JP5905814B2 - Substation installation structure and installation method - Google Patents

Description

  The present invention relates to not only new and existing high-voltage power receiving equipment, but also to a high-voltage power receiving equipment of a certain environment, and a structure for installing a substation equipment for transforming distribution line voltage to commercial voltage in large-scale consumers such as medium- and high-rise apartments and Regarding the method.

  Conventionally, for existing or newly built apartment buildings and 20kV class three-phase three-wire distribution area medium-sized buildings that are more than 50kVA and less than or equal to 2000kVA, substation facilities owned by electric power companies are provided at locations provided by customers. There is known a power distribution system that supplies power by installing a cable. As this substation equipment, an extra high voltage or a high voltage to low voltage transformer, a power fuse, and the like are installed. As a place for installing this substation equipment, it is common to use a substation equipment room provided as a rental room to a power company from a customer on the middle- and high-rise apartment house side.

  By the way, this substation equipment room has a wide range of entrances, depths, and ceiling heights. Therefore, in the construction of substation equipment, metal round pipes are used on site according to the layout of the provided substation equipment room. , And fix the round pipes, which will be the pillars, at multiple locations on the concrete floor with anchor bolts, etc., and assemble the round pipes to these pillars in the frontage and depth directions, and assemble them into a frame shape as a whole. A transformer, a power fuse, a primary distribution line, a primary switch and the like have been installed (for example, Patent Document 1).

JP 2005-39938 A

  However, in the method shown in Patent Document 1 described above, the round pipe is cut on-site and assembled into a frame shape, and therefore there are many on-site processings, so that the construction time becomes long and the total cost increases. was there. In particular, when installing the substation equipment, the power supply to the consumer side is stopped, so the construction time is limited, and it is necessary to improve the efficiency and labor saving of the field work.

  In addition, since installation space is limited in existing buildings, it is necessary to install substation equipment as close as possible while maintaining a space for heat dissipation. There is also a problem that it becomes work. In particular, substation equipment such as transformers is heavy, and in order to lift it in a small work space, carry it in, and install it, special lifting equipment and installation equipment must be prepared. In order to complete the work within the designated construction time, a large number of personnel and facilities are required, which causes an increase in construction costs.

  Therefore, the present invention has been made in view of the above points, and in not only newly-built and existing high-voltage power receiving equipment, but also in any environment of high-voltage power receiving equipment, a substation that transforms from distribution line voltage to voltage for middle- and high-rise apartment buildings. It is an object of the present invention to provide an installation structure and an installation method of a substation equipment that can improve the efficiency and labor saving of field work when installing the equipment.

  In order to solve the above-mentioned problems, the present invention is an installation structure of a substation facility including a transformer, and is constructed by assembling a plurality of unit frames composed of angle members so as to be disassembled, and a unit. In the frame, the fixing means for fixing the substation equipment other than the transformer, in the assembled state of the frame part, the wiring means for connecting the devices included in the substation equipment, formed in the assembled frame part, The transformer installation space where the transformer is installed, the angle member located on the bottom surface of the transformer installation space, the jack part that can be advanced and retracted in the vertical direction, and the jack part are connected to advance and retract the jack part. And an operation unit that supplies a driving force of the operation unit, the operation unit having a length extending from the jack unit to above the transformer.

Another invention is a method of installing a substation facility including a transformer,
(1) An exploded state step for fixing a substation facility other than a transformer to a unit frame portion constituted by an angle member;
(2) A carrying-in step for carrying the unit frame produced in the disassembly state step into the installation site of the substation equipment;
(3) Assembling the unit frame to construct the frame part, and a frame construction step for connecting devices included in the substation equipment;
In the frame construction step (3) above,
(3-1) A jack that secures a transformer installation space in which the transformer is installed in the frame portion, and engages a jack portion that can be advanced and retracted vertically in an angle member positioned on the bottom surface of the transformer installation space. Installation steps;
(3-2) An operation portion having a length extending from the jack portion to above the transformer is connected to the jack portion, and a driving force for moving the jack portion forward and backward is supplied to the jack portion via the operation portion. And a jack-up step for raising the unit frame.

