WO2021059454A1 - Power transformation equipment production method and power transformation equipment - Google Patents

Power transformation equipment production method and power transformation equipment Download PDF

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Publication number
WO2021059454A1
WO2021059454A1 PCT/JP2019/037975 JP2019037975W WO2021059454A1 WO 2021059454 A1 WO2021059454 A1 WO 2021059454A1 JP 2019037975 W JP2019037975 W JP 2019037975W WO 2021059454 A1 WO2021059454 A1 WO 2021059454A1
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Prior art keywords
panel
cable
power
panel chamber
tray
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PCT/JP2019/037975
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French (fr)
Japanese (ja)
Inventor
裕貴 本江
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日揮グローバル株式会社
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Application filed by 日揮グローバル株式会社 filed Critical 日揮グローバル株式会社
Priority to PCT/JP2019/037975 priority Critical patent/WO2021059454A1/en
Priority to CN201980099206.5A priority patent/CN114207970A/en
Publication of WO2021059454A1 publication Critical patent/WO2021059454A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B7/00—Enclosed substations, e.g. compact substations

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  • the present invention relates to a technique for manufacturing a substation equipment that distributes electric power to equipment in a plant that processes a fluid.
  • Plants that process fluid include natural gas plants that liquefy natural gas, separate and recover natural gas liquid, petroleum refining plants that distill and desulfurize crude oil and various intermediate products, petroleum chemical products and intermediate chemicals. There are chemical plants that produce products and polymers. These plants have a structure in which a large number of equipment groups such as static equipment such as tower tanks and heat exchangers, dynamic equipment such as pumps, and piping provided between these static equipment and dynamic equipment are arranged.
  • equipment groups such as static equipment such as tower tanks and heat exchangers, dynamic equipment such as pumps, and piping provided between these static equipment and dynamic equipment are arranged.
  • Plants such as these are equipped with various power consuming devices including the above-mentioned dynamic devices.
  • As the electric power for driving these power consuming devices for example, privately generated electric power by a generator installed in the plant or purchased electric power from the outside is supplied. These electric powers are supplied in a high voltage state, are transformed into a predetermined working voltage by the substation equipment, and then are supplied to each power consuming device.
  • Patent Document 1 an annex building that forms a substation room that houses a substation is provided for a module that houses a group of equipment that constitutes a part of a plant that liquefies natural gas in a frame.
  • the technology to be provided integrally is described.
  • a substation facility includes a transformer that transforms power supplied from the outside and a distribution panel for distributing the power transformed by the transformer to each device, and each is provided by a power cable connected to the distribution panel. Power is supplied to the equipment.
  • Patent Document 1 described above does not describe a technique relating to a method of connecting a substation and each power consuming device in a substation facility.
  • the present invention has been made under such a background, and an object of the present invention is to provide a technique for shortening the construction period required for connecting a substation equipment provided in a plant that processes a fluid and the equipment and reducing the manufacturing cost. is there.
  • the method for manufacturing a substation equipment of the present invention is a method for manufacturing a substation equipment for transforming the supplied electric power with a transformer and distributing the power to a plurality of devices constituting a plant for processing a fluid.
  • the manufacturing method of the substation may have the following features.
  • A) The plurality of cable trays are housed in a tray module and integrally configured with the tray module.
  • the panel chamber is arranged on the upper surface of the bridge provided with the overhanging portion, and
  • the set of overhanging portions is supported from the lower surface side and placed on a jig configured to be horizontally movable along the ground of the installation site, and the bridge and the panel chamber are horizontally moved by the jig.
  • the panel chamber shall be arranged above the cable tray.
  • a cable tray for storing a plurality of power cables is installed at the installation site of the substation equipment, and the plurality of power cables are stored in the cable tray.
  • a panel room in which a distribution panel for distributing electric power to the device is housed is arranged above the cable tray, and the distribution panel and the plurality of electric power cables are connected to each other.
  • FIG. 1 is a plan view showing a plant provided with the substation equipment of the present invention.
  • the plant shown in FIG. 1 is, for example, a liquefied natural gas (LNG) plant (hereinafter, simply referred to as “plant”) that performs a process of liquefying a fluid natural gas.
  • the plant is provided with a large number of devices (process devices) for pretreatment for liquefaction and liquefaction of natural gas after the pretreatment, and a pipe rack 3 attached to these process devices. Since a large number of process equipments are arranged in the plant, the description of the individual process equipments is omitted in FIGS. 1 and 2, and the outer shape of the arrangement area (block 2 described later) of these process equipments is described. is there.
  • the pipe rack 3 has a structure in which a pipe through which a fluid transferred between the process devices of the block 2 flows is held in a frame (not shown).
  • these process devices include power consuming devices that are driven by electric power, such as pumps.
  • the electric power for driving the process equipment which is a power consuming device, is supplied from, for example, a power generation facility (not shown) provided in the plant or an external power generation facility.
  • the electric power supplied from the power generation facility has a voltage higher than the voltage used in the process equipment (for example, 6.9 kV or 400 V) (for example, 69 kV). Therefore, a substation (substation) 1 equipped with a transformer for transforming the high-voltage supply power to the voltage used by the process equipment and distributing the power to each process equipment is provided in the plant.
  • FIG. 1 is an enlarged plan view of the periphery of a part of the block 2 (the range shown by the alternate long and short dash line in FIG. 1) in the plant shown in FIG.
  • the substation equipment 1 and the process equipment in each block 2 are connected by a power cable 15 routed through the arrangement area of the pipe rack 3 and are connected by the substation equipment 1.
  • the transformed power is configured to be distributed to the process equipment in the block 2.
  • FIG. 2 is a cable for supplying electric power from the power generation facility to the plant. Further, several hundred power cables 15 may be provided between the substation equipment 1 and each block 2, and in FIG. 2, a large number of these power cables 15 are schematically shown together. Therefore, the branching of the line showing the power cable 15 in FIG. 2 does not necessarily indicate that the actual power cable 15 is branched from one to a plurality.
  • the substation facility 1 includes a transformer 13 that transforms the supplied electric power, a panel chamber 100 that houses a plurality of distribution panels for supplying the transformed electric power to each process device, and the like. It has. Further, the substation equipment 1 includes a tray module 11 in which a plurality of cable trays 14 for accommodating the plurality of power cables 15 described above are arranged.
  • the panel chamber 100 is provided on the upper surface of a trapezoidal bridge 20 having a plate-shaped body 21 on the upper surface of the frame provided with the legs 22, and has a height at which the tray module 11 described later can be arranged on the lower side of the panel chamber 100. Supported in position.
  • the plate-shaped body 21 is formed in a rectangular shape in a plane shape, and the panel chamber 100 is arranged at the center of the plate-shaped body 21 in the longitudinal direction. Further, when viewed along the longitudinal direction, the regions on one end side and the other end side of the plate-shaped body 21 each constitute an overhanging portion 12 provided so as to project outward from the panel chamber 100.
