CN209071059U - A kind of outer series connection fixed interval (FI) Zinc-Oxide Arrester of 10kV route - Google Patents
A kind of outer series connection fixed interval (FI) Zinc-Oxide Arrester of 10kV route Download PDFInfo
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- CN209071059U CN209071059U CN201821994905.5U CN201821994905U CN209071059U CN 209071059 U CN209071059 U CN 209071059U CN 201821994905 U CN201821994905 U CN 201821994905U CN 209071059 U CN209071059 U CN 209071059U
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- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 239000011787 zinc oxide Substances 0.000 title claims abstract description 27
- 229960001296 zinc oxide Drugs 0.000 title abstract 3
- 239000002184 metal Substances 0.000 claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 22
- 238000005452 bending Methods 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 230000001681 protective effect Effects 0.000 claims description 9
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims description 3
- 239000002356 single layer Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 8
- 238000007599 discharging Methods 0.000 description 12
- 239000012212 insulator Substances 0.000 description 8
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 4
- 238000010791 quenching Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
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Abstract
The utility model discloses a kind of outer series connection fixed interval (FI) Zinc-Oxide Arresters of 10kV route, including lightning arrester body and umbrella sheath.Lightning arrester body includes support tube, upper and lower electrode, metal connecting piece and upper and lower discharge lever.Metal connecting piece is located at the middle part of support tube.Upper and lower discharge lever is made and including thread segment, section of extending, bending segment and end of a round steel；Bending segment is S-shaped and including sequentially connected first curved arc section, vertical extension member, the second curved arc section and is obliquely extended section；End is nose cone；Upper and lower discharge lever is mounted on metal connecting piece and lower electrode in the opposite mode of the second curved arc section, and linear distance nearest between the second curved arc section of upper and lower discharge lever is made to form fixed 40 ± 5mm of the air gap.The arrester of the utility model has connected Zinc-Oxide Arrester the air gap of fixed electric discharge, not only makes in-site installation convenient, flexible, is more advantageous to high-tension line by external series gap blow-out after Lightning Over-voltage electric discharge.
Description
Technical Field
The utility model relates to an outer series fixed gap zinc oxide arrester of 10kV circuit.
Background
The 10kv high-voltage transmission line is the line which has the largest quantity in the power grid, the longest accumulative length and the closest relationship with users. When the distribution network line is struck by lightning, if protective measures are not taken, lightning trip accidents are easy to occur, and even the phenomena of arc burning and wire breakage on the surface of an insulator are caused. Relevant scholars in the present stage mostly adopt arrester and lightning protection gold utensil in order to improve the lightning protection level of circuit, nevertheless install arrester and lightning protection gold utensil additional on a large scale and exist to erect the shortcoming that the degree of difficulty is big and the construction cost is high. In addition, the lightning arrester and hardware fitting installation need to be considered to be effectively matched with the insulator. In the aspect of lightning protection hardware, the protection effect of the lightning protection hardware needs to ensure that the grounding device of the tower is good and the grounding resistance is qualified, and the lightning protection hardware has the defects of poor installation, difficult arc extinguishing and the like in practice.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome prior art's defect and provide a fixed clearance zinc oxide arrester of outer series connection of 10kV circuit, it is convenient installation not only on site, more is favorable to the high tension line to strike by lightning behind the overvoltage discharge outside air gap arc-quenching.
The purpose of the utility model is realized like this: an external series fixed gap zinc oxide arrester of a 10kV line comprises an arrester body and an umbrella skirt sheath; the lightning arrester body comprises a support cylinder, upper and lower electrodes which are arranged at the upper and lower ends of the support cylinder in a one-to-one correspondence manner, a metal connecting piece, an upper electric pole and a lower electric pole; wherein,
the middle part and the lower part of the supporting cylinder are provided with a middle through hole and a lower through hole in a one-to-one correspondence manner;
the outer surface of the umbrella skirt sheath is provided with a middle mounting platform and a lower mounting platform which are correspondingly protruded on the middle through hole and the lower through hole of the supporting cylinder one by one, and the middle mounting platform and the lower mounting platform are respectively provided with a jack coaxial with the middle through hole and a jack coaxial with the lower through hole;
the side surface of the lower electrode is provided with a threaded blind hole coaxial with the lower through hole of the supporting cylinder;
the metal connecting piece is provided with a threaded blind hole and is embedded in the supporting cylinder in a mode that the threaded blind hole is coaxial with the middle through hole of the supporting cylinder;
a zinc oxide valve plate is arranged between the upper electrode and the metal connecting piece in the supporting cylinder, and an insulating supporting piece is filled between the metal connecting piece and the lower electrode in the supporting cylinder;
the upper electric pole and the lower electric pole are respectively made of a round steel and comprise a thread section, an extension section, a bending section and an end part which are sequentially connected from back to front; the bending section is S-shaped and comprises a first bent arc section, a vertical extension section, a second bent arc section and an oblique extension section which are sequentially connected; the end part is a conical head; go up, transfer the pole and install on metal connecting piece and lower electrode with the relative mode one-to-one of their second curved arc section, promptly the screw thread section of transferring the pole is installed in the screw thread blind hole of seting up on the side of lower electrode and on the lower part mount table of full skirt sheath through a nut fastening, the screw thread section of going up the discharge arm is installed in metal connecting piece's the screw thread blind hole and on the mid-mounting table of full skirt sheath through a nut fastening, make the second curved arc section of going up the discharge arm and transfer the second curved arc section of pole between nearest linear distance form fixed air gap, be 40 + -5 mm.
