WO2016039250A1 - 真空遮断器 - Google Patents
真空遮断器 Download PDFInfo
- Publication number
- WO2016039250A1 WO2016039250A1 PCT/JP2015/075078 JP2015075078W WO2016039250A1 WO 2016039250 A1 WO2016039250 A1 WO 2016039250A1 JP 2015075078 W JP2015075078 W JP 2015075078W WO 2016039250 A1 WO2016039250 A1 WO 2016039250A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- circuit breaker
- vacuum circuit
- connection terminal
- vacuum
- plate
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
Definitions
- This invention relates to a vacuum circuit breaker housed in a switchboard.
- the outer periphery of the vacuum switch is covered with a solid insulator, and a grounding layer is formed on the outer peripheral surface to prevent the occurrence of unintended short circuits or ground faults during maintenance and inspection work.
- Patent Document 1 International Publication No. 2000/24016 (Patent Document 1).
- the outer periphery of the vacuum switch of each phase is covered with a solid insulator, and a ground layer is formed on the outer peripheral surface. Therefore, it is necessary to form a solid insulator layer and a ground layer, respectively. As a result, the manufacturing cost is high, and the outer periphery of the bus-side conductor or load-side conductor is not insulated and the charged part is exposed, which may cause an unintended short circuit or ground fault during maintenance work. There was a point.
- An object of the present invention is to obtain a vacuum circuit breaker that has a simple configuration and does not cause an unintended short circuit or ground fault during maintenance and inspection work.
- the vacuum circuit breaker includes a front plate, a circuit breaker, and a connection terminal arranged from the front side to the rear side of the vacuum circuit breaker, and the vacuum circuit breaker is inserted into or pulled out from the switchboard.
- the vacuum circuit breaker in which the innermost side of the connection terminal of the appliance is brought into contact with and separated from the main circuit connection terminal on the switchboard side, the side surface or the upper surface of the breaker part and the connection terminal are predetermined from the breaker part and the connection terminal. The insulation distance is secured and surrounded by a thin plate-shaped grounding member.
- the side surface or the upper surface of the breaker and the connection terminal of the vacuum circuit breaker is surrounded by the thin plate-like grounding member while securing a predetermined insulation distance from the breaker and the connection terminal.
- a vacuum circuit breaker that has a simple structure and prevents unintended short-circuits or ground faults during maintenance and inspection work can be prevented from touching the breaker or the charging part of the connection terminal from the outside of the breaker. Can do.
- FIG. 1 is a plan sectional view of a switchboard.
- 1 is a switchboard
- 2 is a vacuum circuit breaker
- 3 is a rear connection chamber of the switchboard
- 4 is a circuit breaker chamber
- 5 is an opening on the front of the switchboard.
- FIG. 1 shows a door that is rotatable in the A or B direction in FIG. 1 with a hinge (not shown) as a fulcrum.
- Reference numeral 6 denotes a partition partitioning the rear connection chamber 3 and the circuit breaker chamber 4, and 7 denotes an insulating conical bushing having a concave cross-section, and the partition 6 side of the rear connection chamber 3 Corresponding to the number of connection terminals of the vacuum circuit breaker 2, six bushings (three rows in the horizontal direction and two steps in the vertical direction) are mounted on the wall surface.
- Reference numeral 8 denotes a main circuit connection terminal of the switchboard 1, which is a conductor having a round bar shape or a polygonal bar shape such as a square, which is attached through the bottom surface of the bushing 7. One end of the main circuit connection terminal 8 in the bushing 7 is connected to the vacuum circuit breaker 2, and the other end is connected to a main circuit conductor (not shown) of the switchboard 1 in the rear connection chamber 3.
- Reference numeral 9 denotes a front plate of the vacuum circuit breaker 10
- 10 denotes an operation mechanism of the vacuum circuit breaker 2 arranged behind the front plate
- 11 denotes a single pole having a built-in vacuum switch
- 12 denotes the single plate.
