JP4395214B2 - Ground-mounted multi-circuit switch - Google Patents

Ground-mounted multi-circuit switch Download PDF

Info

Publication number
JP4395214B2
JP4395214B2 JP7711999A JP7711999A JP4395214B2 JP 4395214 B2 JP4395214 B2 JP 4395214B2 JP 7711999 A JP7711999 A JP 7711999A JP 7711999 A JP7711999 A JP 7711999A JP 4395214 B2 JP4395214 B2 JP 4395214B2
Authority
JP
Japan
Prior art keywords
circuit switch
switch unit
individual
circuit
ground
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP7711999A
Other languages
Japanese (ja)
Other versions
JP2000276964A (en
Inventor
昭 馬場
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daihen Corp
Original Assignee
Daihen Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daihen Corp filed Critical Daihen Corp
Priority to JP7711999A priority Critical patent/JP4395214B2/en
Publication of JP2000276964A publication Critical patent/JP2000276964A/en
Application granted granted Critical
Publication of JP4395214B2 publication Critical patent/JP4395214B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Switch Cases, Indication, And Locking (AREA)
  • Patch Boards (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、地上設置形多回路開閉器に関するものである。
【０００２】
【従来の技術】
配電線を地中化する場合、地上にケースを設置し、その内部に多回路開閉器ユニットを収容し、地下から立ちあげた各地下ケーブルをケース内で多回路開閉器ユニットの各個別開閉器に接続していた。
【０００３】
従来は、地中化の工事は、ほとんど都会で行われていた。その場合、回線数が多いため、図３に示すように、多回路開閉器ユニット１としては６個の個別開閉器２ａ〜２ｆを並設し、これら個別開閉器２ａ〜２ｆの一端側を分岐線３で並列接続していた。この場合、例えば個別開閉器２ａの他端側には幹線地下ケーブル４を接続し、個別開閉器２ｂ，２ｃの他端側には需要家用地下ケーブル５をそれぞれ接続し、需要家のない残りの個別開閉器２ｄ，２ｅの他端側は空き回路とし、末端の個別開閉器２ｆの他端側には幹線地下ケーブル６を接続していた。このような多回路開閉器ユニット１は、図示しないケース内に収容されている。また、多回路開閉器ユニット１としては、絶縁ガス（ＳＦ6 ガス）を充填した容器内に個別開閉器２ａ〜２ｆを収納したガス開閉器が用いられている。容器内に収容する個別開閉器２ａ〜２ｆとしては、真空開閉器あるいは気中開閉器を用いることもできる。この場合、容器内には絶縁ガスを充填する必要はない。
【０００４】
ところが、最近では、地方都市でも地中化工事が行われるようになっている。地方都市では、それ程回線数を必要としないため、図４に示すように、多回路開閉器ユニット１としては４個の個別開閉器２ａ〜２ｄを並設すれば充分であった。
【０００５】
このような地方都市における地上設置形多回路開閉器でも、将来は回線数の増加が見込まれるため、増設可能にしておくことが望ましい。
【０００６】
従来、地上設置形多回路開閉器の増設は、図４〜図６に示すようにして行っていた。
【０００７】
図４に示す地上設置形多回路開閉器での増設は、例えば４個の個別開閉器２ａ〜２ｄを並設してその一端側を分岐線３で並列接続した多回路開閉器ユニット１に、４個の個別開閉器２ｅ〜２ｈを並設した別の多回路開閉器ユニット７と地中化に必要な機材とを新たに増設し、これら個別開閉器２ｅ〜２ｈの一端側を分岐線８で並列接続し、既設の多回路開閉器ユニット１の個別開閉器２ｄと別の多回路開閉器ユニット７の個別開閉器２ｅとの各他端側をケーブル９で接続し、末端の個別開閉器２ｈの他端側には幹線地下ケーブル６を接続し、別の多回路開閉器ユニット７の個別開閉器２ｆの他端側には新需要家用地下ケーブル５´を接続し、需要家のない残りの個別開閉器２ｇの他端側は空き回路としていた。
【０００８】
図５（Ａ）（Ｂ）に示す地上設置形多回路開閉器での増設は、図５（Ａ）に示すように例えば４個の個別開閉器２ａ〜２ｄを並設してその一端側を分岐線３で並列接続した既設の多回路開閉器ユニット１を撤去して、その代わりに例えば６個の個別開閉器２ａ〜２ｆを並設してその一端側を分岐線３で並列接続した多回路開閉器ユニット１´を新設し、個別開閉器２ａの他端側には幹線地下ケーブル４を接続し、個別開閉器２ｂ，２ｃの他端側には需要家用地下ケーブル５をそれぞれ接続し、個別開閉器２ｄの他端側には新需要家用地下ケーブル５´を接続し、需要家のない残りの個別開閉器２ｅの他端側は空き回路とし、末端の個別開閉器２ｆの他端側には幹線地下ケーブル６を接続していた。
【０００９】
図６に示す地上設置形多回路開閉器での増設は、例えば４個の個別開閉器２ａ〜２ｄを並設してその一端側を分岐線３で並列接続した既設の多回路開閉器ユニット１に、１個の個別開閉器２ｅを並設し、この個別開閉器２ｅの一端側を分岐線３に接続し、この個別開閉器２ｅの他端側に新需要家用地下ケーブル５´を接続していた。
【００１０】
【発明が解決しようとする課題】
しかしながら、図４〜図６に示す増設方法では、増設の設備費用が高くなるだけでなく、工事に手間がかかるという問題点があった。
【００１１】
本発明の目的は、需要家の数に合わせて、低コストで、手間をかけずに増設できる地上設置形多回路開閉器を提供することにある。
【００１２】
【課題を解決するための手段】
本発明は、複数の個別開閉器が並設され、各個別開閉器の一端側が分岐線で並列接続されている多回路開閉器ユニットを備え、該多回路開閉器ユニットがケース内に収容されて、各個別開閉器の他端に地下ケーブルが接続される地上設置形多回路開閉器を改良するものである。
【００１３】
本発明に係る地上設置形多回路開閉器においては、ケース内で分岐線に回線増設用接続部が設けられていて、回線増設時に、ケース内に他の多回路開閉器ユニットを収容して、該他の多回路開閉器ユニットの分岐線を回線増設用接続部に接続し得るように構成されている。
【００１４】
上記のように、ケース内で分岐線に回線増設用接続部を設けて、回線増設時に他の多回路開閉器ユニットをケース内に収容して該他の多回路開閉器ユニットの分岐線を回線増設用接続部に接続し得るように構成しておくと、回線増設時に他の多回路開閉器ユニットの分岐線をこの接続部に接続することにより、需要家の数に合わせて、低コストで、手間をかけずに増設作業を行うことができる。
【００１５】
【発明の実施の形態】
図１及び図２は本発明に係る地上設置形多回路開閉器における実施の形態の一例を示したもので、図１はケースの設置前の回路図、図２はケースの設置後の回路図である。
【００１６】
本例の地上設置形多回路開閉器においては、例えば４個の個別開閉器２ａ〜２ｄを並設してその一端側を分岐線３で並列接続した既設の多回路開閉器ユニット１の該分岐線３の端部に、予め接続部１０が設けられている。増設時には、この接続部１０に、例えば２個の個別開閉器２ｅ，２ｆを並設してその一端側を分岐線８で並列接続した別の多回路開閉器ユニット７の該分岐線８が接続されている。これら既設の多回路開閉器ユニット１と別の多回路開閉器ユニット７は、いずれも既設のケース１１内に収容される。
【００１７】
このように既設の多回路開閉器ユニット１の分岐線３に接続部１０を設けておくと、増設時には別の多回路開閉器ユニット７の分岐線８をこの接続部１０に接続することにより、需要家の数に合わせて、低コストで、手間をかけずに増設作業を行うことができる。
【００１８】
【発明の効果】
本発明に係る地上設置形多回路開閉器においては、ケース内で分岐線に回線増設用接続部を設けて、回線増設時に、他の多回路開閉器ユニットをケース内に収容して該他の多回路開閉器ユニットの分岐線を回線増設用接続部に接続し得るように構成したので、回線増設時に他の多回路開閉器ユニットの分岐線をこの接続部に接続することにより、需要家の数に合わせて、低コストで、手間をかけずに増設作業を行うことができる。
【図面の簡単な説明】
【図１】 本発明に係る地上設置形多回路開閉器における実施の形態の一例で、ケースを設置してない状態を示す回路図である。
【図２】 本発明に係る地上設置形多回路開閉器における実施の形態の一例で、ケースを設置している状態を示す回路図である。
【図３】 従来の地上設置形多回路開閉器を示す回路図である。
【図４】 従来の地上設置形多回路開閉器で多回路開閉器ユニットを増設した第１例を示す回路図である。
【図５】 （Ａ）（Ｂ）は従来の地上設置形多回路開閉器で多回路開閉器ユニットを増設する過程の第２例を示す回路図である。
【図６】 従来の地上設置形多回路開閉器で多回路開閉器ユニットを増設した第３例を示す回路図である。
【符号の説明】
１ 多回路開閉器ユニット
２ａ〜２ｈ 個別開閉器
３ 分岐線
４ 幹線地下ケーブル
５ 需要家用地下ケーブル
５´ 新需要家用地下ケーブル
６ 幹線地下ケーブル
７ 別の多回路開閉器ユニット
８ 分岐線
９ ケーブル
１０ 接続部
１１ ケース[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ground-mounted multi-circuit switch.
[0002]
[Prior art]