  According to these inventions, in the installation work of the substation equipment in the substation equipment room, the substation equipment (transformer for power trading or trading instrument, power factor improvement equipment required for the unit frame in a place other than the installation site such as a factory beforehand. , Disconnectors, current transformers, instrument transformers, relays, and circuit breakers, etc.), then bring them into the installation site, assemble them into a frame as a whole, and then transform them Connect devices included in the. As a result, on-site assembly work can be reduced.

  In addition, a jack part is provided at the bottom of the transformer installation space, that is, the lower end of the frame part, so that the frame itself can have the function of lifting the unit frame or the frame part. Therefore, it is possible to easily carry in and install a heavy transformer. In particular, since the operation part for supplying driving force to the jack part is provided above the transformer, that is, from the upper side of the transformer installation space to the jack part on the bottom surface, the space above the transformer. It is possible to perform work using this, and it is possible to respond flexibly even in a small installation place.

In the above invention, the jack portion and the operation portion are formed of an integral rod-shaped member, and the angle member located on the bottom surface of the transformer installation space is provided with an engagement hole penetrating in the vertical direction, A threaded portion that is screwed into the engagement hole is formed at the tip of the rod-shaped member. When jacking up, the rod-shaped member is threadedly engaged with the engagement hole and the operation portion is interposed. Then, the driving force is supplied, the rod-shaped member protrudes downward, and the unit frame is raised .

Thus, according to the present invention, the jack portion and the operation portion are formed by an integral rod-shaped member and screwed into the engagement hole of the angle member, so that the lifting of the substation equipment is complicated. It is possible to simplify the operation without using a simple device or instrument, and the equipment cost can be reduced, and the working time can be shortened by simplifying the installation and operation.

  In the above invention, the roller part is detachably attached to the lower surface of the angle member located on the bottom surface of the transformer installation space, and when carrying in, the unit frame and the unit frame with the roller part attached to the bottom surface of the unit frame It is preferable to remove the roller part when the substation is carried into the installation place and the unit frame is raised by the jack part in the jack-up step.

  In this case, since the transformer can be mounted on the unit frame and loaded with the roller portion attached to the angle member, the installation work can be performed easily and quickly without requiring a special loading device. be able to. Moreover, since the roller part can be removed from the lower end of the frame part and removed by jacking up with the jack part provided in the frame part, the frame with the substation equipment attached without requiring a special lifting device The unit can be installed stably.

  As described above, according to the structure of the present invention, not only newly built / existing high voltage power receiving equipment but also any kind of high voltage power receiving equipment of any environment, the substation equipment for transforming from the distribution line voltage to the voltage for middle- and high-rise apartments is installed. In doing so, it is possible to improve the efficiency and labor saving of on-site work.

Specifically, the following effects can be expected.
(1) In order to install receiving and transforming equipment in a limited space, power trading transformers or trading instruments, power factor improvement equipment, disconnectors, instrument current transformers, instrument transformers, relays, In addition, power receiving equipment such as a circuit breaker can be installed in a minimum space.

(2) Conventionally, it is common to partition the apparatus by polygonal surfaces. However, according to the present invention, since only one section screen is required, it is possible to reduce the restrictions on the installation location.

(3) Since the framework is formed with an L-shaped angle in order to reduce the weight, the barriers such as the side surfaces can be kept simple.

(4) The apparatus described above has a structure that can be disassembled in several steps, and can be easily carried by a person because the apparatus is slimmed, lightened, and disassembled.

(5) Since the frame portion has an angle structure, unlike the box-type power receiving device, it is possible to easily set the drawing-in place of the lead-in wire and the lead-out wire, and the remodeling work at the site can be easily performed.

