipment is proposed by a national power grid in 2016. However, in recent years, all major manufacturers always perform primary and secondary fusion design in the directions of 10kV power distribution intelligent circuit breakers, PTs, monitoring terminals and the like, and the fusion design of incremental equipment such as capacitive couplers and the like is not related at all.
The method is specifically specified in GB 51302-2018 overhead insulated distribution line design standard: "there should be a set of gapless metal oxide arresters installed on the high-voltage side and the low-voltage side of the distribution transformer respectively. A group of gapless metal oxide lightning arresters are arranged on a power supply side of the pole-mounted circuit breaker and the load switch. A group of gapless metal oxide lightning arresters are respectively arranged on two sides of a pole-mounted circuit breaker and a load switch which are operated frequently and are electrified. The installation position of the lightning arrester is consistent with the installation position required by a capacitive coupler, and in addition, the lightning arrester HY5WS-17/50 pushed in 10kV of the typical design of the power distribution network project has short service life in a strong lightning area, is easy to crack and has high polling cost.
Disclosure of Invention
Aiming at the defects or shortcomings in the prior art, the invention aims to provide a 10kV lightning arrester with a medium-voltage carrier communication capacitive coupler function, the fusion design of the 10kV capacitive coupler and the lightning arrester is realized, the lightning arrester not only has the functions of coupling transmission and reception of carrier signals and power frequency isolation, but also has the lightning protection function, does not occupy extra space, is convenient to install, safe, reliable and long in service life, is suitable for a strong lightning area, and belongs to a brand new design under a one-time and two-time fusion concept.
In order to achieve the purpose, the invention provides the following technical scheme:
a10 kV lightning arrester with a medium-voltage carrier communication capacitive coupler function comprises a lightning arrester body, a silicon rubber skirt, an upper electrode, a C-shaped wire clamp, a signal port, a nameplate and a lower electrode;
the lightning arrester body is poured by epoxy, a silicone rubber skirt is arranged on the outer side of the lightning arrester body in a circle, and a signal port and a nameplate are embedded in the silicone rubber skirt; the silicon rubber skirt sleeves are made of organic silicon rubber and are bonded on the outer side of the lightning arrester body, umbrella body structures which are equally spaced are arranged on the outer wall of the lightning arrester body from top to bottom, each umbrella body structure is of a large-small alternate fixed structure, and the ring part of each umbrella body is of a structure with gradually narrowed thickness from inside to outside; the upper electrode is a metal screw rod penetrating out of the lightning arrester body and the silicon rubber skirt sleeve, and a C-shaped wire clamp is arranged on the screw rod; the lower electrode is a metal insert and a bottom metal flat pad which penetrate out of the lightning arrester body and the silicon rubber skirt sleeve, and the metal insert is provided with a screw hole and a metal fixing screw.
Further, the interior of the lightning arrester comprises a high-voltage capacitor, an impedance converter and a zinc oxide resistor disc;
the high-voltage capacitor is connected in series with the primary side of the impedance transformer, the secondary side of the impedance transformer is connected with a signal port, and the zinc oxide resistor disc core body is connected in parallel with two ends of the high-voltage capacitor and the impedance transformer after being connected in series.
Furthermore, the high-voltage capacitor in the lightning arrester body is a high-voltage ceramic capacitor, the rated power frequency withstand voltage is 50kV, and the rated lightning stroke withstand voltage is +/-95 kV.
Furthermore, the internal impedance converter of the lightning arrester body is a high-frequency coupling transformer, the working frequency band is 10KHz-12MHz, and the rated power frequency withstand voltage of the primary level and the secondary level is 50 kV.
Furthermore, the resistor disc core body of the zinc oxide inside the lightning arrester body is a heavy load resistor disc, the nominal discharge current is 10kA, the 2ms square wave flux is 600A, and the residual voltage is 45kV under 8/20us nominal discharge current.
Further, the data plate is 6063 aluminum alloy material.
Furthermore, the metal screw of the upper electrode is made of 304 stainless steel.
Further, the C-shaped wire clamp is made of 304 stainless steel.
Further, the signal port is a TNC female connector.
Furthermore, the metal insert, the metal flat pad and the metal fixing screw of the lower electrode are made of 304 stainless steel, and the fixing screw is a hexagonal flat head screw.
