JP2018160947A - Circuit breaker and mobile substation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a transport cost of a circuit breaker.SOLUTION: In a vacuum circuit breaker 1 in which a three-phase pole column part 2 is provided parallel to a link case 3, the pole column part 2 is disposed on the outside and rotatably supported. The pole column part 2 disposed on the outside comprises a pole column case 5 at the bottom edge of a pole column insulator 4. Operation of a link 9 penetrating a side of the pole column case 5 and housed in the link case 3 is transmitted to a block part of the pole column part 2 via a revolving shaft 6. A cylinder 11 arranged coaxially with the revolving shaft 6 is provided at the side of the pole column case 5. The link case 3 includes an insertion part into which the cylinder 11 is inserted, and bearings 3b and 3c which rotatably support the cylinder 11 inserted into the insertion part. When transporting the vacuum circuit breaker 1, the pole column part 2 disposed on the outside is fixed so as to be perpendicular to the ground surface. When using the vacuum circuit breaker 1, the pole column part 2 disposed on the outside is inclined in a manner that the distance between the phases is a distance necessary for an aerial insulation distance.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a circuit breaker and a mobile substation. In particular, the present invention relates to a moving insulator circuit breaker.

  For example, as shown in FIG. 16, the moving substation 31 includes a disconnector 33, a vacuum circuit breaker 34, and a transformer 35 that are mounted on a loading platform 32 of one trailer, and is mounted on a loading platform 36 of another trailer. The cubicle 37 is provided. A control panel and a feeder panel are accommodated in the cubicle 37. A vacuum circuit breaker 34 is connected to the input (power receiving) overhead line 38 via a disconnector 33, and a transformer 35 is connected to the vacuum circuit breaker 34. For example, the vacuum circuit breaker 34 can automatically shut off the circuit and disconnect the fault system when an abnormality occurs in the device or the power system.

  As shown in FIG. 17, the vacuum circuit breaker 34 (insulator type vacuum circuit breaker) according to the prior art is fixed to the link case 40 so that the pole column 39 of each phase extends perpendicular to the ground. The pole portions 39 are spaced apart from each other by a predetermined distance for the purpose of electrical insulation from other phases.

  The pole column portion 39 includes a pole column insulator 41 extending upward from the link case 40 and a pair of blocking portion rod tubes 42 and 43 provided at the upper end portion of the pole column insulator 41. A blocking section is provided in the blocking section tubules 42 and 43. The breaker side pipes 42 and 43 extend substantially perpendicular to the interphase direction, the disconnector 33 is connected to the end of one of the breaker side pipes 42, and the transformer 35 is connected to the end of the other breaker side pipe 43. Connected. A drive shaft (not shown) that opens and closes the blocking sections in the blocking section rod tubes 42 and 43 is provided in the pole column insulator 41. The link case 40 houses a link mechanism that performs the operation of shutting off and closing the vacuum circuit breaker 34, and opens and closes the shut-off part in the shut-off part pipes 42 and 43 by an operating unit, a link mechanism, a drive shaft, etc. (not shown). The vacuum circuit breaker 34 is shut off and turned on.

  The vacuum circuit breaker 34 has a long dimension in the interphase direction of the pole column 39, and there is a concern that the transportation cost increases. Therefore, measures for reducing the transportation cost are taken (for example, Patent Documents 1-4).

U.S. Pat. No. 8,440,913 US Patent Application Publication No. 2013/0270086 JP 2009-268283 A Japanese Utility Model Publication No. 60-073311

  The conventional insulator-type vacuum circuit breaker (VCB) for moving substations is a pole pole fixed type. Therefore, in order to avoid restrictions during transportation, the interphase direction should be the trailer longitudinal direction during transportation of the vacuum circuit breaker. The vacuum circuit breaker was loaded onto the trailer platform. When using the vacuum circuit breaker, the interphase direction must be the short direction of the trailer, so it was necessary to secure a sufficient space for rotating the vacuum circuit breaker with respect to the longitudinal direction of the loading platform.