  • the bridge 20 includes a set of overhanging portions 12 provided so as to project outward from the side surfaces of the panel chamber 100 facing each other.
  • Reference numeral 23 in FIG. 3 is a connecting member that connects the side wall of the panel chamber 100 and the bridge 20 and suspends the end portion of the overhanging portion 12.
  • the connecting member 23 may not be provided.
  • about 10 to 20 transformers 13 are installed on the upper surface of each overhanging portion 12.
  • FIGS. 3, 5, and 6, the description of the cable that electrically connects the transformer 13 and the distribution panel is omitted.
  • a tray module 11 is provided below the panel chamber 100 (more accurately, below the plate-shaped body 21).
  • the tray module 11 is configured as a frame that supports the cable tray 14, and a plurality of cable trays 14 are arranged in the tray module 11.
  • the cable tray 14 is formed in a gutter shape extending along the short side direction of the bridge 20, and when viewed from the long side direction of the bridge 20, the tray module 14 has a plurality of cable trays 14 arranged side by side.
  • a plurality of sets are arranged in a vertical direction in a shelf shape. With this configuration, for example, dozens of cable trays 14 can be arranged in each tray module 14.
  • FIGS. 3 to 8 simplify the description and show only the four cable trays 14.
  • Each cable tray 14 houses a power cable 15 that connects each distribution panel and process equipment.
  • the power cable 15 is housed so as to extend along the length direction of the cable tray 14. Although a plurality of power cables 15 are housed in each cable tray 14, one power cable 15 is shown in the drawings in order to avoid complicated description.
  • the panel chamber 100 is arranged on the support base 200 having the legs 202 on the lower surface, and the panel chamber 100 is arranged below the panel chamber 100 (support base 200).
  • the cable tray 14 was arranged below (below).
  • a jig 16 having wheels is arranged on the lower surface of the substation equipment 101 and placed on the jig 16.
  • the substation equipment 101 may be moved (FIG. 9).
  • the cable tray 14 is temporarily removed from the lower surface of the support base 200 assembled at the shop, and the jig 16 described above is arranged at the position where the cable tray 14 was.
  • the jig 16 for example, there is a trolley with a jack (SPMT: self-propelled modular transporters).
  • the panel chamber 100 and the support base 200 are integrally conveyed to the installation position by the jig 16, and the support base 200 is fixed to the installation site.
  • the jig 16 is retracted from below the support plate 201, and then the cable tray 14 is reattached to the space where the jig 16 is arranged. Further, the work of accommodating the power cable 15 in each cable tray 14 and the adjustment of the cable length of the power cable 15 are performed, and the power cable 15 is connected to the power distribution panel in the panel chamber 100 (FIG. 10).
  • the power cable 15 is routed through the arrangement area of the pipe rack 3.
  • the pipe rack 3 and each block 2 are installed in parallel with the assembly of the substation equipment 101 on the shop side. Therefore, prior to the installation of the substation equipment 101, the power cable 15 is often already installed together with the pipe rack 3, or a part of the power cable 15 is buried in the ground.
  • a part of a large number of power cables 15 that have not been connected to the substation equipment 101 may be temporarily placed on the ground in a coiled state.
  • the temporarily placed power cable 15 may interfere with other construction work.
  • the increase in work directly or indirectly related to the installation of the substation equipment 1 described above may hinder the shortening of the construction period of the plant or cause problems such as an increase in labor costs due to the increase in work. there were. These problems are especially acute in developed countries where the wages of field workers are high or it is difficult to secure a workforce.
  • the substation equipment 1 having the configuration described with reference to FIG. 3 includes a tray module 11 in which a cable tray 14 is arranged, a panel chamber 100 in a bridge 20, and a transformer 13. Is manufactured separately from the main body module 10 in which the above is installed.
  • the tray module 11 is manufactured prior to the main body module 10 and transported to the installation site. Then, as shown in FIG. 4, the tray module 11 is first installed at the installation site of the substation equipment 1.
  • Reference numeral 115 shown in FIG. 4 is a cable trench for burying the power cable 15 in the ground.
  • the main body module 10 After storing the power cable 15 in the cable tray 14 in advance in this way, the main body module 10 is transported to the installation site of the plant.
  • the jig 16 is arranged on the lower surface side of a set of overhanging portions 12 projecting left and right from the lower surface of the panel chamber 100. By supporting the lower surface of the overhanging portion 12 with the jig 16, a space into which the tray module 11 can be inserted is formed below the panel chamber 100.
  • the main body module 10 is moved so that the tray module 11 installed earlier is arranged below the panel chamber 100 (FIG. 5).
  • the jig 16 is removed and retracted from the lower side of the overhanging portion 12, and the bridge 20 is fixed to the installation site.
  • the panel chamber 100 in which the distribution panel for distributing electric power to the process equipment is housed can be arranged above the cable tray 14 (tray module 11).
  • the power distribution panel and the plurality of power cables 15 stored in the tray module 11 in advance are connected (FIG. 6). This completes the installation (manufacturing) of the substation equipment 1.
  • the legs 22 may be configured to be detachable from the main body module 10. Then, the leg portion 22 may be installed together with the tray module 11 on the installation site prior to the main body module 10, and then the portion above the plate-shaped body 21 of the main body module 10 may be installed above the leg portion 22.
  • the transformer 13 and the panel chamber 100 are integrated into a main body module. It can be manufactured as 10 and transported to the installation site. Therefore, it is not necessary to install the transformer 13 at the site. For example, when the transformer 13 is installed on the ground, it is necessary to secure a dedicated area for installing the transformer 13. However, by arranging the transformer 13 on the upper surface of the overhanging portion 12, the transformer 13 is below the transformer 13. Area can be used for other purposes. As an example of use for another purpose, there is an example in which the installation area of the cable trench 115 for routing the power cable 15 in the ground is used.
  • the bridge 20 provided with the support plate 201 with the overhanging portion 12 on the lower surface of the panel chamber 100 it is not essential to provide the bridge 20 provided with the support plate 201 with the overhanging portion 12 on the lower surface of the panel chamber 100.
  • the tray module 11 and the cable tray 14 are installed at the installation site, the power cable 15 is arranged on the cable tray 14, and then the tray module 11 is used by a crane or the like.
  • the panel chamber 100 may be placed on the top. Even in such a configuration, since the cable tray 14 can be installed and the power cable 15 can be stored before the panel chamber 100 is installed, the substation equipment according to the embodiment described with reference to FIGS. 3 to 5. The same effect as in 1 can be obtained.
  • a method of individually installing the cable trays 14 at the installation site May be adopted.
  • a column extending vertically and a column extending horizontally from different height positions of the column are provided so as to correspond to the length direction of the cable tray 14.
  • a plurality of support portions 111 having the plurality of beams provided are arranged at intervals.
  • the cable tray 14 is supported by each beam of the support portion 111, and the power cable 15 is stored in each cable tray 14. Even in such a configuration, since the cable tray 14 can be installed and the power cable 15 can be stored before the panel chamber 10 is installed, the same effect as that of the substation equipment 1 according to each of the above-described embodiments can be obtained. Obtainable.
