JP6880882B2 - Circuit breakers and mobile substations - Google Patents

Description

The present invention relates to circuit breakers and mobile substations. In particular, it relates to a mobile insulator type circuit breaker.

As shown in FIG. 16, the mobile substation 31 includes a disconnector 33, a vacuum circuit breaker 34, and a transformer 35 mounted on the loading platform 32 of one trailer, and is mounted on the loading platform 36 of another trailer. The cubicle 37 is provided. A control panel and a feeder panel are housed in the cubicle 37. A vacuum circuit breaker 34 is connected to the input (power receiving) overhead wire 38 via a disconnector 33, and a transformer 35 is connected to the vacuum circuit breaker 34. The vacuum circuit breaker 34 can automatically cut off the circuit and disconnect the failed system when, for example, an abnormality occurs in the equipment or the power system.

As shown in FIG. 17, in the vacuum circuit breaker 34 (insulator-shaped circuit breaker) according to the prior art, the pole pillars 39 of each phase are fixed to the link case 40 so as to extend perpendicularly to the ground. , Each pole column portion 39 is provided at a predetermined interval for the purpose of electrical insulation from other phases.

The pole pillar portion 39 includes a pole pillar insulator 41 extending upward from the link case 40 and a pair of blocking portion insulators 42, 43 provided at the upper end portion of the pole pillar insulator 41. Blocking section A blocking section is provided in the porcelain tubes 42 and 43. The disconnecting sections 42 and 43 extend substantially perpendicular to the interphase direction, a disconnector 33 is connected to the end of one blocking tube 42, and a transformer 35 is connected to the end of the other blocking tube 43. Be connected. A drive shaft (not shown) for opening and closing the blocking portion in the blocking portion insulators 42 and 43 is provided in the pole column insulator 41. The link case 40 houses a link mechanism that shuts off and turns on the vacuum circuit breaker 34, and opens and closes the circuit breakers in the circuit breakers 42 and 43 by means of an operating device (not shown), a link mechanism, a drive shaft, and the like. Is performed, and 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 portion 39, and there is a concern that the transportation cost will increase. Therefore, measures have been taken to reduce transportation costs (for example, Patent Documents 1-4).

U.S. Pat. No. 8,440,913 U.S. Patent Application Publication No. 2013/0270086 Japanese Unexamined Patent Publication No. 2009-268283 Jitsukaisho 60-073311

Since the conventional insulator type vacuum circuit breaker (VCB) for mobile substations is a pole column fixed type, in order to avoid restrictions during transportation, the interphase direction should be the trailer longitudinal direction when transporting the vacuum circuit breaker. The vacuum circuit breaker was loaded on the trailer bed. When using the vacuum circuit breaker, the interphase direction must be the lateral direction of the trailer, so it is necessary to secure a sufficient space for rotating the vacuum circuit breaker with respect to the longitudinal direction of the loading platform.

The present invention has been made in view of the above circumstances, and an object of the present invention is to reduce the transportation cost of the circuit breaker.

One aspect of the circuit breaker of the present invention that achieves the above object is a circuit breaker including a three-phase pole pillar porcelain and a link case that supports the pole pillar porcelain, and the pole pillar porcelain is the link. It is arranged side by side so as to be arranged at the center and both ends of the case, and the pole pillar case provided at the lower end of the pole pillar porcelain provided at each end of the link case and the side of the pole pillar case. A rotating shaft that penetrates the portion and transmits the operation of the link housed in the link case to the breaking portion of the circuit breaker, and a side portion of the pole pillar case that is provided coaxially with the rotating shaft. A cylinder is provided, and the cylinder is provided so as to penetrate a side portion of the link case, and is supported by the side portion of the link case in a state of being rotatable in the circumferential direction of the cylinder. It is said.

Another aspect of the circuit breaker of the present invention that achieves the above object is that the circuit breaker includes a lever to which the link is connected at the end of the rotating shaft on the link case side. It is characterized in that it is provided with a jig mounting hole to which a jig for braking the lever is mounted when the inclination of the pole pillar porcelain is changed.

