WO2020261482A1 - 排気工具及びこれを用いた開閉装置の製造方法 - Google Patents
排気工具及びこれを用いた開閉装置の製造方法 Download PDFInfo
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- WO2020261482A1 WO2020261482A1 PCT/JP2019/025583 JP2019025583W WO2020261482A1 WO 2020261482 A1 WO2020261482 A1 WO 2020261482A1 JP 2019025583 W JP2019025583 W JP 2019025583W WO 2020261482 A1 WO2020261482 A1 WO 2020261482A1
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- WIPO (PCT)
- Prior art keywords
- connector
- main body
- exhaust tool
- exhaust
- insulating plug
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/005—Electrical connection between switchgear cells
Definitions
- the present disclosure relates to an exhaust tool used for assembling the bus connection portion of a switchgear used for system operation of power receiving and distribution equipment.
- the present disclosure has been made in order to solve the above-mentioned problems, and in assembling the bus connection portion of the opening / closing device, it prevents the tool used for exhaust from shifting and efficiently makes the gas between the connector and the insulating plug efficient. It is an object of the present invention to provide an exhaust tool for effectively discharging gas to suppress residual gas and a method for manufacturing an opening / closing device using the exhaust tool.
- the exhaust tool includes a rod-shaped main body portion, a tip portion provided at the end portion of the main body portion, and the inside of a connector of a first electric device provided at the tip portion and having a connector insulating from a bus. It is provided with a through-hole-shaped holding portion that limits the movement of the main body portion by being passed through the first fastening portion arranged in, and a non-penetrating notch portion that is cut adjacent to the holding portion. It is a thing.
- the holding portion provided in the exhaust tool according to the present disclosure is provided along the inner wall of the insulating connector provided in the first electric device having the bus.
- the process of passing through the first fastening part inside the connector connected to the connector, the first fastening part, and the second fastening part provided in the insulating plug of the second electric device are fitted, and the insulating plug is rotated.
- the main body provided in the exhaust tool is interposed between the inner wall of the connector and the outer wall of the insulating plug, and the connector and the insulating plug are separated from the gap created by the main body between the connector and the insulating plug.
- the process of fastening the first fastening part and the second fastening part by discharging the gas between them, and while pulling out the exhaust tool from the connector, cut the notch provided in the exhaust tool and pull the main body part from the connector. It is provided with a step of detaching.
- the movement of the exhaust tool can be restricted by the through-hole-shaped holding portion to secure a ventilation path, and the main body portion of the exhaust tool can be separated from the electric device by cutting the non-penetrating cut portion. Therefore, gas can be efficiently discharged while assembling the bus connection portion.
- FIG. 3 is a cross-sectional view taken along the line MM of FIG. 3 of the exhaust tool according to the first embodiment.
- FIG. 6 is an enlarged schematic view of a part of the main body of the exhaust tool according to the first embodiment.
- the schematic diagram which enlarged the tip part of the exhaust tool which concerns on Embodiment 2. 2 is a plan view of a holding portion and a supporting portion according to the second embodiment.
- FIG. 1 is a schematic view of a lateral cross section of the switchgear according to the first embodiment.
- the switchgear 1 is, for example, a switch gear used for system operation of a power receiving and distributing facility of a substation.
- the disconnector 3 and its operation mechanism are the disconnector operation mechanism 4
- the circuit breaker 5 and its operation mechanism are the circuit breaker operation mechanism 6, the ground switchgear 7, the lightning arrester 8, and so on.
- a current transformer 9 is arranged.
- the circuit breaker 5 cuts off the circuit to prevent the abnormal current from flowing to the system and protects the electric device connected to the switchgear 1.
- the opening / closing device 1 is provided with a bus connecting portion 10.
- the bus connecting portion 10 is connected to the bushing 11 and further connected to the disconnector 3 in the housing 2. At least a part of the first electric device 12 and the second electric device 13 described later is included in the bus connection portion 10.
- FIG. 2 shows an outline of the bus connection portion 10.
- the first electrical device 12 of the bus connection portion 10 includes a bus 14, a connector 15, and a bushing 11.
- the bus 14 and the bushing 11 are inserted into the connector 15 to become the first electric device 12.
