CN101916633A - Method for improving twisting resistance of composite coating lightning arrester, lightning arrester and manufacturing method thereof - Google Patents
Method for improving twisting resistance of composite coating lightning arrester, lightning arrester and manufacturing method thereof Download PDFInfo
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- CN101916633A CN101916633A CN 201010223103 CN201010223103A CN101916633A CN 101916633 A CN101916633 A CN 101916633A CN 201010223103 CN201010223103 CN 201010223103 CN 201010223103 A CN201010223103 A CN 201010223103A CN 101916633 A CN101916633 A CN 101916633A
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Abstract
The invention discloses a method for improving the twisting resistance of a composite coating lightning arrester, a lightning arrester and a manufacturing method thereof. The lightning arrester comprises an upper metal electrode, a non-linear resistor chip and a lower metal electrode which are connected with one another in turn, wherein an insulation framework is arranged on the outer walls of the upper metal electrode, the lower metal electrode and the non-linear resistor chip; a composite coating is arranged outside the upper metal electrode, the lower metal electrode, the non-linear resistor chip and the insulation framework; an upper conductive pole and an upper fastener are arranged on the upside of the upper metal electrode; a lower conductive pole and a lower fastener are arranged on the downside of the lower metal electrode; the cross section of the middle part of the upper metal electrode is polygonal; and the contact part of the insulation framework and the upper metal electrode is matched with the shape of the upper metal electrode. The invention has the advantages of greatly improving the performance for enduring the big torque of medium-voltage composite coating lightning arresters, reducing the failure rate of the composite lightning arresters under the action of possible over-large tensional moment in mounting and fixing process, such as electrode rotation, seal damage and the like, and improving the operation reliability thereof in power grid.
Description
Technical field
The present invention relates to a kind of method, lightning arrester and manufacture method that improves twisting resistance of composite coating lightning arrester; described lightning arrester refers in particular to a kind of high-strength compound overcoat metal oxide arrester; it generally is applied to 10～20kV electric power system distribution or power station; as atmospheric over-voltage and system's internal overvoltage protection equipment, belong to the manufacturing of power transmission and transformation equipment, application.
Background technology
The middle typical mounting means of polymeric metal oxide surge arrester in distribution or power station application of pressing is shown in accompanying drawing 4 and accompanying drawing 5.The lightning arrester lower end is fixed on the steel cross-arm 61 of electric pole by following securing member 15-11, and the high-voltage connection of protected system is by tightening the upper end that firmware 15-21 is fixed in lightning arrester.The lightning arrester upper and lower end connects and must tighten firmware 15-21 and play securing member 15-11 just can fixedly secure by screwing, could guarantee when lightning arrester is worked need mechanical strength and reliable electric connection; And in screwing the process that tightens firmware 15-21 and following securing member 15-11, the fixing main core line of lightning arrester with screw play securing member 15-11 and the afterburning nominal direction that tightens firmware 15-21 at an angle of 90, so the time by following metal electrode 11-11, go up metal electrode 11-12, non-linear resistor 121, insulation framework 131, securing member 15-11 and the lightning arrester core body that tightens compositions such as firmware 15-21 bear torsional moment effect greatly down.
When the lightning arrester lower end was fastening, the conduction of this moment of torsion was formed the conduction chain by composite sheath 141 bottoms, following metal electrode 11-11, following securing member 15-11, and its conducting piece negligible amounts, conduction are apart from shorter, and be less to the torque failure effect of lightning arrester.After the lightning arrester lower end is fastening during fastening again upper end, the conduction of this moment of torsion by composite sheath 141, go up metal electrode 11-21 and down metal electrode 11-11, insulation framework 131, tighten firmware 15-21 and form and conduct chain; The installer finishes through the steel cross-arm 61 (fixed pedestal) that insulation skeleton 131, following metal electrode 11-11 are transmitted to electric pole by last metal electrode 11-21 tightening the clamp load torque that firmware 15-21 applies; At this moment, effective conduction of tightening torque power depends primarily on the adhesion of metal electrode 11-21 and insulation framework 131, insulation framework 131 and following metal electrode 11-11.