Further, in another aspect of the circuit breaker of the present invention that achieves the above object, the circuit breaker is provided with a cylinder seat on the inner peripheral side of the side portion of the cylinder to which a jig for rotating the cylinder is attached. It is characterized by that.

In addition, another aspect of the circuit breaker of the present invention that achieves the above object is characterized in that, in the circuit breaker, the side portion of the cylinder is provided with a notch portion through which the jig is inserted.

In addition, another aspect of the breaker of the present invention that achieves the above object includes a three-phase pole pillar porcelain, a pipe that supports each pole pillar porcelain, and a pedestal that supports the pipe, and each pipe. A breaker for forming a link case by connecting the pipes, the pipe arranged in the central portion is provided extending in the direction of each pipe arranged on the outside, and each pipe arranged on the outside is said. The opening end portion facing the opening of the pipe arranged in the central portion is provided with a connecting pipe coaxially with the pipe arranged on the outer side, and the lower end portion of the gantry supporting the pipe arranged on the outer side is described as described above. comprising a wheel that can move a pipe disposed outside the phase direction, and a jack to change the height of the frame, the connecting pipe, one end of the connection pipe, the pipe is arranged in the outer It is fixed to the open end and the other end extends to the pipe direction is disposed in the central portion, the slidably supported by the pipe arranged at the center portion, and characterized in that.

Further, the mobile 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 the 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 state of the vacuum circuit breaker which concerns on 1st Embodiment of this invention. It is a figure which shows the use state of the vacuum circuit breaker which concerns on 1st Embodiment of this invention, (a) front view, (b) vertical sectional view of the cylinder part, (c) front perspective view, (d) rear perspective view. Is. It is a vertical cross-sectional view of the cylinder part which shows the use state of the vacuum circuit breaker which concerns on 1st Embodiment of this invention. It is a figure which shows the state in the process of transitioning from the use state to the transport state, is (a) a front view, (b) a vertical sectional view of a cylinder portion, (c) a front perspective view, and (d) a rear perspective view. It is a figure which shows the state when the connection of a link and a lever is released, (a) the front view which shows the state which the jig is attached to the lever, (b) the side view of FIG. It is a front view which shows the state which the connection of a lever is disconnected, (d) is a side view of FIG. 6 (c). It is a figure which shows the state at the time of changing the inclination of the pole pillar insulator, is (a) front view, (b) side view, (c) front perspective view. It is a figure which shows the state when the inclination of the pole pillar insulator is vertical, (a) front view, (b) side view, (c) front perspective view. It is a figure which shows the state after making the inclination of the pole pillar insulator vertical, (a) the front view, (b) the vertical sectional view of the cylinder part, (c) the front perspective view, (d) the rear perspective view. It is a figure which shows the transport state of the vacuum circuit breaker which concerns on 1st Embodiment of this invention, (a) front view, (b) vertical sectional view of the cylinder part, (c) front perspective view, (d) rear perspective view. 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 state 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 gantry. It is explanatory drawing explaining the procedure which expands an interphase. It is explanatory drawing explaining the procedure of shrinking between phases. It is a top view of (a) a mobile substation, and (b) a side view of the mobile substation. (A) is a front view of a vacuum circuit breaker, and (b) is a side view of the vacuum circuit breaker.