The invention has the beneficial effects that:
the invention realizes the fusion design of the 10kV capacitive coupler and the lightning arrester, and has the functions of coupling transmission and reception of carrier signals and power frequency isolation as well as the function of lightning protection. In the capacitive coupler, a zinc oxide resistor disc adopts a high-performance heavy-load resistor disc, a high-voltage capacitor adopts a high-voltage-resistant ceramic capacitor, an impedance converter adopts a high-voltage-resistant coupling transformer, and the three form an internal protection means; the umbrella skirt structure outside the silicone rubber skirt sleeve increases creepage distance and prevents ice flashover; the integrated design saves space; c type clamp is easy to assemble. The invention is safe and reliable, has long service life, is suitable for strong thunder areas, and belongs to a brand new design under the concept of primary and secondary fusion.
Drawings
Fig. 1 is a schematic front view of the structure of the present invention.
Fig. 2 is a schematic side view (right) of the structure of the present invention.
Fig. 3 is a schematic side view (left) of the structure of the present invention.
Fig. 4 is a bottom view of the structure of the present invention.
Fig. 5 is a schematic structural diagram of the present invention.
FIG. 6 is a schematic block diagram of the internal workings of the invention.
Reference numerals: the lightning arrester comprises a lightning arrester body 1, a silicon rubber skirt 2, an upper electrode 3, a C-shaped wire clamp 4, a signal port 5, a nameplate 6, a lower electrode-metal insert 7, a lower electrode-metal flat pad 8, a lower electrode-fixing screw 9, a silicon rubber skirt-umbrella skirt (small), a silicon rubber skirt-umbrella skirt (large) B and a silicon rubber skirt-umbrella skirt (middle).
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments to specifically describe the system scheme of the present invention. The following examples are only for illustrating the system scheme of the present invention more clearly, and should not be taken as limiting the scope of the present invention.
As shown in fig. 1-5, a 10kV arrester with a function of a medium-voltage carrier communication capacitive coupler comprises an arrester body 1, a silicon rubber skirt 2, an upper electrode 3, a C-type wire clamp 4, a signal port 5, a nameplate 6, a lower electrode metal insert 7, a lower electrode metal flat pad 8, and a lower electrode fixing screw 9;
the lightning arrester body 1 is poured by epoxy, a silicone rubber skirt cover 2 is arranged on the periphery of the outer side of the lightning arrester body, and a signal port 5 and a nameplate 6 are embedded in the silicone rubber skirt cover 2; the upper electrode is a metal screw rod which penetrates out of the lightning arrester body 1 and the silicon rubber skirt sleeve 2, and a C-shaped wire clamp 4 is arranged on the screw rod; the lower electrode is a metal insert 7 and a bottom metal flat pad 8 which penetrate out of the lightning arrester body 1 and the silicon rubber skirt sleeve 2, and the metal insert is provided with a screw hole and a metal fixing screw 9.
As a preferred scheme of the present invention, the silicone rubber skirt 2 is made of organic silicone rubber and is bonded to the outer side of the arrester body 1, the outer wall of the silicone rubber skirt 2 is provided with umbrella structures at equal intervals from top to bottom, the umbrella structures are alternately fixed into a large structure and a small structure, the ring portion of each umbrella body is an inner-to-outer gradually-narrowed structure, preferably, the outer diameter of the silicone rubber skirt-umbrella skirt (small) a is 120mm, the outer diameter of the silicone rubber skirt-umbrella skirt (large) B is 160mm, the outer diameter of the silicone rubber skirt-umbrella skirt (middle) C is 140mm, and the inclination angle of the umbrella structure is 14.5 °.
As a preferred scheme of the present invention, the high-voltage capacitor inside the lightning arrester body 1 is a high-voltage ceramic capacitor, the rated power frequency withstand voltage is 50kV, the rated lightning strike withstand voltage is ± 95kV, and preferably, the high-voltage capacitor ceramic dielectric is N4700, the high-voltage capacitor is cylindrical, the diameter is 60mm, and the height is 30 mm.
As a preferred scheme of the present invention, the impedance transformer inside the lightning arrester body 1 is a high-frequency coupling transformer, the operating frequency band is 10KHz-12MHz, the rated power frequency withstand voltage of the primary and secondary stages is 50kV, preferably, the material of the magnetic core of the impedance transformer is nickel-zinc ferrite, the turn ratio of the primary and secondary stages is 1: 1.
as a preferable scheme of the invention, the zinc oxide resistor disc core body in the lightning arrester body 1 is a heavy-load resistor disc, the nominal discharge current is 10kA, the square wave flux of 2ms is 600A, and the residual voltage of 8/20us is 45kV under the nominal discharge current, preferably, the resistor disc is cylindrical, the diameter is 48mm, the height is 24mm, and the zinc oxide resistor disc core body is a cylinder packaged by 5 resistor discs, the height is 160mm, and the diameter is 55 mm.
As a preferred scheme of the present invention, the nameplate is made of 6063 aluminum alloy, and preferably, the nameplate includes information such as a product name, a product model, a production date, a production number, a manufacturer, a rated voltage, a rated capacity, and a working frequency band.
