EP1618577A4 - Vacuum circuit breaker - Google Patents
Vacuum circuit breakerInfo
- Publication number
- EP1618577A4 EP1618577A4 EP04723435A EP04723435A EP1618577A4 EP 1618577 A4 EP1618577 A4 EP 1618577A4 EP 04723435 A EP04723435 A EP 04723435A EP 04723435 A EP04723435 A EP 04723435A EP 1618577 A4 EP1618577 A4 EP 1618577A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- circuit breaker
- vacuum circuit
- contact
- breaker according
- traction
- 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.)
- Granted
Links
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
- H01H33/666—Operating arrangements
- H01H33/6662—Operating arrangements using bistable electromagnetic actuators, e.g. linear polarised electromagnetic actuators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/58—Electric connections to or between contacts; Terminals
- H01H1/5833—Electric connections to or between contacts; Terminals comprising an articulating, sliding or rolling contact between movable contact and terminal
-
- 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
- H01H33/6606—Terminal arrangements
- H01H2033/6613—Cooling arrangements directly associated with the terminal arrangements
-
- 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
- H01H33/02—Details
- H01H33/24—Means for preventing discharge to non-current-carrying parts, e.g. using corona ring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
Definitions
- the invention is related to electrical engineering, more particularly to vacuum circuit breaker constructions.
- VAQC vacuum arc - quenching chamber
- the closest in design is the vacuum circuit breaker of TEL line. having drives in segregated - phase arrangement with magnetic latch and synchronizing shaft [2].
- Disadvantages of this design include considerable length of traction insulator, relatively high resistance of movable conducting element (flexible current collector), complexity of magnetic drive system, low current parameters due to hindered natural cooling of contact terminals, difficulty in manual deenergization and remote mechanical indication of main contact positions, difficulties in hooking up socket contacts and designing interlock mechanisms for various types of sub-station projects.
- the invention solves the problem of providing a vacuum circuit breaker having reduced dimensions and cost, while increasing main performance parameters.
- the technical effect of applying the invention as claimed includes: reduction in traction insulator length, reduction in resistance of movable conducting element, simplification and cost reduction of the drive magnetic system, increase in current parameters of the vacuum circuit breaker due to improvement in cooling contact terminals, reduction of the force required for manual deenergization, solution of the problem of remote mechanical indication for main contacts, hooking up socket contacts and their simplified designs, facilitation of the task of hooking up interlock mechanisms.
- the vacuum circuit breaker is characterized in that the traction insulation therein is embodied in such a way that component parts energized by different potentials are covered with insulation, immovable part of the insulation being embodied with a tubular fragment located coaxially inside the insulation sleeve, which is a part of the traction insulator, and resilient conductive spirals are used as movable conducting elements, having a possibility of rolling between surfaces, at least one of which possesses teeth, with the teeth oriented in the direction of motion, two convolutions of said spirals being located between the teeth, and drive magnetic systems constitute two bowl - shaped components made of high - coercivity material with a coil located inside, one bowl - shaped component being attached to the circuit breaker base, the other being attached to the traction insulator, and contact terminals are made of aluminium alloy using extrusion process followed by subsequent mechanical finishing, and the manual deenergization generator constitutes a closed magnetic system having a possibility of mechanical opening thereof, comprising permanent magnet and coil electrical
- the essence of the invention consists in the fact that the traction insulator and immovable insulation tubular fragment provide labyrinth air-gap between high potential and the earth in such a way that the breakdown path in the air has segments directed oppositely to the direction of the electrical field.
- Spiral conducting elements rolling in the course of vacuum circuit breaker operation between movable and immovable surfaces provide a permanent multiple - point contact because each half - turn is a separate conductor, which makes it possible to reach low values of transient resistance.
- the drive magnetic system consisting of two bowl - shaped component parts made of high - coercivity material makes it possible to implement a simple and reliable drive with magnetic latch.
