WO2018192741A1 - Dispositif de logement pour tubes commutateurs à vide - Google Patents

Dispositif de logement pour tubes commutateurs à vide Download PDF

Info

Publication number
WO2018192741A1
WO2018192741A1 PCT/EP2018/057466 EP2018057466W WO2018192741A1 WO 2018192741 A1 WO2018192741 A1 WO 2018192741A1 EP 2018057466 W EP2018057466 W EP 2018057466W WO 2018192741 A1 WO2018192741 A1 WO 2018192741A1
Authority
WO
WIPO (PCT)
Prior art keywords
openings
base
receiving device
switching device
receiving
Prior art date
Application number
PCT/EP2018/057466
Other languages
German (de)
English (en)
Inventor
Stefan Kern
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to EP18716923.0A priority Critical patent/EP3593373B1/fr
Priority to ES18716923T priority patent/ES2926450T3/es
Publication of WO2018192741A1 publication Critical patent/WO2018192741A1/fr

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
    • H01H33/6606—Terminal arrangements
    • 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
    • H01H9/52—Cooling of switch parts
    • 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
    • H01H9/52—Cooling of switch parts
    • H01H2009/526—Cooling of switch parts of the high voltage 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
    • H01H33/6606—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
    • H01H33/60—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
    • H01H2033/6665—Details concerning the mounting or supporting of the individual vacuum bottles