When tightening torque power≤when going up the adhesion of metal electrode 11-21 and insulation framework 131, tightening torque power is transmitted to the steel cross-arm 61 of electric pole and normally finishes the harmless installation of lightning arrester through insulation skeleton 131, following metal electrode 11-11 by last metal electrode 11-21; When tightening torque power＞when going up the adhesion of metal electrode 11-11 and insulation framework 131, slippage takes place between last metal electrode 11-11 and the insulation framework 131, the core body overall structure is destroyed, and the sealing property of lightning arrester is descended, and this type of lightning arrester is installed as and diminishes installation.
Metal electrode 11-21 and following metal electrode 11-11 on the conventional structure, see accompanying drawing 4, each cross section is circular, the insulation framework shape also is circular in company with metal electrode, then the adhesion of circular metal electrode and round insulation skeleton is mainly the frictional force between two, also is that the maximum of conventional circular electrode, insulation framework structure polymeric housed metal oxide arrester allows tightening torque power to depend on frictional force between metal electrode and the insulation framework; And frictional force F=μ N μ is a coefficient of friction; N is a normal pressure; Coefficientoffriction is relevant with material, contact-making surface degree of roughness, and the μ of metal electrode and insulation framework is all little usually; The general cure shrinkage power that forms when the suffered normal pressure N of electrode and insulation framework only is the insulation framework curing molding in the lightning arrester core body, also little; So the permission tightening torque power of conventional circular electrode, insulation framework structure lightning arrester is less, required tightening torque power when installing less than lightning arrester usually.And this fastening operation is almost all finished by simple tools such as spanner are free-hand by the installer at the scene, and spanner length, individual strength size etc. all influences this tightening torque power, and actual torque power is dispersed big apparent; Be generally and guarantee that wiring is fastening reliable, it has been ordinary affair that lightning arrester suffered to turn round.So, centering is installed presses polymeric housed metal oxide arrester damage phenomenon in various degree very general, also be the middle at present higher major reason of total failare rate more than 60% that account for of compound lightning arrester seal failure rate of pressing.
Summary of the invention
The objective of the invention is to solve and press polymeric metal oxide surge arrester tolerance torsional forces less than normal in present domestic conventional circular electrode, the round insulation skeleton, occur the problem that electrode rotation, seal break-off etc. damage in various degree in the installation easily, a kind of method that improves twisting resistance of composite coating lightning arrester is provided.
Second purpose of the present invention provides a kind of tolerance torsional forces, and compound lightning arrester spoilage descends when making installation fastening, and the middle pressure polymeric housed metal oxide arrester that raising has a large capacity and a wide range is at the high-strength compound coat lightning arrester of the operational reliability of electrical network.
The 3rd purpose of the present invention provides a kind of manufacture method of high-strength compound coat lightning arrester.
Technical scheme of the present invention is: a kind of method that improves twisting resistance of composite coating lightning arrester, include successively connect on metal electrode, non-linear resistor and following metal electrode, metal electrode on described, the outer wall of non-linear resistor and following metal electrode is provided with insulation framework, be provided with composite sheath in the described insulation framework outside, and be connected with conducting rod and tighten firmware at last metal electrode, be connected with down conducting rod with following metal electrode and tighten in the polymeric housed metal oxide arrester of firmware, the Cross-section Design that goes up the mid portion of metal electrode to the major general is a polygon, described insulation framework contact with last metal electrode part shape with described on the structure that matches of the profile of metal electrode, outer wall by last metal electrode mid portion and the insulation framework plane contact that part constitutes that contacts with last metal electrode is to improve twisting resistance of composite coating lightning arrester intensity.
Design a kind of high-strength compound coat lightning arrester, comprise metal electrode and following metal electrode, between last metal electrode and following metal electrode, be provided with the non-linear resistor of several series connection, metal electrode on described, the outer wall of following metal electrode and non-linear resistor is provided with insulation framework, metal electrode on described, following metal electrode, the non-linear resistor and the insulation framework outside are provided with composite sheath, on described the metal electrode upper end be fixedly connected with described on metal electrode coaxial, and protrude from the last conducting rod of composite sheath upper end, be fixedly connected with in described down metal electrode lower end with described metal electrode is coaxial down, and protrude from the following conducting rod of composite sheath lower end; Described upward conducting rod is provided with and tightens firmware, and described conducting rod down is provided with down securing member; The described cross section of going up the mid portion of metal electrode is a polygon, and described insulation framework and the contacted part of last metal electrode match with the described profile that goes up metal electrode.
As improvement of the present invention, the described cross section of the mid portion of metal electrode down is a polygon, and described insulation framework and the contacted part of following metal electrode match with the described profile of metal electrode down.
