WO2018110845A1 - Procédé de construction pour une distribution d'énergie sans coupure sans points de connexion intermédiaires de câble de dérivation à l'aide d'un appareillage de commutation à branchements multiples à phase unique pouvant être ouvert individuellement destiné à la construction - Google Patents

Procédé de construction pour une distribution d'énergie sans coupure sans points de connexion intermédiaires de câble de dérivation à l'aide d'un appareillage de commutation à branchements multiples à phase unique pouvant être ouvert individuellement destiné à la construction Download PDF

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Publication number
WO2018110845A1
WO2018110845A1 PCT/KR2017/013188 KR2017013188W WO2018110845A1 WO 2018110845 A1 WO2018110845 A1 WO 2018110845A1 KR 2017013188 W KR2017013188 W KR 2017013188W WO 2018110845 A1 WO2018110845 A1 WO 2018110845A1
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WO
WIPO (PCT)
Prior art keywords
branch
phase
cable
switchgear
work
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Application number
PCT/KR2017/013188
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English (en)
Korean (ko)
Inventor
권세원
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대원전기 주식회사
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Application filed by 대원전기 주식회사 filed Critical 대원전기 주식회사
Publication of WO2018110845A1 publication Critical patent/WO2018110845A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00—Overhead installations of electric lines or cables
    • H02G7/12—Devices for maintaining distance between parallel conductors, e.g. spacer
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00—Overhead installations of electric lines or cables
    • H02G7/20—Spatial arrangements or dispositions of lines or cables on poles, posts or towers

