WO2022027889A1 - 一种环氧树脂浸渍玻璃纤维直流套管研制方法 - Google Patents
一种环氧树脂浸渍玻璃纤维直流套管研制方法 Download PDFInfo
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- WO2022027889A1 WO2022027889A1 PCT/CN2020/134362 CN2020134362W WO2022027889A1 WO 2022027889 A1 WO2022027889 A1 WO 2022027889A1 CN 2020134362 W CN2020134362 W CN 2020134362W WO 2022027889 A1 WO2022027889 A1 WO 2022027889A1
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- Prior art keywords
- core body
- bushing
- flange
- epoxy resin
- glass fiber
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 69
- 239000003365 glass fiber Substances 0.000 title claims abstract description 27
- 239000003822 epoxy resin Substances 0.000 title claims abstract description 23
- 229920000647 polyepoxide Polymers 0.000 title claims abstract description 23
- 238000004804 winding Methods 0.000 claims abstract description 58
- 238000013461 design Methods 0.000 claims abstract description 34
- 239000003292 glue Substances 0.000 claims abstract description 29
- 238000003754 machining Methods 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 238000012360 testing method Methods 0.000 claims abstract description 18
- 238000002347 injection Methods 0.000 claims abstract description 15
- 239000007924 injection Substances 0.000 claims abstract description 15
- 239000002131 composite material Substances 0.000 claims abstract description 12
- 239000012212 insulator Substances 0.000 claims abstract description 12
- 238000009413 insulation Methods 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims description 11
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 7
- 239000003973 paint Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- 239000004593 Epoxy Substances 0.000 claims description 4
- 238000002203 pretreatment Methods 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims 1
- 238000004026 adhesive bonding Methods 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 8
- 238000003860 storage Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/26—Lead-in insulators; Lead-through insulators
- H01B17/28—Capacitor type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/42—Means for obtaining improved distribution of voltage; Protection against arc discharges
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/56—Insulating bodies
- H01B17/58—Tubes, sleeves, beads, or bobbins through which the conductor passes
- H01B17/583—Grommets; Bushings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/56—Insulating bodies
- H01B17/64—Insulating bodies with conductive admixtures, inserts or layers
Definitions
- the present disclosure relates to the technical field of DC bushings, in particular to a development method of epoxy resin impregnated glass fiber DC bushings.
- the DC bushing passes through the box or wall with different potentials, plays the role of insulation and mechanical support, and is one of the key equipment to ensure the safe and stable operation of the system.
- Traditional (converter transformer) DC bushings mostly use oil-impregnated paper and rubber-impregnated paper production processes, but oil-impregnated paper bushings have the risk of oil leakage, rubber-impregnated paper bushings are easy to absorb moisture, and multiple sets occur during system operation. Tube failures and accidents.
- the DC bushing (converter transformer) produced by epoxy resin impregnated glass fiber process is a pure solid structure, which is oil-free, non-decomposition, maintenance-free, and has excellent mechanical strength and shock resistance. , No danger of combustion and explosion; the casing core is made of non-moisture-absorbing material, and the dielectric loss is low.
- the purpose of the embodiments of the present disclosure is to provide a method for developing an epoxy resin impregnated glass fiber DC bushing.
- a method for developing an epoxy resin impregnated glass fiber DC bushing comprising:
- the design parameters of the casing are selected, the winding machine program is determined according to the design parameters of the casing, and the core body is wound according to the winding machine program; During the winding process, the core body begins to solidify initially;
- the core body is wound, the core body is cured by the oven according to the preset oven temperature and duration;
- the cured core is machined according to the preset core design drawings.
- every two layers of capacitive screen or resistive screen have the same thickness, and the thickness of each layer of capacitive screen or resistive screen takes the design parameters of the bushing within 2.5mm-5mm.
- the winding temperature in the winding machine program is 90°C-120°C.
- the rough machining feed amount is not greater than 0.5 mm, and the finishing machining amount is not greater than 0.1 mm.
- the method further includes: after the glue injection is performed at the position of the glue injection hole of the flange, it is allowed to stand for 24 hours.
- the method further includes: after grinding and cleaning the inner wall of the flange, evenly applying adhesive to the inner wall of the flange.
- the method further includes: after pretreatment by heating in an oven, fixing a flange and installing a sealing ring on the core body.