  This invention is made | formed in view of the said situation, and aims at reduction of the transportation cost of a circuit breaker.

  One aspect of the circuit breaker of the present invention that achieves the above object is a circuit breaker comprising a three-phase pole insulator and a link case that supports the pole insulator, wherein the pole pillar insulator is the link. A pole column case provided at the lower end of a pole insulator provided at each end of the link case, and arranged on both sides of the center and both ends of the case, and the side of the pole case A rotating shaft that passes through the portion and transmits the operation of the link stored in the link case to the breaking portion of the circuit breaker, and a side portion of the pole pole case that is provided coaxially with the rotating shaft. A cylinder, and the cylinder is provided to penetrate the side portion of the link case, and is supported by the side portion of the link case in a state of being rotatable in a circumferential direction of the cylinder. It is said.

  Further, according to another aspect of the circuit breaker of the present invention that achieves the above object, in the above circuit breaker, the end of the rotating shaft on the cylinder case side includes a lever to which the link is connected, and the lever includes: A jig mounting hole for mounting a jig for braking the lever when changing the inclination of the pole pole insulator is provided.

  Another aspect of the circuit breaker of the present invention that achieves the above object is the above circuit breaker, further comprising a cylinder seat to which a jig for rotating the cylinder is attached on the inner peripheral side of the side portion of the cylinder. It is characterized by that.

  Another aspect of the circuit breaker of the present invention that achieves the above object is characterized in that, in the circuit breaker, a side portion of the cylinder includes a notch portion through which the jig is inserted.

  Another embodiment of the circuit breaker of the present invention that achieves the above object includes a three-phase pole insulator, a pipe that supports each pole pole insulator, and a gantry that supports the pipe. Are connected to each other to form a link case, and the pipe arranged in the center is provided extending in the direction of each pipe arranged outside, and each pipe arranged outside is The opening end facing the opening of the pipe disposed in the center is provided with a connection pipe coaxially with the pipe disposed on the outside, and the lower end of the gantry supporting the pipe disposed on the outside includes A wheel that allows a pipe disposed outside to move in a phase direction; and a jack that changes a height of the gantry; and the connection pipe has one end at an open end of the pipe disposed outside. The other end is fixed to Serial extending the pipe direction is disposed in a central portion, said slidably supported by the pipe arranged at the center portion, and characterized in that.

  In addition, a moving substation of the present invention that achieves the above object is characterized in that any of the above circuit breakers is provided on a movable carriage.

  According to the above invention, the transportation cost of a circuit breaker is reduced.

It is a front view which shows the transport state of the vacuum circuit breaker which concerns on 1st Embodiment of this invention. It is a front view which shows the use condition of the vacuum circuit breaker which concerns on 1st Embodiment of this invention. It is a figure which shows the use condition of the vacuum circuit breaker which concerns on 1st Embodiment of this invention, (a) Front view, (b) Vertical sectional view of a cylinder part, (c) Front perspective view, (d) Rear perspective view It is. It is a longitudinal cross-sectional view of the cylinder part which shows the use condition of the vacuum circuit breaker which concerns on 1st Embodiment of this invention. It is a figure which shows the state in the middle of changing from a use state to a transport state, (a) Front view, (b) Vertical sectional view of a cylinder part, (c) Front perspective view, (d) Rear perspective view. It is a figure which shows the state when releasing the connection of a link and a lever, (a) The front view which shows the state which attached the jig to the lever, (b) The side view of Fig.6 (a), (c) It is a front view which shows the state by which the connection of the lever was cancelled | released, (d) It is a side view of FIG.6 (c). It is a figure which shows the state when changing the inclination of a pole pole insulator, (a) Front view, (b) Side view, (c) Front perspective view. It is a figure which shows a state when the inclination of a pole pillar insulator is made perpendicular | vertical, (a) Front view, (b) Side view, (c) Front perspective view. It is a figure which shows the state after making the inclination of a pole pillar vertical, (a) Front view, (b) Longitudinal sectional view of a cylinder part, (c) Front perspective view, (d) Rear perspective view. It is a figure which shows the transport state of the vacuum circuit breaker concerning 1st Embodiment of this invention, (a) Front view, (b) Vertical sectional view of a cylinder part, (c) Front perspective view, (d) Rear perspective view It is. It is a front view which shows the transport state of the vacuum circuit breaker which concerns on 2nd Embodiment of this invention. It is a front view which shows the use condition of the vacuum circuit breaker which concerns on 2nd Embodiment of this invention. It is an enlarged view of the lower end part of a mount. It is explanatory drawing explaining the procedure which expands between phases. It is explanatory drawing explaining the procedure which shrink | contracts between phases. (A) Top view of moving substation, (b) Side view of moving substation. (A) It is a front view of a vacuum circuit breaker, (b) It is a side view of a vacuum circuit breaker.