The zinc oxide arrester with the fixed gap is connected outside the 10kV line in series, wherein the arrester further comprises two protective sleeves and an outer insulating sleeve; a protective sleeve is sleeved between the outer surface of the middle mounting table and the outer surface of the rear part of the extension section of the upper discharge rod; the other protective sleeve is sleeved between the outer surface of the lower mounting platform and the outer surface of the rear part of the extension section of the lower power pole; the outer insulating sleeve comprises a front part, a middle part and a rear part, the front part of the outer insulating sleeve is rectangular and has a double-layer structure, the length of the front part of the outer insulating sleeve is matched with the distance between the end parts of the upper electric pole and the lower electric pole, the middle part and the rear part of the outer insulating sleeve are both single-layer, the middle part of the outer insulating sleeve is isosceles trapezoid, the rear part of the outer insulating sleeve is rectangular, the length of the rear part of the outer insulating sleeve is more than twice of the distance between the extension sections of the upper electric pole and the lower electric pole, and two pairs of positioning holes are respectively symmetrically; the front part of the outer insulating sleeve is sleeved on the end parts of the upper and lower electric poles, two sides of the rear part of the insulating sleeve are respectively folded back to the middle after bypassing the front parts of the extension sections of the upper and lower electric poles, so that a pair of positioning holes on two sides and two pairs of positioning holes in the middle are overlapped one by one, and a positioning pin made of glass fiber is arranged in each overlapped positioning hole.
The zinc oxide lightning arrester with the fixed gap is connected outside the 10kV line in series, wherein the diameters of the upper discharge rod and the lower discharge rod are 12 mm; the specification of the thread section is M10, and the length of the thread section is 42 mm; the first arc-shaped section is a 90-degree arc-shaped section with the radius of 10mm, and the distance from the circle center of the first arc-shaped section to the bottom of the threaded section is 76.75 mm; the length of the vertical extension section is 8 mm; the second arc section is a 110-degree arc section with the radius of 11mm, and the distance from the circle center of the second arc section to the bottom of the threaded section is 97.75 mm; the oblique extension section extends towards the tangential direction of the tail end of the second arc-bending section; the taper of the end portion is 60 °.
The zinc oxide arrester with the gap fixed in series outside the 10kV line is characterized in that the umbrella skirts on the umbrella skirt sheaths have the same outer diameter, and the upper end face and the lower end face of each umbrella skirt are inclined planes with the same slope.
The utility model discloses an outer series fixed gap zinc oxide arrester of 10kV circuit has following characteristics: the discharged air gap formed between the upper and lower discharging poles is connected in series with the lightning arrester body to form a whole, the distance between the air gaps of the upper and lower discharging poles is fixed, and the purpose of lightning protection is achieved through the common cooperation of the zinc oxide valve plate and the air gaps connected in series. The discharge is stable, the field installation is convenient, and the air gap does not need to be modified and debugged. The utility model discloses a lightning arrester operation safe and reliable, be convenient for maintain, arc-shaped's discharge rod design is favorable to making the power frequency afterflow arc-quenching after the high voltage transmission lines thunderbolt overvoltage, avoids insulated conductor to take place the thunderbolt broken string accident, effectively improves the stability of the distribution network system power supply under the thunderbolt calamity.
Drawings
Fig. 1 is a schematic structural view of an external series fixed gap zinc oxide arrester of a 10kV line of the present invention;
FIG. 2 is a schematic structural view of an upper and a lower electric poles in the zinc oxide arrester with fixed gaps connected in series outside the 10kV line;
fig. 3 is an expanded view of the outer insulating sleeve in the 10kV line outer series fixed gap zinc oxide arrester of the present invention;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is a schematic view of the installation of the outer insulating sleeve;
FIG. 6 is a bottom view of FIG. 5;
fig. 7 is a view from a-a in fig. 5.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1 to 7, the external series fixed gap zinc oxide arrester of 10kV line of the present invention includes an arrester body and a shed sheath 1 covering the arrester body without gap.