The circuit breaker and the mobile substation according to the embodiment of the present invention will be described in detail with reference to 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 column portions 2 of both end phases of the vacuum circuit breaker 1 on the link case 3, and both ends phase. The interphase dimension of the pole pillar is made variable by changing the inclination of the pole pillar insulator 4 of the above (note that the pole pillar portion 2 in the central portion is fixed). That is, the vacuum circuit breaker 1 is fixed to the link case 3 so that the three pole pillars 2 are substantially parallel (substantially perpendicular to the ground) as shown in FIG. 1 (transportation state). The width of the vacuum circuit breaker 1 in the interphase direction is shortened to reduce the transportation cost of the vacuum circuit breaker 1. Then, as shown in FIG. 2, by inclining the pole pillar insulators 4 at both ends (in use), the spatial distance required for insulation between the different pole pillar portions 2 is secured. In the description of the embodiment, the pole pillar portion 2 on one end side of the vacuum circuit breaker 1 will be described in detail, but the inclination of the pole pillar portion 2 on the other end side can be changed by the same configuration (and the same method). Can be made to. Further, since the configuration of the pole pillar portion 2 is the same as that of the conventional one (for example, the pole pillar portion 39 of the vacuum circuit breaker 34 shown in FIG. 17), detailed description thereof will be omitted.

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

As shown in FIG. 3B, a pole pillar case 5 is provided at the lower end of the pole pillar insulator 4. The rotating shaft 6 is provided by inserting the side surface of the pole pillar case 5 on the link case 3 side. The rotating shaft 6 transmits the power of the operation unit that shuts off and turns on the vacuum circuit breaker 1 to the drive shaft 7 that opens and closes the circuit breaker (not shown) provided in the pole column portion 2, and one end thereof. A link 9 is provided in the lever 8 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 the connecting portion 15b of the jig 15, which will be described in detail later, is connected (see, for example, FIG. 6A). Further, a cylinder 11 (pipeline) is attached coaxially with the rotating shaft 6 on the side surface of the pole pillar case 5 facing the link case 3.

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 insulator 4, and is rotatably supported by a pair of bearings 3b and 3c. The bearings 3b and 3c are provided in the cylinder 11 insertion portion of the link case 3 in a slidable state on the outer peripheral portion near the end portion of the cylinder 11.

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

A cylinder seat 11b projecting 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 in the direction perpendicular to the axis of the cylinder 11). A jig mounting hole 11c for connecting a jig 15 used when changing the inclination of the pole column insulator 4 is formed in the cylinder seat 11b. Further, as shown in FIG. 3D, a notch portion 11d is formed on the side surface of the cylinder 11 within a range not in contact with the bearings 3b and 3c, and the cylinder seat is formed from the outside through the notch portion 11d. The jig 15 can be attached to and operated on the 11b (or lever 8).

For example, as shown in FIG. 6, the jig 15 includes a fixing plate 15a fixed to the end of the link case 3, a connecting portion 15b attached to the lever 8 (or a cylinder seat 11b), and a connecting portion 15b. It is provided with an operation handle 15c for moving in the axial direction. The operation handle 15c rotates about 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) machined into a screw structure by turning the operating 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 that perform an operation of changing the inclination of the pole insulator 4 is reduced.

An opening 3d is formed at the end of the link case 3 (the end in the interphase direction), and the flange 3e is provided in the opening 3d. A bolt hole is formed in the flange 3e, and the fixing plate 15a of the jig 15 is attached to the flange 3e by the bolt, and the inclination of the pole column insulator 4 is changed.

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

First, the lid 13 is removed as shown in FIGS. 5 (c) and 5 (d). Note that FIG. 5 shows a state in which the fixing bolts 12 and 14 are removed (that is, a state in which the pole column insulator 4 can rotate), but the fixing bolts 12 and 14 use the jig 15 as a cylinder seat 11b. It is attached to and fixed to the flange 3e of the link case 3 and then removed. Similarly, in FIG. 9, which will be described in detail later, the fixing bolts 12 and 14 are fastened with the jig 15 attached to the cylinder seat 11b and the flange 3e of the link case 3.

As shown in FIG. 6, after the lid 13 is removed, the end portion of the connecting portion 15b is connected to the jig mounting hole 8a 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 to release the connection between the pole column and the actuator (see FIG. 6D). Since a pressure contact force is applied to the lever 8 from the pole column side, after disconnecting 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 lever 8 is rotated. 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). ). In response to the movement of the connecting portion 15b, the cylinder 11 rotates (counterclockwise in FIG. 7A), and the pole insulator 4 is in the transport state (see FIG. 8). After the pole pillar insulator 4 is in the transport state, the fixing bolts 12 and 14 are fastened to fix the pole pillar 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 lever 8 and the link 9 are disconnected.