When distributing distribution lines underground, install a case on the ground, house a multi-circuit switch unit inside it, and connect each underground cable raised from the basement in the case to each individual switch of the multi-circuit switch unit Was connected to.
[0003]
In the past, underground construction was mostly done in the city. In this case, since the number of lines is large, as shown in FIG. 3, as the multi-circuit switch unit 1, six individual switches 2a to 2f are arranged in parallel, and one end side of these individual switches 2a to 2f is branched. They were connected in parallel by line 3. In this case, for example, the trunk underground cable 4 is connected to the other end of the individual switch 2a, and the customer underground cable 5 is connected to the other end of the individual switches 2b and 2c, respectively. The other end sides of the individual switches 2d and 2e are vacant circuits, and the trunk underground cable 6 is connected to the other end side of the terminal individual switch 2f. Such a multi-circuit switch unit 1 is accommodated in a case (not shown). As the multi-circuit switch unit 1, a gas switch in which individual switches 2a to 2f are housed in a container filled with an insulating gas (SF6 gas) is used. As the individual switches 2a to 2f accommodated in the container, a vacuum switch or an air switch can be used. In this case, it is not necessary to fill the container with an insulating gas.
[0004]
However, recently, underground construction is also being carried out in local cities. In a local city, since the number of lines is not so much, as shown in FIG. 4, it is sufficient to arrange four individual switches 2 a to 2 d in parallel as the multi-circuit switch unit 1.
[0005]
Even in such a city-mounted multi-circuit switch in a local city, the number of lines is expected to increase in the future.
[0006]
Conventionally, the installation of ground-mounted multi-circuit switches has been performed as shown in FIGS.
[0007]
4 is installed in the multi-circuit switch unit 1 in which, for example, four individual switches 2a to 2d are arranged in parallel and one end side thereof is connected in parallel by the branch line 3. Another multi-circuit switch unit 7 in which four individual switches 2e to 2h are arranged in parallel and equipment necessary for undergrounding are newly added, and one end side of these individual switches 2e to 2h is connected to the branch line 8 Are connected in parallel, and the other end side of the individual switch 2d of the existing multi-circuit switch unit 1 and the individual switch 2e of another multi-circuit switch unit 7 are connected by a cable 9, and the individual switch at the end The trunk underground cable 6 is connected to the other end of 2h, and the underground cable 5 'for new consumers is connected to the other end of the individual switch 2f of another multi-circuit switch unit 7. The other end of the individual switch 2g is an empty circuit.
[0008]
5A and 5B, for example, as shown in FIG. 5A, for example, four individual switches 2a to 2d are juxtaposed and one end side thereof is arranged. The existing multi-circuit switch unit 1 connected in parallel by the branch line 3 is removed, and instead, for example, six individual switches 2a to 2f are arranged in parallel and one end side thereof is connected in parallel by the branch line 3 The circuit switch unit 1 'is newly installed, the main underground cable 4 is connected to the other end of the individual switch 2a, and the customer underground cable 5 is connected to the other end of the individual switches 2b and 2c, A new customer underground cable 5 'is connected to the other end of the individual switch 2d, the other end of the remaining individual switch 2e without a consumer is an empty circuit, and the other end of the individual switch 2f at the end. Was connected to the underground trunk cable 6.
[0009]
6 is installed in parallel with, for example, four individual switches 2a to 2d and one end thereof is connected in parallel with a branch line 3, for example. In addition, one individual switch 2e is arranged in parallel, one end of the individual switch 2e is connected to the branch line 3, and a new customer underground cable 5 'is connected to the other end of the individual switch 2e. It was.
[0010]
[Problems to be solved by the invention]
However, the extension method shown in FIGS. 4 to 6 has a problem that not only the cost of the extension equipment is increased, but also the work is troublesome.
[0011]
SUMMARY OF THE INVENTION An object of the present invention is to provide a ground-mounted multi-circuit switch that can be added at low cost and without any effort in accordance with the number of consumers.
[0012]
[Means for Solving the Problems]