The umbrella skirt sheath 1 is integrally pressed by silicon rubber, the outer diameters of all umbrella skirts on the umbrella skirt sheath 1 are the same, and the upper end surface and the lower end surface of each umbrella skirt are inclined planes with the same slope.
The lightning arrester body comprises a supporting cylinder 2, an upper electrode 3 and a lower electrode 4 which are arranged at the upper end and the lower end of the supporting cylinder 2 in a one-to-one correspondence manner, and further comprises a metal connecting piece 5, an upper discharging rod 6, a lower discharging rod 6', two protecting sleeves 7 and an outer insulating sleeve 8; wherein:
the supporting cylinder 2 is formed by pressing epoxy resin, and a middle perforation and a lower perforation are radially arranged in the middle part and the lower part of the supporting cylinder 2 in a one-to-one correspondence manner;
the outer surface of the umbrella skirt sheath 1 is correspondingly provided with a middle part through hole and a lower part through hole of the supporting cylinder 2 in a protruding way, the middle part mounting table 11 and the lower part mounting table 12 are arranged in a protruding way, and the middle part mounting table 11 and the lower part mounting table 12 are respectively provided with a jack coaxial with the middle part through hole and a jack coaxial with the lower part through hole;
the side surface of the lower electrode 4 is provided with a threaded blind hole which is coaxial with the lower part through hole of the supporting cylinder 2;
the metal connecting piece 5 is provided with a threaded blind hole, and the metal connecting piece 5 is embedded in the insulating supporting cylinder 2 in a way that the threaded blind hole is coaxial with the middle through hole of the supporting cylinder 2;
a zinc oxide valve plate 21 is arranged between the upper electrode 3 and the metal connecting piece 5 in the supporting cylinder 2 to form a lightning protection section of the lightning arrester; an insulator supporting piece 22 is arranged between the metal connecting piece 5 and the lower electrode 4 in the supporting cylinder 2 to form an insulating section of the lightning arrester;
the upper discharging rod 6 and the lower discharging rod 6' are respectively made of a round steel and comprise a threaded section 61, an extension section 62, a bending section 63 and an end part 64 which are sequentially connected from back to front; the bending section 63 is S-shaped and comprises a first bending arc section 63a, a vertical extension section 63b, a second bending arc section 63c and an oblique extension section 63d which are connected in sequence; end 64 is a conical head;
the upper discharge rod 6 and the lower discharge rod 6 'are correspondingly arranged on the metal connecting piece 5 and the lower electrode 4 in a one-to-one manner in a manner that the second arc sections 63c of the upper discharge rod 6 and the lower discharge rod 6' are opposite, namely the thread section 61 of the upper discharge rod 6 is arranged in the thread blind hole of the metal connecting piece 5 and is fastened on the middle mounting table 11 of the shed sheath 1 through a nut 60, the thread section 61 of the lower discharge rod 6 'is arranged in the thread blind hole arranged on the side surface of the lower electrode 4 and is fastened on the lower mounting table 12 of the shed sheath 1 through a nut 60, and the closest straight line distance L between the second arc section 63c of the upper discharge rod 6 and the second arc section 63c of the lower discharge rod 6' is 40mm +/-5 mm;
a protective sleeve 7 is sleeved between the outer surface of the middle mounting table 11 and the outer surface of the rear part of the extension section 62 of the upper discharge rod 6; another protective jacket 7 is sleeved between the outer surface of the lower mounting table 12 and the outer surface of the rear part of the extension section 62 of the lower electric pole 6';
the outer insulating sleeve 8 is made of ultraviolet-resistant, electric-corrosion-resistant and dirt-resistant silicon rubber and comprises a front part 81, a middle part 82 and a rear part 83; the front part 81 of the insulating sleeve 8 is rectangular and has a double-layer structure, the length of the insulating sleeve is matched with the distance between the end part 64 of the upper discharge rod 6 and the end part 64 of the lower electric rod 6 ', the middle part 82 and the rear part 83 of the outer insulating sleeve 8 are both single-layer, the middle part 82 is isosceles trapezoid, the rear part 83 is rectangular and has the length which is more than twice of the distance between the extension section 62 of the upper discharge rod 6 and the extension section 62 of the lower electric rod 6', and two pairs of positioning holes 80 are respectively symmetrically formed in the middle of the rear part and two sides of the rear part of the outer insulating sleeve 8; the front part 81 of the outer insulating sleeve 8 is sleeved on the end part 64 of the upper discharging rod 6 and the end part 64 of the lower electric rod 6 ', two sides of the rear part 83 of the outer insulating sleeve 8 respectively bypass the front part of the extension section 62 of the upper discharging rod 6 and the front part of the extension section 62 of the lower electric rod 6' and then are folded back to the middle, so that a pair of positioning holes 80 at two sides and two pairs of positioning holes in the middle are overlapped one by one, and a positioning pin 800 made of glass fiber is arranged in each overlapped positioning hole 80.