- the method further includes: sequentially assembling a bus ring, a hollow composite insulator, and a pressure-equalizing sealing cover to the core body that has been glued, and before installing the conductive rod, the wiring board and the pressure-equalizing ball, Finished core body oil immersed end is painted.
- the embodiments of the present disclosure provide a method for developing an epoxy resin impregnated glass fiber DC bushing. Has the following beneficial effects:
- epoxy resin impregnated glass fiber is used for winding at a high temperature of 90°C-120°C, which promotes the initial curing process of the core;
- the thickness of the capacitive screen or resistive screen is designed to be 2.5mm-5mm, which realizes the reasonable distribution of the field strength of the casing, and the equal thickness design method reduces the difficulty of the casing core winding process;
- the casing is connected to the end screen near the flange or
- the bus ring connected to the voltage screen is grounded to release the accumulated charge (or space accumulated charge) generated during operation to ensure reliable operation of the product.
- FIG. 1 is a schematic flow chart of a method for developing an epoxy resin impregnated glass fiber DC bushing according to an embodiment of the disclosure
- FIG. 2 is a schematic diagram of a DC bushing core body according to an embodiment of the present disclosure (converter transformer);
- FIG 3 is a schematic diagram of the connection between the end screen of the DC bushing core body or the indoor end of the voltage screen and the bus ring according to an embodiment of the present disclosure (converter transformer);
- FIG. 4 is a schematic diagram of the connection between the end screen of the DC bushing core body or the outer end of the voltage screen and the bus ring according to an embodiment of the disclosure (converter transformer);
- FIG. 1 is a schematic flowchart of a method for developing an epoxy resin-impregnated glass fiber DC bushing according to an embodiment of the present disclosure; as shown in FIG. The methods described include:
- Step 11 According to the length parameters of each layer of capacitive screen or resistive screen designed according to the insulation requirements, select the design parameters of the casing, determine the winding machine program according to the casing design parameters, and perform core winding according to the winding machine program; wherein, During the core winding process, the core begins to solidify initially;
- Step 12 After the core body is wound, the core body is cured by the oven according to the preset oven temperature and duration;
- Step 13 Machining the cured core body according to the preset core body design drawing
- Step 14 After grinding and cleaning the inner wall of the flange and pre-heating it in an oven, inject glue at the position of the flange injection hole to glue the core body and the flange;
- Step 15 Assemble the bus ring, hollow composite insulator, pressure-equalizing sealing cover, and install the conductive rod, the terminal board and the pressure-equalizing ball in sequence to the core body that has been glued;
- Step 16 Carry out various detection tests of the casing according to the preset standard of casing for the DC system.
- Fig. 2 is a schematic diagram of the DC bushing core according to an embodiment of the disclosure (converter transformer); as shown in Fig. 2, a represents the thickness of every two layers of capacitive screens (or resistive screens) in the DC bushing core, and b1 and b2 represent the DC bushing A two-layer capacitive screen (or resistive screen) of the die body.
- the upper and lower sides of the “rectangle” in FIG. 2 are capacitive screens (or resistive screens), and a represents the thickness of two layers of capacitive screens (or resistive screens).
- every two layers of capacitive screen or resistive screen have the same thickness, and the thickness of each layer of capacitive screen or resistive screen takes the design parameters of the bushing within 2.5 millimeters (mm)-5 mm.
- the winding temperature obtained in the winding machine program is 90°C-120°C.
- the rough machining feed amount is not greater than 0.5 mm, and the finishing machining amount is not greater than 0.1 mm.
- the method further includes: after the glue injection is performed at the position of the glue injection hole of the flange, it is allowed to stand for 24 hours.
- the method further includes: after grinding and cleaning the inner wall of the flange, evenly applying adhesive to the inner wall of the flange.
- the method further includes: after pretreatment by heating in an oven, fixing a flange and installing a sealing ring on the core body.
- the method further includes: sequentially assembling a bus ring, a hollow composite insulator, and a pressure-equalizing sealing cover to the core body that has been glued, and before installing the conductive rod, the wiring board and the pressure-equalizing ball, Finished core body oil immersed end is painted.
- FIG. 3 is a schematic diagram of the connection between the end screen of the DC bushing core body or the indoor end of the voltage screen and the bus ring according to the embodiment of the present disclosure (converter transformer);
- FIG. 4 is the end screen of the DC bushing core body according to the embodiment of the present disclosure (converter transformer). Or a schematic diagram of the connection between the outdoor end of the voltage screen and the bus ring;
- the various detection tests of the casing are carried out according to the preset standard of the casing for the DC system.