In a preferred embodiment of the present invention, the metal screw of the upper electrode is made of 304 stainless steel, and preferably, the size of the metal screw is 12 mm.
As a preferable scheme of the invention, the C-shaped wire clamp is made of 304 stainless steel, and preferably, one end of the C-shaped wire clamp is used for fixing a metal screw rod with the diameter of 12mm, and the other end of the C-shaped wire clamp is used for fixing a metal screw rod with the diameter of 35mm2And (6) leading wires.
As a preferred aspect of the present invention, the signal port is a TNC female connector.
As a preferable scheme of the present invention, the metal insert, the metal flat pad and the metal fixing screw of the lower electrode are made of 304 stainless steel, the fixing screw is a hexagonal flat head screw, preferably, the screw hole of the metal insert has a screw thread size of M16 and an effective depth of 21mm, and the metal fixing screw is an M16 hexagonal flat head screw.
As shown in fig. 6, the inside of the lightning arrester body 1 is provided with a high-voltage capacitor, an impedance converter and a zinc oxide resistance chip core body, wherein a end of the high-voltage capacitor is connected with the upper electrode 3, b end is connected with the primary e end of the impedance converter, f end of the impedance converter is connected with the lower electrode-metal insert 7, the secondary g end and h end of the impedance converter are connected with the signal port 5, c end of the zinc oxide resistance chip is connected with a end of the high-voltage capacitor, and d end of the zinc oxide resistance chip is connected with f end of the impedance converter.
The above embodiments are illustrative of specific embodiments of the present invention, and are not restrictive of the present invention, and those skilled in the relevant art can make various changes and modifications without departing from the spirit and scope of the present invention to obtain corresponding equivalent technical solutions, and therefore all equivalent technical solutions should be included in the scope of the present invention.
Claims (10)
1. A10 kV lightning arrester with a medium-voltage carrier communication capacitive coupler function is characterized by comprising a lightning arrester body, a silicon rubber skirt, an upper electrode, a C-shaped wire clamp, a signal port, a nameplate and a lower electrode;
the lightning arrester body is poured by epoxy, a silicone rubber skirt is arranged on the outer side of the lightning arrester body in a circle, and a signal port and a nameplate are embedded in the silicone rubber skirt; the silicon rubber skirt sleeves are made of organic silicon rubber and are bonded on the outer side of the lightning arrester body, umbrella body structures which are equally spaced are arranged on the outer wall of the lightning arrester body from top to bottom, each umbrella body structure is of a large-small alternate fixed structure, and the ring part of each umbrella body is of a structure with gradually narrowed thickness from inside to outside; the upper electrode is a metal screw rod penetrating out of the lightning arrester body and the silicon rubber skirt sleeve, and a C-shaped wire clamp is arranged on the screw rod; the lower electrode is a metal insert and a bottom metal flat pad which penetrate out of the lightning arrester body and the silicon rubber skirt sleeve, and the metal insert is provided with a screw hole and a metal fixing screw.
2. The 10kV lightning arrester with the medium-voltage carrier communication capacitive coupler function according to claim 1, wherein the lightning arrester internally comprises a high-voltage capacitor, an impedance converter and a zinc oxide resistor disc;
the high-voltage capacitor is connected in series with the primary side of the impedance transformer, the secondary side of the impedance transformer is connected with a signal port, and the zinc oxide resistor disc core body is connected in parallel with two ends of the high-voltage capacitor and the impedance transformer after being connected in series.
3. The 10kV lightning arrester with the function of the medium-voltage carrier communication capacitive coupler according to claim 2, wherein the high-voltage capacitor inside the lightning arrester body is a high-voltage ceramic capacitor, and has a rated power frequency withstand voltage of 50kV and a rated lightning stroke withstand voltage of +/-95 kV.
4. The 10kV lightning arrester with the function of the medium-voltage carrier communication capacitive coupler according to claim 2, wherein the internal impedance converter of the lightning arrester body is a high-frequency coupling transformer, the working frequency band is 10KHz-12MHz, and the rated power frequency withstand voltage of a primary stage and a secondary stage is 50 kV.
5. The 10kV lightning arrester with the function of the medium-voltage carrier communication capacitive coupler according to claim 2, wherein the resistor disc core body of the zinc oxide inside the lightning arrester body is a heavy-load resistor disc, and the residual voltage is 45kV under the nominal discharge current of 10kA, 600A of 2ms square wave flow and 8/20us of nominal discharge current.
6. The 10kV lightning arrester with the function of the medium-voltage carrier communication capacitive coupler according to claim 1, wherein the nameplate is made of 6063 aluminum alloy.