  A circuit breaker and a moving substation according to an embodiment of the present invention will be described in detail based on the drawings.

[First Embodiment]
As shown in FIGS. 1 and 2, the vacuum circuit breaker 1 according to the first embodiment of the present invention rotatably supports the pole columns 2 of both end phases of the vacuum circuit breaker 1 on a link case 3, The interpole dimension of the pole poles is variable by varying the inclination of the pole pole insulator 4 (the pole pole section 2 at the center is fixed). That is, the vacuum circuit breaker 1 is secured to the link case 3 (transported state) with three pole columns 2 substantially parallel (substantially perpendicular to the ground) as shown in FIG. The width in the interphase direction is shortened, and the transportation cost of the vacuum circuit breaker 1 is reduced. And the spatial distance required for the insulation between the different pole column parts 2 is ensured by inclining the pole pole insulator 4 of a both-ends phase (use condition) as shown in FIG. In the description of the embodiment, the pole column 2 on one end side of the vacuum circuit breaker 1 will be described in detail, but the inclination of the pole column 2 on the other end side can also be varied by the same configuration (and the same method). Can be made. Moreover, since the structure of the pole column part 2 is the same as that of the former (for example, the pole column part 39 of the vacuum circuit breaker 34 shown in FIG. 17), detailed description is abbreviate | omitted.

  As shown in FIG. 3, the vacuum circuit breaker 1 includes a pole pole insulator 4 and a link case 3 that supports the pole pole insulator 4. Below the link case 3 is provided a storage case 3a for storing an operation unit (not shown) for performing the shut-off / closing operation of the vacuum circuit breaker 1 (see FIGS. 1 and 2).

  As shown in FIG. 3B, a pole column case 5 is provided at the lower end of the pole column insulator 4. A rotating shaft 6 is provided through the side surface of the pole case 5 on the link case 3 side. The rotary shaft 6 transmits the power of the operation unit that shuts off and closes the vacuum circuit breaker 1 to a drive shaft 7 that opens and closes a shut-off unit (not shown) provided in the pole column unit 2. Is provided with a link 9 via a lever 8, and a drive shaft 7 is connected to the other end. The link 9 and the lever 8 are connected by a connecting pin 10, and the link 9 and the lever 8 can be attached and detached by inserting and removing the connecting pin 10. The lever 8 is formed with a jig mounting hole 8a to which a connecting portion 15b of the jig 15 described in detail later is connected (see, for example, FIG. 6A). A cylinder 11 (pipe) is attached to the side surface of the pole case 5 facing the link case 3 coaxially with the rotary shaft 6.

  As shown in FIG. 4, the cylinder 11 is rotatably supported by the link case 3. The cylinder 11 corresponds to the rotating shaft of the pole column insulator 4, and is rotatably supported by a pair of bearings 3b and 3c. The bearings 3 b and 3 c are provided in the cylinder 11 insertion portion of the link case 3 in a state in which the bearings 3 b and 3 c are slidable on the outer peripheral portion near the end of the cylinder 11.

