EP2880728A2 - Dispositif de commutation compact, et agencement d'obturateur associé - Google Patents

Dispositif de commutation compact, et agencement d'obturateur associé

Info

Publication number
EP2880728A2
EP2880728A2 EP13771590.0A EP13771590A EP2880728A2 EP 2880728 A2 EP2880728 A2 EP 2880728A2 EP 13771590 A EP13771590 A EP 13771590A EP 2880728 A2 EP2880728 A2 EP 2880728A2
Authority
EP
European Patent Office
Prior art keywords
switchgear
circuit breaker
monoblock
shutter
contacts
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.)
Withdrawn
Application number
EP13771590.0A
Other languages
German (de)
English (en)
Inventor
Babu SANKAR
Harsha Vaddin
Subbaiahthever DUKKAIAPPAN
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.)
ABB Technology AG
Original Assignee
ABB Technology AG
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 ABB Technology AG filed Critical ABB Technology AG
Publication of EP2880728A2 publication Critical patent/EP2880728A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B11/00—Switchgear having carriage withdrawable for isolation
    • H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B11/00—Switchgear having carriage withdrawable for isolation
    • H02B11/24—Shutters or guards
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
    • H02B1/305—Cable entries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/56—Cooling; Ventilation

Definitions

  • the invention relates to a switchgear and more particularly to a compact switchgear having more simplified construction.
  • the long contact arms leads to a longer current flow path which contributes to power loss, generation of heat and excess material usage.
  • Also there is difficultly in assembling the switchgear as various components of the switchgear are assembled onsite ffl*d A3 ⁇ 43 ⁇ 4 ⁇ 3eSsienSlbftd.. B ⁇ sQ the presence of dual shutter mechanism and a vent for mounting the gas duct causes the switchgear to be vulnerable to dust. This causes the ingress protection rating of the switchgear to suffer.
  • Switchgears are often used in built-up areas or other spatially restricted areas. Hence the compactness of the switchgear is very important, in addition to the performance, simplicity of construction and assembly. Therefore there is a need for a compact switchgear having more simplified construction and more improved performance.
  • It is also another object of the invention is to provide a compact switchgear having a current path which is shorter and has better ingress protection.
  • the invention provides a switchgear having a circuit breaker and a monoblock.
  • the circuit breaker has two sets of movable contacts, one set of movable contacts electrically connectible to the jumpers and the other set of movable contacts electrically connectible to the current transformer.
  • the monoblock has two sets of stationary contacts, one set of stationary contacts being electrically connected to the jumpers and the other set of stationary contacts being electrically connected to the current transformer.
  • the monoblock is electrically connectible to the circuit breaker.
  • the one set of movable contacts of the circuit breaker and the other set of movable contacts of the circuit breaker are slidable over the corresponding one set of stationary contacts of the monoblock and the corresponding other set of stationary contacts of the monoblock respectively, to allow engagement or disengagement. This engagement or disengagement electrically connects or disconnects the circuit breaker and the monoblock, respectively.
  • Fig. 2a is a schematic diagram of the switchgear according to the invention with the contacts of the circuit breaker and the monoblock in disengaged position;
  • Fig. 2b is a schematic diagram of the switchgear according to the invention with the contacts of the circuit breaker and the monoblock in engaged position;
  • Fig. 4a is an isometric view of the monoblock according to the invention.
  • Fig. 4b shows the monoblock of Fig. 4a according to the invention.
  • Fig. 1 is a schematic diagram of conventional horizontal isolation switchgear 100 consisting of power cable 110, current transformer 120 connected to current transformer side stationary contact 140, jumpers 130, busbars 160 connected to bus side stationary contact 150, gas duct 170, circuit breaker 180 and dual shutter mechanism 190.
  • the circuit breaker includes a circuit breaker pole 183 on which two contact arms 184 and 185, are located. The contact arms 184 and 185 have contacts 186 and 189 respectively.
  • the contact 186 of the circuit breaker 180 is electrically connectible to the current transformer side contact 140.
  • the contact 189 of the circuit breaker 180 is electrically connectible to the bus side contact 150.
  • a vent 175 is provided on the top of the switchgear 100 for integration of gas duct 170.
  • This movement of the circuit breaker pole 183 requires vacant space in the switchgear 100.
  • the space to be left vacant is in direct relation to the length of the contact arms 184 and 185 of the circuit breaker 180.
  • switchgears having circuit breaker with longer contact arms are large in size. This is an undesirable feature in switchgears.
  • the space above the circuit breaker 180 is also not utilized in the conventional design of switchgear 100. Additionally when contact arms of the circuit breaker are long, the cost of material is also high. In the conventional design the current carrying path is long. This results in power loss, increased generation of heat and excess copper usage.