  • the substation equipment 1 and the manufacturing method thereof according to each embodiment described above are not limited to the case of being applied to an LNG plant that liquefies natural gas.
  • various types of plants such as natural gas plants that separate and recover natural gas liquids, petroleum refining plants that distill and desulfurize crude oil and various intermediate products, and chemical plants that produce petrochemical products, intermediate chemicals, and polymers.
  • the present invention can also be applied to the substation equipment 1 that distributes electric power to various devices provided in these plants.

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Abstract

[Problem] To provide technology to reduce the building time and lower the production cost of power transformation equipment that transforms the voltage of power supplied thereto and supplies the voltage-transformed power to equipment constituting a plant. [Solution] It is possible to carry out the work of cable tray 14 installation, power cable 15 accommodation, and cable length adjustment before installing a panel chamber 100. As a result, work at the installation site after installation of the panel chamber 100 is lessened and the building time is reduced. Placing the power cables 15 in the cable trays 14 before placement of the panel chamber 100 obviates the need to arrange a temporary place for the power cables 15 while the panel chamber 100 is installed. It is thereby possible to prevent an increase in unneeded work such as moving temporarily placed power cables 15 to secure a movement path for the panel chamber 100.

Description

変電設備の製造方法、及び変電設備Substation equipment manufacturing method and substation equipment
　本発明は、流体を処理するプラント内の機器に電力を配電する変電設備を製造する技術に関する。 The present invention relates to a technique for manufacturing a substation equipment that distributes electric power to equipment in a plant that processes a fluid.
　流体の処理を行うプラントには、天然ガスの液化や天然ガス液の分離、回収などを行う天然ガスプラント、原油や各種中間製品の蒸留や脱硫などを行う石油精製プラント、石油化学製品や中間化学品、ポリマーなどの生産を行う化学プラントなどがある。　
　これらのプラントは、塔槽や熱交換器などの静機器、ポンプなどの動機器、これら静機器や動機器の間に設けられる配管などの多数の機器群を配置した構造となっている。 Plants that process fluid include natural gas plants that liquefy natural gas, separate and recover natural gas liquid, petroleum refining plants that distill and desulfurize crude oil and various intermediate products, petroleum chemical products and intermediate chemicals. There are chemical plants that produce products and polymers.
These plants have a structure in which a large number of equipment groups such as static equipment such as tower tanks and heat exchangers, dynamic equipment such as pumps, and piping provided between these static equipment and dynamic equipment are arranged.
　これらのようなプラントには、既述の動機器を含む各種の電力消費機器が設けられている。これらの電力消費機器を駆動するための電力としては、例えばプラント内に設けられた発電機による自家発電電力や、外部からの購入電力が供給される。これらの電力は、高電圧の状態で供給され、変電設備にて所定の使用電圧に変電された後、各電力消費機器に供給される。 Plants such as these are equipped with various power consuming devices including the above-mentioned dynamic devices. As the electric power for driving these power consuming devices, for example, privately generated electric power by a generator installed in the plant or purchased electric power from the outside is supplied. These electric powers are supplied in a high voltage state, are transformed into a predetermined working voltage by the substation equipment, and then are supplied to each power consuming device.
　例えば特許文献１には、架構内に、天然ガスの液化を行うプラントの一部を構成する機器群を収容して構成されるモジュールに対して、変電器を収容した変電室を成す併設建屋を一体に設ける技術が記載されている。一般に変電設備は、外部から供給される電力を変圧する変圧器と、変圧器で変圧された電力を各機器に配電するための配電パネルと、を備え、配電パネルに接続された電力ケーブルにより各機器に電力が供給される。
　ここでプラントを建設するにあたっては、工期の短縮や製造コストの削減が求められており、この点については変電設備においても同様な課題があった。この点、既述の特許文献１には、変電設備におおける変電器と各電力消費機器との接続手法に係る技術の記載はない。 For example, in Patent Document 1, an annex building that forms a substation room that houses a substation is provided for a module that houses a group of equipment that constitutes a part of a plant that liquefies natural gas in a frame. The technology to be provided integrally is described. Generally, a substation facility includes a transformer that transforms power supplied from the outside and a distribution panel for distributing the power transformed by the transformer to each device, and each is provided by a power cable connected to the distribution panel. Power is supplied to the equipment.
When constructing a plant here, it is required to shorten the construction period and reduce the manufacturing cost, and there is a similar problem in the substation equipment in this respect. In this regard, Patent Document 1 described above does not describe a technique relating to a method of connecting a substation and each power consuming device in a substation facility.
国際公開第２０１９／００８７２５号International Publication No. 2019/008725
　本発明は、このような背景の下になされたものであり、流体の処理を行うプラントに設けられる変電設備と機器との接続に要する工期を短期化し、製造コストを下げる技術を提供することにある。 The present invention has been made under such a background, and an object of the present invention is to provide a technique for shortening the construction period required for connecting a substation equipment provided in a plant that processes a fluid and the equipment and reducing the manufacturing cost. is there.
　本発明の変電設備の製造方法は、供給された電力を変圧器にて変圧し、流体を処理するプラントを構成する複数の機器に配電するため変電設備の製造方法であって、
　複数の電力ケーブルを収納するケーブルトレイを、前記変電設備の据付地に据え付ける工程と、
　前記ケーブルトレイに前記複数の電力ケーブルを収納する工程と、
　その後、前記ケーブルトレイの上方に、前記機器に電力を配電するための配電パネルが収容されたパネル室を配置する工程と、
　前記配電パネルと前記複数の電力ケーブルとを接続する工程と、を含むことを特徴とする。 The method for manufacturing a substation equipment of the present invention is a method for manufacturing a substation equipment for transforming the supplied electric power with a transformer and distributing the power to a plurality of devices constituting a plant for processing a fluid.
The process of installing a cable tray that stores multiple power cables at the installation site of the substation equipment, and
The process of storing the plurality of power cables in the cable tray, and
After that, a step of arranging a panel room in which a distribution panel for distributing electric power to the device is arranged above the cable tray, and a step of arranging the panel chamber.
It is characterized by including a step of connecting the power distribution panel and the plurality of power cables.
　また変電設の製造方法は、以下の特徴を備えていてもよい。
（ａ）前記複数のケーブルトレイは、トレイモジュールに収納され、トレイモジュールと一体的に構成されたこと。
（ｂ）前記パネル室を配置する工程では、
　前記パネル室の下方側に前記ケーブルトレイを配置できる高さ位置に、当該パネル室を支持すると共に、前記パネル室の互いに対向する側面よりも外方に夫々張り出すように設けられた一組の張り出し部を備えたブリッジの上面に、前記パネル室が配置されていることと、
　前記一組の張り出し部を下面側から支持すると共に、前記据付地の地面に沿って水平移動自在に構成された治具に載置し、当該治具により前記ブリッジ及びパネル室を水平移動させて、前記パネル室を前記ケーブルトレイの上方に配置すること。
（ｃ）（ｂ）において前記変圧器は、前記張り出し部の上面に設置されていること。 Further, the manufacturing method of the substation may have the following features.