  A flange 11 a is provided at the end of the cylinder 11, and the cylinder 11 is fixed to the link case 3 by fastening the flange 11 a to the link case 3 with fixing bolts 12. The flange 11 a is provided with a lid 13 that covers the opening of the cylinder 11. Further, a flange 5a is provided at a connecting portion of the cylinder 11 of the pole column case 5, and the flange 5a is fastened to the link case 3 with a fixing bolt 14 to connect the pole column insulator 4 (that is, the pole column portion 2). The link case 3 is fixed.

  A cylinder seat 11 b that protrudes to the inner peripheral side of the cylinder 11 is provided on the inner peripheral portion of the side surface of the cylinder 11 (that is, the wall surface perpendicular to the axis of the cylinder 11). The cylinder seat 11b is formed with a jig attachment hole 11c for connecting a jig 15 used when changing the inclination of the pole pole insulator 4. Further, as shown in FIG. 3 (d), a cutout portion 11d is formed on the side surface of the cylinder 11 in a range not in contact with the bearings 3b and 3c, and the cylinder seat is externally passed through the cutout portion 11d. The jig 15 can be mounted and operated on the 11b (or the lever 8).

  For example, as shown in FIG. 6, the jig 15 includes a fixing plate 15 a that is fixed to the end of the link case 3, a connecting portion 15 b that is attached to the lever 8 (or the cylinder seat 11 b), and a connecting portion 15 b. And an operation handle 15c for moving in the axial direction. The operation handle 15c rotates around the axis of the connecting portion 15b, and the connecting portion 15b moves in the axial direction in accordance with the rotation of the operating handle 15c. That is, the jig 15 has a structure that pushes and pulls the shaft (that is, the connecting portion 15b) processed into the screw structure by turning the operation handle 15c provided at the end of the connecting portion. By sharing the jig 15 connected to the lever 8 and the jig 15 connected to the cylinder seat 11b, the number of parts for performing the operation of changing the inclination of the pole column insulator 4 is reduced.

  An opening 3d is formed at the end of the link case 3 (end in the interphase direction), and a flange 3e is provided in the opening 3d. Bolt holes are formed in the flange 3e, and the fixing plate 15a of the jig 15 is attached to the flange 3e with bolts, and the inclination of the pole post insulator 4 is changed.

  Here, the operation procedure from the use state of the vacuum circuit breaker 1 (the state in which the pole part 2 is inclined with respect to the ground) to the transport state (the state in which the pole part 2 is perpendicular to the ground) is described in detail. explain.

  First, as shown in FIGS. 5C and 5D, the lid 13 is removed. FIG. 5 shows a state in which the fixing bolts 12 and 14 are removed (that is, a state in which the pole pole insulator 4 is rotatable), but the fixing bolts 12 and 14 attach the jig 15 to the cylinder seat 11b. Attached to the flange 3e of the link case 3, and then removed. Similarly, also in FIG. 9 described in detail later, the fixing bolts 12 and 14 are fastened with the jig 15 attached to the cylinder seat 11 b and the flange 3 e of the link case 3.

  As shown in FIG. 6, after removing the lid 13, the end of the connecting portion 15 b is connected to a jig mounting hole 8 a formed in the lever 8. By attaching the jig 15 to the lever 8 and the flange 3e of the link case 3, the lever 8 is fixed so as not to move. Although not shown, the connecting portion 15b of the jig 15 is inserted from the outside of the link case 3 into the inner peripheral portion of the flange 11 through the notch portion 11d.

  In this state, the connecting pin 10 is removed, and the pole pole-operator connection is released (see FIG. 6D). Since a pressure contact force is applied to the lever 8 from the pole column side, after releasing the connection between the lever 8 and the link 9, the connecting portion 15b of the jig 15 is moved in the pulling direction to rotate the lever 8, and then The jig 15 is removed.