Definitions

  • the present invention relates to a bypass cable uninterruptible power distribution method, and more specifically, by using a bypass cable installed on the ground or pole during the replacement and relocation of the distribution lines connected to each pole and the change of the transition site.
  • site application is very limited in the place where there are many unstable connection points and excessive equipment input and the work area such as traffic obstacle or the city where there are many transformers.
  • uninterruptible power distribution method without bypass cable intermediate connection point using individual switchable single-phase multi-branch construction switchgear that minimizes the equipment and eliminates the intermediate connection point of bypass cable and improves the voltage drop. It is about.
  • the conventional high voltage distribution line uses a temporary transmission method using a bypass cable, which is one of the uninterrupted electric methods, but it uses the intermediate connection material every 50m by using the high voltage three phase by using a construction switch and a three phase bypass cable. If there is a transformer in the work section, branch from the branch connection material at each installation point of the transformer and supply it to each uninterruptible transformer device.If there is a branch line, the branch line is supplied using the branch connection material to supply a branch line. Work has been done at about 200 ⁇ 300m, but there are many unstable temporary connection places such as voltage drop, and it takes a lot of work time according to the side work such as laying three-phase bypass cable on the ground temporarily and then dismantling it after completion. In order to compensate, the patent registration 10-1122499 is used as' wire wire mechanism and bypass cable Uninterrupted Power Distribution Act was registered.
  • the patent method is a conventional method of installing a special high-pressure three-phase bypass cable as shown in Figure 1, the installation of the temporary cable for the temporary transmission only 20 phase of the special high-pressure three-phase ground or column on the sequential
  • the present invention relates to an uninterruptible power distribution method for replacing, relocating, and changing the transition of single-phase or extra-high voltage three-phase distribution lines by separate connection.
  • transformers 30, 30 'and 30 are installed at every electric pole in the work zone in the urban downtown area with many customers, so that the uninterruptible transformer unit 50 is expensive due to road traffic obstacles. There is a problem that can not be installed every time the application of the method is very limited.
  • Patent Document 1 Korean Patent Application No. 10-1122499.
  • the present invention has been made to solve the above problems, in the branching of the multi-circuit A phase of the high-pressure three-phase, using a single-stage single-stage multi-stage construction switchgear having a single-phase input and three output structure
  • the individual open-ended single-phase multi-branch construction switchgear consisting of a multi-circuit output unit having each switch branched from one input unit to the start section and end pole of the work section in the high-voltage distribution line Respectively install the bypass process, uninterruptible work process, and demolition process,
  • the terminal cable is placed on the input of the individual switchgear single-phase multi-branch construction switchgear and A high voltage distribution line A, and a bypass cable is installed on the ground to the switch of any one of the multi-circuit outputs of the two switchgear-type single-phase multi-branch construction switchgear.
  • Each of them is branched from one switch to the other end of the individual switchgear for single-stage multi-stage construction switchgear, and is placed on the branch A.
  • the uninterruptible power distribution method without the bypass cable intermediate connection point using the individual switchgear single-phase multi-branch construction switchgear according to the present invention is an individual switch-type single-phase multi-branch that can be selectively opened and closed at the time of outputting in the A phase of the special high pressure three phases.
  • the construction switch By using the construction switch, it eliminates the intermediate connection in the middle of the bypass section of the work section and installs the construction switch by connecting it to the uninterruptible transformer device and the branch line directly from the individual switching type single-phase multi-branch construction switch without using the bypass cable branch connection material.
  • FIG. 1 is a state diagram of an uninterruptible power distribution method using a conventional wire transfer mechanism and a bypass cable.
  • Figure 2 is a ground-phase construction state of the A-phase bypass cable with a branch line in the work section of the uninterruptible power distribution method without the bypass cable intermediate connection point using the individual open-close single-phase multi-branch construction switchgear of the present invention.
  • Figure 3 is a ground-phase construction state of the B-phase bypass cable grounding construction with a branch line in the work section of the uninterruptible power distribution method without the bypass cable intermediate connection point using the individual open-close single-phase multi-branch construction switchgear of the present invention.
  • Figure 4 is a ground-phase construction state of the C-phase bypass cable grounding construction with a branch line in the work section of the uninterruptible power distribution method without the bypass cable intermediate connection point using the individual open-close single-phase multi-branch construction switchgear of the present invention.
  • Figure 5 is a simplified circuit diagram of the individual open and close single-phase multi-branch construction switchgear of the uninterruptible power distribution method without the bypass cable intermediate connection point using the individual open and close single-phase multi-branch construction switch.
  • Figure 6 is another embodiment of the bypass cable column laid construction state having a branching line in the work section of the uninterruptible power distribution method without the bypass cable intermediate connection point using the individual switchgear single-phase multi-branch construction switchgear.
  • Figure 7 is another embodiment of the bypass cable ground installation construction state having two branch poles in the work section of the uninterruptible power distribution method without the bypass cable intermediate connection point using the individual switchgear single-phase multi-branch construction switchgear.
  • Figure 9 is another embodiment of the bypass cable ground laying construction state having a transformer line and a branch line in the work section of the uninterruptible power distribution method without the bypass cable intermediate connection point using the individual switchgear single-phase multi-branch construction switchgear.
  • Figure 10 is a ground cable installation state of the bypass cable having three transformer lines and one branch line in the work section of the uninterruptible power distribution method without the bypass cable intermediate connection point using the individual switchgear single-phase multi-branch construction switchgear of the present invention.
  • 11 is another embodiment of the bypass cable pole laying construction state having three transformer lines and one branch line in the work section of the uninterruptible power distribution method without the bypass cable intermediate connection point using the individual switchgear single-phase multi-branch construction switchgear according to the present invention .
  • FIG. 12 is another embodiment of the bypass cable ground laying construction state having two transformer lines and two branch lines in the work section of the uninterruptible power distribution method without the bypass cable intermediate connection point using the individual switchgear single-phase multi-branch construction switch .
  • switch 50 uninterruptible transformer device
  • intermediate connecting member 920 branch connecting member
  • phase A (1) of the three phases of extra-high pressure separates the bypass cable (20) on the ground without an intermediate connection point, and opens and closes the single-stage multi-phase construction switchgear (40) separately on the standing poles (starting pole and ending pole) on both sides of the work section.
  • the individual open and close type single-phase multi-branch construction switchgear 40 installed in the standing column Branch of A phase (1) with a terminal cable (21 ') and the branch line (60), which is connected to the branch line A phase and then inspected, and the individual open-ended single-phase multi-branch switchgear 40 sequentially Connect by bypass.
  • phase A (1) By separating the jumper wires at the start and the end of the work section of the phase A (1) where the extra high pressure was bypassed, the entire phase A (1) in the working period was secured in a diagonal working condition. After completing the alteration or replacement of the main pole, the wire twisted line and the long wire work, and bypassing the jumper wire of the A phase (1), when the uninterrupted work is completed, the individual open / close single phase multi-branch construction switchgear 40 is opened sequentially, and the work is performed. A phase (1) uninterruptible work is completed by separating the standing column and the branch column 60 bypass cable 20 and the terminal cable 21 and 21 'at both ends of the section.