- the preset GB/T22674-2008 standard can be used to carry out the various detection tests of the casing; among which, the GB/T22674 -The 2008 standard is the national standard of the People's Republic of China and the standard for bushings for DC systems.
- the embodiments of the present disclosure are not limited to the above-mentioned bushing standards for DC systems.
- the embodiment of the present disclosure provides a method for developing an epoxy resin impregnated glass fiber DC bushing, and the method includes:
- Core winding according to the length parameters of each layer of capacitive screen or resistive screen designed according to the insulation requirements, select the thickness of every two layers of capacitive screen or resistive screen is equal and the thickness of each layer of capacitive screen or resistive screen is 2.5mm. parameters, determine the winding machine program according to the casing design parameter settings, and perform core winding according to the winding machine program; wherein, the winding temperature in the winding machine program is 90 ° C, and during the core winding process, the core body is also gradually and initially solidified;
- the core body is cured; after the core body is wound, it is sent to the oven, and cured according to the pre-set reasonable oven temperature and duration to ensure that the core body is completely cured;
- Embodiments of the present disclosure also provide a method for developing an epoxy resin impregnated glass fiber DC bushing, the method comprising:
- Core winding according to the length parameters of each layer of capacitive screen or resistive screen designed according to insulation requirements, select the bushing design parameters with equal thickness of each two layers of capacitors and the thickness of each layer of capacitive screen or resistive screen as 3mm.
- the design parameters determine the winding machine program, and the core body is wound according to the winding machine program; wherein, the winding temperature in the winding machine program is 95 ° C, and the core body is also gradually and initially solidified during the winding process of the core body;
- the core body is cured; after the core body is wound, it is sent to the oven, and cured according to the pre-set reasonable oven temperature and duration to ensure that the core body is completely cured;
- Embodiments of the present disclosure also provide a method for developing an epoxy resin impregnated glass fiber DC bushing, the method comprising:
- Core winding according to the length parameters of each layer of capacitive screen or resistive screen designed according to the insulation requirements, select the thickness of every two layers of capacitive screen or resistive screen is equal and the thickness of each layer of capacitive screen or resistive screen is 3.5mm. parameters, determine the winding machine program according to the casing design parameters, and perform the core winding according to the winding machine program; wherein, the winding temperature in the winding machine program is 100 °C, and the core body is also in the process of winding the core body. gradually solidified;
- the core body is cured; after the core body is wound, it is sent to the oven, and cured according to the pre-set reasonable oven temperature and duration to ensure that the core body is completely cured;
- Embodiments of the present disclosure also provide a method for developing an epoxy resin impregnated glass fiber DC bushing, the method comprising:
- Core winding according to the length parameters of each layer of capacitive screen or resistive screen designed according to the insulation requirements, select the design parameters of the casing with the thickness of each two layers of capacitors being equal and the thickness of each layer of capacitive screen or resistive screen taking 4mm, according to the casing design parameters.
- the design parameters determine the winding machine program, and the core body is wound according to the winding machine program; wherein, the winding temperature in the winding machine program is 110 ° C, and the core body is also gradually and initially solidified during the winding process of the core body;
- the core body is cured; after the core body is wound, it is sent to the oven, and a reasonable oven temperature and duration are set to ensure that the core body is completely cured;
- the solidified core body is processed by machining; according to the core body design drawing, the rough machining feed is 0.4mm, and the finishing feed is 0.08mm, and the core body machining is completed;
- Embodiments of the present disclosure also provide a method for developing an epoxy resin impregnated glass fiber DC bushing, the method comprising:
- Core winding according to the length parameters of each layer of capacitive screen or resistive screen designed according to the insulation requirements, select the bushing design parameters that each two layers of capacitive screen or resistive screen have the same thickness and the thickness of each layer of capacitive screen or resistive screen is 5mm , determine the winding machine program according to the casing design parameters, and perform the core winding according to the winding machine program; wherein, the winding temperature in the winding machine program is 120 ° C, in the process of core winding, the core is gradually initial curing;
- the core body is cured; after the core body is wound, it is sent to the oven, and cured according to the pre-set reasonable oven temperature and duration to ensure that the core body is completely cured;
- (converter transformer) DC bushing adopts flange to support the capacitor core body of the overall structure.