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

When shifting from the transport state to the use state, the pole pillar portion 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 insulator 4 is tilted so as to be in use. Then, when connecting the pole column-operator, the connecting portion 15b of the jig 15 is attached to the lever 8, the connecting portion 15b is moved in the pushing direction, and the lever 8 is moved to the position of the link 9 to move the lever 8 to the lever 8. 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 to connect the lever 8 and the link 9.

According to the vacuum circuit breaker 1 according to the first embodiment of the present invention as described above, the cylinder 11 (sliding portion) attached to the pole pillar portion 2 of both ends of the vacuum circuit breaker 1 is inside the link case 3. The structure is slidable, and the interphase dimension of the pole column portion 2 is variable by varying the inclination of the pole column insulator 4 at both ends. That is, a rotation support portion is formed by a cylinder 11 corresponding to a rotation shaft and a link case 3 having bearings 3b and 3c inside, and when the interphase dimensions are fixed, the pole pillar 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 so that the contact points between the bearings 3b and 3c and the cylinder 11 can slide.

When using the vacuum circuit breaker 1, the jig 15 is connected to the cylinder seat 11b through the notch 11d formed on the side surface of the cylinder 11, and the cylinder 11 is rotated to tilt the upright pole pillar portion 2. Cylinder. By tilting the pole column portion 2, the interphase distance of the pole pillar portion 2 is widened, so that the required aerial insulation distance can be obtained. Further, when transporting the vacuum circuit breaker 1, the jig 15 is connected to the cylinder seat 11b, and the tilted pole pillar portion 2 is made upright by turning the cylinder 11. Since the pole column portion 2 stands upright, the interphase distance is shortened, so that the width of the vacuum circuit breaker 1 in the phase direction is shortened.

As a result, when the vacuum circuit breaker 1 is transported, the dimension of the pole column portion 2 of the vacuum circuit breaker 1 in the interphase direction can be shortened, and the space in the longitudinal direction of the trailer loading platform for transporting the vacuum circuit breaker 1 can be reduced. be able to. In particular, if the dimension of the pole column portion 2 of the vacuum circuit breaker 1 in the interphase direction can be made shorter than the width of the trailer carrier in the lateral direction, the vacuum is set so that the interphase direction of the polar column 2 is in the lateral direction of the trailer. The circuit breaker 1 can be arranged.

As a result, the space for rotating the vacuum circuit breaker, which has been conventionally required for the vacuum circuit breaker, can be omitted, and the spatial transportation cost is reduced. In addition, since it is no longer necessary to provide a rotating table for rotating the vacuum circuit breaker by 90 ° on site, which was conventionally required, the transportation cost for installing and removing the vacuum circuit breaker is reduced. To.

Further, in the vacuum circuit breaker 1, since the size 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 connecting the link 9 and the lever 8 when the cylinder 11 operates. By attaching the jig 15 to the lever 8 and removing the connecting pin 10, the connecting pin 10 can be safely removed. Further, since the positions of the link 9 and the lever 8 are displaced at the time of reconnection, the jig 15 can be attached to the lever 8 and the lever 8 can be slowly operated to a position where 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 such as mobile substation applications where there are many opportunities to switch between use and operation, 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 insulator 4 can be changed without removing the link case 3, it is possible to easily switch between the used state and the transported state with a small number of parts.

[Second Embodiment]
The vacuum circuit breaker according to the 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 breaker 16 according to the second embodiment has a central square pipe 17 that supports the central pole pillar insulator 4 of the vacuum breaker 16 and an outer square pipe 18 that supports both side pole pillar insulators 4. (Specifically, the connecting square pipe 20) and the outer square pipe 19 are overlapped with each other, and the double-sided pole column insulators 4 can be slid in the interphase direction.