  • the jumper wires at the start and end of the work section of the phase B of the B phase (2) where the extra high pressure was bypassed are separated, and the entire B phase (2) in the working section is moved to a safe working space in a diagonal state.
  • the individual open / close single phase multi-branch construction switchgear 40 is opened sequentially.
  • the standing column and branch column (60) bypass cable 20 and the terminal cable (21) (21 ') at both ends of the work section, the B phase (1) uninterrupted work is completed.
  • each of the individual opening and closing type single-phase multi-branch construction switchgear 40 is formed on one side of the input unit 41 of one line, the other side of each switch 43a (43a ') individually
  • the multi-circuit output section 43 branched into a plurality of lines to be operated is constituted.
  • both sides of the phase A (1) is connected to the input unit 41 of the individually openable single-phase multi-branch construction switch 40, respectively, the bypass cable 20 is any of the secondary side multi-circuit output unit 43 It may be connected to one switch 43a, 43a ', 43a ".
  • the other switch 43a, 43a ', 43a "of the multi-circuit output part 43 of the other individual open / close single phase multi-branch construction switch 40 does not use an individual open / close single phase multi-branch construction switch. It is possible to connect to the branch column 60 using the cable 21 'or the uninterruptible transformer device 50 using the uninterruptible transformer device connecting cable 22 described below.
  • the selection of the phase for the connection of the multi-circuit output portion 43 of the individual open and close single-phase multi-branch construction switchgear 40 configured as described above is not limited, but can be connected through any one of three phases, each phase switch ( It will be appreciated that the configuration is made outputable by the operations 43a) 43a 'and 43a ".
  • bypass cable cannot be installed on the ground due to road crossings or road traffic obstacles in the work zone, only the A-phase (1) of the special high-pressure three phases separates the bypass cable (20) in the vicinity of the neutral wire (70) without intermediate connection points.
  • the special high pressure of the A phase 1 is branched to the terminal cable 21 'by the individual opening-and-closing single-phase multi-branch construction switchgear 40 installed in the winning line. )
  • Connect to the branch line A phase and then check and connect bypass by inserting the individual switch-type single-phase multi-branch construction switch 40 in sequence.
  • phase A (1) By separating the jumper wires at the start and the end of the work section of the phase A (1) where the extra high pressure was bypassed, the entire phase A (1) in the working period was secured in a diagonal working condition. After completing the alteration or replacement of the main pole, the wire twisted line and the long wire work, and bypassing the jumper wire of the A phase (1), when the uninterrupted work is completed, the individual open / close single phase multi-branch construction switchgear 40 is opened sequentially, and the work is performed. A phase (1) uninterruptible work is completed by separating the standing column and the branch column 60 bypass cable 20 and the terminal cable 21 and 21 'at both ends of the section.
  • the B phase 2 and the C phase 3 of the three phases may be performed by repeatedly performing the removal process and the uninterruptible work process.
  • phase A (1) of the three phases of extra-high pressure separates the bypass cable (20) on the ground without an intermediate connection point, and opens and closes the single-stage multi-phase construction switchgear (40) separately on the standing poles (starting pole and ending pole) on both sides of the work section.
  • the secondary low voltage of the uninterruptible transformer device (50) is connected to the low voltage distribution line (A phase) by the low voltage bypass cable (81).
  • Branch line (60) work is connected to the branch line (60) distribution line by branching to the terminal cable (21 ') from the individual opening-and-closing single-phase multi-branch construction switchgear (40) closest to the site conditions on site conditions Opening and closing single phase multi-branch construction switchgear 40 When the mouth is connected to the bypass.
  • the terminal cable 21 ′ connected to the branch column 60 may branch from the uninterruptible transformer device 50 and be prized as the branch column 60. It is to do the uninterrupted work by connecting the terminal cable 21 'of the branch column 60 by branching at the convenient and safe side of the standing column individual open / close single-phase multi-branch construction switchgear 40 or the uninterruptible transformer device 50.
  • phase B (2) and phase C (3) of the three phases are already installed at the time of work bypass cable (20), individual switchgear single-phase multi-branch construction switchgear 40, and terminal cable (21) (21 ') and
  • the uninterruptible transformer device 50, the connecting cable 22, and the low voltage bypass cable 81 By using the uninterruptible transformer device 50, the connecting cable 22, and the low voltage bypass cable 81, the bypass process and the uninterruptible work process are repeatedly performed and the uninterruptible work is completed.
  • the step of dismantling the individual switchgear single-phase multi-branch construction switchgear 40, the terminal cable (21) (21 '), the uninterruptible transformer device (50), the connecting cable (22), the low voltage bypass cable (81) Just do
  • a bypass process is performed.
  • Phase A of the special high pressure three phases Bypass cable (20) is installed on the ground without intermediate connection points, and the individual opening and closing type single phase multi-branch construction switchgear (40) is installed on the winning end of the work section.
  • the A-phase (1) of the individual open / close single-phase multi-branch construction switchgear 40 installed at the winning end of the work section is installed.
  • Branch the extra high pressure to install the individual open / close type single phase multi-branch construction switchgear 40 'in front of the uninterruptible transformer device 50 and branch the branched A phase (1) into 3 extra high voltage lines and connect it to the uninterruptible transformer device 50.
  • phase B (2) and phase C (3) of the three phases are already installed at the time of work, the individual switchgear single-phase multi-branch construction switchgear 40 (40 '), and the terminal cable (21) ( 21 '), the uninterruptible transformer device 50, the connecting cable 22, and the low voltage bypass cable 81 are used to repeat the bypass process and the uninterruptible work process and the uninterrupted work is completed.
  • bypass cable 20 may be located near the neutral line 70 or the low voltage line 80 without an intermediate connection point. It is installed on the columnar, and the individual opening and closing single-phase multi-branch construction switchgear 40 is also installed on the column, both ends of the work section, and the uninterruptible work in the same manner as described in FIG.
  • Branch lines 60 and 60 ' can branch off the special high-pressure A phase from the individual open / close single phase multi-branch construction switchgear 40 or the uninterruptible transformer device 50 installed at both ends of the work section, but FIG.
  • the bypass process of inputting the individual open-ended single-phase multi-branch construction switch 40 in sequence To perform By bypassing the terminal cable (21 ') to the branch line (60) (60') A phase branch line, and after inspection, the bypass process of inputting the individual open-ended single-phase multi-branch construction switch 40 in sequence To perform.
  • the transformer secondary lowering lines 31 and 31 'of the A-phase transformer 30 and 30' are separated, and the work section is opened after opening the COS 35 and 35 'of the transformer 30 and 30'.
  • the new or replacement wire A phase transformer (30) (30 ') COS (35) (35') After connecting the transformer secondary lowering line (31) (31 ') to the low voltage line (80) (80'), disconnect the low voltage bypass cable (81) from the low voltage line (80) (80 '), and open / close single-phase multi-branch construction. Opening the switchgear 40 and 40 'sequentially, and separating the standing column and branch column 60 and 60' bypass cables 20 and the terminal cable 21 and 21 'at both ends of the work section. (1) Complete the uninterrupted work process.
  • phase B (2) and phase C (3) of the three phases are already installed at the time of work, the individual switchgear single-phase multi-branch construction switchgear 40 (40 '), and the terminal cable (21) ( 21 '), the uninterruptible transformer device 50, the connecting cable 22, and the low voltage bypass cable 81 are used to repeat the bypass process and the uninterruptible work process and the uninterrupted work is completed.