- the core body, the pressure insulating tube with bellows, and the end cover are sealed and locked to form SF6 gas. cavity. Not in the same cavity as the conductive tube.
- the core body expands and contracts independently through the bellows, and the conductive rod can expand and contract freely in the central cavity.
- the two materials are different and the expansion ratio is different, so they cannot produce equivalent expansion and contraction, so expansion and contraction in different cavities do not affect each other, and do not affect the sealing structure in the two cavities.
- One end of the conductor is directly fixed with the pressure equalizing cover to form a single cavity of SF6, and all the sealing structures are static sealing.
- the conductor is in plane contact with the pressure equalizing cover to increase the diversion contact area.
- the current density of the plane contact is designed to be 0.2-0.35A/mm2.
- epoxy resin impregnated glass fiber is used for winding at a high temperature of 90°C-120°C, which promotes the initial curing process of the core;
- the thickness of each layer of capacitive screen (or resistive screen) is designed to be 2.5mm-5mm, to achieve a reasonable distribution of the field strength of the casing, and the equal thickness design method reduces the difficulty of the casing core winding process; the inside of the casing is close to the flange
- the aforementioned program may be stored in a computer-readable storage medium, and when the program is executed, execute Including the steps of the above method embodiment; and the aforementioned storage medium includes: a mobile storage device, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk and other various A medium on which program code can be stored.
- ROM read-only memory
- RAM random access memory
- magnetic disk or an optical disk and other various A medium on which program code can be stored.
- the above-mentioned integrated units of the present disclosure are implemented in the form of software functional modules and sold or used as independent products, they may also be stored in a computer-readable storage medium.
- the computer software products are stored in a storage medium and include several instructions for A computer device (which may be a personal computer, a server, or a network device, etc.) is caused to execute all or part of the methods described in the various embodiments of the present invention.
- the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic disk or an optical disk and other mediums that can store program codes.
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Abstract
Description
Claims (8)
- 一种环氧树脂浸渍玻璃纤维直流套管研制方法,所述方法包括:依据绝缘要求设计的每层电容屏或电阻屏长度参数,选取套管设计参数,根据所述套管设计参数确定缠绕机程序,按照所述缠绕机程序进行芯体绕制;其中,在芯体绕制过程中,芯体开始初步固化;芯体绕制完成后,按照预先设置的烘箱温度和持续时间,通过烘箱对芯体进行固化;对固化后的芯体,按照预设芯体设计图纸进行机械加工;对法兰内壁打磨清理、且通过烘箱加热预处理之后,在法兰注胶孔位置进行注胶,进行芯体与法兰的胶装;对胶装完成的芯体依次装配汇流环、空心复合绝缘子、均压密封盖,安装导电杆及接线板和均压球;依据预设直流系统用套管标准进行套管各项检测试验。
- 根据权利要求1所述的一种环氧树脂浸渍玻璃纤维直流套管研制方法,其中,每两层电容屏或电阻屏厚度相等且每层电容屏或电阻屏的厚度取2.5mm-5mm内的套管设计参数。
- 根据权利要求1所述的一种环氧树脂浸渍玻璃纤维直流套管研制方法,其中,所述缠绕机程序中的缠绕温度为90℃-120℃。