As shown in FIG. 12, the vacuum breaker 16 includes a central square pipe 17 that supports the central pole insulator 4, outer square pipes 18 and 19 that support the bilateral pole insulators 4, and a connecting square pipe 20. The link case is formed by the central square pipe 17 and the outer square pipes 18 and 19 (and the connecting square pipe 20). Although not shown, the link between the pole column insulators 4 is removable and has a structure that can be attached after the 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 is coaxial with the outer square pipe 18 (or the outer square pipe 19). It is provided at the open end of the square pipe 19). One end of the connecting square pipe 20 is fixed to one end of the outer square pipe 18 (or the outer square pipe 19). The other end of the connecting square pipe 20 extends in the direction of the central square pipe 17, is inserted into the central square pipe 17, and is slidably supported.

The central square pipe 17 is provided so as to extend in the outer square pipes 18 and 19 directions. At the end of the central square pipe 17, a flange 17a for fixing the outer square pipes 18 and 19 (or an adapter 21 provided between the central square pipe 17 and the outer square pipes 18 and 19 at the time of interphase expansion), 17b is provided. Further, on the outer peripheral portion of the central square pipe 17, a jack mounting portion 17c to which the jack 22 is mounted when the interphase is expanded (or stored) is provided. A pole pillar insulator 4 is fixed to the upper part of the central square pipe 17, and a gantry 23 is provided to the lower part of the central square pipe 17.

The outer square pipe 18 is provided so that its opening faces the opening of the central square pipe 17. The end of the outer square pipe 18 is provided with a flange 18a for fixing to the central square pipe 17 (or the adapter 21). Further, the outer peripheral portion of the outer square pipe 18 is provided with a jack mounting portion 18b to which the jack 22 is mounted when the interphase is expanded (or stored). A pole pillar insulator 4 is fixed to the upper part of the outer square pipe 18, and a 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 square pipe 19. A pole pillar insulator 4 is fixed to the upper part of the outer square pipe 19, and a gantry 25 is provided to the lower part.

As shown in FIG. 13, wheels 26 are provided at the lower end of the gantry 24, and the outer square pipe 18 can slide in the interphase direction. Further, a pedestal 28 is provided at the lower end of the pedestal 24 via a jack 27. The jack 27 (for example, a screw jack) is a mechanism that changes the distance between the lower end surface of the gantry 24 and the pedestal 28. 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 wheels 26. support. As a result, the outer square pipe 18 can be easily slid in the interphase direction. Similarly, the gantry 25 is provided with wheels and jacks, and the outer square pipe 19 can slide in the interphase direction.

Here, the procedure for expanding or contracting the phases of the vacuum circuit breaker 16 will be described in detail. In this description, the central square pipe 17 and the outer square pipe 18 portion will be described in detail, but expansion or contraction of the central square pipe 17 and the outer square pipe 19 can also be performed by the same method.

As shown in FIG. 14, when expanding the phase of the vacuum breaker 16, 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 that are fixed are removed, and the outer square pipe 18 is slid by the jack 22. In this example, jacks 22 are provided above and below the central square pipe 17, but one of the jacks 22 can be used as 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 and 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. After the expansion, the jack 22 is removed (it is also possible to operate with the jack 22 attached).

As shown in FIG. 15, when contracting between the phases of the vacuum breaker 16, the bolts and nuts fixing the adapter 21 and the central square pipe 17 (and the bolts fixing the adapter 21 and the outer square pipe 18) Remove the nut) and remove the adapter 21. Then, a jack 22 is attached between the central square pipe 17 and the outer square pipe 18, and the outer square pipe 18 is slid by the jack 22. After sliding, the central square pipe 17 and the outer square pipe 18 are fastened by bolts 29 and nuts 30. As in the case of 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 dimensions 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 loading platform can be reduced, and the spatial transportation cost can be reduced. Further, since the operation of rotating the vacuum circuit breaker 16 and the installation of a turntable for rotating the vacuum circuit breaker 16 are not required, 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 applications such as mobile substation applications where there are many opportunities to switch between use and operation, the inclination of the pole insulator 4 can be changed. Can be easily performed without increasing the number of parts.