  Next, as shown in FIG. 7, the connecting portion 15b of the jig 15 is attached to the cylinder seat 11b, the fixing bolts 12 and 14 are removed, and the connecting portion 15b is moved in the pulling direction (see the arrow in FIG. 7A). ). The cylinder 11 rotates (counterclockwise in FIG. 7A) in accordance with the movement of the connecting portion 15b, and the pole column insulator 4 is in the transported position (see FIG. 8). After the pole pole insulator 4 is brought into a transport state, the fixing bolts 12 and 14 are fastened to fix the pole pole insulator 4 and the jig 15 is removed.

  Finally, as shown in FIGS. 9C and 9D, the lid 13 is attached to the flange 11a. In the transport state, the connection between the lever 8 and the link 9 is released.

  As shown in FIG. 10, the vacuum circuit breaker 1 is fixed so that the pole column 2 is perpendicular to the ground in the transport state.

  When shifting from the transport state to the use state, the pole column 2 provided at the end of the link case 3 is tilted by the reverse procedure of the operation procedure from the use state to the transport state. That is, the jig 15 is attached to the cylinder seat 11b and the flange 3e of the link case 3, the fixing bolts 12 and 14 are removed, and the pole post insulator 4 is tilted so as to be in use. When the pole pole-operator is connected, the connecting portion 15b of the jig 15 is attached to the lever 8, the connecting portion 15b is moved in the pushing direction, the lever 8 is moved to the position of the link 9, and the lever 8 is moved. The link mounting hole 8b and the lever mounting hole 9a of the link 9 are aligned, and the connecting pin 10 is inserted into the holes 8b and 9a so that the lever 8 and the link 9 are connected.

  As described above, according to the vacuum circuit breaker 1 according to the first embodiment of the present invention, the cylinder 11 (sliding part) attached to the pole columns 2 of the opposite phase of the vacuum circuit breaker 1 is provided inside the link case 3. A sliding structure is adopted, and the interpole dimension of the pole column portion 2 is made variable by changing the inclination of the pole column insulators 4 of both end phases. That is, a rotation support portion is constituted by the cylinder 11 corresponding to the rotating shaft and the link case 3 having the bearings 3b and 3c inside, and when the interphase dimension is fixed, the pole column portion 2 and the link case 3 are connected to fix the device. To do. When the interphase dimension is variable, this connection is disconnected to allow the contact portion between the bearings 3b and 3c and the cylinder 11 to slide.

  When using the vacuum circuit breaker 1, the jig 15 is connected to the cylinder seat 11 b through the notch 11 d formed on the side surface of the cylinder 11, and the pole 11 that is standing upright is tilted by rotating the cylinder 11. Make it go. Since the interpolar distance of the polar column part 2 is increased by inclining the polar column part 2, a necessary air insulation distance can be obtained. When transporting the vacuum circuit breaker 1, the jig 15 is connected to the cylinder seat 11 b, and the tilted pole column 2 is made upright by turning the cylinder 11. Since the interpole distance is shortened by the pole column portion 2 being upright, the width in the phase direction of the vacuum circuit breaker 1 is shortened.

  Thereby, at the time of transportation of the vacuum circuit breaker 1, the dimension in the interphase direction of the pole column part 2 of the vacuum circuit breaker 1 can be shortened, and the space in the longitudinal direction of the trailer carrier that transports the vacuum circuit breaker 1 is reduced. be able to. In particular, if the dimension in the interphase direction of the pole column 2 of the vacuum circuit breaker 1 can be made shorter than the width in the short direction of the trailer bed, the vacuum is set so that the interphase direction of the pole column 2 becomes the short direction of the trailer. A circuit breaker 1 can be arranged.

