EP3928338A1 - Current interrupter system - Google Patents
Current interrupter systemInfo
- Publication number
- EP3928338A1 EP3928338A1 EP20707001.2A EP20707001A EP3928338A1 EP 3928338 A1 EP3928338 A1 EP 3928338A1 EP 20707001 A EP20707001 A EP 20707001A EP 3928338 A1 EP3928338 A1 EP 3928338A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- crankshaft
- circuit breaker
- interrupter
- crank
- interrupter units
- 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
- 230000033001 locomotion Effects 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 11
- 238000005259 measurement Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
-
- 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
- H01H33/42—Driving mechanisms
Definitions
- the invention relates to a circuit breaker system according to the preamble of claim 1.
- the object of the invention is to provide a current interrupter system which has at least two interrupter units of different types that are driven by a common drive system.
- the circuit breaker system according to claim 1 has a serial arrangement of at least two breaker units.
- at least one interrupter unit is a vacuum tube
- the at least two interrupter units are mechanically connected to a drive system.
- the drive system has a drive unit and it is characterized in that there is a crankshaft as the drive shaft which has at least two cranks, the at least two cranks having two crank strokes of different heights.
- crank is understood to mean an eccentricity which is attached to the crankshaft and which runs essentially perpendicularly with respect to the axis of rotation of the crankshaft.
- the cure bel can be almost rod-shaped in the simplest case. In practice, it is usually designed in the form of asymmetrical eccentric disks to avoid imbalances.
- crank is also understood to mean a pair of cranks which are arranged at a distance from one another along the crankshaft and are connected to one another eccentrically with respect to the axis of rotation via a crank pin running essentially parallel to the axis of rotation.
- crank stroke is the eccentricity of the cure belzapfens with respect to the axis of rotation of the crankshaft, the crank pin describing a circular movement around the axis of rotation of the cure belwelle during a rotational movement of the cure belwelle.
- the crank stroke thus also corresponds to the radius of this described circular movement of the crank pin.
- serial arrangement of interrupter units is understood to mean that the interrupter units
- the crankshaft fully pulls a unidirectional movement during an opening process of the interrupter units.
- This has the advantage that the drive can again be designed in a technically simpler manner than in the prior art, since it only has to be rotatable in one direction.
- crankshaft as the drive shaft of the drive system has a further advantage when an opening process of the interrupter units and a subsequent closing process perform a unidirectional movement between 350 ° and 360 ° + 10 °.
- the crankshaft performs an opening and a closing process with one complete revolution, which is preferably 360 °; by setting certain contact excess strokes, it can also be useful that the crankshaft fully rotates that slightly different from the 360 °, i.e. by +/- 10 ° deviates.
- two different interrupter units are mechanically connected to each of the different cranks of the crankshaft, which have a different crank stroke, the two interrupter units differ in that they have different rated voltages.
- the rated voltage of an interrupter unit is the voltage up to which the interrupter unit can interrupt current flows, which are technically approved. In this way, interrupter units with different rated voltages can be connected in series with one another. can be switched, which results in a next higher class of measurement voltage. For this purpose, it is useful to use different interrupter units.
- mechanically connected means that there is a mechanical connection to transmit a force, an impulse or an action between two systems, for example via movable connections such as bearings or joints, but also via fixed connections how material or force-locking connections or combinations of movable and fixed connections can be made.
- the mechanical connection between the crankshaft and an interrupter unit in each case has a crank pin which is arranged between two cranks in such a way that it runs at a distance from an axis of rotation of the crankshaft, the crank pin being surrounded by a plain bearing is, which in turn is arranged on a push rod.
- a structural embodiment makes it possible, please include to convert the rotational movement of the crankshaft into a translatory movement of a moving contact of the interrupter system.
- the push rod is also mechanically connected to the contact bolt; this can, in turn, in particular by a further slide bearing on the
- Push rod done which in turn is attached to a pin on the con tact bolt.
- a push rod described that has a plain bearing at both ends, can also be referred to as a connecting rod.
- the crankshaft is designed in such a way that a radial direction of the crank stroke of two adjacent cranks along the crankshaft is offset by 180 °.