Described polygon is a regular polygon.
Described regular polygon is positive triangle to the dodecagon one.
As to further improvement of the present invention, the height overall H that the described height h that goes up the mid portion of metal electrode accounts for metal electrode is not less than 40%; The height overall H that the described height h of the mid portion of metal electrode down accounts for down metal electrode is not less than 40%.
Described insulation framework is made with glass fiber tape.
Compression strength 〉=the 100Mpa of described insulation framework.
Described composite sheath is made with the silicone rubber compounds sulfuration.
Per two adjacent edges of described polygon are that circular arc seamlessly transits.
The invention provides a kind of manufacture method of polymeric housed metal oxide arrester, comprise the steps,
(1), goes up metal electrode or the making of metal electrode down
After the metal thawing, pouring the shape of cross section of casting mid portion in the mould into is that polygonal upward metal electrode or following metal electrode hair are bad;
With bad metal electrode or the following metal electrode of being machined to of hair;
Conducting rod on last metal electrode is fixedly connected, conducting rod under connecting on the following metal electrode;
(2) making of lightning arrester core core component
To go up metal electrode, non-linear resistor and following metal electrode successively fixes;
To tightly be wound on metal electrode, non-linear resistor and the following metal electrode by the following glass fiber tape of the soft attitude in place of the normal temperature of dipping adhesive again, and pressurization, a 80-160 ℃ segmentation are finalized the design after being heating and curing; Naturally cool to room temperature and go out baking;
(3), the making of composite sheath
Lightning arrester core core component is placed particular manufacturing craft, and in mould, the composite sheath moulding is finished in whole sulfuration under 155-165 ℃ of condition with silicone rubber compounds;
(4), load onto at last conducting rod and to tighten firmware, loading onto securing member down on the conducting rod down.
The present invention changes the circular electrode in the lightning arrester core body, round insulation skeleton into polygon prismatic metal electrode, polygon prismatic insulation framework, make the maximum permissible torque power of conducting between metal electrode and the insulation framework depend on the yield strength and the insulation framework YIELD STRENGTH of metal electrode material, thereby improved the tolerance torsional forces of lightning arrester, make and install that compound lightning arrester spoilage descends when fastening, improved the middle pressure polymeric housed metal oxide arrester that has a large capacity and a wide range in the operational reliability of electrical network.
Description of drawings
Fig. 1 is the planar structure schematic diagram of an embodiment of the present invention.
Fig. 2 is the A-A/B-B planar structure schematic diagram among Fig. 1.
Fig. 3 is the side structure schematic diagram of the metal electrode among Fig. 1.
Fig. 4 is the planar structure schematic diagram of existing lightning arrester.
Fig. 5 is the C-C/D-D planar structure schematic diagram among Fig. 4.
Embodiment
In conjunction with Fig. 1 and Fig. 2, a kind of method that improves twisting resistance of composite coating lightning arrester provided by the invention, including metal electrode 11 in the connection successively, non-linear resistor 2 and following metal electrode 12, metal electrode 11 on described, the outer wall of non-linear resistor 2 and following metal electrode 12 is provided with insulation framework 3, be provided with composite sheath 4 in described insulation framework 3 outsides, and be connected with conducting rod 21 and tighten firmware 5-2 at last metal electrode 11, be connected with down conducting rod 22 with following metal electrode 12 and tighten in the polymeric housed metal oxide arrester of firmware 5-1, the Cross-section Design that goes up the mid portion of metal electrode 11 to the major general is a polygon, described insulation framework 3 contact with last metal electrode 11 part shape with described on the structure that matches of the profile of metal electrode 11, outer wall by last metal electrode 11 mid portions and insulation framework 3 plane contact that part constitutes that contacts with last metal electrode 11 is to improve twisting resistance of composite coating lightning arrester intensity.