- the first electric device 12 is connected to the electric device in the housing 2 of the switchgear 1 via the bushing 11.
- the bus 14 is composed of a bus conductor 16 and an insulating shield 17 surrounding the bus conductor 16.
- the bushing 11 includes a conductive first fastening portion 18, a split terminal 19, and a conductive member 20.
- the first fastening portion 18 is, for example, a stud bolt having male threads on both sides.
- the bushing 11 is inserted into the opening 21 of the connector 15 in the direction of the arrow in FIG.
- the bus 14 is inserted into the opening 21 of the connector 15 in the direction of the arrow in FIG.
- the split terminal 19 of the bushing 11 holds the end of the bus conductor 16, and the side surface of the bus conductor 16 is held by the conductive member 20.
- the second electric device 13 includes an insulating plug 22 and, for example, a grounding device (not shown), and the insulating plug 22 is responsible for insulation between the bus 14 and the second electric device 13. Further, the insulating plug 22 is provided with a second fastening portion 23 having conductivity inside. The second fastening portion 23 is internally threaded so as to fit with the first fastening portion 18. After inserting the bushing 11 and the bus 14 into the connector 15 in the direction of the arrow in FIG. 2, the insulating plug 22 is inserted in the direction of the arrow in FIG. 2 in the connector 15 to fasten the first fastening portion 18 and the second fastening portion 23. The bus connection portion 10 is assembled.
- the bus 14, bushing 11, and insulating plug 22 are inserted into the opening 21 of the connector 15, and the bus connection portion 10 is formed.
- the opening 21 of the connector 15 is closed by the inserted bus 14, the insulating plug 22, and the bushing 11.
- gas tends to remain between the insulating plug 22 and the connector 15.
- the gas near the bus conductor 16 causes a discharge during the operation of the switchgear 1 and causes insulation deterioration. Therefore, it is necessary to sufficiently discharge the gas when assembling the bus connection portion 10.
- FIG. 3A is a plan view of the exhaust tool 24, and FIG. 3B is a side view of the exhaust tool 24.
- the exhaust tool 24 includes a rod-shaped main body 25, a tip 26 provided at the end of the main body 25, and a base 27 provided at the opposite end of the tip 26.
- a hole-shaped holding portion 28 is provided at the tip portion 26 so as to penetrate in the X-axis direction of FIG. 3 (a), and further, on the end portion side, a minor diameter of the holding portion 28 (adjacent to the holding portion 28). A diameter similar to or smaller than the diameter in the Z direction in FIGS.
- a notch 29 is provided.
- the notch in the notch 29 is cut into the inside of the exhaust tool 24, that is, in the positive or negative direction of the X axis in FIG. 3A to form a valley, and at the bottom of the valley. The thin part is left.
- FIG. 4 shows a schematic plan view of the tip portion 26 of the exhaust tool 24 in which the tip portion 26 of FIG. 3 is enlarged.
- the tip portion 26 is provided with a through-hole-shaped holding portion 28 and a non-penetrating notch portion 29 adjacent to the holding portion 28.
- the cut portion 29 is cut in the longitudinal direction of the main body portion 25 toward the end portion of the tip portion 26.
- the penetrating holding portion 28 is passed through the first fastening portion 18 to limit the movement of the exhaust tool 24, and after the exhaust process, the exhaust tool 24 is pulled out in a direction away from the first fastening portion 18 and is pulled out by the first fastening portion 18.
- the notch 29 can be torn.
- the holding portion 28 is expanded toward the outside of the exhaust tool 24, the expanded holding portion 28 is hooked on the first fastening portion 18 of the bushing 11 arranged in the connector 15, and the main body portion 25 of the exhaust tool 24 is connected to the connector. It is brought into close contact with the inner wall 30 of 15.
- the holding portion 28 holds the first fastening portion 18 and the movement of the exhaust tool 24 is restricted when the bus connection portion 10 is assembled, the exhaust can be efficiently exhausted without blocking the ventilation path. As a result, the residual gas between the connector 15 and the insulating plug 22 can be suppressed, and the connection between the first electric device 12 and the second electric device 13 can be achieved.
- the width of the tip of the tip 26 becomes narrower toward the tip as shown in FIG.