In a preferred embodiment, the upper discharging rod 6 and the lower discharging rod 6' are made of A3 round steel with the diameter of 12 mm; the specification of the thread section 61 is M10, and the length H1 is 42 mm; a first arc-shaped section 63a in the bending section 63 is a 90-degree arc-shaped section with the radius of 10mm, and the distance H2 from the circle center of the first arc-shaped section 63a to the rear end of the thread section 61 is 76.75 mm; the length of the vertically extending section 63b is 8 mm; the second arc-shaped section 63c is a 110-degree arc-shaped section with the radius of 11mm, and the distance H3 from the circle center of the second arc-shaped section 63c to the rear end of the threaded section 61 is 97.75 mm; the oblique extension section 63d extends in the tangential direction of the tail end of the second curved section 63 c; the taper of the end part 64 of the discharge rod 6 is 60 degrees, the head part of the end part 64 is a circular arc head with the radius R3 of 1mm, and the distance H4 from the head part of the end part 64 to the rear end of the threaded section 61 is 115.5 mm.
The utility model discloses an outer fixed clearance zinc oxide arrester of concatenating of 10kV circuit is established ties by the lightning protection section on upper portion and the insulating section of lower part and is formed to draw forth curved last discharge arm 6 and transfer pole 6 ' on the insulating section of lower part, form fixed air gap by last discharge arm 6 and transfer the nearest linear distance between the pole 6 ', and make air gap's distance fix 40 +/-5 mm, need not the change debugging during the field installation. Go up discharge arm 6 and transfer pole 6 'and all adopt nut 60 fastening can prevent to go up discharge arm 6 and transfer pole 6' rotation on a support section of thick bamboo 2.
The utility model discloses a fixed clearance zinc oxide arrester of outer series connection of 10kV circuit, with the parallelly connected installation of insulator, the protection line insulator prevents that overhead line thunderbolt broken string and insulator from flashover. The aim of lightning protection is achieved through the common cooperation of the zinc oxide valve plate and the air gaps connected in series. When the line is influenced by lightning surge overvoltage or power frequency overvoltage, the air gap outside the insulating section discharges before the overvoltage reaches the critical point of insulator flashover, the zinc oxide valve plate acts to introduce the overvoltage into the ground, normal work of the insulator and a lead is ensured, and the power supply stability of a distribution network system under the lightning disaster is effectively improved. The utility model discloses with upper and lower pole and insulating section as a whole, guarantee that air gap's distance is fixed. During discharging, the conical end parts of the upper and lower electric poles can prolong the electric arc between the upper and lower electric poles and lead to the external space of the insulating section, thereby being beneficial to arc quenching after discharging. Cover outer insulating cover between last, transferring the pole, can fully protect the upper and lower pole that exposes in the external world and avoid the long-term erosion of external environment and the short circuit that the toy arouses.
The above embodiments are provided only for the purpose of illustration, not for the limitation of the present invention, and those skilled in the relevant art can make various changes or modifications without departing from the spirit and scope of the present invention, therefore, all equivalent technical solutions should also belong to the scope of the present invention, and should be defined by the claims.
