EP2619779A1 - Gasisolierter hochspannungsschalter zum unterbrechen grosser ströme - Google Patents
Gasisolierter hochspannungsschalter zum unterbrechen grosser strömeInfo
- Publication number
- EP2619779A1 EP2619779A1 EP11752205.2A EP11752205A EP2619779A1 EP 2619779 A1 EP2619779 A1 EP 2619779A1 EP 11752205 A EP11752205 A EP 11752205A EP 2619779 A1 EP2619779 A1 EP 2619779A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- housing
- switch
- arcing
- gas
- 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
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 230000003628 erosive effect Effects 0.000 claims description 14
- 230000000694 effects Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 13
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 7
- 239000012212 insulator Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000004904 shortening Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229910018503 SF6 Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/0015—Means for testing or for inspecting contacts, e.g. wear indicator
-
- 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
- H01H33/027—Integrated apparatus for measuring current or voltage
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/04—Means for indicating condition of the switching device
- H01H2071/044—Monitoring, detection or measuring systems to establish the end of life of the switching device, can also contain other on-line monitoring systems, e.g. for detecting mechanical failures
-
- 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
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
Definitions
- the present invention relates to a gas-insulated
- Switches of the aforementioned type are designed as a circuit breaker and have a rated current carrying capacity of at least a few kA in the voltage range of more than a few kV. In general, these switches are called
- a current path containing the contacts current path serves to guide the majority of the
- a switch of the type mentioned is described in DE U 20 2007 018 709 U1.
- the contact erosion of the arcing contacts by means of sensors and a signal detection unit during operation of the switch, ie with the contact arrangement is closed, and the user of the switch is informed by a connected to the signal detection unit display on the caused by Maisabbrand current state of the arcing contacts , If a time interval is undershot, which is a critical value of the reduced by burned length of the
- a movable of the two contacts is rigidly connected to a arranged outside the vessel rod of a driving force transmitting gear.
- the contact erosion during operation of the switch is indicated in each case by means of an indicator which is attached directly to the rod or to an arm of a two-armed lever of the gearbox which is articulated to the drive rod. Since the two contacts at the burn-endangered places head to head
- the indicator shows the sum of the change in length of the two contacts and thus the remaining life of the switch in response to the position of the driving force on the contact arrangement transmitting gear.
- the concentration of a volatile marker substance is included, which when released by a gas chromatograph can be detected and their concentration should behave in proportion to the burn on the contacts.
- FR2346837 describes a circuit breaker having a single contact arrangement and a device for detecting erosion of the contacts.
- Contact arrangement has two contacts, which when closed
- Kontak 3:1 is movable and is driven by the switch drive via lever.
- the switch drive also moves a directly connected to the drive and located outside the housing lever, which reflects the rotation angle of the drive axle and thus indirectly the position of the movable
- the invention has for its object to provide a gas-insulated switch of the type mentioned, in which certain by devisabbrand the arcing contacts
- Residual life is detected and displayed by simple mechanical means.
- gas-insulated high voltage switch serves to interrupt large currents and has a
- a contact arrangement comprising two contact pieces movable relative to each other along a respective axis, each having a rated current and an arcing contact, a drive acting on a first of both contact pieces, and a device for detecting and indicating the contact erosion of the two arcing contacts with an outside caused by the action of arcing the housing arranged display.
- the switch according to the invention is therefore independent of the switch drive with the contact arrangement closed, i. Under operating conditions, detected by contact erosion shortening of the arcing contacts with simple mechanical means and this shortening and thus also the contact erosion respectively. the remaining life of the switch displayed by means of a suitably arranged and formed gear outside the housing. Since this switch is a switch with a rated current path and a power path connected in parallel, it is essential for the switching behavior that the arc contacts turn off within a certain time interval after opening the
- the transmission can have a gas-tight guided through the wall of the housing shaft, whose lying within the housing end with the drive member and its outside of the housing end is connected to a display element of the display.
- a switch can be made simple and economical and is also characterized by a good gas tightness.
- the drive element is connected as rigid with the shaft
- Resetting force is applied and is the second arm of the lever with the contact assembly closed on the actuator and when open
- the transmission may have a housing arranged in the bearing block, in which the actuating member and the restoring force transmitting sliding body are mounted axially displaceable and in which the shaft is pivotally mounted.
- the drive member as a one-armed, with the return force
- Restoring force can be achieved by means of a leg spring supported on the shaft, which is held on the housing.
- this embodiment of the switch can advantageously have an integrated into the transmission, arranged in the housing bearing block, in which the shaft is pivotable and - in contrast to the embodiment with the two-armed lever - only the actuator is mounted axially displaceable.