(6) Because the unit frame itself is equipped with a detachable roller section in the frame section and a jack section that can be operated even in a narrow space, it is necessary to carry in and lift heavy transformer equipment such as transformers. The frame portion can be installed easily and quickly without using any special device or equipment.

(A) is a front view which shows the installation structure of the transformation equipment which concerns on embodiment, The figure (b) is a side view which shows the installation structure of the transformation equipment which concerns on embodiment. It is a perspective view which shows schematic structure of the storage rack which concerns on embodiment. (A)-(d) is explanatory drawing which shows the structure and assembly of the storage rack which concern on embodiment. It is explanatory drawing which shows the procedure of the installation method of the transformation equipment which concerns on embodiment. It is a chart showing the procedure of the installation method of the substation equipment concerning an embodiment. It is a front view which shows the arrangement | sequence of the transformation equipment in the transformation equipment room which concerns on embodiment. It is a side view which shows the installation structure of the substation equipment which concerns on a 1st modification. (A) And (b) is explanatory drawing which shows the installation method of the storage rack which concerns on a 1st modification. It is a perspective view which shows schematic structure of the installation structure of the transformation facility which concerns on a 2nd modification.

(Configuration of storage rack for substation equipment)
Embodiments of the present invention will be described with reference to the drawings. Fig.1 (a) is a front view which shows the installation structure of the transformation equipment which concerns on embodiment, and FIG.1 (b) is a side view which shows the installation structure of the transformation equipment. FIG. 2 is a perspective view illustrating a schematic configuration of the storage rack of the substation equipment according to the present embodiment, and FIG. 3 is an explanatory diagram illustrating the configuration and assembly of the storage rack according to the embodiment. In the present embodiment, the storage rack 55 is installed on a concrete floor in an existing transformer room, and substation equipment is installed therein. In the present embodiment, the case where the substation equipment is installed in the existing building will be described as an example. However, the present invention is not limited to this, and for example, only a newly built and existing high-voltage power receiving equipment. It can be applied to any high-voltage power receiving equipment in any environment.

  Specifically, the storage rack 55 is a storage frame that is constructed by disassembling a plurality of unit frames 50a and 50b made of angle members and assembling them. The storage rack 55 is in a state of being disassembled into unit frames, fixing means for fixing each device of the substation equipment (transformer 40 and substation equipment other than the transformer 40) to the unit frames 50a and 50b, In a state in which the frame is assembled and the storage rack 55 is completed, distribution lines 11 to 13 that connect devices included in the substation equipment are included.

  The transformer 40 is a device that converts (transforms) a high voltage and a large current of an AC circuit into a low voltage and a small current, and is for a power meter having functions of a meter transformer VT and a meter current transformer CT. There is a transformer (VCT). In addition, transformers other than transformers include high-voltage equipment and low-voltage equipment. Examples of high-voltage equipment include PC (high-voltage cutout switch), LBS (high-voltage AC load switch) including fuse, and VCB (high-voltage vacuum circuit breaker). , Various protection devices, transformers (single-phase and three-phase), high-voltage phase-advancing capacitors, high-voltage reactors, insulators, insulators (mold type), high-voltage wire support materials, cleats, voltmeters (including changeover switches), current systems (switching) Switch), VT (high voltage instrument transformer), CT (high voltage instrument current transformer), DS (disconnector), ZCT (zero phase current transformer) and the like.

  The low-voltage equipment includes low-voltage branching devices, low-voltage circuit breakers, low-voltage ammeters (including changeover switches), CT (low-voltage current transformer through-type), CT (low-voltage current transformer busbar type), and low-voltage voltmeters (switching). Switch), copper band and copper band support material, flexible copper band and copper band support material, and the like.

  Moreover, KIP (EP rubber insulated wire for high-voltage equipment wiring) and OE (outdoor polyethylene insulated wire) are used as the high-voltage wires for the distribution lines 11 to 14 that connect each device. WL-1 (flame retardant polyflex electric wire), HIV (600V type 2 vinyl insulated wire), IV (600V vinyl insulated wire) are used.