- the pole 11 is composed of a single pole 11 corresponding to the number of phases (three phases) of the vacuum circuit breaker 2 arranged side by side in the horizontal direction
- 13 is a connection terminal derived from each single pole 11 in the rear direction
- 14 is A contact attached to the other end of the connection terminal 13 is shown, and the tip of the contact 14 is inserted into the bushing 7 from a through hole (not shown) for insertion of the connection terminal 13 formed in the partition wall 6.
- the main circuit connection terminal 8 is slidably connected to one end of the main circuit connection terminal 8.
- Reference numeral 15 denotes a ground metal plate arranged so as to cover the upper part and the side part of the blocking part 12, and the spatial distance between the charging part surface of the blocking part 12 or the connection terminal 13 and the inner surface of the ground metal plate 15. (Spatial insulation distance) is a dimension that can ensure a predetermined insulation performance at a minimum or more.
- reference numeral 16 denotes wheels mounted at four positions on the front, rear, left and right of the lower part of the vacuum circuit breaker 2, and the wheel 16 is the vacuum circuit breaker 2. Is reduced in operating force when moving in the circuit breaker chamber 4 in the front-rear direction, facilitating insertion and extraction operations.
- Reference numeral 17 denotes an insulating frame of the single electrode 11 formed separately in each phase
- 18 denotes a vacuum switch held in the insulating frame 17, and the vacuum switch 18 is opened and closed by the operating mechanism 10 via an operation link 19.
- Reference numeral 20 denotes a terminal mounted on one side surface of the single electrode 11 (on the connection terminal 13 side), and the terminal 20 is electrically connected to each of the fixed side and movable side electrodes of the vacuum switch 18.
- FIG. 3 is a front view showing a state in which the door 5 of the switchboard 1 is opened
- FIG. 4 is a perspective view of the vacuum circuit breaker 2 as viewed from the upper rear side.
- the ground metal plate 15 is formed in an inverted U shape when viewed from the front side so as to cover the upper surface and both side surfaces of the blocking portion 12. Further, as shown in FIG. 1, the rear (back) end of the ground metal plate 15 extends so as to approach the front surface of the partition 6 in a state where the vacuum circuit breaker 2 is inserted. Located in the vicinity. The front end of the ground metal plate 15 extends so as to approach the rear surface of the front plate 9 and is located in the vicinity of the front plate 9.
- the lower end portion of the ground metal plate 15 is disposed on the upper portion of the carriage 21 of the vacuum circuit breaker 2 as shown in FIG.
- the lower end portion of the ground metal plate 15 is bent in an L shape, and the L bent portion is in contact with the upper surface of the carriage 21 and the left and right sides of the vacuum circuit breaker 2 and It is fixed to the upper surface of the carriage 21 by a plurality of screws 22 at two positions in the front and rear (total of four positions).
- the upper surface and side surfaces of the breaker 12 and the connection terminal 13 of the vacuum circuit breaker 2 are covered with the ground metal plate 15, the breaker 12 and the connection terminal from the outside (side or upper part) of the vacuum breaker 2. It is possible to prevent inspection tools or tools from coming into contact with the 13 charging units.
- the material of the ground metal plate 15 described as the first embodiment is an example in which an iron plate having a thickness of 2.3 mm is used.
- any material may be used as long as it is conductive and can be grounded. Even with a plate or the like, the same effect can be obtained.
- an insulating plate having a conductive function can be used as long as a predetermined insulating distance can be secured from the charging unit of the blocking unit 12 and the connection terminal 13 and further an inspection tool or tool can be prevented from approaching the charging unit. Or the insulating sheet etc. which added the electrically conductive function may be sufficient. These are collectively referred to as a plate-like ground member.
- the ground metal plate 15 is formed in an inverted U shape when viewed from the front of the vacuum circuit breaker 2, but the ground metal plate shown in the second embodiment is shown in FIG.
- the upper plate 15a and the two side plates 15b are separated from each other and fastened to each other by screws 22.
- the ground metal plate 15 is composed of one top plate 15a and two side plates 15b.
- the ceiling of the circuit breaker chamber 4 is a vacuum circuit breaker. 2
- the ground metal plate 15 of the vacuum circuit breaker 2 can be configured with only two side plates 15b as shown in FIG. Storage can be further facilitated.