(A) The plurality of cable trays are housed in a tray module and integrally configured with the tray module.
(B) In the step of arranging the panel chamber,
A set of panels provided so as to support the panel chamber at a height position where the cable tray can be arranged on the lower side of the panel chamber and to project outward from the side surfaces of the panel chamber facing each other. The panel chamber is arranged on the upper surface of the bridge provided with the overhanging portion, and
The set of overhanging portions is supported from the lower surface side and placed on a jig configured to be horizontally movable along the ground of the installation site, and the bridge and the panel chamber are horizontally moved by the jig. , The panel chamber shall be arranged above the cable tray.
(C) In (b), the transformer is installed on the upper surface of the overhanging portion.
　本発明は、変電設備の製造するにあたって、まず複数の電力ケーブルを収納するケーブルトレイを、前記変電設備の据付地に据え付け、ケーブルトレイに前記複数の電力ケーブルを収納する。その後ケーブルトレイの上方に、前記機器に電力を配電するための配電パネルが収容されたパネル室を配置し、配電パネルと前記複数の電力ケーブルとを接続している。この構成により、パネル室の設置後の現場での作業を少なくすることができる。 In the present invention, in manufacturing a substation equipment, first, a cable tray for storing a plurality of power cables is installed at the installation site of the substation equipment, and the plurality of power cables are stored in the cable tray. After that, a panel room in which a distribution panel for distributing electric power to the device is housed is arranged above the cable tray, and the distribution panel and the plurality of electric power cables are connected to each other. With this configuration, it is possible to reduce the work on site after the installation of the panel room.
プラントの全体を示す平面図である。It is a top view which shows the whole of a plant. プラントの一部を示す平面図である。It is a top view which shows a part of a plant. 本発明に係る変電設備の斜視図である。It is a perspective view of the substation equipment which concerns on this invention. 変電設備の製造工程を示す第１の説明図である。It is 1st explanatory drawing which shows the manufacturing process of a substation equipment. 変電設備の製造工程を示す第２の説明図である。It is a 2nd explanatory diagram which shows the manufacturing process of a substation equipment. 変電設備の製造工程を示す第３の説明図である。It is a 3rd explanatory diagram which shows the manufacturing process of a substation equipment. 他の実施の形態に係る変電設備の製造工程を示す説明図である。It is explanatory drawing which shows the manufacturing process of the substation equipment which concerns on other embodiment. ケーブルトレイの設置方法の他の例を示す斜視図である。It is a perspective view which shows another example of the installation method of a cable tray. 従来の変電設備の製造工程を示す第１の説明図である。It is 1st explanatory drawing which shows the manufacturing process of the conventional substation equipment. 従来の変電設備の製造工程を示す第２の説明図である。It is a 2nd explanatory drawing which shows the manufacturing process of the conventional substation equipment.
　図１は、本発明の変電設備が設けられたプラントを示す平面図である。図１に示すプラントは、例えば流体である天然ガスを液化する処理を行う液化天然ガス（ＬＮＧ）プラント（以下、単に「プラント」と呼ぶ）である。プラントは、液化前処理や、前処理後の天然ガスの液化を行う多数の機器（プロセス機器）、これらのプロセス機器に併設されるパイプラック３が設けられている。　
　プラントには、多数のプロセス機器が配置されるので、図１、図２においては個別のプロセス機器の記載を省略し、これらプロセス機器の配置領域（後述のブロック２）の外郭形状を記載してある。また、パイプラック３には、不図示の架構に、ブロック２のプロセス機器間で授受される流体が流れる配管を保持した構成となっている。 FIG. 1 is a plan view showing a plant provided with the substation equipment of the present invention. The plant shown in FIG. 1 is, for example, a liquefied natural gas (LNG) plant (hereinafter, simply referred to as “plant”) that performs a process of liquefying a fluid natural gas. The plant is provided with a large number of devices (process devices) for pretreatment for liquefaction and liquefaction of natural gas after the pretreatment, and a pipe rack 3 attached to these process devices.
Since a large number of process equipments are arranged in the plant, the description of the individual process equipments is omitted in FIGS. 1 and 2, and the outer shape of the arrangement area (block 2 described later) of these process equipments is described. is there. Further, the pipe rack 3 has a structure in which a pipe through which a fluid transferred between the process devices of the block 2 flows is held in a frame (not shown).
　また、これらのプロセス機器には、ポンプなどのように、電力用いて駆動する電力消費機器が含まれている。電力消費機器であるプロセス機器を駆動させるための電力は、例えばプラント内に設けられた不図示の発電設備や、外部の発電設備から供給される。発電設備から供給される電力は、プロセス機器にて使用する電圧（例えば６．９ｋＶや４００Ｖ）よりも電圧が高い（例えば６９ｋＶ）。そのためプラント内には、高圧の供給電力をプロセス機器にて使用する電圧に変圧して各プロセス機器に配電するための変圧器を備えたサブステーション（変電設備）１が設けられる。 In addition, these process devices include power consuming devices that are driven by electric power, such as pumps. The electric power for driving the process equipment, which is a power consuming device, is supplied from, for example, a power generation facility (not shown) provided in the plant or an external power generation facility. The electric power supplied from the power generation facility has a voltage higher than the voltage used in the process equipment (for example, 6.9 kV or 400 V) (for example, 69 kV). Therefore, a substation (substation) 1 equipped with a transformer for transforming the high-voltage supply power to the voltage used by the process equipment and distributing the power to each process equipment is provided in the plant.
　図１に示すように、本例のプラントは、当該プラント内に多数設けられるプロセス機器を複数のブロック２に区画して配置して構成され、変電設備１は、１つまたは複数のブロック２に対して１つ設けられている。図２は、図１に示すプラントのうち、一部のブロック２（図１中に一点鎖線で示す範囲）の周辺を拡大した平面図である。図２中に模式的に示すように、変電設備１と各ブロック２内のプロセス機器とは、パイプラック３の配置領域を介して引き回される電力ケーブル１５により接続され、変電設備１にて、変圧された電力が当該ブロック２内のプロセス機器に配電されるように構成されている。なお図２中の符号９は、発電設備からプラントに電力を供給するケーブルである。また、変電設備１と各ブロック２との間には、数百本の電力ケーブル１５が設けられる場合があるが、図２においてはこれら多数の電力ケーブル１５をまとめて模式的に示してある。従って、図２中の電力ケーブル１５を示す線の分岐は、必ずしも実際の電力ケーブル１５が一本から複数に分岐していることを示すものではない。 As shown in FIG. 1, the plant of this example is configured by partitioning and arranging a large number of process devices provided in the plant in a plurality of blocks 2, and the substation facility 1 is arranged in one or a plurality of blocks 2. On the other hand, one is provided. FIG. 2 is an enlarged plan view of the periphery of a part of the block 2 (the range shown by the alternate long and short dash line in FIG. 1) in the plant shown in FIG. As schematically shown in FIG. 2, the substation equipment 1 and the process equipment in each block 2 are connected by a power cable 15 routed through the arrangement area of the pipe rack 3 and are connected by the substation equipment 1. , The transformed power is configured to be distributed to the process equipment in the block 2. Reference numeral 9 in FIG. 2 is a cable for supplying electric power from the power generation facility to the plant. Further, several hundred power cables 15 may be provided between the substation equipment 1 and each block 2, and in FIG. 2, a large number of these power cables 15 are schematically shown together. Therefore, the branching of the line showing the power cable 15 in FIG. 2 does not necessarily indicate that the actual power cable 15 is branched from one to a plurality.