  In the present embodiment, indoor high-voltage AC load switches (LBS) 20a to 20c and phase-advancing capacitors 25a to 25c are arranged in the storage rack 55 as transformer devices other than the transformer.

  In this embodiment, the storage rack 55 is provided with a transformer installation space 40a for installing the transformer 40 under the LBS 20 (20a to 20c) in order to reduce the size. In the assembled storage rack 55, a part or all of the substation equipment is stacked above the transformer installation space 40a.

  Specifically, the LBS 20 is housed in the assembled storage rack 55 and fixed to the unit frame 50a. In each unit frame 50a, 50b, three primary distribution lines 13 connected to the high voltage cabinet or three primary distribution lines (high voltage bus lines) connected to the primary distribution line are installed. The primary side distribution line 13 is comprised by the polyethylene insulated wire etc., is connected to LBS20, The transformer 40 is attached via the distribution line 12 through LBS20a-20c. The transformer 40 and the phase advance capacitor 25 are connected via the distribution line 11.

  Note that an attachment plate 41 on which the transformer 40 is placed is hung on an angle member arranged opposite to the bottom of the unit frame 50b arranged on the lower side. The earthquake-resistant member 70 is arranged, and the transformer 40 is installed in the storage rack 55 via the earthquake-resistant member 70. The earthquake-resistant member 70 is formed by alternately laminating elastic bodies such as rubber and metal members, for example, and absorbs vibration from the transformer 40 to mute the power when receiving power.

  Then, the transformer 40 is installed on the lower unit frame 50b, and the upper unit frame 50a is further assembled on the upper unit frame 50b. As a result, in the assembled storage rack 55, part or all of the substation equipment is installed. However, it becomes the form piled up above the transformer installation space 40a.

  The branch line 14 from the LBS 20 is used as a 100V power supply wiring for each customer. Since the LBS 20 is positioned at the top of the storage rack 55, the branch line 14 connected to the LBS 20 can be freely routed in each direction from above the storage rack 55.

  Further, in the present embodiment, the storage rack 55 is engaged with the angle member 50 located on the bottom surface of the transformer installation space 40a in order to increase the efficiency and labor saving of the field work, and can move forward and backward in the vertical direction. There are provided a jack portion 30 and an operation portion 31 that is connected to the jack portion 30 and supplies a driving force for moving the jack portion 30 back and forth.

  In this embodiment, the jack part 30 and the operation part 31 are formed as an integral rod-shaped member 32 as shown in FIGS. 1 and 2, and the operation part 31 on the upper part of the rod-shaped member 32 is It has a length extending from the jack portion 30 located at the bottom of the transformer installation space 40a to above the transformer 40. Specifically, the angle member 50 located on the bottom surface of the transformer installation space 40a is provided with an engagement hole 51 penetrating in the vertical direction, and the jack portion 30 at the tip of the rod-shaped member 32 is engaged with the engagement member 51. A screw portion 33 to be screwed into the hole 51 is formed.

  In the present embodiment, a driving unit 60 that rotates the operation unit 31 such as an electric torque wrench can be attached to the upper end of the operation unit 31, and is integrally formed by rotating the operation unit 31 by the driving unit 60. The jack portion 30 thus made is rotated. When the jack portion 30 is rotated, the storage rack 55 is advanced and retracted in the vertical direction by the screw portion 33 screwed into the engagement hole 51. In the present embodiment, the driving means 60 uses an electric torque wrench, but it is only necessary to be able to rotate a rod-like member. For example, a power torque wrench or a hydraulic torque wrench incorporating an air motor may be used. Alternatively, the operator may grasp and rotate the operation unit 31 without using a tool.

  Moreover, as shown in FIG. 3, the roller part 80 is attached to the lower surface of the angle member 50 located in the bottom face of the transformer installation space 40a so that attachment or detachment is possible. The roller unit 80 is attached to the storage rack 55 when carrying in the substation equipment, and is removed during installation.