- the vacuum circuit breaker 2 is the example which arranged the front plate 9, the operation mechanism 10, the interruption
- this shows the configuration of the most common vacuum circuit breaker, and by using such a configuration, the height of the entire apparatus can be reduced.
- the position of the operation mechanism 10 is not limited to the position between the front plate 9 and the blocking portion 12, and the height of the entire device is slightly higher, but may be below the blocking portion 12, and The width may be slightly larger, but it may be a side portion of the blocking portion 12.
- the vacuum circuit breaker has been described. However, the breaker or the charging part of the connection terminal is exposed to the outside (side or upper part) of the breaker.
- the present invention can also be applied to semiconductor breakers, gas circuit breakers, air circuit breakers, magnetic circuit breakers, vacuum switches, electromagnetic contactors, and the like.
Abstract
Description
図1から図4は、この発明を実施するための実施の形態1における真空遮断器と、この真空遮断器を収納した配電盤を示すものである。図1は配電盤の平面断面図であり、図1において、1は配電盤、2は真空遮断器、3は前記配電盤1の後部接続室、4は遮断器室、5は配電盤前面の開口部を塞ぐための扉を示し、ヒンジ(図示せず)を支点として図1に於いてAあるいはB方向に回動自在な扉を示している。6は前記後部接続室3と前記遮断器室4との間を区画する隔壁、7は断面が凹状に形成された絶縁物性の円錐状のブッシングを示し、前記隔壁6の前記後部接続室3側の壁面に真空遮断器2の接続端子の数に対応して6個のブッシング(水平方向に3列、上下方向に2段)が装着されている。8は配電盤1の主回路接続端子を示し、前記ブッシング7の底面を貫通して装着された断面が丸形の棒状あるいは四角などの多角形の棒状の導体である。この主回路接続端子8の前記ブッシング7内の一端は真空遮断器2に接続され、他端は前記後部接続室3内で配電盤1の主回路導体(図示せず)に接続されている。
なお、実施の形態1では、接地金属板15は真空遮断器2の正面から見て逆U字状に形成したものであったが、実施の形態2に示す接地金属板は、図5に示すように、1枚の上面板15aと2枚の側面板15bに分離されており、ねじ22にて互いに締結されている。このような構成にすることで、逆U字状に折り曲げする工程を省略でき、また平板だけで接地金属板を構成するようにしたため、接地金属板を構成する各部材を小さくすることが出来、製造あるいは保管を容易化することが可能となる。
また、実施の形態2では接地金属板15は、1枚の上面板15aと2枚の側面板15bで構成されていたが、実施の形態3においては、遮断器室4の天井を真空遮断器2の前面板9の高さと同じ程度に低くすることで、真空遮断器2の接地金属板15を、図6に示すように側面板15bの2枚のみで構成することが可能となり、製造あるいは保管をさらに容易化することが可能となる。
Claims (9)
- 真空遮断器の前面側から後部側に向かって、前面板、遮断部、接続端子を配列し、前記真空遮断器を配電盤内へ挿入あるいは引出すことで前記真空遮断器の前記接続端子の最奥側を前記配電盤の主回路接続端子に接離させる前記真空遮断器において、前記遮断部及び前記接続端子から所定の空間絶縁距離以上の距離を確保した位置に前記遮断部及び前記接続端子の側面あるいは上面を囲う板状接地部材を配置したことを特徴とする、真空遮断器。
- 前記板状接地部材は、平板状の金属板であることを特徴とする、請求項1に記載の真空遮断器。
- 前記遮断部は、フレーム内に単相の真空スイッチを保持し前記真空スイッチの両極にそれぞれ接続された端子を備え前記操作機構に連結されて前記真空スイッチを開閉する単極を、真空遮断器の前面側から見て横方向に複数相分の前記単極を並置したものであることを特徴とする、請求項1又は請求項2に記載の真空遮断器。
- 前記接続端子は、一端が前記単極の各端子に接続され、他端に前記配電盤の前記主回路接続端子に接続する接触子を備えていることを特徴とする、請求項1から請求項3のいずれか1項に記載の真空遮断器。
- 前記板状接地部材は、前記真空遮断器の側面だけを覆うものであることを特徴とする、請求項1に記載の真空遮断器。
- 前記板状接地部材は、前記真空遮断器の側面及び上面を覆うものであることを特徴とする、請求項1に記載の真空遮断器。
- 前記板状接地部材の奥側端は、前記配電盤の隔壁近傍まで延在していることを特徴とする、請求項1、請求項5および請求項6のいずれか1項に記載の真空遮断器。