  • This monoblock has two sets of stationary contacts 263 and 266, one set of stationary contacts 263 electrically connected to the jumpers 230 and the other set of stationary contacts 266 electrically connected to the current transformer 250. Both the sets of stationary contacts 263 and 266 are located in the monoblock 260.
  • the monoblock 260 is located in corresponding relation to the circuit breaker 210 in such a manner that both the sets of movable contacts 216 and 219 of the circuit breaker 210 can be accommodated within the lower portion of the monoblock 260, in which the lower portion of the monoblock is hollow.
  • the lower portion of the monoblock has compartments which can accommodate both the sets of movable contacts 216 and 219 of the circuit breaker 210.
  • a shutter arrangement 220 is provided for the switchgear 200.
  • the circuit breaker 210 of the invention has a moving means / arrangement to move the circuit breaker 210.
  • this moving arrangement is shown by a racking handle 283, racking screw 286 and a frame with wheels 289.
  • the operator can move the circuit breaker 210 in switchgear 200.
  • the circuit breaker 210 Upon activation, the circuit breaker 210 moves horizontally towards the monoblock. This causes the circuit breaker pole 213 to move into the compartment in lower portion of the monoblock 260, causing the both sets of movable contacts 216 and 219 of the circuit breaker 210 to engage with the both the sets of stationary contacts 263 and 266 of the monoblock 260 by sliding over them.
  • the gas duct 240 is permanently attached to the switchgear 200, thereby eliminating the vent 175 present in the conventional design.
  • the shutter arrangement 220 prevents both sets of movable contacts 216 and 219 of the circuit breaker 210 from electrically connecting to both the sets of stationary contacts 263 and 266 of the monoblock 260, accidentally.
  • the shutter arrangement comprises a shutter 223 and operating means 226.
  • the two sets of movable contacts 216 and 219 of the said circuit breaker 210, two sets of stationary contacts 263 and 266 of the monoblock 260 and the shutter 223 are located in corresponding relation to each other, wherein the shutter 223 moves to allow the engagement or disengagement of the said two sets of movable contacts 216 and 219 of the circuit breaker 210 and the said two sets of the stationary contacts 263 and 266 of the monoblock 260, in accordance to the relative movement of the circuit breaker 210.
  • the operating means 226 of the shutter arrangement 220 operates the shutter 223 on the basis of the movement of the circuit breaker 210.
  • the operating means 226 consists of shutter guide 227 and operating levers 228. The movement of the shutter 223 is guided by the shutter guide 227. The shutter 223 is moved through the operating levers 228 which are mechanically connected to the circuit breaker 210.
  • the switchgear Due to this novel and inventive construction through the use of monoblock, the switchgear is more compact. By removing the contact arms of the circuit breaker, the cost of material is also reduced, increasing the cost effectiveness of the switchgear. Due to the monoblock, the switchgear gains a modular character to itself, thereby simplifying assembly process. The monoblock assembly can be independently assembled. This also reduces or eliminates incorrect assembly. Similarly, due to the introduction of the monoblock for connection, the need for having the current transformer within close proximity of the circuit breaker is also eliminated. This allows for placing the current transformer in a higher plane so as to increase the cable termination length without increasing the height of the circuit breaker. By reducing the size of the switchgear and by eliminating the contact arms of the circuit breaker, the current carrying path is also reduced. This helps in improving the efficiency, reducing power loss, improving thermal life and reducing material usage.
  • the switchgear is less vulnerable to dust. This helps improve the ingress protection class.
  • the invention provides a compact switchgear which is cost effective, and has current path which is shorter, simple construction, better thermal life management, easy assembly, and better ingress protection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Trip Switchboards (AREA)

Abstract

La présente invention concerne un dispositif de commutation compact présentant une construction plus simplifiée. Le dispositif de commutation selon l'invention comprend un disjoncteur et un monobloc. Le monobloc peut être connecté électriquement au disjoncteur du dispositif de commutation. L'invention concerne également un agencement d'obturateur destiné audit dispositif de commutation compact. L'invention concerne en outre un procédé permettant de faire fonctionner le dispositif de commutation comportant ledit agencement d'obturateur.
EP13771590.0A 2012-07-31 2013-07-31 Dispositif de commutation compact, et agencement d'obturateur associé Withdrawn EP2880728A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN3119CH2012 2012-07-31
PCT/IB2013/001669 WO2014020409A2 (fr) 2012-07-31 2013-07-31 Dispositif de commutation compact, et agencement d'obturateur associé