- FIG. 1 shows a plan view of a guided along an axis A section through a first embodiment of the high-voltage switch according to the invention, in which the contact arrangement of the switch is closed,
- FIG. 2 shows an enlargement of a portion of the switch of FIG.
- FIG. 3 is a plan view according to Figure 1, but in which the contact arrangement of
- FIG. 4 shows an enlargement of a portion of the switch shown in FIG. 3,
- V - V out shows a view guided in the direction of arrow on a longitudinal V - V out
- FIG. 6 shows a plan view of a section taken along the axis A through a second embodiment of the high-voltage switch according to the invention, in which the contact arrangement of the switch is closed,
- FIG. 8 shows an enlargement of a portion of the switch according to FIG. 6, in which, however, the contact arrangement of the switch is open, and FIG
- High-voltage circuit breakers are each designed as a generator switch and are typically designed for a rated voltage of 24 kV, a rated current of 6.3 kA, a permissible short-circuit current of 63 kA and a nominal frequency of 50/60 hertz.
- Both embodiments have a housing 10 which is filled with an arc-containing insulating gas, for example based on sulfur hexafluoride and / or nitrogen and / or carbon dioxide, of generally up to a few bar pressure.
- the housing has a hollow cylindrical insulator 1 1 and two each serving as a power connection metal hollow body 12, 13, between which the insulator is flattened gas-tight.
- In the housing 10 is one with the
- Power terminals 12, 13 provided electrically conductive contact arrangement, the two along an axis A relative to each other movable
- the contact piece 20 is connected to a drive, not shown, and - as indicated by a double arrow D - when closing along the axis A upwards and when opening along the axis A down.
- the contact piece 20 has, in an axially symmetrical arrangement, a tubular arcing contact 21 and a contact surrounding this contact at a distance
- the contact piece 30 in axially symmetrical arrangement also includes a tubular arc-shaped contact 31 and a surrounding the arcing contact 31 spaced contact current contact 32.
- the arcing contact 31 is slidably mounted relative to the rated current contact 32 along the axis A and is with the switch closed his arc-trained free end by means of a prestressed spring 33 to form a sufficient contact force and a shock point S on the also supported arc-free free end of the arcing contact 21 supported.
- Arc contacts 21, 31 feet, and flows from one of the arc
- the switching piece 20 is in a
- the contact piece 30 has a contact carrier 34 in the form of a pot.
- the contact carrier is integrated at its acting as an edge of the pot end in serving as a power connection hollow body 13. At the bottom of the
- a hollow cylinder 35 is arranged, which serves for the axial guidance of the arcing contact 31 and in which the spring 33 is mounted.
- Arc contact 31 carries at its upper end as a rod formed, axially aligned actuator 50, which passes through a shield 36 into a formed as a metal lid upper portion 15 of
- the actuator 50 cooperates with a device M, which detects the current, determined by the position of the actuator 50 state of the arcing contacts 21, 31 and displays. The position of the
- Actuator 50 serves as a measure of the erosion and corrosive effect of the switching arc caused contact erosion.
- the detection and display device M includes an activatable by the actuator 50 gear 60 and a mechanically operated by the transmission, outside the housing 10, respectively.
- housing 70 disposed display 70 shown only in Figures 5 and 9). From the figures 2, 4, 7 and 8 can be seen particularly clearly that the
- Housing portion 15 carries a fixed bearing block 61 of the transmission 60.
- This bearing block serves to guide one of the displaceable along the axis A actuator 50 to the other but also the storage of a particular apparent from Figures 5 and 9 shaft 62 of the transmission 60.
- the transmission further includes a drive member 63 which is rigid with the shaft 62nd connected is. It can also be seen from FIGS. 5 and 9 that the shaft 62 in turn is guided in a gastight manner through the housing section 15 with the aid of a seal 64 and directly there with a movable display element 71 of the display 70, for example via a screw connection, or indirectly, for example via another gearbox is connected. Since the shaft 62 is merely pivoted, but not displaced, the seal 64 can be easily realized with the help of one or more commercial sealing rings and thus easily a high
- the switch When the switch is closed, the current to be interrupted predominantly from the terminal 12 via the hollow cylinder 14, a slide contact, not shown, the rated current contacts 22, 32 led to the contact carrier 34 and serving as a power connection hollow body 13. A smaller part of the current to be interrupted flows in a parallel to the rated current contacts 22, 32 arranged, the connecting wall 23, the arcing contacts 21, 31, a sliding contact, not shown, and the hollow cylinder 35 containing current path to terminal 13.
- the prestressed spring 33 provides the impact point S the necessary contact force.