  As a result, the space for rotating the vacuum circuit breaker, which was conventionally necessary for the vacuum circuit breaker, can be omitted, and the spatial transportation cost is reduced. In addition, since it is not necessary to install a rotating base for rotating the vacuum circuit breaker by 90 ° on the site, which was necessary in the past, the transportation cost for installing and removing the vacuum circuit breaker is reduced. The

  Moreover, in the vacuum circuit breaker 1, since the dimension of the link 9 does not change with respect to the change in the interphase distance, it is necessary to remove the connecting pin 10 that connects the link 9 and the lever 8 during the operation of the cylinder 11. The attachment pin 10 can be removed safely by attaching the jig 15 to the lever 8 and removing the connection pin 10. Further, since the positions of the link 9 and the lever 8 are shifted at the time of reconnection, the lever 8 can be operated to be thrown to a position where the jig 15 can be attached to the lever 8 and the link 9 can be reconnected.

  In particular, by applying the vacuum circuit breaker 1 according to the first embodiment of the present invention to applications where there are many opportunities to switch between operation and use, such as for use in mobile substations, the change in the inclination of the pole insulator 4 can be changed. Can be easily performed without increasing the number of parts. For example, since the inclination of the pole pole insulator 4 can be changed without removing the link case 3, the use state and the transport state can be easily switched with a small number of parts.

[Second Embodiment]
A vacuum circuit breaker according to a second embodiment of the present invention will be described in detail with reference to the drawings. As shown in FIGS. 11 and 12, the vacuum circuit breaker 16 according to the second embodiment includes a central square pipe 17 that supports the central pole pillar insulator 4 of the vacuum circuit breaker 16 and an outer square pipe 18 that supports the double pole pole insulator 4. (Specifically, the connecting corner pipe 20) and the outer corner pipe 19 overlap each other, and the both-sided pole insulator 4 can be slid in the interphase direction.

  As shown in FIG. 12, the vacuum circuit breaker 16 includes a central square pipe 17 that supports the central pole pillar insulator 4, outer corner pipes 18 and 19 that support both side pole pillar insulators 4, and a connection square pipe 20. A link case is formed by the central square pipe 17 and the outer square pipes 18 and 19 (and the connection square pipe 20). Although not shown, the link between the pole pole insulators 4 is detachable and has a structure that can be attached after interphase expansion.

  The connecting square pipe 20 has an outer diameter smaller than that of the central square pipe 17 and the outer square pipes 18 and 19, and the outer square pipe 18 (or outer side) is coaxial with the outer square pipe 18 (or outer square pipe 19). It is provided at the open end of the square pipe 19). One end of the connection corner pipe 20 is fixed to one end of the outer corner pipe 18 (or the outer corner pipe 19). The other end of the connection square pipe 20 extends in the direction of the central square pipe 17, is inserted through the central square pipe 17, and is slidably supported.

  The central square pipe 17 is provided extending in the direction of the outer square pipes 18 and 19. At the end of the central square pipe 17, there are flanges 17 a for fixing to the outer square pipes 18, 19 (or the adapter 21 provided between the central square pipe 17 and the outer square pipes 18, 19 during interphase expansion), 17b is provided. Further, a jack attachment portion 17c to which the jack 22 is attached at the time of interphase expansion (or storage) is provided on the outer peripheral portion of the central square pipe 17. The pole column insulator 4 is fixed to the upper part of the central square pipe 17, and a pedestal 23 is provided to the lower part of the central square pipe 17.

  The outer corner pipe 18 is provided so that the opening thereof faces the opening of the central corner pipe 17. A flange 18 a for fixing to the central square pipe 17 (or the adapter 21) is provided at the end of the outer square pipe 18. Moreover, the outer peripheral part of the outer corner pipe 18 is provided with a jack attaching part 18b to which the jack 22 is attached at the time of interphase expansion (or during storage). The pole column insulator 4 is fixed to the upper part of the outer corner pipe 18, and the gantry 24 is provided to the lower part. Similarly, a flange 19a and a jack mounting portion 19b are provided at the open end of the outer corner pipe 19. And the pole pillar insulator 4 is fixed to the upper part of the outer side angle pipe 19, and the mount frame 25 is provided in the lower part.