- the exhaust tool 24 can be easily inserted and removed, and the tensile force when removing the exhaust tool 24 is unlikely to be concentrated on the poles of the exhaust tool 24. Therefore, the exhaust tool is located inside the connector 15 and on the joint surface between the connector 15 and the insulating plug 22. It is possible to prevent a part of 24 from remaining.
- FIG. 5 shows a schematic side view of the tip portion 26 of the exhaust tool 24 in which the tip portion 26 of FIG. 3 is enlarged.
- the thickness of the tip portion 26 becomes thinner toward the tip.
- the broken line in FIG. 5 shows the cut portion 29 seen through from the side surface of the exhaust tool 24, and the cut portion 29 is provided adjacent to the holding portion 28 with the thin portion shown by the broken line left.
- FIG. 6 shows an example of the cross section of the MM line of FIG. 3A, that is, the cross-sectional shape of the main body 25.
- the cross-sectional shape of the main body 25 may be, for example, a shape in which the corners of the rectangle shown in FIG. 6A are rounded, or an oval shape shown in FIG. 6B.
- the oval includes a concentric circle and an ellipse.
- the cross-sectional shape may be a polygon with rounded corners.
- FIG. 7 is an enlarged view of a part of the main body portion 25, and as shown in FIG. 7, the main body portion 25 may be provided with a concave portion 32 and a convex portion 33.
- the concave portion 32 and the convex portion 33 may be provided so as to cross in the lateral direction from the main body portion 25 to the tip portion 26 of the exhaust tool 24. It may be possible to cross a part of the lateral direction instead of the entire direction.
- the concave portion 32 and the convex portion 33 may be provided on only one surface, or may be provided on a plurality of surfaces. Further, the concave portions 32 and the convex portions 33 may be interspersed without crossing.
- an insulating lubricant such as paste or oil applied to the inner wall 30 of the connector 15 and the outer wall 31 of the insulating plug 22 when the connector 15 and the insulating plug 22 are connected.
- the exhaust process can be performed without obstructing the flow of the.
- the exhaust tool 24 can be manufactured by using a material having flexibility and lubricity such as fluororesin.
- the exhaust tool 24 may be made of polypropylene resin, polyamide resin, polyetheretherketone resin, or polyacetal resin.
- Polyamide fibers may be impregnated with polypropylene resin and molded. Strength can be ensured by using a composite material in which reinforcing fibers such as polyamide fibers are impregnated with resin, and damage and breakage when the exhaust tool 24 is detached can be prevented, and the inner wall 30 of the connector 15 and the outer wall of the insulating plug 22 can be prevented. It can be prevented from remaining on the joint surface of 31.
- a deformable and recoverable material such as silicone resin or ethylene propylene rubber may be used so that the exhaust tool 24 can be sandwiched between the inner wall 30 of the connector 15 and the outer wall 31 of the insulating plug 22. Good.
- the exhaust tool 24 provided with the through-hole-shaped holding portion 28 and the non-penetrating notch portion 29 when assembling the bus connection portion 10, the movement of the exhaust tool 24 is restricted to create a ventilation path.
- the gas can be efficiently discharged while ensuring the gas, and the cut portion 29 can be cut and the exhaust tool 24 can be pulled out after sufficient exhausting, so that the gas of the bus connection portion 10 can be reliably discharged.
- the connector 15 is provided with openings 21 on three sides, and one of the openings 21 is closed by the bushing 11. However, one of the openings 21 is closed without using the bushing 11. , A connector having a first fastening portion 18 having openings 21 on both sides may be used.
- FIG. 8 shows an exhaust tool according to the second embodiment.
- the same components as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.
- FIG. 8 (a) is a plan view of the exhaust tool 34
- FIG. 8 (b) is a side view of the exhaust tool 34.
- the exhaust tool 34 according to the second embodiment includes a rod-shaped main body portion 25 and a tip portion 26 provided at an end portion of the main body portion 25.
- the tip portion 26 is provided with a hole-shaped holding portion 28 passing through the first fastening portion 18 shown in FIG. 9, which is an enlarged view of the tip portion 26 of FIG. 8, penetrating in the X-axis direction of FIG.
- the periphery of the holding portion 28 is surrounded by the supporting portion 35.
- FIG. 9 shows a schematic plan view of the tip portion 26 of the exhaust tool 34, which is an enlarged view of the tip portion 26 of FIG.