　図３に示すように、変電設備１は、供給される電力を変圧する変圧器１３と、変圧された電力を各プロセス機器に供給するための複数の配電パネルが収容されたパネル室１００と、を備えている。また変電設備１は、既述の複数の電力ケーブル１５を収納する複数のケーブルトレイ１４が配置されたトレイモジュール１１を備えている。 As shown in FIG. 3, the substation facility 1 includes a transformer 13 that transforms the supplied electric power, a panel chamber 100 that houses a plurality of distribution panels for supplying the transformed electric power to each process device, and the like. It has. Further, the substation equipment 1 includes a tray module 11 in which a plurality of cable trays 14 for accommodating the plurality of power cables 15 described above are arranged.
　パネル室１００は、脚部２２を備えた架構の上面に板状体２１を設けた台状のブリッジ２０の上面に設けられ、パネル室１００の下方側に後述するトレイモジュール１１を配置できる高さ位置に支持されている。板状体２１は平面形状矩形に構成され、パネル室１００は、板状体２１の長手方向中央に配置されている。また前記長手方向に沿って見たとき、板状体２１における一端側及び他端側の領域は、夫々パネル室１００から外側に張り出すように設けられた張り出し部１２を構成している。即ちブリッジ２０は、パネル室１００の互いに対向する側面よりも外方に夫々張り出すように設けられた一組の張り出し部１２を備えている。なお図３中の符号２３は、パネル室１００の側壁とブリッジ２０とを接続して張り出し部１２の端部を吊る接続部材である。接続部材２３は設けられていなくてもよい。そして各張り出し部１２の上面には、例えば１０台～２０台程度の変圧器１３が設置されている。図３、図５、及び図６では、変圧器１３と配電パネルを電気的に接続するケーブルの記載を省略している。 The panel chamber 100 is provided on the upper surface of a trapezoidal bridge 20 having a plate-shaped body 21 on the upper surface of the frame provided with the legs 22, and has a height at which the tray module 11 described later can be arranged on the lower side of the panel chamber 100. Supported in position. The plate-shaped body 21 is formed in a rectangular shape in a plane shape, and the panel chamber 100 is arranged at the center of the plate-shaped body 21 in the longitudinal direction. Further, when viewed along the longitudinal direction, the regions on one end side and the other end side of the plate-shaped body 21 each constitute an overhanging portion 12 provided so as to project outward from the panel chamber 100. That is, the bridge 20 includes a set of overhanging portions 12 provided so as to project outward from the side surfaces of the panel chamber 100 facing each other. Reference numeral 23 in FIG. 3 is a connecting member that connects the side wall of the panel chamber 100 and the bridge 20 and suspends the end portion of the overhanging portion 12. The connecting member 23 may not be provided. For example, about 10 to 20 transformers 13 are installed on the upper surface of each overhanging portion 12. In FIGS. 3, 5, and 6, the description of the cable that electrically connects the transformer 13 and the distribution panel is omitted.
　パネル室１００の下方（より正確には板状体２１の下方）には、トレイモジュール１１が設けられる。トレイモジュール１１は、ケーブルトレイ１４を支持する架構として構成され、当該トレイモジュール１１には複数のケーブルトレイ１４が配置されている。ケーブルトレイ１４は、ブリッジ２０の短辺方向に沿って伸びる角樋状に構成され、ブリッジ２０の長辺方向から見たときに、トレイモジュール１４には、左右に並んだ複数のケーブルトレイ１４の組が、上下方向に複数組棚状に配置された構成となっている。この構成により、各トレイモジュール１４には、例えば数十本のケーブルトレイ１４を配置することができる。なお図面が煩雑になることを避けるため図３～図８では、記載を簡略化して、４本のケーブルトレイ１４のみを記載してある。 A tray module 11 is provided below the panel chamber 100 (more accurately, below the plate-shaped body 21). The tray module 11 is configured as a frame that supports the cable tray 14, and a plurality of cable trays 14 are arranged in the tray module 11. The cable tray 14 is formed in a gutter shape extending along the short side direction of the bridge 20, and when viewed from the long side direction of the bridge 20, the tray module 14 has a plurality of cable trays 14 arranged side by side. A plurality of sets are arranged in a vertical direction in a shelf shape. With this configuration, for example, dozens of cable trays 14 can be arranged in each tray module 14. In order to avoid complicating the drawings, FIGS. 3 to 8 simplify the description and show only the four cable trays 14.
　各ケーブルトレイ１４には、各配電パネルとプロセス機器とを接続する電力ケーブル１５が収納される。電力ケーブル１５は、ケーブルトレイ１４の長さ方向に沿って伸びるように収納されている。各ケーブルトレイ１４には、複数本の電力ケーブル１５が収納されているが、記載が煩雑になることを避けるため図面では１本の電力ケーブル１５を示している。 Each cable tray 14 houses a power cable 15 that connects each distribution panel and process equipment. The power cable 15 is housed so as to extend along the length direction of the cable tray 14. Although a plurality of power cables 15 are housed in each cable tray 14, one power cable 15 is shown in the drawings in order to avoid complicated description.
　ここで図１０に示すように、従来、プラントに設けられる変電設備１０１は、下面に脚部２０２を備えた支持台２００の上にパネル室１００を配置し、パネル室１００の下方（支持台２００の下方）にケーブルトレイ１４が配置される構成であった。
　このような変電設備１０１をプラントの敷地に据え付ける手法について説明すると、例えばパネル室１００と、支持台２００と、ケーブルトレイ１４が、ショップと呼ばれる工場で一体的に製造される。その後、製造された変電設備１０１は据付地へと搬送される。 Here, as shown in FIG. 10, in the substation equipment 101 conventionally provided in the plant, the panel chamber 100 is arranged on the support base 200 having the legs 202 on the lower surface, and the panel chamber 100 is arranged below the panel chamber 100 (support base 200). The cable tray 14 was arranged below (below).
Explaining the method of installing such a substation facility 101 on the site of a plant, for example, a panel room 100, a support stand 200, and a cable tray 14 are integrally manufactured in a factory called a shop. After that, the manufactured substation equipment 101 is transported to the installation site.