  As shown in FIG. 13, a wheel 26 is provided at the lower end of the gantry 24, and the outer corner pipe 18 can slide in the interphase direction. A pedestal 28 is provided at the lower end of the gantry 24 via a jack 27. The jack 27 (for example, a screw jack) is a mechanism that makes the distance between the lower end surface of the gantry 24 and the base 28 variable. When fixed (service condition), the pedestal 28 is moved downward by the jack 27 to support the pedestal 24 by the pedestal 28, and when sliding, the pedestal 28 is moved upward by the jack 27, and the pedestal 24 is moved by the wheel 26. support. As a result, the outer corner pipe 18 can be easily slid in the interphase direction. Similarly, the gantry 25 includes wheels and jacks, and the outer corner pipe 19 can slide in the interphase direction.

  Here, a procedure for expanding or contracting the phase of the vacuum circuit breaker 16 will be described in detail. In this description, the central corner pipe 17 and the outer corner pipe 18 will be described in detail. However, the expansion or contraction of the center corner pipe 17 and the outer corner pipe 19 can be performed in a similar manner.

  As shown in FIG. 14, when the space between the vacuum circuit breakers 16 is expanded, a jack 22 (screw) is attached between the central square pipe 17 and the outer square pipe 18, and the central square pipe 17 and the outer square pipe 18 are connected. The bolts 29 and nuts 30 are fixed, and the outer corner pipe 18 is slid by the jack 22. In this example, the jacks 22 are provided above and below the central square pipe 17, but one jack 22 may be a guide pin for guiding the outer square pipe 18.

  An adapter 21 is provided between the central square pipe 17 and the outer square pipe 18, and the pipes 17, 18 and the adapter 21 are fastened with bolts and nuts. Rigidity is ensured by integrating the central square pipe 17 and the outer square pipe 18 with the adapter 21. In addition, after expansion, the jack 22 is removed (it is also possible to operate with the jack 22 attached).

  As shown in FIG. 15, when the space between the vacuum circuit breakers 16 is contracted, the bolts and nuts that fix the adapter 21 and the central square pipe 17 (and the bolts that secure the adapter 21 and the outer square pipe 18) Nut) and the adapter 21 is removed. Then, a jack 22 is attached between the central corner pipe 17 and the outer corner pipe 18, and the outer corner pipe 18 is slid by the jack 22. After the slide, the central corner pipe 17 and the outer corner pipe 18 are fastened by the bolt 29 and the nut 30. As with the expansion, after contraction, the jack 22 may be attached or removed.

  According to the vacuum circuit breaker 16 according to the second embodiment of the present invention as described above, the dimension in the interphase direction can be made variable. As a result, similarly to the vacuum circuit breaker 1 according to the first embodiment, the space in the longitudinal direction of the trailer carrier can be reduced, and the spatial transportation cost is reduced. Further, since the operation for rotating the vacuum circuit breaker 16 and the installation of a turntable for rotation are unnecessary, the transportation cost in the installation / removal work of the vacuum circuit breaker 16 is reduced.

  Further, by applying the vacuum circuit breaker 16 according to the second embodiment of the present invention to an application where there are many opportunities to switch between operation and use, such as a mobile substation application, the inclination of the pole pole insulator 4 can be changed. Can be easily performed without increasing the number of parts.

  The circuit breaker and the moving substation of the present invention have been described above by showing specific embodiments. However, the circuit breaker and the moving substation of the present invention are not limited to the embodiment, and the features thereof are as follows. Design changes can be made as appropriate without departing from the scope, and design changes also belong to the technical scope of the present invention.