  In the present embodiment, the operation portion 31 and the jack portion 30 are integrated with the rod member 32. However, the present invention is not limited to this, and is a means for lifting the storage rack 55. Any device having a function as an operation unit for transmitting a driving force to the jack unit and the lifting means is applicable. For example, the jack part 30 may be a member different from the operation part 31 such as a bolt member, and the operation part may be an instrument or a device such as a wrench or a spanner for turning the bolt member.

(How to install substation equipment)
By using the storage rack 55 having the above configuration, the substation equipment installation method of the present invention can be implemented. FIG. 4 is an explanatory diagram showing an outline of a method for installing a substation facility according to the present embodiment, FIG. 5 is a flowchart thereof, and FIG. 6 is an array of substation facilities in the electrical facility room according to the present embodiment. FIG. Here, a case will be described as an example where, in the apartment house 220, a substation facility owned by the power company is installed and supplied to a substation facility room 220a provided as a rental room from a consumer to the power company.

  First, the disassembly state step (S101) is performed by the worker 201 at a place away from the substation equipment room 220a, which is a construction site, such as the factory 200. Specifically, the angle member 50 is assembled to manufacture the unit frames 50a and 50b, and the storage rack 55 is disassembled into a plurality of unit frames 50a and 50b. In this state, the transformer facilities (LBS 20a to 20c and phase advance capacitors 25a to 25c) are fixed to the angle members constituting the unit frames 50a and 50b.

  Next, a carry-in step (S102) is performed. Here, the unit frames 50a and 50b manufactured in the disassembly state step are transported by the vehicle 210 such as a truck and are carried into the substation equipment room 220a that is the installation location. At this time, as shown in FIG. 3A, the unit frames 50a and 50b and the substation equipment are carried into the substation equipment room 220a, which is the installation location, with the roller unit 80 attached to the bottom surface of the unit frame 50b.

  Then, in the work space of the substation equipment room 220a, the unit frames 50a and 50b that are carried in are assembled to construct the storage rack 55 (S103). In the assembled storage rack 55, a transformer installation space 40a in which the transformer 40 is installed is secured, and a mounting plate 41 is installed on the lower surface in the transformer installation space 40a. The transformer 40 is installed on the top. As a result, in the assembled storage rack 55, a part or all of the substation equipment is stacked above the transformer installation space 40a. At this time, for example, the mounting plate 41 is provided with an earthquake-resistant member 70 formed by overlapping an elastic body and a metal member, and the transformer 40 is installed in the storage rack 55 via the earthquake-resistant member. So that

  Thereafter, the storage rack 55 in which the transformer 40 is installed is moved to the installation location. In this embodiment, as shown in FIG. 3, it shall arrange | position on the wall 221b in the substation equipment room 220a. At this time, since the storage rack 55 is attached to the roller unit 80, it can be easily moved.

  And the jack installation step (S104) which engages the jack part 30 with the moved storage rack 55 is implemented. In this jack installation step, as shown in FIG. 3A, the screw portion 33 of the jack portion 30 is screwed into the engagement hole 51 formed in the angle member 50 located on the bottom surface of the transformer installation space 40a. Let

  After the jack portion 30 is engaged, a jacking up step (S105) is performed in which the driving force for moving the jack portion 30 back and forth is supplied to the jack portion 30 to raise the storage rack 55. Specifically, as shown in FIG. 3 (b), the drive means 60 is connected to the upper portion of the operation portion 31 with the rod-shaped member screwed into the engagement hole 51, and the operation portion 31 is interposed therebetween. Then, the rod-shaped member 32 is rotated.

  When the rod-shaped member is rotated, as shown in FIG. 3C, the rod-shaped member protrudes downward by the screw portion 33 screwed into the engaging hole 51, and the unit frames 50a and 50b. To raise. And the roller part 80 is removed in the state which the unit frames 50a and 50b rose.