- FIG. 1 The general layout of the vacuum circuit breaker is presented in Fig. 1 , the plane section for a module of one of the phases is presented for the vacuum circuit breaker in enabled position in Fig. 2, and for the vacuum circuit breaker in disabled position in Fig. 3. the contact terminals are shown in Fig. 4. the principle of contacting for the spiral current collector in cases of one and two toothed surfaces is presented in Fig. 5 and Fig. 6 accordingly, the plane section of the manual deenergization generator is provided in Fig. 7, the construction design of a socket contact is presented in Fig. 8.
- the vacuum circuit breaker comprises phase modules mounted on metal base 1 , inside which drives with magnetic latch are situated, comprising stator 2. armature 3 and coil 4, opening spring 5, synchronizing 6 and interlock 7 shafts, block contacts. Cam 8 is situated at the end of interlock shaft 7.
- the phase modules comprise supporting insulators 9, with vacuum chambers 10 embedded in silicone rubber positioned inside, contact terminals 1 1 , 12, compression spring 13 and traction insulators 14.
- Drive stator 2 faced to contact terminal 1 1 is covered with hard insulation 15 with the tubular fragment 16.
- Spiral conducting elements 17 are situated in the clearance between contact terminal 1 1 and movable contact bush 18.
- Indicator of contact positions 19 is connected with synchronizing shaft 6 with the encapsulated wire shaft.
- Manual deenergization generator 20 with armature 21 is electrically connected with windings of drive coils 4.
- Socket contacts 22 comprise separators 23, lamels 24 and plate springs 25.
- the device operates in the following way.
- a current pulse is provided to drive coils 4, closing stator 2 and armature 3 occurs, which is accompanied by compression of opening 5 and compression 13 springs, and closing contacts of vacuum chambers 10 occurs.
- Stator 2 and armature 3 may be in closed position infinitely, because they are made of high - coercivity material, retaining therein the residual magnetic flux.
- a negative - sequence current pulse is provided to coils 4, "resetting "1 of the magnetic latch from the drive occurs, and by the action of springs 5 and 1 3, the drive returns to the position presented in Fig. 3, contacts of vacuum chambers 10 are disconnected.
- the synchronizing shaft turns to a certain angle, moving the indicator 1 from one position to another.
- the shaft turn brings about actuation of block contacts (not shown in the Fig. 3).
- block contacts not shown in the Fig. 3
- spiral conducting elements 17 roll between elements 18 and 1 1 , ensuring permanent contact between them.
- Forces of contact pressures are shown by arrows in Fig. 5 and Fig. 6 for turns of resilient spiral conducting elements in cases of one (Fig. 5) or two (Fig. 6) toothed surfaces.
- Fig. 2 The principle of labyrinth insulation is shown in Fig. 2, wherein possible path of the breakdown in air between terminal 1 1 and component parts energized by the earth potential is indicated by arrows. While working power is lacking, manual deenergization may be performed using manual deenergization generator 20 by moving its armature 21 , resulting in opening the magnetic system enabling the permanent magnet, and inducing a current pulse in the coil of manual deenergization generator 20. fed to drive coils 4, leading to "resetting" of the latter from the magnetic latch.
- Manual deenergization also may be performed by mechanical disconnection of stator 2 from armature 3 through turning interlock shaft 7, which detaches armature 3 from stator 2 with its cam.
- Turning of the interlock shaft 7 is performed by 90°, and its design is such that it may be situated only in one of two stable positions of Fig. 2 and Fig. 3.
- Fig. 2 to the position of Fig. 3 is accompanied by disconnecting drive circuits (electrical interlocking, not shown in the Fig. 3).
- Multiple contact spiral current collector 17 enables obtaining low values of transient resistance, unobtainable for other designs of similar dimensions.
- Manual deenergization generator 20 and indicator of contact position 19 may be mounted in any convenient place because they are not in a rigid mechanical connection with the vacuum circuit breaker.