- 前記真空遮断器は、前記配電盤内への挿入方向に対して垂直面状に対向する形に配設された前記配電盤内の隔壁の配設位置の手前側から奥側にかけての範囲のいずれかの位置に配置された配電盤の前記主回路接続端子に接離するものであることを特徴とする、請求項1から請求項7のいずれか1項に記載の真空遮断器。
- 前記真空遮断器は、真空遮断器の前面側から後部側に向かって、前記前面板、操作機構、前記遮断部、前記接続端子を配列したものであることを特徴とする、請求項1から請求項8のいずれか1項に記載の真空遮断器。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201580047904.2A CN106796852B (zh) | 2014-09-09 | 2015-09-03 | 真空断路器 |
JP2016507722A JP6062105B2 (ja) | 2014-09-09 | 2015-09-03 | 真空遮断器 |
KR1020177000708A KR20170016480A (ko) | 2014-09-09 | 2015-09-03 | 진공 차단기 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014183194 | 2014-09-09 | ||
JP2014-183194 | 2014-09-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016039250A1 true WO2016039250A1 (ja) | 2016-03-17 |
Family
ID=55458998
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2015/075078 WO2016039250A1 (ja) | 2014-09-09 | 2015-09-03 | 真空遮断器 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP6062105B2 (ja) |
KR (1) | KR20170016480A (ja) |
CN (1) | CN106796852B (ja) |
WO (1) | WO2016039250A1 (ja) |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6198103A (ja) * | 1984-10-18 | 1986-05-16 | 三菱電機株式会社 | 引出形真空遮断器 |
JPS62122405U (ja) * | 1986-01-23 | 1987-08-04 | ||
JPH01101103U (ja) * | 1987-12-22 | 1989-07-07 | ||
JPH08185772A (ja) * | 1994-12-28 | 1996-07-16 | Mitsubishi Electric Corp | 真空遮断器 |
WO2000024016A1 (fr) * | 1998-10-20 | 2000-04-27 | Hitachi, Ltd. | Commutateur a vide et appareillage de commutation a vide |
JP2009240095A (ja) * | 2008-03-27 | 2009-10-15 | Toshiba Corp | 真空遮断器 |
JP2011055672A (ja) * | 2009-09-03 | 2011-03-17 | Toshiba Corp | 金属閉鎖形スイッチギヤ |
JP2014131387A (ja) * | 2012-12-28 | 2014-07-10 | Mitsubishi Electric Corp | スイッチギヤ |
JP2014150606A (ja) * | 2013-01-31 | 2014-08-21 | Mitsubishi Electric Corp | スイッチギヤ |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3915948A1 (de) * | 1989-05-12 | 1990-11-15 | Siemens Ag | Lastschaltanlage mit einem dreistellungsschalter |
JPH07318447A (ja) * | 1994-05-30 | 1995-12-08 | Mitsubishi Electric Corp | 真空度監視装置 |
JPH1141722A (ja) * | 1997-07-24 | 1999-02-12 | Mitsubishi Electric Corp | 開閉器 |
JP5026537B2 (ja) * | 2010-02-03 | 2012-09-12 | 株式会社日立製作所 | スイッチギヤ |
JP5181003B2 (ja) * | 2010-08-23 | 2013-04-10 | 株式会社日立製作所 | スイッチギヤ |
KR101510982B1 (ko) * | 2011-06-20 | 2015-04-10 | 미쓰비시덴키 가부시키가이샤 | 진공 차단기 |
KR20130100596A (ko) * | 2012-03-02 | 2013-09-11 | 엘에스산전 주식회사 | 회로차단기 |
-
2015
- 2015-09-03 WO PCT/JP2015/075078 patent/WO2016039250A1/ja active Application Filing
- 2015-09-03 JP JP2016507722A patent/JP6062105B2/ja active Active
