WO2015033434A1 - 電力用開閉装置用の絶縁支持体 - Google Patents
電力用開閉装置用の絶縁支持体 Download PDFInfo
- Publication number
- WO2015033434A1 WO2015033434A1 PCT/JP2013/074066 JP2013074066W WO2015033434A1 WO 2015033434 A1 WO2015033434 A1 WO 2015033434A1 JP 2013074066 W JP2013074066 W JP 2013074066W WO 2015033434 A1 WO2015033434 A1 WO 2015033434A1
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- WIPO (PCT)
- Prior art keywords
- insulating support
- power switchgear
- core
- embedded
- core member
- Prior art date
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- 238000009413 insulation Methods 0.000 title abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 29
- 229920005989 resin Polymers 0.000 claims abstract description 15
- 239000011347 resin Substances 0.000 claims abstract description 15
- 229920001971 elastomer Polymers 0.000 claims abstract description 12
- 230000002093 peripheral effect Effects 0.000 claims description 25
- 239000003822 epoxy resin Substances 0.000 claims description 7
- 229920000647 polyepoxide Polymers 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 5
- 229920002379 silicone rubber Polymers 0.000 claims description 4
- 239000004945 silicone rubber Substances 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 abstract description 6
- 239000011162 core material Substances 0.000 description 87
- 238000005266 casting Methods 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 10
- 239000012212 insulator Substances 0.000 description 7
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000011151 fibre-reinforced plastic Substances 0.000 description 5
- 238000011109 contamination Methods 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
Images
Classifications
-
- 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
- H01B17/14—Supporting insulators
- H01B17/16—Fastening of insulators to support, to conductor, or to adjoining insulator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/01—Frameworks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
-
- 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
- H01B17/32—Single insulators consisting of two or more dissimilar insulating bodies
Definitions
- the present invention relates to an insulating support applied to a power switchgear disposed between a generator and a main transformer.
- a current-carrying part that is a main body is insulated and supported by an insulating support in the atmosphere (for example, see Patent Document 1).
- this insulating support needs to support a heavy current-carrying part, it is generally composed of an epoxy cast insulator having mechanical strength.
- the insulating support is provided with a fold portion for securing the leakage length in consideration of the influence of contamination.
- the fold portion is cast with an epoxy resin integrally with the core portion.
- Patent Document 2 discloses an insulator for continuously forming a rubber jacket having a cap portion on the outer periphery by sequentially moving a long core made of FRP (Fiber Reinforced Plastics) or epoxy resin. A molding method and a molding apparatus are described. Thereby, it is supposed that a lever can be shape
- FRP Fiber Reinforced Plastics
- the conventional insulating support for a power switchgear integrally molds the core part and the pleat part with an epoxy-based resin, which complicates the mold structure and causes sink marks or voids at the time of casting.
- burrs and the like are likely to occur, and it is necessary to process the crease part after casting, resulting in a problem that manufacturing takes time and costs increase.
- the insulating support for the power switchgear is required to have a mechanical strength that can withstand the load of the energized portion, it is difficult to apply the insulator molding method as it is.
- the present invention has been made in view of the above, and an object thereof is to provide an insulating support for a power switchgear that is easy and inexpensive to manufacture and has excellent mechanical strength and insulation performance.
- an insulating support for a power switchgear includes a main body of a power switchgear disposed between a generator and a main transformer.
- An insulating support for a power switchgear that is insulated and supported in the atmosphere, wherein the core is formed of only a cylindrical material or a truncated cone shape made of a resin material, and a rubber material.
- An outer cover portion having a plurality of pleat portions that are mounted on the outer peripheral surface of the material portion and are arranged apart from each other in the axial direction of the core material portion and provided over the entire circumference of the core material portion;
- a second end fitting having a second base end portion disposed outside the core member portion and connected to the second embedded portion and installed on the ground plane.
- an insulating support for a power switchgear that is easy and inexpensive to manufacture and has excellent mechanical strength and insulation performance.
- FIG. 1 is a side view of a power switchgear according to Embodiment 1.
- FIG. 2 is a cross-sectional view taken along the line AA in FIG.
- FIG. 3 is a side view showing the configuration of the insulating support according to the first embodiment.
- FIG. 4 is a longitudinal sectional view showing the configuration of the insulating support according to the first embodiment.
- FIG. 5 is a longitudinal sectional view showing a configuration of an insulating support according to a modification of the first embodiment.