- Heating volume 24 expands. When approaching a zero crossing of the current to be disconnected, the gas stored in the heating volume 24 blows - possibly supported by compressed insulating gas from the
- Switching are positioned so unfavorable that the arc contacts during switching off not within a certain time interval after opening the rated current contacts separate resp. fail to close at power on within this time interval before the rated current contacts, so a faulty switching action is avoided and the user at the same time
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11752205.2A EP2619779B1 (de) | 2010-09-24 | 2011-09-01 | Gasisolierter hochspannungsschalter zum unterbrechen grosser ströme |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10179319 | 2010-09-24 | ||
PCT/EP2011/065094 WO2012038227A1 (de) | 2010-09-24 | 2011-09-01 | Gasisolierter hochspannungsschalter zum unterbrechen grosser ströme |
EP11752205.2A EP2619779B1 (de) | 2010-09-24 | 2011-09-01 | Gasisolierter hochspannungsschalter zum unterbrechen grosser ströme |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2619779A1 true EP2619779A1 (de) | 2013-07-31 |
EP2619779B1 EP2619779B1 (de) | 2014-03-19 |
Family
ID=43480718
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11752205.2A Active EP2619779B1 (de) | 2010-09-24 | 2011-09-01 | Gasisolierter hochspannungsschalter zum unterbrechen grosser ströme |
Country Status (4)
Country | Link |
---|---|
US (1) | US9177740B2 (de) |
EP (1) | EP2619779B1 (de) |
CN (1) | CN103119677B (de) |
WO (1) | WO2012038227A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103247870A (zh) * | 2013-05-20 | 2013-08-14 | 中国能建集团装备有限公司南京技术中心 | 一种gil过渡段导体连接结构 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9305726B2 (en) | 2014-08-27 | 2016-04-05 | Eaton Corporation | Arc extinguishing contact assembly for a circuit breaker assembly |
FR3039924B1 (fr) * | 2015-08-07 | 2019-05-10 | Supergrid Institute | Appareil de coupure mecanique d'un circuit electrique |
DE102017216275A1 (de) * | 2017-09-14 | 2019-03-14 | Siemens Aktiengesellschaft | Anordnung und Verfahren zum Schalten hoher Ströme in der Hoch-, Mittel- und/oder Niederspannungstechnik |
CN114496676B (zh) * | 2020-10-26 | 2024-06-18 | 西门子能源国际公司 | 弧触头组件以及断路器 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2346837A1 (fr) * | 1976-03-30 | 1977-10-28 | Merlin Gerin | Procede et dispositif indicateur d'usure d'un disjoncteur electrique a enceinte etanche scellee |
CN1019431B (zh) * | 1988-05-24 | 1992-12-09 | 梅兰日兰公司 | 密封外壳中压电气开关 |
US6002560A (en) | 1998-09-02 | 1999-12-14 | Eaton Corporation | Circuit breaker contact wear indicator |
DE19958645C5 (de) * | 1999-12-06 | 2011-05-26 | Abb Technology Ag | Hybridleistungsschalter |
JP2006310133A (ja) | 2005-04-28 | 2006-11-09 | Mitsubishi Electric Corp | 真空遮断器およびその接点のスロークローズ方法並びにそれを用いた接点の摩耗量測定方法および接点間のギャップ長さ設定方法 |
CN2879397Y (zh) * | 2006-03-04 | 2007-03-14 | 吉林龙鼎电气股份有限公司 | 具有触头磨损厚度检测装置的真空断路器 |
CN201302605Y (zh) | 2006-06-26 | 2009-09-02 | Abb技术有限公司 | 能够确定和显示接触部烧损的大功率开关 |
JP5032091B2 (ja) * | 2006-10-12 | 2012-09-26 | 株式会社東芝 | ガス絶縁開閉装置及びガス絶縁開閉装置用部品のアーク損傷検出方法 |
-
2011
- 2011-09-01 CN CN201180045865.4A patent/CN103119677B/zh active Active
- 2011-09-01 WO PCT/EP2011/065094 patent/WO2012038227A1/de active Application Filing
- 2011-09-01 EP EP11752205.2A patent/EP2619779B1/de active Active
-
2013
- 2013-03-25 US US13/849,686 patent/US9177740B2/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2012038227A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103247870A (zh) * | 2013-05-20 | 2013-08-14 | 中国能建集团装备有限公司南京技术中心 | 一种gil过渡段导体连接结构 |
CN103247870B (zh) * | 2013-05-20 | 2015-03-18 | 中国能建集团装备有限公司南京技术中心 | 一种gil过渡段导体连接结构 |
Also Published As
Publication number | Publication date |
---|---|
US20130213936A1 (en) | 2013-08-22 |
WO2012038227A1 (de) | 2012-03-29 |
CN103119677B (zh) | 2016-06-15 |
EP2619779B1 (de) | 2014-03-19 |
US9177740B2 (en) | 2015-11-03 |
CN103119677A (zh) | 2013-05-22 |
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