　一方、変電設備１０１を据付地に搬送し、さらに据付地にて地上搬送するにあたっては、変電設備１０１の下面に、車輪を備えた治具１６を配置し、当該治具１６に乗せた状態で変電設備１０１を移動させる場合があった（図９）。この場合には、ショップにて組み立てられた支持台２００の下面から、ケーブルトレイ１４が一旦、取り外され、ケーブルトレイ１４のあった位置に既述の治具１６が配置される。治具１６として、例えばジャッキ付きの台車（ＳＰＭＴ：self-propelled modular transporters）がある。 On the other hand, when the substation equipment 101 is transported to the installation site and then transported to the ground at the installation site, a jig 16 having wheels is arranged on the lower surface of the substation equipment 101 and placed on the jig 16. The substation equipment 101 may be moved (FIG. 9). In this case, the cable tray 14 is temporarily removed from the lower surface of the support base 200 assembled at the shop, and the jig 16 described above is arranged at the position where the cable tray 14 was. As the jig 16, for example, there is a trolley with a jack (SPMT: self-propelled modular transporters).
　そして治具１６により、パネル室１００と支持台２００とが一体として据え付け位置まで搬送され、支持台２００が据付地に固定される。その後、支持板２０１の下方から治具１６を退避させた後、治具１６が配置されていた空間にケーブルトレイ１４を再び取り付ける作業を行う。さらには、各ケーブルトレイ１４に電力ケーブル１５を収納する作業、電力ケーブル１５のケーブル長の調整が行われ、電力ケーブル１５がパネル室１００内の配電パネルに接続される（図１０）。 Then, the panel chamber 100 and the support base 200 are integrally conveyed to the installation position by the jig 16, and the support base 200 is fixed to the installation site. After that, the jig 16 is retracted from below the support plate 201, and then the cable tray 14 is reattached to the space where the jig 16 is arranged. Further, the work of accommodating the power cable 15 in each cable tray 14 and the adjustment of the cable length of the power cable 15 are performed, and the power cable 15 is connected to the power distribution panel in the panel chamber 100 (FIG. 10).
　このように治具１６を用いて変電設備１０１の地上搬送を行う構成では、パネル室１００設置後にケーブルトレイ１４の設置と、電力ケーブル１５の収納と、を行う必要があり据付地での作業が多くなる問題がある。 In the configuration in which the substation equipment 101 is transported to the ground using the jig 16 in this way, it is necessary to install the cable tray 14 and store the power cable 15 after installing the panel room 100, and the work at the installation site is required. There are many problems.
　さらにまた、既述のように例えば電力ケーブル１５は、パイプラック３の配置領域を介して引き回される。一方、パイプラック３や各ブロック２は、ショップ側における変電設備１０１の組み立てと並行して設置が進められる。このため、変電設備１０１の据え付けに先行して、電力ケーブル１５は、パイプラック３と共に既に設置されていたり、その一部が地中に埋設された状態となっていたりすることも多い。 Furthermore, as described above, for example, the power cable 15 is routed through the arrangement area of the pipe rack 3. On the other hand, the pipe rack 3 and each block 2 are installed in parallel with the assembly of the substation equipment 101 on the shop side. Therefore, prior to the installation of the substation equipment 101, the power cable 15 is often already installed together with the pipe rack 3, or a part of the power cable 15 is buried in the ground.
　このような場合に、変電設備１０１への接続が完了していない多数の電力ケーブル１５の一部分が、コイル状に巻かれた状態で地上に仮置きされていることがある。しかしながら、既述のようにその周囲においては、プラントの建設作業が行われているため、仮置きされた電力ケーブル１５が他の建設作業の妨げとなる場合もある。この場合には、仮置きされた多数の電力ケーブル１５を移動させる必要が生じ、プラントの建設に直接は寄与しない、不要な作業が発生してしまう場合があった。　
　以上に説明した変電設備１の設置に直接的、間接的に係る作業の増加は、プラントの建設工期の短縮を妨げたり、作業の増加に伴う人件費の増加などの問題を引き起こしたりする場合もあった。これらの問題は、現場労働者の賃金が高い、もしくは労働力を確保するのが難しい先進国で特に深刻になる。 In such a case, a part of a large number of power cables 15 that have not been connected to the substation equipment 101 may be temporarily placed on the ground in a coiled state. However, as described above, since the construction work of the plant is carried out in the surrounding area, the temporarily placed power cable 15 may interfere with other construction work. In this case, it becomes necessary to move a large number of temporarily placed power cables 15, which may cause unnecessary work that does not directly contribute to the construction of the plant.
The increase in work directly or indirectly related to the installation of the substation equipment 1 described above may hinder the shortening of the construction period of the plant or cause problems such as an increase in labor costs due to the increase in work. there were. These problems are especially acute in developed countries where the wages of field workers are high or it is difficult to secure a workforce.
　これらの問題点に対し、図３を用いて説明した構成を備える本実施の形態に係る変電設備１は、ケーブルトレイ１４を配置したトレイモジュール１１と、ブリッジ２０にパネル室１００、及び変圧器１３を設置した本体モジュール１０とが個別に製造される。　
　例えばトレイモジュール１１は、本体モジュール１０に先行して製造されて、据付地に搬送される。そして図４に示すように、まずトレイモジュール１１が、変電設備１の据付地に据え付けられる。先行してトレイモジュール１１を据え付けることにより、ケーブルトレイ１４に電力ケーブル１５を収納し、ケーブル長を調節する作業を実施することができる。なお図４中に示す符号１１５は、地中に電力ケーブル１５を埋置するためのケーブルトレンチである。 In response to these problems, the substation equipment 1 according to the present embodiment having the configuration described with reference to FIG. 3 includes a tray module 11 in which a cable tray 14 is arranged, a panel chamber 100 in a bridge 20, and a transformer 13. Is manufactured separately from the main body module 10 in which the above is installed.
For example, the tray module 11 is manufactured prior to the main body module 10 and transported to the installation site. Then, as shown in FIG. 4, the tray module 11 is first installed at the installation site of the substation equipment 1. By installing the tray module 11 in advance, it is possible to store the power cable 15 in the cable tray 14 and perform the work of adjusting the cable length. Reference numeral 115 shown in FIG. 4 is a cable trench for burying the power cable 15 in the ground.
　こうしてケーブルトレイ１４への電力ケーブル１５の収納を予め済ませた後、本体モジュール１０がプラントの据付地に搬送される。本例の本体モジュール１０においては、パネル室１００下面から左右に張り出した、一組の張り出し部１２の下面側に治具１６が配置される。張り出し部１２の下面を治具１６によって支持することにより、パネル室１００の下方には、トレイモジュール１１を挿入することが可能な空間が形成される。 After storing the power cable 15 in the cable tray 14 in advance in this way, the main body module 10 is transported to the installation site of the plant. In the main body module 10 of this example, the jig 16 is arranged on the lower surface side of a set of overhanging portions 12 projecting left and right from the lower surface of the panel chamber 100. By supporting the lower surface of the overhanging portion 12 with the jig 16, a space into which the tray module 11 can be inserted is formed below the panel chamber 100.