Although the circuit breaker and the mobile substation of the present invention have been described above by showing specific embodiments, the circuit breaker and the mobile substation of the present invention are not limited to the embodiments, and their characteristics are described. The design can be changed as appropriate within a range that does not impair, and the changed design also belongs to the technical scope of the present invention.

For example, by forming a vacuum circuit breaker that combines the configuration of the vacuum circuit breaker 1 according to the first embodiment of the present invention and the configuration of the vacuum circuit breaker 16 according to the second embodiment, the dimensions of the pole column portion 2 in the interphase direction. Can be made shorter.

Further, the circuit breaker of the present invention can be suitably used as, for example, an insulator-shaped circuit breaker mounted on a 145 kV mobile substation, but the configuration of the circuit breaker is not limited to the embodiment and is appropriately arbitrary. It can be applied to circuit breakers.

Further, the circuit breaker of the present invention can be suitably used for a mobile substation where the inclination of the pole column portion 2 is frequently changed, but the transportation cost (space) can be applied by applying the fixed circuit breaker during transportation. Needless to say, the cost of work and work is reduced.

1, 16 ... Vacuum circuit breaker (circuit breaker)
2 ... Polar pole 3 ... Link case, 3a ... Storage case 3b, 3c ... Bearing, 3d ... Opening, 3e ... Flange 4 ... Polar pole jig 5 ... Polar pole case, 5a ... Flange 6 ... Rotating shaft, 7 ... Drive Shaft 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, 14 ... Fixing bolts 13 ... Lid 15 ... Jig, 15a ... Fixing plate, 15b ... Connecting part, 15c ... Operating handle 17 ... Central square pipe,
18, 19 ... outer square pipe, 20 ... connecting pipe, 21 ... adapter, 22 ... jack 23, 24, 25 ... pedestal 26 ... wheels, 27 ... jack, 28 ... pedestal

Claims (6)

A circuit breaker including a three-phase pole insulator and a link case for supporting the pole insulator.
The pole insulators are arranged side by side so as to be arranged at the center and both ends of the link case.
A pole pillar case provided at the lower end of a pole pillar insulator provided at each end of the link case, and a pole pillar case provided at the lower end portion of the pole pillar insulator.
A rotating shaft provided through the side portion of the pole pillar case and transmitting the operation of the link housed in the link case to the blocking portion of the circuit breaker.
It is provided with a cylinder which is a side portion of the pole pillar case and is provided coaxially with the rotating shaft.
The cylinder
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 the circumferential direction of the cylinder. A lever to which the link is connected is provided at the end of the rotating shaft on the link case side.
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 insulator is changed. The circuit breaker according to claim 1 or 2, wherein a cylinder seat to which a jig for rotating the cylinder is attached is provided on the inner peripheral side of the side portion of the cylinder. The circuit breaker according to claim 2 or 3, wherein the side portion of the cylinder includes a notch portion through which the jig is inserted. A circuit breaker that includes a three-phase pole insulator, a pipe that supports each pole insulator, and a pedestal that supports the pipe, and connects the pipes to form a link case.
The pipe arranged in the central portion is provided so as to extend in the direction of each pipe arranged on the outside.
Each pipe arranged on the outside is provided with a connecting pipe coaxially with the pipe arranged on the outside at an opening end facing the opening of the pipe arranged in the center.
At the lower end of the gantry that supports the pipe arranged on the outside, a wheel that enables the pipe arranged on the outside to move in the interphase direction and a jack that changes the height of the gantry are provided.
The connecting pipe, one end of the connection pipe is secured to the open end portion of the pipe disposed on the outer side, the other end extending to the pipe direction is disposed in the center portion, disposed in the central portion A circuit breaker characterized by being slidably supported by a pipe. A mobile substation equipped with the circuit breaker according to any one of claims 1 to 5 on a movable carriage.

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