- a notch 29 is provided between the main body 25 and the support 35.
- the cut portion 29 is adjacent to the holding portion 28 and is cut in the outer edge of the support portion 35 in the lateral direction of the main body portion 25, and is not penetrated by pulling the main body portion 25 and the support portion 35 in opposite directions.
- the cut portion 29 is torn, and the main body portion 25 and the support portion 35 can be separated from each other with the cut portion 29 as a boundary.
- FIG. 10 shows a schematic side view of the tip portion 26 of the exhaust tool 34, which is an enlarged view of the tip portion 26 of FIG.
- the tip portion 26 is formed so as to become thinner toward the tip, and the end portion of the tip portion 26 is formed to be the thinnest.
- the inner wall 30 of the connector 15 and the outer wall 31 of the insulating plug 22 are the joint surfaces of the first electric device 12 and the second electric device 13.
- the holding portion 28 of the exhaust tool 34 is hooked on the first fastening portion 18 in the first electric device 12, and the main body portion 25 of the exhaust tool 34 is attached to the inner wall 30 of the first electric device 12.
- the holding portion 28 assembles the first electric device 12 and the second electric device 13 while preventing the exhaust tool 34 from being displaced, and immediately before or after the completion of the assembly.
- the notch 29 provided between the main body 25 and the support 35 of the exhaust tool 34 is torn, and the main body 25 and the support are supported.
- the portion 35 can be separated and the main body portion 25 can be detached to the outside of the connector 15.
- the support portion 35 remains between the first electric device 12 and the second electric device 13, but the support portion 35 has no electrical problem because its surroundings remain in the space having the same potential.
- the through-hole-shaped holding portion 28 and the supporting portion 35 supporting the holding portion 28 have various shapes such as a circle shown in FIG. 11, a quadrangle with rounded corners, a triangle with rounded corners, and a rhombus with rounded corners. be able to.
- the shape of the support portion 35 By deforming the shape of the support portion 35 in this way, the shape becomes suitable for inserting and removing the exhaust tool 34.
- the support portion 35 has a polygonal shape
- the frictional force applied to the corner portion of the support portion 35 is reduced as compared with the case where the support portion 35 has no corner portion, and the shape is more suitable for inserting and removing the exhaust tool 34.
- the support portion 35 has a rounded corner shape or an elliptical shape including a circular portion, damage to the connector 15 and the insulating plug 22 at the time of inserting and removing the exhaust tool 34 can be suppressed.
- the movement of the exhaust tool 34 is restricted by using the exhaust tool 34 provided with the through-hole-shaped holding portion 28, the non-penetrating notch portion 29, and the support portion 35 when assembling the bus connection portion 10. Because the gas can be efficiently discharged while securing the ventilation path, the notch 29 can be cut to separate the main body 25 and the support 35 after sufficient exhaust, and the main body 25 can be easily pulled out. The gas of the bus connection portion 10 can be reliably discharged.
- the cross-sectional shape of the main body 25 is a rectangle or an oval with rounded corners in the first embodiment, the cross-sectional shape shown in FIG. 12 may be used.
- Each cross-sectional shape in FIG. 12 corresponds to the cross-sectional shape in the line MM of FIG. 3 or FIG.
- the cross-sectional shape of the main body 25 is shown in each square indicated by the vertical axis and the horizontal axis.
- Each feature in the row direction is that one row has a quadrangular outer shape with rounded corners, the second row has a horizontally long circular shape, the third row has an elliptical outer shape, and the fourth row has a rhombic shape.
- row A has no groove on the surface
- row B has a groove on the upper and lower surfaces leading from the base 27 to the tip 26
- row C has a groove on one surface from the base 27.
- the one having a groove leading to the tip portion 26 is shown.
- row D indicates that the main body portion 25 has grooves leading from the base portion 27 to the tip portion 26 on both side surfaces.
- the cross section of the main body 25 can be selected from various shapes as shown in FIG. 12, and by deforming the cross-sectional shape of the main body 25, a shape suitable for inserting and removing the exhaust tool 24 and the exhaust tool 34. Can be.