7. The 10kV lightning arrester with the function of the medium-voltage carrier communication capacitive coupler according to claim 1, wherein the metal screw of the upper electrode is made of 304 stainless steel.
8. The 10kV lightning arrester with the function of the medium-voltage carrier communication capacitive coupler is characterized in that the C-shaped wire clamp is made of 304 stainless steel.
9. The 10kV lightning arrester with the function of the medium-voltage carrier communication capacitive coupler of claim 1, wherein the signal port is a TNC female connector.
10. The 10kV lightning arrester as claimed in claim 1, wherein the metal insert, the metal flat pad and the metal fixing screw of the lower electrode are made of 304 stainless steel, and the fixing screw is a hexagonal flat head screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110105295.9A CN113674939A (en) | 2021-01-26 | 2021-01-26 | 10kV lightning arrester with medium-voltage carrier communication capacitive coupler function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110105295.9A CN113674939A (en) | 2021-01-26 | 2021-01-26 | 10kV lightning arrester with medium-voltage carrier communication capacitive coupler function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201191547Y (en) * | 2008-03-14 | 2009-02-04 | 武汉雷泰电力科技发展有限公司 | 35kV tapper shape supporting column type composite sleeve gapless metal-oxide lighting arrester |
| CN201904175U (en) * | 2010-12-24 | 2011-07-20 | 丹东电力设备厂 | All-insulated AC gapless metal zinc oxide lightning arrester |
| CN202102814U (en) * | 2011-06-30 | 2012-01-04 | 保定市唐北电瓷电器有限公司 | Porcelain insulator for preventing insulated conductor breakage caused by lightning stroke |
| CN202120693U (en) * | 2011-06-16 | 2012-01-18 | 永固集团股份有限公司 | Pillar type arc preventing insulator |
| CN104579430A (en) * | 2015-01-07 | 2015-04-29 | 国家电网公司 | Integrated capacitive coupling equipment for power distribution circuit of 10 kV |
| CN105790797A (en) * | 2016-01-29 | 2016-07-20 | 青岛鼎信通讯股份有限公司 | Integrated capacitive coupler for medium voltage power carrier communication |
| JP2018040775A (en) * | 2016-09-09 | 2018-03-15 | 株式会社東芝 | Leakage current measurement method for transmission line arrester and measurement apparatus |
| CN208045205U (en) * | 2018-05-07 | 2018-11-02 | 国网山东省电力公司招远市供电公司 | A kind of 10kv overhead distributions Novel lightning-proof device |
| CN109378145A (en) * | 2018-09-12 | 2019-02-22 | 西安西交瑞力电气研究院有限公司 | A kind of Zinc-Oxide Arrester and its electricity-fetching method |
| CN208819739U (en) * | 2018-09-18 | 2019-05-03 | 西安伟超电容器有限公司 | A kind of medium-voltage carrier communicative couplings capacitor that stability is good |
-
2021
- 2021-01-26 CN CN202110105295.9A patent/CN113674939A/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201191547Y (en) * | 2008-03-14 | 2009-02-04 | 武汉雷泰电力科技发展有限公司 | 35kV tapper shape supporting column type composite sleeve gapless metal-oxide lighting arrester |
| CN201904175U (en) * | 2010-12-24 | 2011-07-20 | 丹东电力设备厂 | All-insulated AC gapless metal zinc oxide lightning arrester |
| CN202120693U (en) * | 2011-06-16 | 2012-01-18 | 永固集团股份有限公司 | Pillar type arc preventing insulator |
| CN202102814U (en) * | 2011-06-30 | 2012-01-04 | 保定市唐北电瓷电器有限公司 | Porcelain insulator for preventing insulated conductor breakage caused by lightning stroke |
| CN104579430A (en) * | 2015-01-07 | 2015-04-29 | 国家电网公司 | Integrated capacitive coupling equipment for power distribution circuit of 10 kV |
| CN105790797A (en) * | 2016-01-29 | 2016-07-20 | 青岛鼎信通讯股份有限公司 | Integrated capacitive coupler for medium voltage power carrier communication |
| JP2018040775A (en) * | 2016-09-09 | 2018-03-15 | 株式会社東芝 | Leakage current measurement method for transmission line arrester and measurement apparatus |
| CN208045205U (en) * | 2018-05-07 | 2018-11-02 | 国网山东省电力公司招远市供电公司 | A kind of 10kv overhead distributions Novel lightning-proof device |
| CN109378145A (en) * | 2018-09-12 | 2019-02-22 | 西安西交瑞力电气研究院有限公司 | A kind of Zinc-Oxide Arrester and its electricity-fetching method |
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Application publication date: 20211119 |