- FIG. 6 is a side view showing the configuration of the insulating support according to the second embodiment.
- FIG. 7 is a longitudinal sectional view showing the configuration of the insulating support according to the second embodiment.
- FIG. 8 is an enlarged cross-sectional view of the fold portion of the second embodiment.
- FIG. 9 is a longitudinal sectional view showing the configuration of the insulating support according to the third embodiment.
- FIG. 10 is an enlarged cross-sectional view of the fold portion of the third embodiment.
- FIG. 1 is a side view of a power switchgear according to the present embodiment. 2 is a cross-sectional view taken along the line AA in FIG.
- the power switchgear 1 is disposed between a generator (not shown) and a main transformer (not shown) in a power plant or the like.
- the power switchgear 1 includes a circuit breaker 20, a disconnecting device 21 connected to the circuit breaker 20, and insulating supports 3, 3 a, 3 b that support the circuit breaker 20 and the disconnecting device 21.
- the circuit breaker 20 and the disconnector 21 constitute a main body of the power switchgear.
- the circuit breaker 20 is configured to have a circuit breaker in a metal container.
- the disconnector 21 has a disconnection part in the metal container.
- the circuit breaker 20 is connected to the bus-line 30a, and the disconnector 21 is connected to the bus-line 30b.
- the insulating supports 3, 3a, 3b are installed on the ground plane 2, and insulate and support the main body of the power switchgear in the atmosphere.
- positioning location and number of an insulation support body are not limited to the example of illustration.
- the power switchgear 1 and the buses 30a and 30b are respectively arranged in the jacket, the jacket is not shown in FIGS. 1 and 2.
- FIG. 3 is a side view showing the configuration of the insulating support according to the present embodiment
- FIG. 4 is a longitudinal sectional view showing the configuration of the insulating support according to the present embodiment.
- the structure of the insulation support body 3 is demonstrated below, it is the same also about the structure of the insulation support bodies 3a and 3b.
- the insulating support 3 includes a core part 7, a jacket part 8 attached to the outer peripheral surface of the core part 7, and end fittings 6 a and 6 b provided at both ends of the core part 7. .
- the core material portion 7 is a cylindrical solid insulator formed only of a resin material.
- the resin material may be any material that realizes the strength to withstand the support of the main body of the power switch as the energization unit, and is, for example, an epoxy resin.
- the core part 7 is formed by casting a resin material. Although the magnitude
- the jacket portion 8 includes a plurality of fold portions 8a and a trunk portion 8b that connects the fold portions 8a.
- the jacket portion 8 is formed only from a rubber material.
- the rubber material is, for example, silicone rubber.
- the plurality of pleat portions 8 a are arranged away from each other in the axial direction of the core member 7.
- the fold part 8a is provided over the entire circumference of the core part 7, and is provided so as to protrude from the body part 8b in the outer diameter direction.
- the trunk portion 8b is formed integrally with the fold portion 8a.
- the body portion 8b has a cylindrical shape with a substantially constant thickness. Since the insulating support 3 is disposed in the atmosphere, there is a possibility that leakage current flows on the surface due to contamination. However, the provision of the fold portion 8a ensures the leakage length and prevents the generation of leakage current.
- the outer jacket portion 8 is formed separately from the core material portion 7 and then adhered to the outer peripheral surface of the core material portion 7.
- the jacket portion 8 can be provided by arranging the core portion 7 in a mold and casting a rubber material.
- An end fitting 6a (first end fitting) is provided at the upper end of the core member 7.
- the end fitting 6a is connected to the embedded portion 16a (first embedded portion) embedded in the core material portion 7 and the embedded portion 16a outside the core material portion 7 and to the main body portion of the power switchgear.
- a base end portion 17a (first base end portion) to be attached.
- the embedded portion 16a swells toward the lower end portion of the core portion 7 and has a rounded surface with no corners on the lower end portion side.
- the base end portion 17a is formed integrally with the embedded portion 16a and has, for example, a flat surface on the upper portion, and the main body portion of the power switchgear is mounted on the surface.
- the cross section of the base end portion 17a is larger than the cross section of the embedded portion 16a.
- the embedded portion 16 a is attached to the upper end portion of the core material portion 7 when the core material portion 7 is cast.
- An end fitting 6b (second end fitting) is provided at the lower end of the core member 7.