Claims (4)
1. An external series fixed gap zinc oxide arrester of a 10kV line comprises an arrester body and an umbrella skirt sheath; the lightning arrester body comprises a support cylinder, upper and lower electrodes which are arranged at the upper and lower ends of the support cylinder in a one-to-one correspondence manner, a metal connecting piece, an upper electric pole and a lower electric pole; it is characterized in that the preparation method is characterized in that,
the middle part and the lower part of the supporting cylinder are provided with a middle through hole and a lower through hole in a one-to-one correspondence manner;
the outer surface of the umbrella skirt sheath is provided with a middle mounting platform and a lower mounting platform which are correspondingly protruded on the middle through hole and the lower through hole of the supporting cylinder one by one, and the middle mounting platform and the lower mounting platform are respectively provided with a jack coaxial with the middle through hole and a jack coaxial with the lower through hole;
the side surface of the lower electrode is provided with a threaded blind hole coaxial with the lower through hole of the supporting cylinder;
the metal connecting piece is provided with a threaded blind hole and is embedded in the supporting cylinder in a mode that the threaded blind hole is coaxial with the middle through hole of the supporting cylinder;
a zinc oxide valve plate is arranged between the upper electrode and the metal connecting piece in the supporting cylinder, and an insulating supporting piece is filled between the metal connecting piece and the lower electrode in the supporting cylinder;
the upper electric pole and the lower electric pole are respectively made of a round steel and comprise a thread section, an extension section, a bending section and an end part which are sequentially connected from back to front; the bending section is S-shaped and comprises a first bent arc section, a vertical extension section, a second bent arc section and an oblique extension section which are sequentially connected; the end part is a conical head; go up, transfer the pole and install on metal connecting piece and lower electrode with the relative mode one-to-one of their second curved arc section, promptly the screw thread section of transferring the pole is installed in the screw thread blind hole of seting up on the side of lower electrode and on the lower part mount table of full skirt sheath through a nut fastening, the screw thread section of going up the discharge arm is installed in metal connecting piece's the screw thread blind hole and on the mid-mounting table of full skirt sheath through a nut fastening, make the second curved arc section of going up the discharge arm and transfer the second curved arc section of pole between nearest linear distance form fixed air gap, be 40 + -5 mm.
2. The external series fixed gap zinc oxide arrester of claim 1 wherein said arrester further comprises two protective sheaths and an outer insulating sheath; a protective sleeve is sleeved between the outer surface of the middle mounting table and the outer surface of the rear part of the extension section of the upper discharge rod; the other protective sleeve is sleeved between the outer surface of the lower mounting platform and the outer surface of the rear part of the extension section of the lower power pole; the outer insulating sleeve comprises a front part, a middle part and a rear part, the front part of the outer insulating sleeve is rectangular and has a double-layer structure, the length of the front part of the outer insulating sleeve is matched with the distance between the end parts of the upper electric pole and the lower electric pole, the middle part and the rear part of the outer insulating sleeve are both single-layer, the middle part of the outer insulating sleeve is isosceles trapezoid, the rear part of the outer insulating sleeve is rectangular, the length of the rear part of the outer insulating sleeve is more than twice of the distance between the extension sections of the upper electric pole and the lower electric pole, and two pairs of positioning holes are respectively symmetrically; the front part of the outer insulating sleeve is sleeved on the end parts of the upper and lower electric poles, two sides of the rear part of the insulating sleeve are respectively folded back to the middle after bypassing the front parts of the extension sections of the upper and lower electric poles, so that a pair of positioning holes on two sides and two pairs of positioning holes in the middle are overlapped one by one, and a positioning pin made of glass fiber is arranged in each overlapped positioning hole.
3. The external series fixed gap zinc oxide arrester of claim 1, wherein the diameter of the upper and lower discharge rods is 12 mm; the specification of the thread section is M10, and the length of the thread section is 42 mm; the first arc-shaped section is a 90-degree arc-shaped section with the radius of 10mm, and the distance from the circle center of the first arc-shaped section to the bottom of the threaded section is 76.75 mm; the length of the vertical extension section is 8 mm; the second arc section is a 110-degree arc section with the radius of 11mm, and the distance from the circle center of the second arc section to the bottom of the threaded section is 97.75 mm; the oblique extension section extends towards the tangential direction of the tail end of the second arc-bending section; the taper of the end portion is 60 °.
4. The external series fixed gap zinc oxide arrester of claim 1, wherein the sheds on the sheds sheaths have the same outer diameter and the upper and lower end faces of each shed are inclined planes with the same slope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821994905.5U CN209071059U (en) | 2018-11-30 | 2018-11-30 | A kind of outer series connection fixed interval (FI) Zinc-Oxide Arrester of 10kV route |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821994905.5U CN209071059U (en) | 2018-11-30 | 2018-11-30 | A kind of outer series connection fixed interval (FI) Zinc-Oxide Arrester of 10kV route |
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| CN209071059U true CN209071059U (en) | 2019-07-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113783172A (en) * | 2021-07-22 | 2021-12-10 | 西安交通大学 | Intelligent combined protection assembly with external series triggering type overvoltage protection gap |
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2018
- 2018-11-30 CN CN201821994905.5U patent/CN209071059U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113783172A (en) * | 2021-07-22 | 2021-12-10 | 西安交通大学 | Intelligent combined protection assembly with external series triggering type overvoltage protection gap |
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