　そして先に据え付けられたトレイモジュール１１がパネル室１００の下方に配置されるように本体モジュール１０を移動させる（図５）。その後、治具１６を取り外して張り出し部１２の下方側から退避させ、ブリッジ２０を据付地に固定する。これにより前記ケーブルトレイ１４（トレイモジュール１１）の上方に、プロセス機器に電力を配電するための配電パネルが収容されたパネル室１００を配置することができる。さらにその後、配電パネルと、予めトレイモジュール１１に収納しておいた複数の電力ケーブル１５とを接続する（図６）。これにより変電設備１の据付（製造）が完了する。 Then, the main body module 10 is moved so that the tray module 11 installed earlier is arranged below the panel chamber 100 (FIG. 5). After that, the jig 16 is removed and retracted from the lower side of the overhanging portion 12, and the bridge 20 is fixed to the installation site. As a result, the panel chamber 100 in which the distribution panel for distributing electric power to the process equipment is housed can be arranged above the cable tray 14 (tray module 11). After that, the power distribution panel and the plurality of power cables 15 stored in the tray module 11 in advance are connected (FIG. 6). This completes the installation (manufacturing) of the substation equipment 1.
　上述の構成によりパネル室１００を設置する前に、ケーブルトレイ１４の設置及び電力ケーブル１５の収納、ケーブル長の調節の作業を行っておくことができる。これによりパネル室１００設置後の据付地での作業が少なくなり工期を短くすることができる。またパネル室１００を配置する前に、電力ケーブル１５をケーブルトレイ１４に配置しておくことで、パネル室１００が設置されるまでの期間の電力ケーブル１５の仮置きが必要なくなる。そのため、プラントの建設作業の進行に伴う仮置きされた電力ケーブル１５の移動のような不要な作業の発生を防ぐことができる。なお脚部２２を本体モジュール１０から着脱できるように構成してもよい。そして脚部２２をトレイモジュール１１と共に本体モジュール１０に先行して据付地に据え付け、その後本体モジュール１０の板状体２１から上の部位を脚部２２の上方に設置する構成でも良い。 With the above configuration, before installing the panel chamber 100, it is possible to install the cable tray 14, store the power cable 15, and adjust the cable length. As a result, the work at the installation site after the installation of the panel room 100 is reduced, and the construction period can be shortened. Further, by arranging the power cable 15 on the cable tray 14 before arranging the panel chamber 100, it is not necessary to temporarily place the power cable 15 until the panel chamber 100 is installed. Therefore, it is possible to prevent unnecessary work such as movement of the temporarily placed power cable 15 as the construction work of the plant progresses. The legs 22 may be configured to be detachable from the main body module 10. Then, the leg portion 22 may be installed together with the tray module 11 on the installation site prior to the main body module 10, and then the portion above the plate-shaped body 21 of the main body module 10 may be installed above the leg portion 22.
　さらに図６に示すように、パネル室１００から外側に張り出すように設けられた張り出し部１２上に変圧器１３を配置する構成によれば、変圧器１３とパネル室１００とを一体の本体モジュール１０として製造し、据付地に搬送できる。このため、現場にて変圧器１３を設置する作業を行う必要がない。例えば変圧器１３を地面に設置する場合には、変圧器１３を設置する専用の領域を確保する必要があるが、張り出し部１２の上面に変圧器１３を配置することで、変圧器１３の下方の領域を他の目的に使用することができる。他の目的の使用例としては、地中に電力ケーブル１５を引き回すためのケーブルトレンチ１１５の設置領域とする例が挙げられる。 Further, as shown in FIG. 6, according to the configuration in which the transformer 13 is arranged on the overhanging portion 12 provided so as to project outward from the panel chamber 100, the transformer 13 and the panel chamber 100 are integrated into a main body module. It can be manufactured as 10 and transported to the installation site. Therefore, it is not necessary to install the transformer 13 at the site. For example, when the transformer 13 is installed on the ground, it is necessary to secure a dedicated area for installing the transformer 13. However, by arranging the transformer 13 on the upper surface of the overhanging portion 12, the transformer 13 is below the transformer 13. Area can be used for other purposes. As an example of use for another purpose, there is an example in which the installation area of the cable trench 115 for routing the power cable 15 in the ground is used.
　また、パネル室１００の下面に張り出し部１２付きの支持板２０１を備えたブリッジ２０を設けることは必須ではない。図７に示した他の実施の形態に係る変電設備のように、据付地にトレイモジュール１１とケーブルトレイ１４を設置し、ケーブルトレイ１４に電力ケーブル１５を配置した後、クレーンなどによりトレイモジュール１１の上にパネル室１００を載置してもよい。このような構成においてもパネル室１００を設置する前に、ケーブルトレイ１４の設置及び電力ケーブル１５の収納を行うことができるため、図３～図５を用いて説明した実施の形態に係る変電設備１と同様の効果を得ることができる。 Further, it is not essential to provide the bridge 20 provided with the support plate 201 with the overhanging portion 12 on the lower surface of the panel chamber 100. Like the substation equipment according to the other embodiment shown in FIG. 7, the tray module 11 and the cable tray 14 are installed at the installation site, the power cable 15 is arranged on the cable tray 14, and then the tray module 11 is used by a crane or the like. The panel chamber 100 may be placed on the top. Even in such a configuration, since the cable tray 14 can be installed and the power cable 15 can be stored before the panel chamber 100 is installed, the substation equipment according to the embodiment described with reference to FIGS. 3 to 5. The same effect as in 1 can be obtained.
　さらに他の例として、複数のケーブルトレイ１４とこれらを支持する架構とを一体的に構成したトレイモジュール１１にケーブルトレイ１４を設ける手法に替えて、据付地に個別にケーブルトレイ１４を設置する手法を採用しても良い。例えば図８に示すように、パネル室１０を据え付ける前に、ケーブルトレイ１４の長さ方向に対応させて、鉛直に伸びる支柱と、当該支柱の異なる高さ位置から水平方向に伸び出すように設けられた複数の梁とを備えた複数の支持部１１１を間隔を置いて配置する。そしてこれらの支持部１１１の各梁によりケーブルトレイ１４を支持し、さらに各ケーブルトレイ１４には電力ケーブル１５を収納しておく。このような構成においても、パネル室１０の設置前に、ケーブルトレイ１４の設置及び電力ケーブル１５の収納を行うことができるため、先に説明した各実施形態に係る変電設備１と同様の効果を得ることができる。 As yet another example, instead of the method of providing the cable tray 14 on the tray module 11 in which a plurality of cable trays 14 and the frame supporting them are integrally configured, a method of individually installing the cable trays 14 at the installation site. May be adopted. For example, as shown in FIG. 8, before installing the panel chamber 10, a column extending vertically and a column extending horizontally from different height positions of the column are provided so as to correspond to the length direction of the cable tray 14. A plurality of support portions 111 having the plurality of beams provided are arranged at intervals. The cable tray 14 is supported by each beam of the support portion 111, and the power cable 15 is stored in each cable tray 14. Even in such a configuration, since the cable tray 14 can be installed and the power cable 15 can be stored before the panel chamber 10 is installed, the same effect as that of the substation equipment 1 according to each of the above-described embodiments can be obtained. Obtainable.