- FIG. 1 shows a circuit breaker system with a drive unit and two different breaker units in the form of vacuum interrupters
- FIG. 2 the circuit breaker system according to FIG. 1 in an open state
- Figure 3 shows a cross section through a crankshaft of the An
- FIG. 4 shows a schematic representation of a current interrupter system with two interrupter units connected in series for three phases, with a total of six interrupter units,
- FIG. 5 shows an analogous schematic representation as in FIG.
- interrupter units arranged offset with respect to a line and crank strokes in radially un different directions.
- a circuit breaker system 2 which on the one hand has a drive system 8 which drives two different interrupter units 4 and 6 together.
- the drive system 8 comprises a drive unit 9 as well as a crankshaft 10.
- the crankshaft 10 is exemplarily mounted on two crankshaft bearings 34 and executes a unidirectional rotary movement along the arrow 20.
- the crankshaft 10 has two cranks 12 or. 14, which belhub 18 and 16 each have a different cure.
- crank 12 is here also a pair of cranks 12 and 12 'or. 14 and 14 'understood, between which a crank pin 24 is arranged.
- the crank pin 24 runs parallel to an axis of rotation 26 of the crankshaft 10.
- crank pin 24 With a rotational movement 20 be the crank pin 24 writes a circular movement about the axis of rotation 26.
- slide bearings 28 are attached, which are connected to a push rod 30 .
- slide bearing 50 At the end of the push rod 30 there is in turn another slide bearing 50 which is connected to a contact pin 32 of the interrupter unit.
- the interrupter units 4, 6 have a contact system
- the contact system 36 which comprise two contacts, a moving contact 38 and a fixed contact 40.
- the contact system 36 is arranged in a vacuum space 44, surrounded by a housing 42.
- the representation according to Figure 1 and 2 can be seen purely schematically, details of the interrupter units 4, 6, which are designed in the form of vacuum switching tubes, are not shown here. represents.
- the moving contact 38 is connected to the contact pin 32 already mentioned, the contact system 36 being opened during a translational movement of the contact pin 32, as is illustrated in FIG.
- the rotational movement 20 of the crankshaft 10 is transmitted through the push rod 30, which is designed in the form of a connecting rod, converted into a translational movement of the contact pin 32 and thus the moving contact 38.
- This kinematic sequence applies equally to both interrupter units 4, 6.
- the serial connection of the two interrupter units 4, 6 is produced by making contact via busbars 48 which are electrically connected to a flexible current band 46, which in turn makes contact with the contact bolt 50.
- a further connection via busbars 48 and current strips 46 is made via the fixed contact 40 and a bolt assigned to it and the moving contact 32 'of the interrupter unit 6.
- This serial arrangement of vacuum interrupters with different measurement voltages adds up the measurement voltage of the entire current interrupter system from the measurement voltages of the individual interrupter units.
- Figure 1 the basic position of the circuit breaker system 2 in the closed state of the interrupter units 4 and 6 is described, the arrow 20, which indicates a unidirectional rotary movement tion 20 of the crankshaft 10, but also shows that the representation in Figure 1 is a dynamic representation that results in a 180 ° rotation along the arrow 20 in the open position of the circuit breaker system 2 according to Figure 2.
- a 360 ° rotation of the crankshaft 10 thus results in the interrupter units 4, 6 being opened once and then closed again.
- a further rotation by 180 ° would in turn result in an opening movement.
- the advantage of the continuous unidirectional movement of the crankshaft 10, driven by the drive unit 9, is that, in addition to the simplified transmission by a single drive system 8, a more cost-effective drive variant for the drive unit 9 can also be selected.
- a technically complex, bidirectional drive movement can be dispensed with, although this is not absolutely necessary.
- the transition from the open position to the closed position of the interrupter units 4, 6, as shown in Figures 1 and 2, can in principle also take place with a bidirectional movement, but a unidirectional movement is only made possible through the use of the crankshaft 10 and leads to the fact that technically less complex drive units 9, for example electric motors or spring feeders with spiral springs, can be used.
- crankshaft 10 In Figure 3 is a cross section through a crankshaft 10 is presented, the cross-sectional profile in the area of a cure bel, cut through a crank pin 24 and a sliding bearing 28.