Publications (1)

Publication Number Publication Date
EP2880728A2 true EP2880728A2 (fr) 2015-06-10

Family

ID=49301539

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13771590.0A Withdrawn EP2880728A2 (fr) 2012-07-31 2013-07-31 Dispositif de commutation compact, et agencement d'obturateur associé

Country Status (4)

Country Link
EP (1) EP2880728A2 (fr)
CN (1) CN104685738A (fr)
SG (1) SG11201406591SA (fr)
WO (1) WO2014020409A2 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0412368A1 (fr) * 1989-08-11 1991-02-13 Hitachi, Ltd. Tableau de commutation de type disjoncteur

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB905425A (en) * 1958-09-22 1962-09-05 Gardy Particip App Improvements in and relating to polyphase current transformers
DE2240492C3 (de) * 1972-08-17 1980-01-31 Krone Gmbh, 1000 Berlin Schaltfeld für Mittelspannungs-Drehstromanlagen
US4950854A (en) * 1989-10-31 1990-08-21 Electric Services, Inc. Vacuum operated circuit breaker apparatus for replacing air-magnetic circuit breaker assemblies
JP3406993B2 (ja) * 1997-09-24 2003-05-19 株式会社戸上電機製作所 閉鎖配電盤のユニット位置表示装置
CN2491991Y (zh) * 2001-08-12 2002-05-15 广东省顺德开关厂有限公司 手车式开关柜
US8477503B2 (en) * 2010-01-05 2013-07-02 Shanghai Guangdian Electric Group Co., Ltd. Switch cabinet connection and combination apparatus and method of manufacturing the same
CN201639181U (zh) * 2010-03-25 2010-11-17 常熟市通用电器厂有限公司 Fc回路高压中置式成套开关柜手车
US8451589B2 (en) * 2010-06-07 2013-05-28 Abd El & Larson Holdings LLC Multi-access switchgear assembly
DE102010046103A1 (de) * 2010-09-21 2012-03-22 Abb Ag Elektrisches Schaltgerät

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0412368A1 (fr) * 1989-08-11 1991-02-13 Hitachi, Ltd. Tableau de commutation de type disjoncteur

Also Published As

Publication number Publication date
WO2014020409A2 (fr) 2014-02-06
WO2014020409A3 (fr) 2014-07-03
CN104685738A (zh) 2015-06-03
SG11201406591SA (en) 2015-02-27

Similar Documents

Publication Publication Date Title
JP4727736B2 (ja) スイッチギヤ
EP2485348B1 (fr) Appareillage de commutation
KR101030290B1 (ko) 고체 절연 모선 스위치 기어
TWI354421B (fr)
US8248760B2 (en) Switch arrangement for an electrical switchgear
US8431845B2 (en) Electrical switching apparatus and levering assembly therefor
US20120175234A1 (en) Switch Unit and Switchgear
US11637414B2 (en) Three phase switchgear using single phase equipment in single casing
US20220209516A1 (en) Enclosure and optimizations
JP5275263B2 (ja) スイッチギヤシステム
JP5026537B2 (ja) スイッチギヤ
CN101965668B (zh) 可配置断路器
JP4333774B2 (ja) 配電用開閉装置
CN108649475A (zh) 一种双母线开关柜
JP2008043181A5 (fr)
CN111884064A (zh) 一种铠装移开式金属封闭开关电力柜及其接线方法
CN201298670Y (zh) 封闭式双母线开关装置
CN108092172B (zh) 一种紧凑型抽出式高压开关柜
EP2880728A2 (fr) Dispositif de commutation compact, et agencement d'obturateur associé
CN103329376B (zh) 真空绝缘开关装置及成型开关的更换方法
CN109301739B (zh) 带电更换低压电缆分支箱内断路器绝缘隔离装置
CN103165334B (zh) 高电流开关装置
CN203589566U (zh) 一种半块功能板的标准型mns低压抽出式开关柜体
CN202455081U (zh) 带隔离母线室的电容器补偿柜
JP6714948B2 (ja) 遮断器及びスイッチギヤ

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20141203

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20170130