The present invention includes a multi-circuit switch unit in which a plurality of individual switches are arranged in parallel, and one end side of each individual switch is connected in parallel by a branch line, and the multi-circuit switch unit is accommodated in a case. The present invention is to improve a ground-mounted multi-circuit switch in which an underground cable is connected to the other end of each individual switch .
[0013]
In Ground type multi circuit switch according to the present invention, have a line extension connection portion is provided in the branch line in the case, when the line expansion, to accommodate the other multi-circuit switch unit in the case, The branch line of the other multi-circuit switch unit is configured to be connected to the line extension connection section.
[0014]
As described above, a line extension connection portion is provided in the branch line in the case, and when the line is added, another multi-circuit switch unit is accommodated in the case and the branch line of the other multi-circuit switch unit is connected to the line. If it is configured so that it can be connected to an extension connection section, connecting the branch line of another multi-circuit switch unit to this connection section at the time of line expansion will reduce the cost according to the number of customers. , Expansion work can be done without much effort.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
1 and 2 show an example of an embodiment of a ground-mounted multi-circuit switch according to the present invention. FIG. 1 is a circuit diagram before the case is installed, and FIG. 2 is a circuit diagram after the case is installed. It is.
[0016]
In the ground-mounted multi-circuit switch of this example, for example, the branch of the existing multi-circuit switch unit 1 in which four individual switches 2a to 2d are juxtaposed and one end thereof is connected in parallel by a branch line 3 is used. A connecting portion 10 is provided in advance at the end of the line 3. At the time of expansion, the branch line 8 of another multi-circuit switch unit 7 in which, for example, two individual switches 2e and 2f are arranged in parallel and one end side thereof is connected in parallel by the branch line 8 is connected to the connection portion 10. Has been. Both the existing multi-circuit switch unit 1 and another multi-circuit switch unit 7 are accommodated in an existing case 11.
[0017]
Thus, if the connecting portion 10 is provided in the branch line 3 of the existing multi-circuit switch unit 1, by connecting the branch line 8 of another multi-circuit switch unit 7 to this connecting portion 10 at the time of expansion, Depending on the number of customers, expansion work can be performed at low cost and without any effort.
[0018]
【The invention's effect】
In the ground-mounted multi-circuit switch according to the present invention, a connection part for line expansion is provided in the branch line in the case, and when the line is expanded, another multi-circuit switch unit is accommodated in the case and the other Since the branch line of the multi-circuit switch unit can be connected to the connection part for line expansion, the branch line of another multi-circuit switch unit can be connected to this connection part at the time of line expansion. It is possible to carry out expansion work at low cost and without any effort.
[Brief description of the drawings]
FIG. 1 is a circuit diagram showing a state where a case is not installed in an example of an embodiment of a ground-mounted multi-circuit switch according to the present invention.
FIG. 2 is a circuit diagram showing a state where a case is installed in an example of an embodiment of a ground-mounted multi-circuit switch according to the present invention.
FIG. 3 is a circuit diagram showing a conventional ground-mounted multi-circuit switch.
FIG. 4 is a circuit diagram showing a first example in which a multi-circuit switch unit is added in a conventional ground-mounted multi-circuit switch.
FIGS. 5A and 5B are circuit diagrams showing a second example of a process of adding a multi-circuit switch unit with a conventional ground-mounted multi-circuit switch. FIGS.
FIG. 6 is a circuit diagram showing a third example in which a multi-circuit switch unit is added in a conventional ground-mounted multi-circuit switch.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Multi-circuit switch unit 2a-2h Individual switch 3 Branch line 4 Trunk underground cable 5 Consumer underground cable 5 'Underground cable for new consumers 6 Trunk underground cable 7 Another multi-circuit switch unit 8 Branch line 9 Cable 10 Connection Part 11 Case