- the cross section of the main body 25 has a polygonal shape, the contact area between the inner wall 30, the outer wall 31, and the surface of the main body 25 is larger than that of the curved surface of the main body 25. It is possible to prevent the main body 25 from shifting following the rotation of the 22. Further, if the cross section of the main body 25 has a rounded corner or an oval shape, damage to the connector 15 and the insulating plug 22 when the exhaust tool 24 and the exhaust tool 34 are inserted and removed can be suppressed.
- the main body 25 is provided with a groove leading from the tip 26 to the base 27, so that the exhaust tool 24 and the exhaust tool 34 intervene to connect the connector 15.
- the gap formed on the joint surface with the insulating plug 22 is expanded. As a result, the gas remaining between the connector 15 and the insulating plug 22 can be sufficiently discharged.
- the bus connection portion 10 of the opening / closing device 1 in FIG. 1 includes at least a part of the first electric device 12 and the second electric device 13, and the first electric device 12 includes the bushing 11, It is composed of a bus 14 and a connector 15, and the second electric device 13 is composed of an insulating plug 22 and a grounding device (not shown) connected to the insulating plug 22.
- the first electric device 12 is formed by inserting the bus 14 and the bushing 11 into the opening 21 of the connector 15.
- the bushing 11 is inserted into the opening 21 of the connector 15 to close one opening 21, and after the bushing 11 is inserted, the bus 14 is inserted from the other opening 21 of the connector 15 to close the opening 21.
- the bushing 11 includes a first fastening portion 18, a split terminal 19, and a conductive member 20, the bus 14 is composed of a bus conductor 16 and an insulating shield 17 surrounding the bus bar 14, and a bus conductor 14 is attached to an end portion of the bus 14. 16 is exposed.
- the split terminal 19 of the bushing 11 holds the end of the inserted bus 14 from above and below, and the side of the end of the bus 14 is supported by the conductive member 20. Since the split terminal 19 and the conductive member 20 are in contact with each other and the bus 14 and the bushing 11 are electrically connected to each other, the first electric device is connected to another electric device provided in the switchgear 1 connected to the bushing 11. 12 is electrically connected. Since the opening 21 into which the bushing 11 and the bus 14 are inserted is closed, the gas passage is blocked.
- the bushing 11 is provided inside the connector 15 toward the opening 21 of the connector 15 which is not blocked by the bus 14 and the bushing 11.
- the first fastening portion 18 is projected.
- the first fastening portion 18 is, for example, a stud bolt having male threads cut on both sides, and the first fastening portion 18 and the fastening portion of another electric device are fitted to each other to fit the first fastening portion 18 and the other electric device. And are connected.
- the fastening portion of the other electric device is the second fastening portion 23, and the other electric device is the second electric device 13.
- the second fastening portion 23 and the first fastening portion 18 arranged inside the insulating plug 22 are fitted, and the first electric device 12 and the second electric device 13 are connected to each other.
- An insulating lubricant is applied in advance to the joint surface between the inner wall 30 of the connector 15 and the outer wall 31 of the insulating plug 22, which is the joint surface between the first electric device 12 and the second electric device 13.
- grease is used as a lubricant.
- the exhaust tool 24 is arranged in the opening 21 along the inner wall 30 of the connector 15, and the holding portion 28 of the exhaust tool 24 is passed through the first fastening portion 18 to pass the exhaust tool 24. Install in the opening 21.
- the holding portion 28 is pulled toward the outside of the exhaust tool 24, and a through hole is widened so that the first fastening portion 18 can be inserted into the holding portion 28.
- the inner wall 30 of the connector 15 included in the first electric device 12 and the outer wall 31 of the insulating plug 22 included in the second electric device 13 are fitted into the joint surface.
- the exhaust tool 24 is sandwiched.
- the inner wall 30 and the outer wall 31 are sized so as to be fitted and in close contact with each other.
- a second fastening portion 23 having a female screw inside is provided at one end in the direction of the drive shaft 37.
- a rotating member 39 for rotating the insulating plug 22 is provided at the other end in the drive shaft 37 direction.
- the rotating member 39 has, for example, a hexagonal portion 40 for rotation at an end portion.
- a split terminal 19 connected to the bus 14 of the switchgear 1 is arranged inside the first electric device 12.
- a first fastening portion 18 having a male thread on the outer periphery thereof is provided so as to project toward the second electric device 13.