- interlock shaft makes it possible to develop simple and reliable interlock systems for any type of factory - assembled distribution devices.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
- Gas-Insulated Switchgears (AREA)
- Keying Circuit Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2003108296/09A RU2249874C2 (en) | 2003-03-26 | 2003-03-26 | Vacuum switch |
PCT/RU2004/000114 WO2004086437A1 (en) | 2003-03-26 | 2004-03-25 | Vacuum circuit breaker |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1618577A1 EP1618577A1 (en) | 2006-01-25 |
EP1618577A4 true EP1618577A4 (en) | 2006-08-02 |
EP1618577B1 EP1618577B1 (en) | 2009-03-25 |
Family
ID=33095916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04723435A Expired - Lifetime EP1618577B1 (en) | 2003-03-26 | 2004-03-25 | Vacuum circuit breaker |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP1618577B1 (en) |
CN (1) | CN100375211C (en) |
AT (1) | ATE426910T1 (en) |
DE (1) | DE602004020206D1 (en) |
HK (1) | HK1093379A1 (en) |
RU (1) | RU2249874C2 (en) |
UA (1) | UA79370C2 (en) |
WO (1) | WO2004086437A1 (en) |
ZA (1) | ZA200508667B (en) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006041377B3 (en) * | 2006-08-29 | 2007-12-27 | Siemens Ag | Armature for circuit breaker, has connecting unit made of material with high electrical conductivity, and cooling body made of material with high thermal conductivity, where cooling body encloses connecting unit in form-fit manner |
DE102006042101B4 (en) * | 2006-09-07 | 2008-09-25 | Switchcraft Europe Gmbh | Vacuum switch for medium and high voltages |
FR2920251B1 (en) * | 2007-08-23 | 2009-11-13 | Areva T & D Sa | CUTTING DEVICE FOR ELECTRICAL SWITCHING EQUIPMENT |
JP5215238B2 (en) * | 2009-05-28 | 2013-06-19 | 三菱電機株式会社 | Breaker |
EP2461338B2 (en) * | 2010-12-03 | 2017-03-01 | ABB Schweiz AG | Circuit breaker arrangement for medium voltage to high voltage applications |
FR2971080B1 (en) * | 2011-02-02 | 2013-03-01 | Alstom Grid Sas | VACUUM BULB DEVICE COMPRISING A LOCKING MEANS |
CN102306589B (en) * | 2011-05-31 | 2014-01-01 | 北京博瑞莱智能科技有限公司 | Low-pressure permanent magnetic vacuum load switch |
CN102306585B (en) * | 2011-07-15 | 2013-11-06 | 蒋通军 | Remote control and manual dual-purpose electrical high-voltage safety switch |
US8729985B2 (en) | 2012-01-23 | 2014-05-20 | Electro-Mechanical Corporation | Switchgear visible disconnect mechanical interlock |
US8729416B2 (en) | 2012-01-23 | 2014-05-20 | Electro-Mechanical Corporation | Circuit breaker remote tripping |
US9070517B2 (en) | 2012-08-13 | 2015-06-30 | Electro-Mechanical Corporation | Vacuum interrupter and linear disconnect switch |
RU2521609C2 (en) * | 2012-11-01 | 2014-07-10 | Открытое акционерное общество "Всероссийский научно-исследовательский проектно-конструкторский и технологический институт электромашиностроения" | Vacuum switch |
CN102915870B (en) * | 2012-11-13 | 2014-11-26 | 宁夏力成电气集团有限公司 | E-shaped mono-stability permanent magnet mechanism with closed magnetic circuit |
RU2551443C2 (en) * | 2013-02-13 | 2015-05-27 | Общество с ограниченной ответственностью "Астер Электро" | Modular vacuum circuit breaker |
CN103367023B (en) * | 2013-06-17 | 2015-12-02 | 北海银河产业投资股份有限公司 | Full insulation vacuum breaker polar post |
RU2545163C1 (en) * | 2013-10-02 | 2015-03-27 | Общество с ограниченной ответственностью "Научно-производственная фирма "Радиус" | Vacuum circuit breaker |
US20150332883A1 (en) * | 2014-05-14 | 2015-11-19 | Eaton Corporation | Electrical switching apparatus and linear actuator assembly therefor |