Definitions

  • the present invention relates to an improved recording ⁇ device for vacuum interrupters and a switchgear with such a recording device.
  • the warming is the limiting factor in the design ei ⁇ ner switchgear for a specific rated current, since be agreed ⁇ , predetermined temperatures at stromur ⁇ Governing components may not be exceeded by standards.
  • the vacuum interrupter which is a central component of modern switchgear, causes a considerable proportion of the total power loss due to its resistance.
  • the power dissipation significantly discharged via the mobile and the fixed contact and it comes in these areas without ⁇ avoidable for the formation of hot spots.
  • a unipolar encapsulated switchgear with vertically ⁇ orderly vacuum interrupter - as shown in Fig. 1 in detail - accumulates the heat generated by power loss (indicated by arrow 3), since the Consunrich ⁇ device 1 with base 2 for receiving the vacuum interrupter 20 at the same time fixed electrical contact and mechanical connection point to the housing 40, which must be electrically isolated. For this reason, only limited heat can be dissipated by means of heat conduction in Rich ⁇ tion housing 40 from the base 2 and theracvor ⁇ direction 1, which limits the system rating.
  • a Recordin ⁇ mevorraum a switching device which has a receiving opening for receiving a vacuum interrupter, as well as one or more first apertures and one or more second openings.
  • the first openings are disposed closer to the receiving opening when the second openings and the second openings are closer to an outer wall of the switching device at ⁇ ordered than the first openings, so that the induced Ermér ⁇ mung in the switching device thermal convection Ström in the switching device through the first openings in a ers ⁇ th direction and by the second openings in a first direction opposite to the second direction is passed.
  • the receiving device has a passage and a base mounted on the passage, wherein the first opening are arranged in the base and wherein the second openings are arranged in the passage.
  • the base can be made of electrically conductive material, in particular copper or aluminum.
  • the implementation may be made of electrically conductive or non-conductive material. If the implementation of electrically conductive material, an electrically non-conductive element mon ⁇ advantage between the base and implementation.
  • a ring made of conductive material connected to the base or made in one piece therewith can be arranged, by means of which the heat dissipation area is increased.
  • the base and ring can be integrally ge ⁇ prepared.
  • the present invention further relates to a switching device with such a receiving device.
  • the switching device has a vacuum interrupter, a main flow path and a housing of thermally conductive material, in particular aluminum.
  • the switching device is filled with an insulating gas, which heats up during operation of the switching device on the main current ⁇ path, rises to the receiving device, passes through the first openings and further heated at the receiving device and passes after further ascend to an inner wall of the housing, Cools down there, sinks and passes through the second openings back into the area of the main ⁇ current path.
  • An important advantage of the present invention is that due to the particular arrangement of the first and second openings relative to each other, the thermal convection onsstrom is transported in the switching device.
  • the convection current is passed close to or through the base where ⁇ resulting from the hot spot at that particular (contacting Zvi ⁇ rule base and the vacuum interrupter) is effec- heat dissipated tiv.
  • the invention more compact ⁇ From measurements and / or higher current ratings of the switchgear are ⁇ it enables compared to solutions in which increased as copper ⁇ cross-sections or heat transfer surfaces increases ⁇ the heat to dissipate.
  • FIG. 1 shows a detail of a single-pole encapsulated switchgear with vertically arranged vacuum interrupter in a schematic representation
  • FIG. 2 shows a receiving device according to a preferred embodiment of the present invention in perspective view
  • Fig. 3 shows a receiving device according to a preferred embodiment of the present invention in plan view ⁇ ;
  • Fig. 5 shows the thermal convection in the range ner egg receiving device according to a preferred execution ⁇ example of the present invention.
  • FIG. 1 shows a detail of a unipolar encapsulated switchgear with vertically arranged vacuum interrupter in a schematic representation, in which the heat generated by power loss (indicated by arrow 3) on the conventional recording device 1 with her ⁇ conventional socket 2 for receiving the vacuum interrupter 20 dammed.
  • the base 2 of the receiving device 1 is the elekt ⁇ rical fixed contact between the main flow path 30 and vacuum ⁇ interrupter 20 and together with receiving device 1, the mechanical connection point to the housing 40. Since base 2 and housing 40 must be electrically isolated from each other, and the heat conduction between the Socket (which in turn forms a hot spot) and the housing greatly restricted. The rising heat 3 and the base 2 resulting or out of the vacuum interrupter 20 there conducted heat can be dissipated only poorly.
  • FIG. 2 shows an improved recording apparatus 10 according to a preferred embodiment of the present ⁇ invention in perspective view; Fig. 3 in top looks.
  • Receiving device 10 has a receiving opening 13 for receiving a vacuum interrupter, which can be realized ⁇ advantageously in the form of a base 10.
  • On ⁇ receiving device 10 also has a so-called implementation 12.
  • Recording device 10 has, as already explained in connection with FIG. 1, on the one hand the task of ensuring a reliable electrical contact between a main flow path of a switching device and the vacuum interrupter and on the other hand, the task of mecha ⁇ nically record the vacuum interrupter, the housing of the switching device stabilize ⁇ and ensure that the (usually electrically conductive) housing at any time reliable electrically isolated from the main flow path and the live parts of Vakuumschaltrschreibe. Shape and dimensions of the on ⁇ sampling device play a more minor role for the present invention; It is only important that the receiving device 10 fulfills the tasks described above.
  • Receiving device 10 is preferably formed from a passage 12 made of non-conductive material and base 11 made of good conductive material such as copper or aluminum. minium. Alternatively, it is also possible to manufacture the feedthrough 12 from conductive material, but then sufficient electrical insulation must be provided elsewhere (for example, between the base 11 and feedthrough 12).
  • Receiving device 10 has at least one first opening 14 which is arranged closer to the receiving opening 13 than at least one second opening 15.
  • the at least one second opening 15 is arranged closer to the outer wall or closer to the housing of the switching device than the at least one first opening 14th
  • a total of eight first openings 14 are shown as well as a total of ten second openings 15.
  • the openings while having a circular cross section because the structural integrity and the stability of the receiving apparatus 10 is the lowest possible impressed ⁇ adversely by this cross-section.
  • the production of such a modified on ⁇ receiving device 10 with base 11 is hardly expensive than the production of a conventional recording device with conventional socket, which is why the invention achieves its advantages oh ⁇ ne significant additional manufacturing effort.
  • Fig. 4 shows a single-pole encapsulated switchgear 100 with vertically arranged vacuum interrupter 20 in a schematic representation.
  • a housing 40 encloses a main flow path 30 and vacuum interrupter 20, which is mechanically fixed by a receiving device 10.
  • the housing 40 preferably is located in front ⁇ an insulating gas 50.
  • the other components of the switchgear as well as their function and arrangement corresponding to the manifold, well known to those skilled in state of the art and will not be explained here in terms of a scarce and rationalizing Dar ⁇ position.
  • the receiving device has inner openings 14 and outer openings 15, as explained in connection with FIGS. 2 and 3 in detail.
  • the current-carrying parts heat up and give off heat to the insulating gas, whereupon a thermal convection current forms in the housing.
  • This thermal convection current is explained in more detail below with reference to FIG. 5.
  • Fig. 5 shows an enlarged Dar ⁇ position of the area around the receiving device 10 of FIG. 4.
  • main current path 30 heats up due to the induced current flow dissipation and heat to which the main current path surrounding insulating gas from. This he heated insulating gas rises to the receiving device 10
  • the insulating gas heats up at the base 11 and possibly the ring 16 and continues to rise. Depending on the configuration of the switchgear 100, the insulating gas heats up on other components or assemblies.
  • the insulating he ⁇ warmed increases as long, until it reaches an inner wall of the housing 40 cools down there, decreases and passes through the second openings 15 again in the region of the main flow path 30.