  After removing the roller portion 80, as shown in FIG. 3D, the rod-shaped member 32 is rotated via the operation portion 31, and the inside of the storage rack 55 is lowered to bring the storage rack 55 into the substation equipment room. It is installed on the floor surface 221a (S106). After the installation is completed, the jack part 30 is removed.

  Thereafter, the devices included in the substation equipment are connected to each other by the distribution lines 11 to 13 (S107). Further, as shown in FIG. 6, the assembled storage racks 55 are arranged in a plurality so as to be adjacent to the substation equipment 1 connected to the responsibility demarcation point cabinet, and are connected via the branch line 14. In addition, you may implement the connection of the distribution lines 11-13 when assembling the unit frames 50a and 50b.

(Action / Effect)
According to the present embodiment, in the installation work of the substation equipment in the substation equipment room, the substation equipment (transformer, power fuse, primary distribution line and First, the switch on the primary side is assembled, and it is carried to the installation site in that state. After assembling the frame as a whole at the site, the devices included in the substation equipment are connected to each other. As a result, on-site assembly work can be reduced.

  Moreover, the jack part 30 is provided in the bottom face of the transformer installation space 40a, that is, the lower end of the storage rack 55, whereby the frame itself can have a function of lifting the unit frames 50a, 50b or the storage rack 55. It is possible to easily carry in and install a heavy transformer facility without requiring a heavy lifting equipment or a carrying-in device. In particular, since the operation unit 31 for supplying driving force to the jack unit 30 is provided so as to reach the jack unit 30 on the bottom surface from the upper side of the transformer, that is, from the upper side of the transformer installation space 40a. Work can be performed using the space above the vessel, and it is possible to respond flexibly even in a small installation place.

  Furthermore, in this embodiment, since the jack part 30 and the operation part 31 are formed with an integral rod-shaped member and screwed into the engagement hole 51 of the angle member, the lifting of the substation equipment is increased. This can be done easily without using complicated devices and instruments, and the equipment cost can be reduced, and the work time can be shortened by simplifying the installation and operation.

  In the present embodiment, the roller unit 80 is detachably attached to the lower surface of the storage rack 55 located on the bottom surface of the transformer installation space 40a, and the roller unit is mounted on the bottom surface of the unit frames 50a and 50b when carrying in. With the 80 attached, the unit frames 50a and 50b and the substation equipment are carried into the installation location.

  In the jack-up step, the roller unit 80 is removed when the unit frames 50a and 50b are raised by the jack unit 30. Therefore, the transformer is installed in the unit frame 50a and 50b with the roller unit 80 attached to the angle member. It can be loaded and loaded. For this reason, according to this embodiment, installation work can be performed easily and quickly without requiring a special loading device.

  Moreover, since the roller part 80 can be removed and removed from the lower end of the storage rack 55 by jacking up with the jack part 30 provided in the storage rack 55, the substation equipment can be installed without requiring a special lifting device. The attached storage rack 55 can be stably installed.

(Example of change)
In the above-described embodiment, the storage rack 55 is advanced and retracted in the vertical direction by screwing the screw portion 33 of the jack portion 30 engaged with the engagement hole 51. However, the present invention is limited to this. However, various modifications can be made. FIG. 7 is a side view showing the installation structure of the substation equipment according to the first modified example, and FIGS. 8A and 8B are explanatory views showing the installation method of the storage rack according to the first modified example. . FIG. 9 is a perspective view showing a schematic configuration of the installation structure of the substation equipment according to the second modification. Note that in this modification, the same components as those in the above-described embodiment are denoted by the same reference numerals, and the functions and the like are the same unless otherwise specified, and the description thereof is omitted.

(Modification 1)
For example, as shown in FIG. 7, hydraulic or electric driving means 61 that is installed in the operation unit 31 and moves up and down using the jack unit 30 and the operation unit 31 as a support may be used. In this case, the driving means 61 and the support frame 52, which is the unit frame 50 extending perpendicularly to the bottom surface 221a, are connected using the connecting member 62.