GB2527800A (en) * | 2014-07-02 | 2016-01-06 | Eaton Ind Netherlands Bv | Circuit breaker |
IT201700020449A1 (en) * | 2017-02-23 | 2018-08-23 | Giampietro Tosi | VACUUM SWITCH UNIT WITH MEDIUM VOLTAGE DISCONNECTOR |
RU2684175C1 (en) * | 2018-05-17 | 2019-04-04 | Акционерное общество "Радио и Микроэлектроника" | Three-phase vacuum circuit breaker |
US10825625B1 (en) | 2019-06-07 | 2020-11-03 | Smart Wires Inc. | Kinetic actuator for vacuum interrupter |
RU2721790C1 (en) * | 2019-09-04 | 2020-05-22 | Евгений Юрьевич Парамонов | Mechanism for manual disconnection of drives of high-voltage vacuum circuit breaker |
RU2756294C1 (en) * | 2020-11-05 | 2021-09-29 | Акционерное Общество "Электротехнические заводы "Энергомера" | Mechanism for manual disconnection of the drive of a high-voltage vacuum circuit breaker |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2320744A1 (en) * | 1973-04-25 | 1974-11-21 | Driescher Spezialfab Fritz | MEDIUM VOLTAGE DISTRIBUTOR |
US4434331A (en) * | 1980-02-04 | 1984-02-28 | Kabushiki Kaisha Meidensha | Vacuum power interrupting device |
US5597992A (en) * | 1994-12-09 | 1997-01-28 | Cooper Industries, Inc. | Current interchange for vacuum capacitor switch |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57147829A (en) * | 1981-03-06 | 1982-09-11 | Tokyo Shibaura Electric Co | Vacuum breaker |
SU1552250A1 (en) * | 1987-11-24 | 1990-03-23 | Украинское Отделение Всесоюзного Государственного Проектно-Изыскательского И Научно-Исследовательского Института "Сельэнергопроект" | Switch with electromagnetic actuator |
GB8819166D0 (en) * | 1988-08-12 | 1988-09-14 | Ass Elect Ind | Magnetic actuator & permanent magnet |
RU2020631C1 (en) * | 1992-04-02 | 1994-09-30 | Малое внедренческое предприятие "Таврида Электрик" | Tel modular series vacuum circuit breaker |
CN2149681Y (en) * | 1993-02-16 | 1993-12-15 | 吉林电气化高等专科学校 | High-tension Vacuum switch |
-
2003
- 2003-03-26 RU RU2003108296/09A patent/RU2249874C2/en active IP Right Revival
-
2004
- 2004-03-25 EP EP04723435A patent/EP1618577B1/en not_active Expired - Lifetime
- 2004-03-25 CN CNB2004800144695A patent/CN100375211C/en not_active Expired - Lifetime
- 2004-03-25 AT AT04723435T patent/ATE426910T1/en not_active IP Right Cessation
- 2004-03-25 UA UAA200510009A patent/UA79370C2/en unknown
- 2004-03-25 DE DE602004020206T patent/DE602004020206D1/en not_active Expired - Fee Related
- 2004-03-25 WO PCT/RU2004/000114 patent/WO2004086437A1/en active Application Filing
-
2005
- 2005-10-25 ZA ZA200508667A patent/ZA200508667B/en unknown
-
2006
- 2006-12-27 HK HK06114174A patent/HK1093379A1/en not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2320744A1 (en) * | 1973-04-25 | 1974-11-21 | Driescher Spezialfab Fritz | MEDIUM VOLTAGE DISTRIBUTOR |
US4434331A (en) * | 1980-02-04 | 1984-02-28 | Kabushiki Kaisha Meidensha | Vacuum power interrupting device |
US5597992A (en) * | 1994-12-09 | 1997-01-28 | Cooper Industries, Inc. | Current interchange for vacuum capacitor switch |
Also Published As
Publication number | Publication date |
---|---|
EP1618577B1 (en) | 2009-03-25 |
ZA200508667B (en) | 2006-10-25 |
WO2004086437A1 (en) | 2004-10-07 |
EP1618577A1 (en) | 2006-01-25 |
RU2249874C2 (en) | 2005-04-10 |
CN1795520A (en) | 2006-06-28 |
ATE426910T1 (en) | 2009-04-15 |
DE602004020206D1 (en) | 2009-05-07 |
CN100375211C (en) | 2008-03-12 |
HK1093379A1 (en) | 2007-03-02 |
UA79370C2 (en) | 2007-06-11 |
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