- the inner wall 30 of the connector 15 and the outer wall 31 of the insulating plug 22 come into close contact with each other by the process of inserting the insulating plug 22. Since the inner wall 30 of the connector 15 and the outer wall 31 of the insulating plug 22 are in close contact with each other, the gas in the close contact portion is surrounded by the connector 15 and the insulating plug 22, and the escape area is lost.
- the insulating plug 22 is further rotated by the torque wrench 36 and screwed into the connector 15, so that the gas remaining between the connector 15 and the insulating plug 22 is compressed.
- the compressed gas moves in the circumferential direction of the outer wall 31 of the insulating plug 22, and the exhaust tool 24 moves the inner wall 30 of the connector 15 and the insulating plug 22. It is collected in the gap formed between the outer wall 31 and the outer wall 31. The gas collected in the gap is discharged to the outside through this gap.
- the exhaust tool 24 is pulled out in the direction of disconnecting from the connector 15, that is, in the direction B of FIG. 13, immediately before or after the connection between the first electric device 12 and the second electric device 13 is completed. Due to this pulling force, the notch 29 provided in the exhaust tool 24 is torn, and the main body 25 can be detached. Then, after the cut portion 29 is cut, the main body portion 25 is separated from the connector 15, and the first electric device 12 and the second electric device 12 and the second electric device 12 are maintained in close contact with the inner wall 30 of the connector 15 and the outer wall 31 of the insulating plug 22. The connection of the electric device 13 is completed.
- the exhaust tool 24 is arranged along the inner wall 30 of the connector 15, and after passing the through-hole-shaped holding portion 28 through the first fastening portion 18 inside the connector 15, the first fastening portion 18 and the second fastening portion 23
- the main body 25 is interposed between the inner wall 30 of the connector 15 and the outer wall 31 of the insulating plug 22 while rotating the insulating plug 22 so that the main body 25 is between the insulating plug 22 and the connector 15.
- the gas between the connector 15 and the insulating plug 22 is discharged from the gap generated by the interposition, the first fastening portion 18 and the second fastening portion 23 are fastened, and then the exhaust tool 24 is pulled out from the connector 15.
- by cutting the cut portion 29 and separating the main body portion 25 from the connector 15 it is possible to efficiently exhaust the bus while assembling the bus connection portion 10 included in the opening / closing device 1.
- the example of connecting the first electric device 12 and the second electric device 13 has been described in the first to third embodiments, other electric devices in the switchgear 1 may be used. It may be an external electric device connected to the switchgear 1.
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- Power Engineering (AREA)