- the end fitting 6b is disposed on the ground surface 2 while being connected to the embedded portion 16b by being disposed outside the embedded portion 16b (second embedded portion) embedded in the core portion 7 and the embedded portion 16b.
- a base end portion 17b (second base end portion).
- the embedded portion 16b swells toward the upper end portion of the core member portion 7, and has a rounded surface without corners on the upper end portion side.
- the base end portion 17 b is formed integrally with the embedded portion 16 b and has, for example, a flat surface at the lower portion, and this surface is placed on the grounding surface 2.
- the cross section of the base end portion 17b is larger than the cross section of the embedded portion 16b.
- the embedded portion 16 b is attached to the lower end portion of the core material portion 7 when the core material portion 7 is cast.
- the core portion 7 is formed in a columnar shape that is easy to manufacture, and an outer cover portion 8 having a fold portion 8a is mounted on the outer peripheral surface thereof.
- the core part 7 cylindrical, the structure of the mold is simplified, the occurrence of sink marks or voids during casting is suppressed, the need for deburring after casting is also suppressed, and manufacturing is easy and inexpensive. It becomes.
- the outer jacket portion 8 is formed separately from the core material portion 7, the number and shape of the fold portions 8 a can be set independently of the manufacture of the core material portion 7.
- the core part and the crease part are casted integrally with epoxy resin, so that the structure of the mold becomes complicated, and sink marks or voids at the time of casting It is easy to occur, and processing such as deburring of the folds on the split surface of the mold is necessary after casting, which takes time and costs for manufacturing.
- the insulating support may not be used, resulting in a low yield.
- the folds are easily broken during transportation.
- the core material portion 7 has a columnar shape that is easy to manufacture, and therefore the yield is high. Moreover, even if sink marks or voids are generated, the jacket portion 8 does not affect the strength as a support. Further, even if sink marks or voids exist in the jacket portion 8, the jacket portion 8 is placed in the atmosphere, so that it does not cause partial discharge. Moreover, since the jacket portion 8 is flexible, it is not damaged during transportation. Even when the number of pleat portions is changed in accordance with the change in the leakage length, only the jacket portion 8 may be manufactured again.
- the core part 7 can be made into a solid frustum shape, for example besides a column shape, and the same effect is acquired.
- the radius of the upper end and the radius of the lower end of the core member 7 are slightly different, the same effect as in the case of a cylinder is obtained.
- the core part 7 is formed only of a resin material. Therefore, the core material portion 7 is less likely to be deteriorated in insulation as compared with the case where it is formed by FRP. That is, the insulating supports 3, 3a, 3b are affected by moisture absorption because they are used in the atmosphere, but by forming only with the resin, the insulating supports 3, 3a, 3b are affected by moisture absorption compared to the case of forming with FRP containing reinforcing fibers. Less susceptible to insulation degradation. Moreover, the strength of the core material portion 7 can be ensured by forming the core material portion 7 with an epoxy-based resin material as compared with the case of forming with the FRP.
- the end fittings 6a, 6b are provided on the insulating supports 3, 3a, 3b, respectively, in order to avoid damage to the insulating supports 3, 3a, 3b due to the load of the current-carrying part. .
- the insulator described in Patent Document 2 is different from an insulating support for a power switchgear, it does not include a metal fitting for reinforcing such strength.
- the embedded portion 16a has a rounded surface with no corners raised toward the lower end of the core portion 7. By doing so, it is possible to relieve the electric field leaking from the energizing portion and also relieve the stress applied to the upper end portion of the core portion 7. Moreover, since the contact area with the core part 7 increases compared with the case where the embedding part 16a is made into a disk shape, the adhesive strength with the core part 7 increases. The same applies to the embedded portion 16b.
- the embedded portion 16a and the base end portion 17a are integrally formed, but a separately formed member may be fastened with a fastening member.
- the embedded portion 16b and the base end portion 17b may be formed separately and fastened with a fastening member.
- FIG. 5 is a longitudinal sectional view showing a configuration of an insulating support according to a modification of the present embodiment.
- the embedded portion 16a and the base end portion 17a are fastened to constitute the end fitting 6a
- the buried portion 16b and the base end portion 17b are fastened to constitute the end fitting 6b.
- the core portion 7 and the embedded portions 16a and 16b are manufactured by casting, and then embedded.