  In use, first, the substation equipment (transformer 40, LBSs 20a to 20c, and phase advance capacitors 25a to 25c) is fixed to the angle members constituting the unit frames 50a and 50b, and moved to the installation location. Then, a jack-up step is performed at the installation location. Specifically, as shown in FIG. 8A, the driving means 61 is moved upward with the jack portion 30 as a support, and the column frame 52 connected to the driving means 61 is raised.

  Thereafter, with the roller unit 80 in a floating state, the roller unit 80 is removed, and after the roller unit 80 is removed, the drive unit 61 is moved downward as shown in FIG. The storage rack 55 is placed on the floor 221a of the substation equipment room by lowering the inside.

  Even in such a modified example, the lifting of the substation equipment can be easily performed without using complicated devices and instruments, the equipment cost can be reduced, and the work time can be shortened by simplifying the installation and operation. can do.

(Modification 2)
Further, for example, the jack 30 may be jacked up by using a gear mechanism that simultaneously twists the four jacks 30 to advance and retract the storage rack 55 in the vertical direction. Specifically, as shown in FIG. 9, the gear mechanism extends horizontally with respect to the floor surface, and has a first shaft 37 having one end portion serving as the operation unit 31, a first shaft 37, and the like. The third shaft 38 disposed on the same axis and opposite to the operation unit 31 is orthogonal to the first shaft 37 and the third shaft on the same plane, and the first shaft 37 rotates. A pair of second shafts 35 and 35 that transmit force to the jack portion 30 are provided.

  In this modified example, at the portion where the first shaft 37 and the third shaft 38 intersect the second shaft, the rotational force of the first shaft 37 or the third shaft 38 is applied in a plurality of directions. Gear boxes 36a and 36b to be branched are installed. In this modification, the gear boxes 36a and 36b are formed of, for example, a bevel gear or a differential gear, and the gear box 36a branches the rotational force of the first shaft 37 in three directions. Power is transmitted to the pair of second shafts 35 and 35 and the third shaft. Further, the gear box 36 b transmits the rotational force of the third shaft to the pair of second shafts 35 and 35.

  Further, a worm gear 34 is formed at a portion where the second shaft 35 and the jack portion 30 are in contact with each other so that the rotational force of the second shaft 35 is transmitted to the jack portion 30 by the worm gear 34. It has become. Specifically, in the worm gear 34, a screw gear (worm) 34 b is formed on the second shaft 35, and a helical gear (worm wheel) 34 a is formed on the jack portion 30.

  With such a configuration, when the first shaft 37 is rotated via the operation unit 31, the rotational force is centered on a rotation axis orthogonal to the rotation axis of the first shaft 37 via the gear box 36a. It is converted into the rotational motion described above and transmitted to the pair of second shafts 35, 35 to rotate the pair of second shafts 35, 35. Further, the rotational force of the first shaft 37 is transmitted to the third shaft 38 disposed on the same axis as the first shaft 37 via the gear box 36a, and rotates the third shaft 38.

  When the third shaft 38 is rotated, the rotational force is converted into a rotational motion around a rotational axis orthogonal to the rotational axis of the third shaft 37 via the gear box 36b, and a pair of first shafts 38 is rotated. 2 is transmitted to the two shafts 35 and 35, and the pair of second shafts 35 and 35 are rotated.

  When the second shaft 35 is rotated, the rotational force is perpendicular to the rotation axis of the second shaft 35 via the screw gear (worm) 34b and the helical gear (worm wheel) 34a. The jack portion 30 is transmitted after being converted into a rotational motion around the rotating shaft. When the jack portion 30 rotates, the storage rack 55 is advanced and retracted in the vertical direction by the screw portion 33 screwed into the engagement hole 51.

  In the present modification, the first shaft 37 and the second shaft 35 are disposed in the transformer installation space 40a, and the operation unit 31 protrudes outside the storage rack 55. Also in this modified example, the operation unit 31 may be attached with a driving means 60 that rotates the operation unit 31 such as an electric torque wrench or a hydraulic torque wrench, and is attached with a huddle or the like, for example. Then, the worker may rotate it manually.