　以上に説明した各実施の形態に係る変電設備１、及びその製造方法は、天然ガスの液化を行うＬＮＧプラントに適用する場合に限定されない。例えば天然ガス液の分離、回収などを行う天然ガスプラント、原油や各種中間製品の蒸留や脱硫などを行う石油精製プラント、石油化学製品や中間化学品、ポリマーなどの生産を行う化学プラントなどの各種のプラントにおいて、これらのプラントに設けられる各種機器に電力を配電する変電設備１に対しても、本発明は適用することができる。 The substation equipment 1 and the manufacturing method thereof according to each embodiment described above are not limited to the case of being applied to an LNG plant that liquefies natural gas. For example, various types of plants such as natural gas plants that separate and recover natural gas liquids, petroleum refining plants that distill and desulfurize crude oil and various intermediate products, and chemical plants that produce petrochemical products, intermediate chemicals, and polymers. The present invention can also be applied to the substation equipment 1 that distributes electric power to various devices provided in these plants.
１　　　　　　　　　　変電設備
１３　　　　　　　　　変圧器
１５　　　　　　　　　電力ケーブル
１４　　　　　　　　　ケーブルトレイ
１００　　　　　　　　パネル室

  1 Substation equipment 13 Transformer 15 Power cable 14 Cable tray 100 Panel room

Claims (7)

  1. 　供給された電力を変圧器にて変圧し、流体を処理するプラントを構成する複数の機器に配電するため変電設備の製造方法であって、
    　複数の電力ケーブルを収納する複数のケーブルトレイを、前記変電設備の据付地に据え付ける工程と、
    　前記ケーブルトレイに前記複数の電力ケーブルを収納する工程と、
    　その後、前記ケーブルトレイの上方に、前記機器に電力を配電するための配電パネルが収容されたパネル室を配置する工程と、
    　前記配電パネルと前記複数の電力ケーブルとを接続する工程と、を含むことを特徴とする変電設備の製造方法。     It is a manufacturing method of substation equipment to transform the supplied electric power with a transformer and distribute it to multiple devices that make up a plant that processes fluid.
    The process of installing a plurality of cable trays for storing a plurality of power cables at the installation site of the substation equipment, and
    The process of storing the plurality of power cables in the cable tray, and
    After that, a step of arranging a panel room in which a distribution panel for distributing electric power to the device is arranged above the cable tray, and a step of arranging the panel chamber.
    A method for manufacturing a substation equipment, which comprises a step of connecting the power distribution panel and the plurality of power cables.
  2. 　前記複数のケーブルトレイは、トレイモジュールに収納され、トレイモジュールと一体的に構成されたことを特徴とする請求項１に記載の変電設備の製造方法。 The method for manufacturing a substation equipment according to claim 1, wherein the plurality of cable trays are housed in a tray module and integrally configured with the tray module.
  3. 　前記パネル室を配置する工程では、
    　前記パネル室の下方側に前記ケーブルトレイを配置できる高さ位置に、当該パネル室を支持すると共に、前記パネル室の互いに対向する側面よりも外方に夫々張り出すように設けられた一組の張り出し部を備えたブリッジの上面に、前記パネル室が配置されていることと、
    　前記一組の張り出し部を下面側から支持すると共に、前記据付地の地面に沿って水平移動自在に構成された治具に載置し、当該治具により前記ブリッジ及びパネル室を水平移動させて、前記パネル室を前記ケーブルトレイの上方に配置することと、を特徴とする請求項１に記載の変電設備の製造方法。     In the process of arranging the panel chamber,
    A set of panels provided so as to support the panel chamber at a height position where the cable tray can be arranged on the lower side of the panel chamber and to project outward from the side surfaces of the panel chamber facing each other. The panel chamber is arranged on the upper surface of the bridge provided with the overhanging portion, and
    The set of overhanging portions is supported from the lower surface side, and is placed on a jig configured to be horizontally movable along the ground of the installation site, and the bridge and the panel chamber are horizontally moved by the jig. The method for manufacturing a substation facility according to claim 1, wherein the panel chamber is arranged above the cable tray.
  4. 　前記変圧器は、前記張り出し部の上面に設置されていることを特徴とする請求項３に記載の変電設備の製造方法。 The method for manufacturing a substation equipment according to claim 3, wherein the transformer is installed on the upper surface of the overhanging portion.
  5. 　流体を処理するプラントに設けられる変電設備において、
    　供給された電力を変圧する変圧器と、
    　前記変圧器により変圧された電力を、前記プラントを構成する複数の機器に配電するため配電パネルが収納されたパネル室と、
    　前記機器と前記配電パネルとを電気的に接続するための複数の電力ケーブルを収納し、前記パネル室の下方に配置される複数のケーブルトレイと、
    　前記パネル室の下方側に前記ケーブルトレイを配置できる高さ位置に当該パネル室を支持すると共に、前記パネル室の互いに対向する側面よりも外方に夫々張り出すように設けられた一組の張り出し部を備えたブリッジと、を備え、
    　前記一組の張り出し部は、前記変電設備の据付地に設置されたケーブルトレイの上方に配置するときに、前記パネル室及びブリッジを前記据付地の地面に沿って水平移動させるための治具の上に載置されるものであることを特徴とする変電設備。     In substation equipment installed in plants that process fluids
    A transformer that transforms the supplied power,
    A panel room in which a distribution panel is housed to distribute the electric power transformed by the transformer to a plurality of devices constituting the plant, and
    A plurality of cable trays for accommodating a plurality of power cables for electrically connecting the device and the power distribution panel and arranged below the panel room, and a plurality of cable trays.
    A set of overhangs provided so as to support the panel chamber at a height position where the cable tray can be arranged on the lower side of the panel chamber and to project outward from the side surfaces of the panel chamber facing each other. With a bridge with a part,
    The set of overhangs is a jig for horizontally moving the panel chamber and the bridge along the ground of the installation site when the panel chamber and the bridge are arranged above the cable tray installed at the installation site of the substation equipment. A substation facility characterized by being placed on top.
  6. 　前記複数のケーブルトレイは、トレイモジュールに収納され、トレイモジュールと一体的に構成されたことを特徴とする請求項５に記載の変電設備。 The substation facility according to claim 5, wherein the plurality of cable trays are housed in a tray module and integrally configured with the tray module.
  7. 　前記変圧器は、前記張り出し部の上面に設けられたことを特徴とする請求項５に記載の変電設備。

          The substation equipment according to claim 5, wherein the transformer is provided on the upper surface of the overhanging portion.
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