Claims (1)

複数の個別開閉器が並設され、前記各個別開閉器の一端側が分岐線で並列接続されている多回路開閉器ユニットを備え、該多回路開閉器ユニットがケース内に収容されて、各個別開閉器の他端に地下ケーブルが接続される地上設置形多回路開閉器において、
前記ケース内で前記分岐線に回線増設用接続部が設けられ、
回線増設時には、前記ケース内に他の多回路開閉器ユニットを収容して、該他の多回路開閉器ユニットの分岐線を前記回線増設用接続部に接続し得るように構成されていることを特徴とする地上設置形多回路開閉器。A plurality of individual switches are provided in parallel, comprising a multi-circuit switch unit one end of each of the individual switches are connected in parallel with the branch line and multi circuit switch unit is accommodated in the case, each individual In a ground-mounted multi-circuit switch where an underground cable is connected to the other end of the switch,
In the case, a connection part for line expansion is provided on the branch line ,
When the line is expanded, the other multi-circuit switch unit is accommodated in the case, and the branch line of the other multi-circuit switch unit is configured to be connected to the line expansion connection section. Features a ground-mounted multi-circuit switch.
JP7711999A 1999-03-23 1999-03-23 Ground-mounted multi-circuit switch Expired - Fee Related JP4395214B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7711999A JP4395214B2 (en) 1999-03-23 1999-03-23 Ground-mounted multi-circuit switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7711999A JP4395214B2 (en) 1999-03-23 1999-03-23 Ground-mounted multi-circuit switch