  In such a modified example, by rotating the operation unit 31, all the jack units 30 can be rotated at the same time, and the storage rack 55 can be advanced and retracted in the vertical direction. Work time can be shortened.

11-14 ... Distribution line 20 (20a-20c) ... LBS
25 (25a to 25c) ... phase advance capacitor 30 ... jack part 31 ... operation part 32 ... rod member 33 ... screw part 34a ... helical gear (worm wheel)
34b ... Screw gear (worm)
35 ... 2nd shaft 37 ... 1st shaft 38 ... 3rd shaft 40 ... Transformer 40a ... Transformer installation space 41 ... Mounting plate 50 ... Angle material 50a, 50b ... Unit frame 51 ... Engagement hole 52 ... Prop Frame 55 ... Storage rack 60 ... Driving means 61 ... Driving means 62 ... Connecting member 70 ... Seismic resistant member 80 ... Roller part 200 ... Factory 201 ... Worker 210 ... Vehicle 220 ... Apartment house 220a ... Substation equipment room 221a ... Floor 221b ... Wall

Claims (4)

An installation structure of a substation equipment including a transformer,
A frame part constructed by assembling a plurality of unit frames composed of angle members so that they can be disassembled;
Fixing means for fixing the substation equipment other than the transformer to the unit frame;
In a state where the frame portion is assembled, wiring means for connecting devices included in the substation equipment,
A transformer installation space in which the transformer is installed, formed in the assembled frame portion;
A jack portion that is engaged with the angle member located on the bottom surface of the transformer installation space and can be advanced and retracted in the vertical direction;
An operation unit connected to the jack unit and supplying a driving force for advancing and retracting the jack unit;
The operation unit may have a length extending above said transformer from said jack unit,
The jack part and the operation part are formed of an integral rod-shaped member,
The angle member located on the bottom surface of the transformer installation space is provided with an engagement hole penetrating in the vertical direction,
A structure for installing substation equipment , wherein a tip of the rod-shaped member is formed with a screw portion that is screwed into the engagement hole . The installation structure of the substation equipment according to claim 1, wherein a roller portion is detachably attached to a lower surface of the angle member located on a bottom surface of the transformer installation space. A method of installing substation equipment including a transformer,
A disassembly state step of fixing the substation equipment other than the transformer to a unit frame portion constituted by an angle member;
A carrying-in step of carrying the unit frame produced in the disassembling state step into an installation site of the substation equipment;
Assembling the unit frame to construct a frame part, and a frame construction step for connecting devices included in the substation facility,
And the frame construction step includes
In the frame portion, a jack is installed that secures a transformer installation space in which the transformer is installed, and engages a jack portion that is movable in the vertical direction with the angle member located on the bottom surface of the transformer installation space. Steps,
An operation portion having a length extending from the jack portion to above the transformer is connected to the jack portion, and a driving force for moving the jack portion forward and backward is supplied to the jack portion via the operation portion. And a jack-up step for raising the unit frame .
The jack part and the operation part are formed of an integral rod-shaped member,
The angle member located on the bottom surface of the transformer installation space is provided with an engagement hole penetrating in the vertical direction,
A threaded portion that is screwed into the engagement hole is formed at the tip of the rod-shaped member,
In the jack-up step, in a state where the rod-shaped member is screwed into the engagement hole, a driving force is supplied via the operation portion, and the rod-shaped member is protruded downward, A method of installing a substation equipment, wherein the unit frame is raised . A roller part is detachably attached to the lower surface of the angle member located on the bottom surface of the transformer installation space,
In the carrying-in step, the unit frame and the substation equipment are carried into the installation place with the roller part attached to the bottom surface of the unit frame,
The method of installing substation equipment according to claim 3 , wherein, in the jack-up step, the roller part is removed when the unit frame is raised by the jack part.