- the base end portion 17a can be fastened to the portion 16a, and the base end portion 17b can be fastened to the embedded portion 16b.
- the mold structure becomes simpler. Further, in such a manufacturing method, the core material portion 7 and the embedded portions 16a and 16b that are integrated after casting can be extracted in the axial direction without breaking the mold.
- a knurl 18a is provided on the surface of the embedded portion 16a, and a knurl 18b is also provided on the surface of the embedded portion 16b.
- the knurls 18a are a plurality of small grooves provided on the surface of the embedded portion 16a that comes into contact with the core portion 7, and the adhesive strength between the embedded portion 16a and the core portion 7 is further increased.
- the knurling 18b may be provided in the configuration of FIG. Other configurations in FIG. 5 are the same as those in FIG.
- the present embodiment it is possible to provide the insulating supports 3, 3a, 3b that are easy to manufacture and inexpensive. Further, since the insulating supports 3, 3 a, 3 b are excellent in insulation performance and mechanical strength, it is possible to support the current-carrying portion of the power switchgear 1 that has been increased in voltage and capacity. Therefore, according to the present embodiment, it is possible to obtain the power switchgear 1 having a high voltage and a large capacity.
- FIG. 6 is a side view showing the configuration of the insulating support according to the present embodiment
- FIG. 7 is a longitudinal sectional view showing the configuration of the insulating support according to the present embodiment
- FIG. It is a cross-sectional enlarged view of a fold part.
- the overall configuration of the power switchgear 1 is the same as that shown in FIGS.
- the insulating support 3 includes a core material portion 9, a plurality of pleat portions 10 as jacket portions attached to the outer peripheral surface of the core material portion 9, and the core material portion 9. End fittings 6a and 6b provided at both ends of the.
- the core member 9 is a solid insulator having a cylindrical shape or a truncated cone shape that is formed only of a resin material.
- the resin material is not particularly limited as long as it realizes strength sufficient to support the main body of the power switchgear, and is, for example, an epoxy resin.
- a plurality of folds 10 are arranged apart from each other in the axial direction of the core member 9.
- Each fold portion 10 is provided over the entire circumference of the core portion 9.
- the folds 10 are separated from each other, and the outer peripheral surface of the core member 9 is exposed between the folds 10. That is, in the present embodiment, the jacket portion is configured only by the plurality of fold portions 10.
- Each fold portion 10 is formed of only a rubber material.
- the rubber material is, for example, silicone rubber. Since the insulating support 3 is disposed in the atmosphere, there is a possibility that a leakage current flows on the surface due to contamination. However, the provision of the fold portion 10 ensures the leakage length and prevents the generation of the leakage current.
- Each fold part 10 has a protrusion 12 on the mounting surface to the core part 9.
- the protrusion 12 is provided, for example, over the entire circumference of the core member 9.
- a groove portion 11 into which the projection portion 12 of each fold portion 10 is fitted is provided on the outer peripheral surface of the core member portion 9, a groove portion 11 into which the projection portion 12 of each fold portion 10 is fitted is provided.
- the groove portion 11 is a portion that serves as a mounting seat for the fold portion 10, and is provided according to the shape of the protruding portion 12.
- the groove portion 11 can be formed by cutting out the outer peripheral surface of the core material portion 9 after the core material portion 9 is cast. It is also possible to form the groove 11 by casting.
- Each fold portion 10 is formed separately from the core material portion 9 and then bonded to the outer peripheral surface of the core material portion 9. At this time, the protrusion 12 is fitted into the groove 11 provided in the core member 9.
- the end fittings 6a and 6b are the same as those in the first embodiment.
- the ridge portion 10 is provided with the protrusion portion 12, the groove portion 11 is provided on the outer peripheral surface of the core material portion 9, and the ridge portion 10 is bonded to the outer peripheral surface of the core material portion 9. Is fitted into the groove portion 11, so that the fold portion 10 can be easily attached.
- the fixing location, the number, and the interval of the folds 10 can be easily adjusted.
- the groove portion 11 is formed by cutting out the outer peripheral surface of the core portion 9, the position where the groove portion 11 as the notch portion is provided is adjusted according to the fixing location, the number, the interval, and the like of the fold portion 10. That's fine.
- the groove portions 11 may be provided in the axial direction at regular intervals, for example, and the fixing portion, the number, and the interval of the fold portions 10 may be adjusted by selecting the groove portions 11 for actually fixing the fold portions 10. it can.