- 2015-09-03 KR KR1020177000708A patent/KR20170016480A/ko active Search and Examination
- 2015-09-03 CN CN201580047904.2A patent/CN106796852B/zh active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6198103A (ja) * | 1984-10-18 | 1986-05-16 | 三菱電機株式会社 | 引出形真空遮断器 |
JPS62122405U (ja) * | 1986-01-23 | 1987-08-04 | ||
JPH01101103U (ja) * | 1987-12-22 | 1989-07-07 | ||
JPH08185772A (ja) * | 1994-12-28 | 1996-07-16 | Mitsubishi Electric Corp | 真空遮断器 |
WO2000024016A1 (fr) * | 1998-10-20 | 2000-04-27 | Hitachi, Ltd. | Commutateur a vide et appareillage de commutation a vide |
JP2009240095A (ja) * | 2008-03-27 | 2009-10-15 | Toshiba Corp | 真空遮断器 |
JP2011055672A (ja) * | 2009-09-03 | 2011-03-17 | Toshiba Corp | 金属閉鎖形スイッチギヤ |
JP2014131387A (ja) * | 2012-12-28 | 2014-07-10 | Mitsubishi Electric Corp | スイッチギヤ |
JP2014150606A (ja) * | 2013-01-31 | 2014-08-21 | Mitsubishi Electric Corp | スイッチギヤ |
Also Published As
Publication number | Publication date |
---|---|
JPWO2016039250A1 (ja) | 2017-04-27 |
KR20170016480A (ko) | 2017-02-13 |
JP6062105B2 (ja) | 2017-01-18 |
CN106796852A (zh) | 2017-05-31 |
CN106796852B (zh) | 2020-01-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2017866B1 (en) | Vacuum insulated switchgear | |
EP2608240B1 (en) | Arc extinguishing apparatus for ring main unit | |
US8975550B2 (en) | Switch unit and switchgear | |
JP2001352623A (ja) | ガス絶縁開閉装置 | |
WO2013084572A1 (ja) | スイッチギヤ | |
KR20140036111A (ko) | 직류 개폐기의 소호 기구, 및 상기 소호 기구를 가지는 직류 개폐기 및 직류 차단기 | |
JP5026537B2 (ja) | スイッチギヤ | |
TW201409884A (zh) | 開關裝置及開關裝置之組裝方法 | |
CA3083150A1 (en) | Switchgear unit with isolated input fuse holder assembly | |
JP3820809B2 (ja) | スイッチギヤの断路装置 | |
JP5602977B1 (ja) | ガス絶縁スイッチギヤ | |
JP2008283734A (ja) | 金属閉鎖形スイッチギヤおよびその組立方法 | |
KR101490176B1 (ko) | 인출형 차단기용 외함 | |
JP6062105B2 (ja) | 真空遮断器 | |
CN206312857U (zh) | 一种低压断路器 | |
KR20180069579A (ko) | 배전반의 접지스위치 | |
KR102166906B1 (ko) | 링메인유닛 | |
KR20140002193U (ko) | 배선용 회로차단기의 상부 커버 | |
EP3561848B1 (en) | Contactor | |
KR101879339B1 (ko) | 배전반의 접지스위치 | |
CN105304423A (zh) | 断路器 | |
KR200479444Y1 (ko) | 배선용 차단기 | |
EP3869646B1 (en) | An electric switchgear for lv and mv applications | |
CN203103823U (zh) | 一种高压负荷开关柜 | |
JP6645866B2 (ja) | 高圧開閉器 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2016507722 Country of ref document: JP Kind code of ref document: A |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 15839604 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 20177000708 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 15839604 Country of ref document: EP Kind code of ref document: A1 |