See also Fig. 1 to Fig. 2, it is a kind of high-strength compound coat lightning arrester, comprise metal electrode 11 and following metal electrode 12, between last metal electrode 11 and following metal electrode 12, be provided with the non-linear resistor 2 of two series connection, metal electrode 11 on described, the outer wall of following metal electrode 12 and non-linear resistor 2 is provided with insulation framework 3, metal electrode 11 on described, following metal electrode 12, the non-linear resistor 2 and insulation framework 3 outsides are provided with composite sheath 4, on described metal electrode 11 upper ends be fixedly connected with described on metal electrode 11 coaxial, and protrude from the last conducting rod 21 of composite sheath 4 upper ends, be fixedly connected with in described down metal electrode 12 lower ends with described metal electrode 12 is coaxial down, and protrude from the following conducting rod 22 of composite sheath 4 lower ends; Described upward conducting rod 21 is provided with and tightens firmware 5-2, and described conducting rod 22 down is provided with down securing member 5-1; The described cross section of going up the mid portion of metal electrode 11 is a polygon, be preferably octagon, the mid portion of promptly going up metal electrode 11 is eight prisms, and eight prisms are made of two parts, its both diameter is unequal, described insulation framework 3 and last metal electrode 11 contacted parts match with the described profile that goes up metal electrode 11.
In the present embodiment, the described cross section of the mid portion of metal electrode 12 down is a polygon, be preferably octagon, the mid portion that promptly descends metal electrode 12 is eight prisms, and eight prisms are made of two parts, its both diameter is unequal, and described insulation framework 3 and following metal electrode 12 contacted parts match with the described profile of metal electrode 12 down.
Obviously, the cross section of the mid portion of last metal electrode 11 also can be the inequilateral polygon, perhaps is regular polygon.When it is regular polygon, can select the regular polygon of positive triangle to the dodecagon.In the present embodiment, described insulation framework 3 usefulness glass fiber tapes are made.Compression strength 〉=the 100Mpa of described insulation framework 3.Described composite sheath 4 usefulness silicone rubber compounds sulfuration is made.Per two adjacent edges of described polygon are that circular arc seamlessly transits, the dissection of electrode pair insulation framework when avoiding lightning arrester core body to bear torsion and make insulation framework impaired.Securing member among the present invention is a nut.
See also Fig. 3, preferential in order to strengthen going up the bond strength of metal electrode 11 and following metal electrode 12 (close be made by aluminium) and insulation framework 3, described on the height h of mid portion of the metal electrode 11 height overall H that accounts for metal electrode 11 be not less than 40%; The height overall H that the described height h of the mid portion of metal electrode 12 down accounts for down metal electrode 12 is not less than 40%.
Among the present invention, described insulation framework 3 tightly is wound in core body metal electrode+non-linear resistor+metal electrode by dipping adhesive glass fiber tape (normal temperature is the soft attitude in place down), and pressurization, being heating and curing forms; Two ends eight prismatic structure of insulation framework produce when dipping glue glass fibre belt twines electrode, and typing after pressurization, a 80-160 ℃ segmentation are heating and curing naturally cools to room temperature and goes out baking; The actual use of insulation framework compression strength 〉=100MPa.
Described composite sheath 4 is that the lightning arrester core body with the insulation framework good solidification places particular manufacturing craft, makes the proper amount of silicon rubber size finish the composite sheath moulding with 155-165 ℃ of whole sulfuration in mould.
Principle of the present invention, performance, effect comparison:
From last table measured data as seen, structure tolerance torque capability of the present invention can improve 3-5 doubly than present conventional structure lightning arrester.
The manufacture method of a kind of polymeric housed metal oxide arrester provided by the invention comprises the steps,
(1), goes up metal electrode or the making of metal electrode down
After the metal thawing, pouring the shape of cross section of casting mid portion in the mould into is that polygonal upward metal electrode or following metal electrode hair are bad;
With bad metal electrode or the following metal electrode of being machined to of hair;
Conducting rod on last metal electrode is fixedly connected, conducting rod under connecting on the following metal electrode;
(2) making of lightning arrester core core component
To go up metal electrode, non-linear resistor and following metal electrode successively fixes;
To tightly be wound on metal electrode, non-linear resistor and the following metal electrode by the following glass fiber tape of the soft attitude in place of the normal temperature of dipping adhesive again, and pressurization, a 80-160 ℃ segmentation are finalized the design after being heating and curing; Naturally cool to room temperature and go out baking;
(3), the making of composite sheath
Lightning arrester core core component is placed particular manufacturing craft, and in mould, the composite sheath moulding is finished in whole sulfuration under 155-165 ℃ of condition with silicone rubber compounds;
(4), load onto at last conducting rod and to tighten firmware, loading onto securing member down on the conducting rod down.
Among the present invention, every pressure, temperature does not provide occurrence, all is pressure, the temperature value of employed routine of the same trade.