- 根据权利要求1所述的一种环氧树脂浸渍玻璃纤维直流套管研制方法,其中,对固化后的芯体进行机械加工过程中,粗加工进刀量不大于0.5mm,精加工进刀量不大于0.1mm。
- 根据权利要求1所述的一种环氧树脂浸渍玻璃纤维直流套管研制方法,其中,所述方法还包括:在法兰注胶孔位置进行注胶之后,静放24小时。
- 根据权利要求1所述的一种环氧树脂浸渍玻璃纤维直流套管研制方 法,其中,所述方法还包括:对法兰内壁打磨清理后,法兰内壁均匀涂抹粘接剂。
- 根据权利要求1所述的一种环氧树脂浸渍玻璃纤维直流套管研制方法,其中,所述方法还包括:通过烘箱加热预处理后,在芯体固定法兰并安装密封圈。
- 根据权利要求1所述的一种环氧树脂浸渍玻璃纤维直流套管研制方法,其中,所述方法还包括:对胶装完成的芯体依次装配汇流环、空心复合绝缘子、均压密封盖,安装导电杆及接线板和均压球之前,将胶装完成的芯体浸油端进行喷漆处理。
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US17/913,873 US20230343489A1 (en) | 2020-08-06 | 2020-12-07 | Method for developing epoxy resin impregnated glass fiber dc bushing |
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CN202010782781.XA CN112002504A (zh) | 2020-08-06 | 2020-08-06 | 一种环氧树脂浸渍玻璃纤维直流套管研制方法 |
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CN114420393A (zh) * | 2022-01-11 | 2022-04-29 | 国网电力科学研究院武汉南瑞有限责任公司 | 一种gis出线套管的生产方法、记录媒体及系统 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201402952Y (zh) * | 2009-04-03 | 2010-02-10 | 褚斌 | 干式高压套管 |
CN102146195A (zh) * | 2010-02-04 | 2011-08-10 | 苏州国宇碳纤维科技有限公司 | 改性碳纤维增强环氧树脂基复合棒材 |
US20180144846A1 (en) * | 2015-05-26 | 2018-05-24 | Hyosung Corporation | Capacitor bushing and manufacturing method therefor |
CN207883411U (zh) * | 2017-12-18 | 2018-09-18 | 临泽县锐翔科技开发有限责任公司 | 一种耐低氟化合物腐蚀的胶浸玻璃纤维绝缘套管 |
CN112002504A (zh) * | 2020-08-06 | 2020-11-27 | 国网电力科学研究院武汉南瑞有限责任公司 | 一种环氧树脂浸渍玻璃纤维直流套管研制方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101315834B (zh) * | 2008-06-23 | 2011-04-27 | 南京电气(集团)有限责任公司 | 不等电容、不等台阶、分段等厚度电容芯子的设计方法 |
CN105070428A (zh) * | 2015-07-24 | 2015-11-18 | 南京电气高压套管有限公司 | 交直流互换型玻璃钢穿墙套管及其生产方法 |
CN107508224B (zh) * | 2016-06-14 | 2023-10-20 | 沈阳和新套管有限公司 | 一种直流穿墙套管中气体绝缘端的芯体胶装结构及方法 |
CN108492945A (zh) * | 2018-05-03 | 2018-09-04 | 江苏神马电力股份有限公司 | 绝缘套管 |
EP3579252A1 (en) * | 2018-06-04 | 2019-12-11 | ABB Schweiz AG | Removable bushing flange |
CN110783721A (zh) * | 2019-02-02 | 2020-02-11 | 搏世因(北京)高压电气有限公司 | ±160kV低温超导套管 |
CN209544034U (zh) * | 2019-03-11 | 2019-10-25 | 江苏神马电力股份有限公司 | 电容芯子以及变压器套管 |
CN209461225U (zh) * | 2019-03-20 | 2019-10-01 | 西安高缘立达电气有限公司 | 一种固体绝缘高压电容套管芯 |
-
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- 2020-08-06 CN CN202010782781.XA patent/CN112002504A/zh active Pending
- 2020-12-07 WO PCT/CN2020/134362 patent/WO2022027889A1/zh active Application Filing
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201402952Y (zh) * | 2009-04-03 | 2010-02-10 | 褚斌 | 干式高压套管 |
CN102146195A (zh) * | 2010-02-04 | 2011-08-10 | 苏州国宇碳纤维科技有限公司 | 改性碳纤维增强环氧树脂基复合棒材 |
US20180144846A1 (en) * | 2015-05-26 | 2018-05-24 | Hyosung Corporation | Capacitor bushing and manufacturing method therefor |
CN207883411U (zh) * | 2017-12-18 | 2018-09-18 | 临泽县锐翔科技开发有限责任公司 | 一种耐低氟化合物腐蚀的胶浸玻璃纤维绝缘套管 |
CN112002504A (zh) * | 2020-08-06 | 2020-11-27 | 国网电力科学研究院武汉南瑞有限责任公司 | 一种环氧树脂浸渍玻璃纤维直流套管研制方法 |
Non-Patent Citations (1)
Title |
---|
"Assembly Process Of Transformer", 30 June 1998, XINHUA BOOKSTORE BEIJING PUBLISHING OFFICE, CN, ISBN: 7-111-06069-5, article LOCAL RECORDS OF TRANSFORMER MANUFACTURING TECHNOLOGY, EDITORIAL BOARD: "Passage; Transformer Assembly Process", pages: 70 - 71, XP009534118 * |
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