- the crank which can be designed in the form of the crank 12 or 14, This is an example of an eccentric disk which has a counterweight beyond the axis of rotation 26 of the cure belwelle 10 to avoid imbalances.
- the respectively possible crank stroke 16 or. 18 is illustrated by the double arrow running between the center of the axis of rotation 26 and the center of the crank pin 24.
- three pairs 22 of serially connected breaker units 4 and 6 are arranged on the crankshaft 10.
- a pair 22 of the breaker units 4 and 6 each fulfill the function that has already been described with reference to FIGS. 1 and 2.
- the arrangement of three such structurally identical pairs of interrupter units 4, 6 stands for the three phases of a power network, which must be separated simultaneously by an interrupter unit or here by a pair 22 of interrupter units 4, 6. It is possible to operate all three phases with one drive unit 8, wherein, as already mentioned, each phase has two different interrupter units 4, 6.
- Each pair 22 of interrupter units 4, 6 is in each case with a pair of cranks
- the schematic illustration according to FIG. 5 has an arrangement of three pairs 22 of serially connected interruption units 4, 6.
- two interrupter units 4 or 6 are arranged offset from one another, which means that they are linear along the crankshafts 10 Installation space can be saved, which can bring a decisive cost advantage in many applications in which installation space is scarce.
- the crankshaft 10 according to FIG. 5 is designed in such a way that the cranks 14 and 12 point radially in different directions with respect to the axis of rotation 26, in particular directions offset by 180 °.
- at least every second crank 12 or 14 and the push rod 30 connected to it requires a mechanical deflection mechanism that is not described in more detail in this purely schematic representation according to FIG.
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Transmission Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019204443.3A DE102019204443A1 (en) | 2019-03-29 | 2019-03-29 | Circuit breaker system |
PCT/EP2020/054040 WO2020200565A1 (en) | 2019-03-29 | 2020-02-17 | Current interrupter system |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3928338A1 true EP3928338A1 (en) | 2021-12-29 |
EP3928338B1 EP3928338B1 (en) | 2023-04-05 |
Family
ID=69699839
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20707001.2A Active EP3928338B1 (en) | 2019-03-29 | 2020-02-17 | Current interrupter system |
Country Status (7)
Country | Link |
---|---|
US (1) | US11764011B2 (en) |
EP (1) | EP3928338B1 (en) |
JP (1) | JP7293392B2 (en) |
KR (1) | KR102654112B1 (en) |
CN (1) | CN113906531B (en) |
DE (1) | DE102019204443A1 (en) |
WO (1) | WO2020200565A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020202640A1 (en) * | 2020-03-02 | 2021-09-02 | Siemens Aktiengesellschaft | Drive unit for driving switching contacts of a high-voltage circuit breaker |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4945912B1 (en) * | 1969-04-21 | 1974-12-06 | ||
US3597556A (en) * | 1970-01-16 | 1971-08-03 | Gen Electric | Vacuum-type circuit breaker with force-supplementing means for increasing current-carrying abilities |
US3839612A (en) * | 1973-08-08 | 1974-10-01 | Gen Electric | Vacuum-type circuit breaker comprising series-connected vacuum interrupters within a grounded tank |
CA1091732A (en) * | 1976-04-28 | 1980-12-16 | Westinghouse Electric Corporation | Circuit breaker apparatus including jack shaft support |