Claims (10)
1. method that improves twisting resistance of composite coating lightning arrester, it is characterized in that: include successively connect on metal electrode (11), non-linear resistor (2) and following metal electrode (12), metal electrode (11) on described, the outer wall of non-linear resistor (2) and following metal electrode (12) is provided with insulation framework (3), be provided with composite sheath (4) in described insulation framework (3) outside, and be connected with conducting rod (21) and tighten firmware (5-2) at last metal electrode (11), be connected with down conducting rod (22) with following metal electrode (12) and tighten in the polymeric housed metal oxide arrester of firmware (5-1), the Cross-section Design that goes up the mid portion of metal electrode (11) to the major general is a polygon, described insulation framework (3) contact with last metal electrode (11) part shape with described on the structure that matches of the profile of metal electrode (11), outer wall by last metal electrode (11) mid portion and insulation framework (3) plane contact that part constitutes that contacts with last metal electrode (11) is to improve twisting resistance of composite coating lightning arrester intensity.
2. high-strength compound coat lightning arrester, comprise metal electrode (11) and following metal electrode (12), between last metal electrode (11) and following metal electrode (12), be provided with the non-linear resistor (2) of several series connection, metal electrode (11) on described, the outer wall of following metal electrode (12) and non-linear resistor (2) is provided with insulation framework (3), metal electrode (11) on described, following metal electrode (12), the non-linear resistor (2) and insulation framework (3) outside are provided with composite sheath (4), metal electrode (11) upper end is fixedly connected with described to go up metal electrode (11) coaxial on described, and protrude from the last conducting rod (21) of composite sheath (4) upper end, be fixedly connected with in described down metal electrode (12) lower end with described metal electrode (12) is coaxial down, and protrude from the following conducting rod (22) of composite sheath (4) lower end; Described upward conducting rod (21) is provided with and tightens firmware (5-2), and described conducting rod (22) down is provided with down securing member (5-1); It is characterized in that: the described cross section of going up the mid portion of metal electrode (11) is a polygon, and contact with last metal electrode (11) shape of part and the profile of described last metal electrode (11) of described insulation framework (3) matches.
3. high-strength compound coat lightning arrester according to claim 1, it is characterized in that: the cross section of the mid portion of described down metal electrode (12) is a polygon, and contact with following metal electrode (12) shape and the described profile of metal electrode (12) of descending of part of described insulation framework (3) matches.
4. high-strength compound coat lightning arrester according to claim 1 and 2 is characterized in that: described polygon is a regular polygon.
5. high-strength compound coat lightning arrester according to claim 3 is characterized in that: described regular polygon is positive triangle to the dodecagon one.
6. high-strength compound coat lightning arrester according to claim 4, it is characterized in that: the height overall (H) that the described height (h) of going up the mid portion of metal electrode (11) accounts for metal electrode (11) is not less than 40%, or/and the height overall (H) that the described height (h) of the mid portion of metal electrode (12) down accounts for down metal electrode (12) is not less than 40%.
7. according to claim 5 or 6 described high-strength compound coat lightning arresters, it is characterized in that: described insulation framework (3) is made with glass fiber tape, and described composite sheath (4) is made with the silicone rubber compounds sulfuration.
8. high-strength compound coat lightning arrester according to claim 7 is characterized in that: the compression strength 〉=100Mpa of described insulation framework (3).
9. high-strength compound coat lightning arrester according to claim 8 is characterized in that: per two adjacent edges of described polygon are that circular arc seamlessly transits.