- FIG. 9 is a longitudinal sectional view showing the configuration of the insulating support according to the present embodiment
- FIG. 10 is an enlarged sectional view of the fold portion of the present embodiment.
- the overall configuration of the power switchgear 1 is the same as that shown in FIGS.
- the insulating support 3 includes a core member 13, a plurality of pleats 14 as a jacket portion attached to the outer peripheral surface of the core member 13, and the core member 13. End fittings 6a and 6b provided at both ends of the.
- the core member 13 is a solid insulator having a cylindrical shape or a truncated cone shape that is formed only of a resin material.
- the resin material may be any material that realizes the strength to withstand the support of the main body of the power switch as the energization unit, and is, for example, an epoxy resin.
- a plurality of folds 14 are arranged apart from each other in the axial direction of the core member 13.
- Each fold portion 14 is provided over the entire circumference of the core member 13.
- the folds 14 are separated from each other, and the outer peripheral surface of the core member 13 is exposed between the folds 14. That is, in the present embodiment, the jacket portion is configured only by the plurality of fold portions 14.
- Each fold portion 14 is formed of only a rubber material.
- the rubber material is, for example, silicone rubber. Since the insulating support 3 is disposed in the atmosphere, there is a possibility that a leakage current flows on the surface due to contamination. However, the provision of the fold portion 14 ensures the leakage length and prevents the generation of the leakage current.
- Each fold part 14 has a groove part 15 on the mounting surface to the core part 13.
- the groove part 15 is provided over the perimeter of each crease part 14, for example.
- the groove 15 can be a notch.
- the groove portion 15 can also be formed when the fold portion 14 is formed.
- the protruding portion 26 is a portion serving as a mounting seat for the fold portion 14, and is provided according to the shape of the groove portion 15.
- Each fold portion 14 is formed separately from the core material portion 13 and then bonded to the outer peripheral surface of the core material portion 13. At this time, the protruding portion 26 is fitted into the groove portion 15 provided in each fold portion 14.
- the end fittings 6a and 6b are the same as those in the first embodiment.
- the groove portion 15 is provided in the fold portion 14, the protrusion portion 26 is provided on the outer peripheral surface of the core member portion 13, and the protrusion portion 26 is bonded when the fold portion 14 is bonded to the outer peripheral surface of the core member portion 13. Is fitted into the groove portion 15, so that the fold portion 14 can be easily attached.
- the protrusions 26 are provided in the axial direction at regular intervals, for example, and the fixing portions 26 are fixed by selecting the protrusions 26 for actually fixing the protrusions 14. , Number and spacing can also be adjusted.