DE3300979A1 (en) | 1983-01-12 | 1984-07-12 | Siemens AG, 1000 Berlin und 8000 München | VACUUM SWITCH WITH TWO SWITCHING TUBES PER POL |
ATE80494T1 (en) * | 1987-12-14 | 1992-09-15 | Sprecher Energie Ag | SPRING-LOAD MECHANISM FOR A HIGH-VOLTAGE SWITCH. |
JP2606247B2 (en) | 1988-01-09 | 1997-04-30 | 株式会社明電舎 | Gas insulated circuit breaker |
JP2610299B2 (en) * | 1988-05-16 | 1997-05-14 | 株式会社東芝 | Vacuum circuit breaker |
FR2682807B1 (en) * | 1991-10-17 | 1997-01-24 | Merlin Gerin | ELECTRIC CIRCUIT BREAKER WITH TWO VACUUM CARTRIDGES IN SERIES. |
DE59401336D1 (en) * | 1994-01-12 | 1997-01-30 | Gec Alsthom T & D Ag | Multi-pole switch for staggered switching on or off |
GB2286725A (en) * | 1994-02-18 | 1995-08-23 | Brian Mckean | Sequential isolating circuit breaker |
DE4405206A1 (en) * | 1994-02-18 | 1995-08-24 | Abb Research Ltd | Switching device |
DE4419380C1 (en) | 1994-05-30 | 1995-10-19 | Siemens Ag | Circuit breaker module |
FR2738389B1 (en) * | 1995-08-31 | 1997-10-24 | Schneider Electric Sa | HIGH VOLTAGE HYDRAULIC CIRCUIT BREAKER |
EP0817225A1 (en) * | 1996-06-26 | 1998-01-07 | GEC Alsthom T&D AG | Multiphase circuit breaker, in particular for high voltage |
FR2763740B1 (en) * | 1997-05-26 | 1999-07-16 | Gec Alsthom T & D Ag | SPRING DRIVE MECHANISM FOR A SWITCHING APPARATUS, IN PARTICULAR A CIRCUIT BREAKER |
JP4297549B2 (en) | 1999-03-17 | 2009-07-15 | 三菱電機株式会社 | Switchgear |
FR2821696B1 (en) * | 2001-03-01 | 2003-04-25 | Alstom | HIGH VOLTAGE CIRCUIT BREAKER HAVING A SPRING DRIVE WITH AN ADDITIONAL ENERGY RECOVERY SPRING |
ES2654037T3 (en) * | 2003-12-02 | 2018-02-12 | Schneider Electric Energy Manufacturing Italia S.R.L. | Switching device / circuit breaker for electrical substations |
JP4945912B2 (en) | 2004-03-16 | 2012-06-06 | トヨタ自動車株式会社 | Fuel cell system |
JP5101331B2 (en) | 2008-02-15 | 2012-12-19 | 株式会社東芝 | Vacuum circuit breaker |
US8717716B2 (en) * | 2009-11-16 | 2014-05-06 | Abb Technology Ag | Device and method to break the current of a power transmission or distribution line and current limiting arrangement |
EP2421017B1 (en) * | 2010-08-13 | 2017-10-04 | ABB Schweiz AG | Medium voltage circuit breaker arrangement operated by special transmission means |
JP6093627B2 (en) * | 2013-04-10 | 2017-03-08 | 株式会社日立産機システム | Switchgear or switchgear |
EP3167469B1 (en) * | 2014-09-04 | 2019-08-14 | Siemens Aktiengesellschaft | Disconnector switch |
DE102019204441A1 (en) | 2019-03-29 | 2020-10-01 | Siemens Aktiengesellschaft | High voltage circuit breaker system |
-
2019
- 2019-03-29 DE DE102019204443.3A patent/DE102019204443A1/en active Pending
-
2020
- 2020-02-17 WO PCT/EP2020/054040 patent/WO2020200565A1/en unknown
- 2020-02-17 EP EP20707001.2A patent/EP3928338B1/en active Active
- 2020-02-17 KR KR1020217034684A patent/KR102654112B1/en active IP Right Grant
- 2020-02-17 US US17/599,677 patent/US11764011B2/en active Active
- 2020-02-17 JP JP2021557469A patent/JP7293392B2/en active Active
- 2020-02-17 CN CN202080031907.8A patent/CN113906531B/en active Active
Also Published As
Publication number | Publication date |
---|---|
JP2022526532A (en) | 2022-05-25 |
JP7293392B2 (en) | 2023-06-19 |
CN113906531B (en) | 2024-03-08 |
CN113906531A (en) | 2022-01-07 |
EP3928338B1 (en) | 2023-04-05 |
US20220189717A1 (en) | 2022-06-16 |
WO2020200565A1 (en) | 2020-10-08 |
KR20210140761A (en) | 2021-11-23 |
US11764011B2 (en) | 2023-09-19 |
KR102654112B1 (en) | 2024-04-04 |
DE102019204443A1 (en) | 2020-10-01 |
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