Publications (2)

Publication Number Publication Date
JP2000276964A JP2000276964A (en) 2000-10-06
JP4395214B2 true JP4395214B2 (en) 2010-01-06

Family

ID=13624917

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7711999A Expired - Fee Related JP4395214B2 (en) 1999-03-23 1999-03-23 Ground-mounted multi-circuit switch

Country Status (1)

Country Link
JP (1) JP4395214B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4536911B2 (en) * 2000-12-05 2010-09-01 関西電力株式会社 Ground-mounted multi-circuit switch with regular standby switching function

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56129112U (en) * 1980-02-29 1981-10-01
JPS56162905A (en) * 1980-05-20 1981-12-15 Takamatsu Electric Works Ltd Branch unit for multiple circuit
JPH0613535Y2 (en) * 1986-05-02 1994-04-06 日新電機株式会社 Low voltage distribution equipment
JPH047603Y2 (en) * 1986-05-02 1992-02-27
JPH089919Y2 (en) * 1989-06-30 1996-03-21 日立電線株式会社 Switchgear for power distribution, direct termination of lightning arrester
JPH0649043Y2 (en) * 1989-07-14 1994-12-12 株式会社三英社製作所 Distribution tower
JPH0746009Y2 (en) * 1989-10-11 1995-10-18 日本高圧電気株式会社 High pressure multi-circuit gas switch
JPH08168124A (en) * 1994-12-13 1996-06-25 Meidensha Corp Switchgear
JPH08172709A (en) * 1994-12-20 1996-07-02 Chiyouyou Denki Kk Terminal board
JPH0928008A (en) * 1995-07-11 1997-01-28 Fujita Corp Electrical wiring system

Also Published As

Publication number Publication date
JP2000276964A (en) 2000-10-06

Similar Documents

Publication Publication Date Title
JPH0970112A (en) Gas insulation switchgear
JP4395214B2 (en) Ground-mounted multi-circuit switch
JP2001016714A (en) Distribution board
CN101752798B (en) High voltage metal enclosed electrical switchgear
JP3117472B2 (en) Substation equipment for customers
GB2243245A (en) Gas insulated switchgear
US20030128501A1 (en) Switchgear
KR100993099B1 (en) Electric power redistribution apparatus and electric power distribution arrangment in building using the apparatus
US10247331B1 (en) Multi-functional electrical service and device supporting assembly
JP3178209B2 (en) High-voltage cabinet with built-in transformer and its underground distribution system
JP2521349Y2 (en) Low-voltage interconnection device
JP3309647B2 (en) Gas insulated switchgear
JP2000069630A (en) Gas-insulated switchgear
JP3990528B2 (en) Gas insulated switchgear
JPH10145917A (en) Gas-insulated switchgear
JPS6162304A (en) Gas insulated switching device
JP2002165318A (en) Gas-insulation switching device and gas-insulation substation using the device
JPH07163030A (en) Temporary power-supply system
JPH079529Y2 (en) Kyuburu type gas insulated switchgear
JPH0984229A (en) Gas insulated switchgear
JPH06327133A (en) Branch joint
JPH0793774B2 (en) Gas insulated switchgear
JPH027811A (en) Compressed-gas-insulated switchgear
JPS59153408A (en) Gas insulated switching device of triple bus type
WO2000021307A1 (en) Expanding the capacity of a main distribution frame

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20060217

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20080603

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080729

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20081216

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Effective date: 20091007

Free format text: JAPANESE INTERMEDIATE CODE: A01

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20091019

R150 Certificate of patent (=grant) or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 3

Free format text: PAYMENT UNTIL: 20121023

LAPS Cancellation because of no payment of annual fees