- the present invention is useful as an insulating support for a power switchgear disposed between a generator and a main transformer in a power plant or the like.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
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- Gas-Insulated Switchgears (AREA)
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- Insulating Bodies (AREA)
Abstract
Description
図1は、本実施の形態に係る電力用開閉装置の側面図である。図2は、図1におけるA-A矢視断面図である。電力用開閉装置1は、発電所等において、発電機(図示せず)と主変圧器(図示せず)との間に配置される。電力用開閉装置1は、遮断器20と、遮断器20に接続された断路器21と、遮断器20および断路器21を支持する絶縁支持体3,3a,3bとを備えている。遮断器20および断路器21は電力用開閉装置の本体部を構成する。遮断器20は、金属容器内に遮断部を有して構成される。断路器21は、金属容器内に断路部を有して構成される。また、遮断器20は母線30aに接続され、断路器21は母線30bに接続されている。絶縁支持体3,3a,3bは、接地面2上に設置され、大気中で電力用開閉装置の本体部を絶縁支持している。なお、絶縁支持体の配置箇所および本数は図示例に限定されない。また、電力用開閉装置1および母線30a,30bは、それぞれ外被内に配置されるが、図1および図2では外被の図示を省略している。
図6は、本実施の形態に係る絶縁支持体の構成を示す側面図、図7は、本実施の形態に係る絶縁支持体の構成を示す縦断面図、図8は、本実施の形態のヒダ部の断面拡大図である。なお、電力用開閉装置1の全体構成は、図1および図2と同様である。
図9は、本実施の形態に係る絶縁支持体の構成を示す縦断面図、図10は、本実施の形態のヒダ部の断面拡大図である。なお、電力用開閉装置1の全体構成は、図1および図2と同様である。
Claims (12)
- 発電機と主変圧器との間に配置された電力用開閉装置の本体部を大気中で絶縁支持する電力用開閉装置用の絶縁支持体であって、
樹脂材料のみで成形された円筒状または円錐台状の中実な芯材部と、
ゴム材料のみで成形され、前記芯材部の外周面に装着されると共に、前記芯材部の軸方向に互いに離れて配置されてそれぞれ前記芯材部の全周にわたって設けられた複数個のヒダ部を有する外被部と、
前記芯材部の一端部に埋め込まれた第1の埋設部と、前記芯材部の外部に配置されて当該第1の埋設部につながると共に前記本体部に取り付けられる第1の基端部と、を有する第1の端部金具と、
前記芯材部の他端部に埋め込まれた第2の埋設部と、前記芯材部の外部に配置されて当該第2の埋設部につながると共に接地面上に設置される第2の基端部と、を有する第2の端部金具と、
を備えることを特徴とする電力用開閉装置用の絶縁支持体。 - 前記外被部は、互いに分離した前記複数個のヒダ部からなり、
前記ヒダ部間では、前記芯材部の外周面が露出していることを特徴とする請求項1に記載の電力用開閉装置用の絶縁支持体。 - 前記各ヒダ部は、前記芯材部への装着面に突起部を有し、
前記芯材部の外周面には、前記各ヒダ部の前記突起部が嵌め込まれる溝部が設けられていることを特徴とする請求項2に記載の電力用開閉装置用の絶縁支持体。 - 前記溝部は、前記芯材部の外周面を切り欠いて設けられていることを特徴とする請求項3に記載の電力用開閉装置用の絶縁支持体。
- 前記各ヒダ部は、前記芯材部への装着面に溝部を有し、
前記芯材部の外周面には、前記各ヒダ部の前記溝部に嵌め込まれる突起部が設けられていることを特徴とする請求項2に記載の電力用開閉装置用の絶縁支持体。 - 前記外被部は、前記ヒダ部間をつなぐ胴部を有することを特徴とする請求項1に記載の電力用開閉装置用の絶縁支持体。
- 前記第1の埋設部と前記第1の基端部とが一体に形成され、
前記第2の埋設部と前記第2の基端部とが一体に形成されていることを特徴とする請求項1~6のいずれか1項に記載の電力用開閉装置用の絶縁支持体。 - 前記第1の埋設部と前記第1の基端部とが締結されて一体となり、
前記第2の埋設部と前記第2の基端部とが締結されて一体となっていることを特徴とする請求項1~6のいずれか1項に記載の電力用開閉装置用の絶縁支持体。 - 前記第1の埋設部は、前記他端部に向かって盛り上がった角のない丸みを帯びた表面を有し、
前記第2の埋設部は、前記一端部に向かって盛り上がった角のない丸みを帯びた表面を有することを特徴とする請求項1~6のいずれか1項に記載の電力用開閉装置用の絶縁支持体。 - 前記第1の埋設部は、前記芯材部と接触する表面にローレットを有し、
前記第2の埋設部は、前記芯材部と接触する表面にローレットを有することを特徴とする請求項9に記載の電力用開閉装置用の絶縁支持体。 - 前記樹脂材料は、エポキシ系の樹脂材料であることを特徴とする請求項1~6のいずれか1項に記載の電力用開閉装置用の絶縁支持体。
- 前記ゴム材料は、シリコーンゴムであることを特徴とする請求項1~6のいずれか1項に記載の電力用開閉装置用の絶縁支持体。
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PCT/JP2013/074066 WO2015033434A1 (ja) | 2013-09-06 | 2013-09-06 | 電力用開閉装置用の絶縁支持体 |
JP2014500195A JP5586808B1 (ja) | 2013-09-06 | 2013-09-06 | 電力用開閉装置用の絶縁支持体 |
US14/916,020 US9929545B2 (en) | 2013-09-06 | 2013-09-06 | Insulating support for power switchgear |
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JP5677641B1 (ja) * | 2014-04-04 | 2015-02-25 | 三菱電機株式会社 | 電気機器の絶縁支持物 |
CN111403128B (zh) | 2020-04-02 | 2021-10-08 | 国家电网有限公司 | 一种用于直流输电的支柱绝缘子及直流输电设备 |
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JPWO2015033434A1 (ja) | 2017-03-02 |
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