10. the manufacture method of a polymeric housed metal oxide arrester is characterized in that: comprises the steps,
(1), goes up metal electrode or the making of metal electrode down
After the metal thawing, pouring the shape of cross section of casting mid portion in the mould into is that polygonal upward metal electrode or following metal electrode hair are bad;
With bad metal electrode or the following metal electrode of being machined to of hair;
Conducting rod on last metal electrode is fixedly connected, conducting rod under connecting on the following metal electrode;
(2) making of lightning arrester core core component
To go up metal electrode, non-linear resistor and following metal electrode successively fixes;
To tightly be wound on metal electrode, non-linear resistor and the following metal electrode by the following glass fiber tape of the soft attitude in place of the normal temperature of dipping adhesive again, and pressurization, a 80-160 ℃ segmentation are finalized the design after being heating and curing; Naturally cool to room temperature and go out baking;
(3), the making of composite sheath
Lightning arrester core core component is placed particular manufacturing craft, and in mould, the composite sheath moulding is finished in whole sulfuration under 155-165 ℃ of condition with silicone rubber compounds;
(4), load onto at last conducting rod and to tighten firmware, loading onto securing member down on the conducting rod down.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102231036A CN101916633B (en) | 2010-07-08 | 2010-07-08 | Method for improving twisting resistance of composite coating lightning arrester, lightning arrester and manufacturing method thereof |
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| CN2010102231036A CN101916633B (en) | 2010-07-08 | 2010-07-08 | Method for improving twisting resistance of composite coating lightning arrester, lightning arrester and manufacturing method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103000322A (en) * | 2012-12-05 | 2013-03-27 | 中国西电电气股份有限公司 | Forming method of high-voltage polymeric housed lightning arrester |
| US9484123B2 (en) | 2011-09-16 | 2016-11-01 | Prc-Desoto International, Inc. | Conductive sealant compositions |
| CN109346254A (en) * | 2018-10-23 | 2019-02-15 | 襄阳市三三电气有限公司 | Pressure discharges the distribution type arrester that no-spark generates |
| CN109412022A (en) * | 2018-09-18 | 2019-03-01 | 武汉水院电气有限责任公司 | A kind of technique for sticking of spheric electrode and electro-insulating rubber |
| CN109449763A (en) * | 2018-09-18 | 2019-03-08 | 武汉水院电气有限责任公司 | A kind of multi-chamber gap arrester production method |
| WO2019140586A1 (en) * | 2018-01-18 | 2019-07-25 | Abb Schweiz Ag | Surge arrester and associated manufacturing method |
| CN111668013A (en) * | 2020-06-01 | 2020-09-15 | 宁波高思超导技术有限公司 | Production process of skeleton structure of liquid helium-free superconducting magnet coil |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US9484123B2 (en) | 2011-09-16 | 2016-11-01 | Prc-Desoto International, Inc. | Conductive sealant compositions |
| CN103000322A (en) * | 2012-12-05 | 2013-03-27 | 中国西电电气股份有限公司 | Forming method of high-voltage polymeric housed lightning arrester |
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| WO2019140586A1 (en) * | 2018-01-18 | 2019-07-25 | Abb Schweiz Ag | Surge arrester and associated manufacturing method |
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| CN109449763A (en) * | 2018-09-18 | 2019-03-08 | 武汉水院电气有限责任公司 | A kind of multi-chamber gap arrester production method |
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| CN109449763B (en) * | 2018-09-18 | 2020-09-11 | 武汉水院电气有限责任公司 | Manufacturing method of multi-cavity gap lightning arrester |
| CN109346254A (en) * | 2018-10-23 | 2019-02-15 | 襄阳市三三电气有限公司 | Pressure discharges the distribution type arrester that no-spark generates |
| CN111668013A (en) * | 2020-06-01 | 2020-09-15 | 宁波高思超导技术有限公司 | Production process of skeleton structure of liquid helium-free superconducting magnet coil |
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| CN101916633B (en) | 2012-05-09 |
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Owner name: SHENZHEN ABB SILVER STAR SURGE ARRESTER CO., LTD. Free format text: FORMER OWNER: SHENZHEN SILVER STAR POWER ELECTRONIC CO., LTD. Effective date: 20120604 |
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Effective date of registration: 20120604 Address after: 518000 Guangdong city of Shenzhen province Baoan District Guanlan Street Community Tourism Da BU Xiang Road Building 1301-101301-121301-141301-16A Patentee after: Shenzhen Silver Star Power Electronic Co., Ltd. Address before: Baoan District Guanlan street Shenzhen Guangdong province 518000 city sightseeing road star high tech Industrial Park Patentee before: Shenzhen Silver Star Electric Co., Ltd. |
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Address after: No. 851, Fangshan Second Road, industrial zone, Xiamen Torch High tech Zone (Xiang'an), Xiamen, Fujian Province Patentee after: Xiamen ABB arrester Co., Ltd Address before: 518000 Guangdong city of Shenzhen province Baoan District Guanlan Street Community Tourism Da BU Xiang Road Building 1301-101301-121301-141301-16A Patentee before: SHENZHEN ABB SILVER STAR ARRESTER Co.,Ltd. |
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