  For example, the dimension of the pole column part 2 in the interphase direction is obtained by combining the configuration of the vacuum circuit breaker 1 according to the first embodiment of the present invention with the configuration of the vacuum circuit breaker 16 according to the second embodiment. Can be made shorter.

  In addition, the circuit breaker of the present invention can be suitably used as, for example, an insulator-type circuit breaker mounted on a 145 kV moving substation. However, the configuration of the circuit breaker is not limited to the embodiment, and can be arbitrarily selected. Can be applied to circuit breakers.

  In addition, the circuit breaker of the present invention can be suitably used for a moving substation application that frequently changes the inclination of the pole 2, but it can be used for transportation of a fixed circuit breaker to reduce the transportation cost (space Needless to say, the cost of operation and work is reduced.

1, 16 ... Vacuum circuit breaker (breaker)
2 ... Polar pole part 3 ... Link case, 3a ... Storage case 3b, 3c ... Bearing, 3d ... Opening, 3e ... Flange 4 ... Polar pole insulator 5 ... Polar pole case, 5a ... Flange 6 ... Rotating shaft, 7 ... Drive Axis 8 ... Lever, 8a ... Jig mounting hole, 8b ... Link mounting hole 9 ... Link, 9a ... Lever mounting hole 10 ... Connection pin 11 ... Cylinder 11a ... Flange, 11b ... Cylinder seat, 11c ... Jig mounting hole, 11d ... notches 12 and 14 ... fixing bolt 13 ... lid 15 ... jig, 15a ... fixing plate, 15b ... connecting part, 15c ... operating handle 17 ... central square pipe,
18, 19 ... Outer corner pipe, 20 ... Connection pipe, 21 ... Adapter, 22 ... Jack 23, 24, 25 ... Base 26 ... Wheel, 27 ... Jack, 28 ... Base

Claims (6)

A circuit breaker comprising a three-phase pole insulator and a link case supporting the pole pole insulator,
The pole pole insulators are arranged side by side so as to be arranged at the center and both ends of the link case,
A pole pole case provided at the lower end of the pole pole insulator provided at each end of the link case;
A rotary shaft provided through the side of the pole case and transmitting the operation of the link stored in the link case to the breaker of the breaker;
A side portion of the pole post case, and a cylinder provided coaxially with the rotating shaft,
The cylinder is
A circuit breaker provided by penetrating a side portion of the link case and supported by the side portion of the link case in a state of being rotatable in a circumferential direction of the cylinder. A lever to which the link is connected at an end of the rotating shaft on the cylinder case side;
2. The circuit breaker according to claim 1, wherein the lever includes a jig mounting hole to which a jig for braking the lever is mounted when the inclination of the pole pole insulator is changed.   3. The circuit breaker according to claim 1, further comprising a cylinder seat to which a jig for rotating the cylinder is attached on an inner peripheral side of a side portion of the cylinder.   4. The circuit breaker according to claim 2, wherein a side portion of the cylinder includes a notch portion through which the jig is inserted. 5. A circuit breaker comprising a three-phase pole insulator, a pipe for supporting each pole pole insulator, and a frame for supporting the pipe, and connecting each pipe to form a link case,
The pipe arranged in the center is provided extending in the direction of each pipe arranged outside,
Each of the pipes disposed on the outside includes a connection pipe coaxially with the pipe disposed on the outside at an opening end facing the opening of the pipe disposed on the center.
The lower end of the pedestal that supports the pipes arranged on the outside includes wheels that allow the pipes arranged on the outside to move in the interphase direction, and a jack that changes the height of the gantry,
One end of the connection pipe is fixed to the opening end of the pipe disposed outside, and the other end of the connection pipe extends in the direction of the pipe disposed at the center, and the pipe is disposed at the center. The circuit breaker is slidably supported on the circuit breaker.   A mobile substation comprising the circuit breaker according to any one of claims 1 to 5 on a movable carriage.

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