Abstract

La présente invention concerne un procédé de construction pour une distribution d'énergie sans coupure d'un câble de dérivation, et plus particulièrement un procédé de construction pour une distribution d'énergie sans coupure sans point de connexion intermédiaire de câble de dérivation à l'aide d'un appareillage de commutation à branchements multiples à phase unique pouvant être ouvert individuellement destiné à la construction, le procédé permettant à l'appareillage de commutation destiné à la construction d'être directement connecté à un dispositif de transformateur sans coupure et à une ligne de branchement sans utiliser d'élément de connexion intermédiaire ni d'élément de connexion de branchement du câble de dérivation, permettant ainsi de supprimer un appareillage de commutation destiné à la construction installé dans un poteau de ligne de branchement, à l'aide d'un appareillage de commutation à branchements multiples à phase unique pouvant être ouvert individuellement destiné à la construction ayant une structure d'entrée à phase unique et à trois sorties pour permettre à l'appareillage de commutation destiné à la construction d'être directement connecté au dispositif de transformateur sans coupure et à la ligne de branchement lors du fonctionnement de chacune des phases A de trois phases de tension extra-élevée. Le procédé de construction peut être facilement appliqué dans une zone de centre-ville compliquée et améliorer la commodité et la stabilité du fonctionnement, par exemple en évitant une chute de tension générée dans un point de connexion temporaire, en évitant une congestion du trafic, et un danger pour les piétons qui traversent.
PCT/KR2017/013188 2016-12-13 2017-11-20 Procédé de construction pour une distribution d'énergie sans coupure sans points de connexion intermédiaires de câble de dérivation à l'aide d'un appareillage de commutation à branchements multiples à phase unique pouvant être ouvert individuellement destiné à la construction WO2018110845A1 (fr)

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KR1020160169158A KR101754043B1 (ko) 2016-12-13 2016-12-13 개별 개폐형 단상 다분기 공사용개폐기를 이용한 바이패스케이블 중간접속개소가 없는 무정전 배전공법
KR10-2016-0169158 2016-12-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110445082A (zh) * 2019-08-20 2019-11-12 长沙理工大学 10kV配电线路的并联间隙的单相安装结构及其测试方法

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KR20090127636A (ko) * 2008-06-09 2009-12-14 한국전력공사 배전변압기 및 저압선로 무정전 교체시스템
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110445082A (zh) * 2019-08-20 2019-11-12 长沙理工大学 10kV配电线路的并联间隙的单相安装结构及其测试方法
CN110445082B (zh) * 2019-08-20 2020-12-01 长沙理工大学 10kV配电线路的并联间隙的单相安装结构及其测试方法

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