- Gas-Insulated Switchgears (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
Description
以下、図面に基づいて実施の形態1について説明する。
図8に、実施の形態2に係る排気工具を示す。実施の形態1と同じ構成要素には同じ符号を付し、その説明を省略する。
図13を用いて、開閉装置1の製造における実施の形態1の排気工具24を用いた排気工程について説明する。図1における開閉装置1の母線接続部10は、図2に示すように第1の電気機器12と第2の電気機器13の少なくとも一部を含み、第1の電気機器12は、ブッシング11、母線14、及びコネクタ15により構成され、また、第2の電気機器13は絶縁栓22と、絶縁栓22と接続された接地機器(図示しない)により構成される。
Claims (10)
- 棒状の本体部と、
前記本体部の端部に設けられた先端部と、
前記先端部に設けられ、母線と絶縁性のコネクタを有する第1の電気機器の前記コネクタの内部に配置された第1締結部に通されることにより前記本体部の動きを制限する貫通穴状の保持部と、
前記保持部に隣接して切り込まれた未貫通の切込部と
を備えたことを特徴とする排気工具。 - 前記切込部は、前記本体部の長手方向へ切り込まれたことを特徴とする請求項1に記載の排気工具。
- 前記保持部は支持部に囲まれて設けられ、
前記切込部は、前記支持部と前記本体部との間に、前記本体部の短手方向に切り込まれたことを特徴とする請求項1に記載の排気工具。 - 前記保持部は、断面を多角形または円形とする貫通穴であることを特徴とする請求項3に記載の排気工具。
- 前記本体部の断面形状は、角が丸められた多角形または長円形であることを特徴とする請求項1から請求項4のいずれか1項に記載の排気工具。
- 前記本体部は、少なくとも一面に、凹部と凸部が設けられていることを特徴とする請求項1から請求項5のいずれか1項に記載の排気工具。
- 前記本体部は、長手方向に溝が設けられていることを特徴とする請求項1から請求項6のいずれか1項に記載の排気工具。
- 前記本体部は、可とう性を有する樹脂で形成されることを特徴とする請求項1から請求項7のいずれか1項に記載の排気工具。
- 前記先端部は、先端に向けて、厚み及び幅の少なくともいずれかが小さくなることを特徴とする請求項1から請求項8のいずれか1項に記載の排気工具。
- 母線を有する第1の電気機器に設けられた絶縁性のコネクタの内壁に沿って、請求項1から請求項9のいずれか1項に記載の排気工具に備えられた保持部を、前記母線と接続される前記コネクタ内部の第1締結部に通す工程と、
前記第1締結部と、第2の電気機器の絶縁栓内に設けられた第2締結部を嵌め合わせ、前記絶縁栓を回動させながら、前記排気工具に備えられた本体部を前記コネクタの前記内壁と前記絶縁栓の外壁との間に介在させて、前記コネクタと前記絶縁栓との間に前記本体部が介在して生じた間隙から、前記コネクタと前記絶縁栓との間の気体を排出させて、前記第1締結部と前記第2締結部を締結する工程と、
前記排気工具を前記コネクタから引き出しながら、前記排気工具に備えられた切込部を切断して前記本体部を前記コネクタから離脱させる工程と
を備えることを特徴とする開閉装置の製造方法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201980097736.6A CN114026754B (zh) | 2019-06-27 | 2019-06-27 | 排气工具以及使用排气工具的开关装置的制造方法 |
EP19934674.3A EP3993192A4 (en) | 2019-06-27 | 2019-06-27 | EVACUATION TOOL AND METHOD OF MAKING A SWITCHING DEVICE USING THE SAME |
PCT/JP2019/025583 WO2020261482A1 (ja) | 2019-06-27 | 2019-06-27 | 排気工具及びこれを用いた開閉装置の製造方法 |
JP2021528780A JP7142782B2 (ja) | 2019-06-27 | 2019-06-27 | 排気工具及びこれを用いた開閉装置の製造方法 |
TW108144240A TWI719739B (zh) | 2019-06-27 | 2019-12-04 | 排氣工具及使用該排氣工具之開閉裝置的製造方法 |
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WO2017022618A1 (ja) | 2015-07-31 | 2017-02-09 | 三菱電機株式会社 | 脱気工具およびその脱気工具を用いたスイッチギヤ用電気機器の製造方法 |
WO2018235162A1 (ja) * | 2017-06-20 | 2018-12-27 | 三菱電機株式会社 | 電気機器接続装置及び開閉装置 |
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JP3350419B2 (ja) * | 1997-09-30 | 2002-11-25 | 昭和電線電纜株式会社 | T形ブッシング |
JPH11164413A (ja) * | 1997-12-01 | 1999-06-18 | Toshiba Corp | 絶縁母線装置 |
JP3624779B2 (ja) * | 2000-02-24 | 2005-03-02 | 株式会社日立製作所 | ガス絶縁開閉装置およびその組立方法 |
JP2002345131A (ja) * | 2001-05-15 | 2002-11-29 | Mitsubishi Electric Corp | ガス絶縁開閉装置用母線接続装置 |
JP4879936B2 (ja) * | 2008-06-18 | 2012-02-22 | 三菱電機株式会社 | ガス充填検査装置及びガス漏れ検査方法 |
JP5496522B2 (ja) * | 2009-03-02 | 2014-05-21 | 三洋電機株式会社 | バッテリシステム |
EP2501002B1 (de) * | 2011-03-15 | 2014-11-26 | ABB Technology AG | Querdemontagemodul für eine Schaltanlage |
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WO2018235162A1 (ja) * | 2017-06-20 | 2018-12-27 | 三菱電機株式会社 | 電気機器接続装置及び開閉装置 |
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CN114026754B (zh) | 2024-07-19 |
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JP7142782B2 (ja) | 2022-09-27 |
TWI719739B (zh) | 2021-02-21 |
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