Landscapes

  • Gas-Insulated Switchgears (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

La présente invention concerne un dispositif de logement amélioré pour tubes commutateurs à vide ainsi que qu'un appareillage pourvu d'un tel dispositif de logement. Le dispositif de logement (10) comporte une ouverture de logement (13) pour le logement d'un tube commutateur à vide (20) ainsi qu'une ou plusieurs premières ouvertures (14) et une ou plusieurs deuxièmes ouvertures (15). Les premières ouvertures (14) sont agencées plus près de l'ouverture de logement (13) que les deuxièmes ouvertures (15) et les deuxièmes ouvertures (15) sont agencées plus près d'une paroi extérieure du disjoncteur (100) que les premières ouvertures (14), de sorte que le courant de convection thermique provoqué par le réchauffement dans le disjoncteur est conduit dans le disjoncteur à travers les premières ouvertures (14) dans un premier sens (51) et à travers les deuxièmes ouvertures (15) dans un deuxième sens (52) opposé au premier sens.
PCT/EP2018/057466 2017-04-18 2018-03-23 Dispositif de logement pour tubes commutateurs à vide WO2018192741A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18716923.0A EP3593373B1 (fr) 2017-04-18 2018-03-23 Dispositif de logement pour tubes commutateurs à vide
ES18716923T ES2926450T3 (es) 2017-04-18 2018-03-23 Receptáculo para tubo interruptor al vacío

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017206518.4 2017-04-18
DE102017206518.4A DE102017206518A1 (de) 2017-04-18 2017-04-18 Aufnahmevorrichtung für Vakuumschaltröhren

Publications (1)

Publication Number Publication Date
WO2018192741A1 true WO2018192741A1 (fr) 2018-10-25

Family

ID=61952636

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/057466 WO2018192741A1 (fr) 2017-04-18 2018-03-23 Dispositif de logement pour tubes commutateurs à vide

Country Status (4)

Country Link
EP (1) EP3593373B1 (fr)
DE (1) DE102017206518A1 (fr)
ES (1) ES2926450T3 (fr)
WO (1) WO2018192741A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017207973B4 (de) 2017-05-11 2021-11-11 Siemens Aktiengesellschaft Schaltanlagenanordnung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0545508A1 (fr) * 1991-12-06 1993-06-09 Siemens Aktiengesellschaft Appareillage de commutation blindé à gaz isolant avec une boîte de raccordement de câble
DE19850206A1 (de) * 1998-10-23 2000-04-27 Siemens Ag Schaltanlagen mit Schaltgeräten, insbesondere mit Vakuumschützen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10207892B4 (de) * 2002-02-20 2004-02-05 Siemens Ag Vakuumschaltröhre mit einem Schaltkontaktstück

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0545508A1 (fr) * 1991-12-06 1993-06-09 Siemens Aktiengesellschaft Appareillage de commutation blindé à gaz isolant avec une boîte de raccordement de câble
DE19850206A1 (de) * 1998-10-23 2000-04-27 Siemens Ag Schaltanlagen mit Schaltgeräten, insbesondere mit Vakuumschützen

Also Published As

Publication number Publication date
EP3593373B1 (fr) 2022-08-24
ES2926450T3 (es) 2022-10-26
DE102017206518A1 (de) 2018-10-18
EP3593373A1 (fr) 2020-01-15

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