US3814881A - Vacuum interrupters enclosed in vacuum housings - Google Patents

Vacuum interrupters enclosed in vacuum housings Download PDF

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Publication number
US3814881A
US3814881A US00273885A US27388572A US3814881A US 3814881 A US3814881 A US 3814881A US 00273885 A US00273885 A US 00273885A US 27388572 A US27388572 A US 27388572A US 3814881 A US3814881 A US 3814881A
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US
United States
Prior art keywords
vacuum
type
evacuated
resinous
casing
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.)
Expired - Lifetime
Application number
US00273885A
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English (en)
Inventor
S Cherry
P Wayland
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Priority to US00273885A priority Critical patent/US3814881A/en
Priority to CA175,955A priority patent/CA967205A/en
Priority to JP48080535A priority patent/JPS4958363A/ja
Application granted granted Critical
Publication of US3814881A publication Critical patent/US3814881A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • 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
    • H01H33/022—Details particular to three-phase circuit breakers
    • H01H2033/024—Details particular to three-phase circuit breakers with a triangular setup of circuit breakers
    • 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
    • H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
    • H01H33/56—Gas reservoirs
    • H01H2033/566—Avoiding the use of SF6
    • 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
    • H01H2033/6668—Operating arrangements with a plurality of interruptible circuit paths in single vacuum chamber
    • 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
    • H01H33/022—Details particular to three-phase circuit breakers

Definitions

  • VACUUM INTERRUPIERS ENCLOSED IN VACUUM HOUSINGS [75] Inventors: Sidney J. Cherry, Elmira; Paul O. Wayland, Montour Falls, both of Ky. [73] Assignee: Westinghouse Electric Corporation,
  • ABSTRACT A vacuum-type interrupter is enclosed within a vacuum environment, or housing to enable a better voltage-withstand between the live parts and the outer housing walls.
  • the outer housing is formed of metal, and is grounded, with terminal bushings extending through'the grounded outer metallic housing.
  • the housing may, if desired, be of insulating material. In this latter event, the terminal leads require no conventional-type terminal-bushings for, their accommodation.
  • the operating mechanism may either be disposed externally of the outer housing, or the operating mechanism for the vacuum I interrupter may be disposed internally of the outer housing.
  • Another object of the present invention is the provision of an improved vacuum-type circuit interrupter in which the vacuum-interrupter elements, either provided singly, or provided in multiple plural series arrangement, are disposed within an evacuated housing.
  • Still a further object of the present invention is to provide an improved tank-type circuit-interrupter with grounded metallic walls, having terminal-bushings extending therein, and providing one or more vacuum 2 bottles" disposed internally of the metallic grounded housing.
  • FIG. l is a vertical sectional view taken through a vacuum-type circuit interrupter embodying the principles of the present invention, with the contact structure being illustrated in the closed-circuit position;
  • FIG. 2 is a fragmentary view of the circuit-interrupter of FIG. 1, illustrating a modification thereof, in which the operating mechanism is electrical, and is disposed internally of' the evacuated metallic housing;
  • FIG. 3 is a second modification of the invention, in which three vacuum bottles" are disposed within an evacuated housing, each having its own separate mechanism for T tap switching purposes, the contact structure being illustrated in the closed-circuit position;
  • the reference numeral 1 generally designates a vacuum-type circuit interrupter.
  • FIG. 1 it will be noted that there is provided a pair of series-related vacuum interrupter bottles 3, 4, each having its upper stationary contact terminal 3a or 4a connected to the lower end of a terminal bushing 6 or 7 of rather conventional style.
  • the terminal-bushings 6, 7 comprise a terminal-stud 8, extending longitudinally through an insulating body 9.
  • U.S. Pat. Nos. 3,222,625, 3,001,004 and 3,001,005 for the description of such a type of terminal-bushing structure.
  • each vacuum bottle 3, 4 generally comprises a stationary contact 11, cooperable with a movable contact 13, the latter being actuated by a movable contact stem 15 extending through a bellows l7, and actuated by an external cross-bar 19.
  • the cross-bar 19 is actuated by a bridging member 21, to the intermediate portion 210 of which is secured an operating rod 23, preferably formed of insulating material.
  • the operating rod 23 extends through a bellows 25, and is mechanically connected to an external operating mechanism, indicated by the reference numeral 27.
  • the operating rod 23 is moved linearly in a vertical direction, upwardly to close the breaker l, and downwardly to open the breaker 11. This will, of course, effect simultaneous opening and closing motions of the movable contacts 13 into and out of contacting engagement with the stationary contacts 11 in a manner well known by thoseskilled in the art.
  • the outer casing 29, which is preferably metallic and grounded, is maintained in an evacuated condition, as by a vac-ion pump 31, or if desired, by a getter.
  • FIG. 2 illustrates a modification of the arrangement of FIG. 1 in which the operating mechanism 33 is of a solenoid type, and is provided internally of the casing 29. It is electrical, and the wires for energizing the same are indicated by the reference numerals 35 and 36.
  • the operating mechanism 33 is of a solenoid type, and is provided internally of the casing 29. It is electrical, and the wires for energizing the same are indicated by the reference numerals 35 and 36.
  • solenoid 39 is energized and effects a downward motion of the solenoid plunger 40 into the winding 38, and
  • a spring 42 may effect a reclosure of the movable contacts 13 in an obvious manner.
  • FIGS. 3-5 of the drawings it will be noted that in this modification of the invention there is provided a T" tap-switching arrangement 44, as diagrammatically illustrated in FIG. 5 of the drawings.
  • Three terminal bushings 46-48 extend through the outer grounded metallic housing 50, and the three vacuum bottles 52-54 are disposed interiorly thereof, with each having its own separate operating mechanism.
  • the mechanisms are diagrammatically illustrated by the reference numerals 57-59.
  • the operation of the vacuum bottles 52-54 will appear obvious in view of the previous description relevant to FIGS. 1 and 2.
  • FIG. 4 illustrates more clearly how the vacuum bottles 52-54 and bushings 46-48 may be located in a desired arrangement with adequate spacing between the bOlllBS.
  • Vacuum interrupter lengths and spacings between interrupters are shorter than those in air for two or more vacuum interrupters which work in combination with one another.
  • Movable terminal temperatures are not critical since oxidation will not take place in vacuum.
  • a selecting switch for changing electrical connections comprising, in combination, a molded resinous insulating evacuated casing having a plurality of resinous-type insulating terminal bushings extending out of the upper cover portion thereof, a vacuum-interrupting unit supported at the lower end of each of the plurality of resinous-type terminal bushings, each vacuum-type interrupting unit having a relatively stationary contact and a cooperable movable c'ontact making separable contacting engagement within the evacuated enclosure, means electrically connecting the several movable contacts together, and a separate operating mechanism for each vacuum-type interrupting unit for selectively operating the respective movable contact thereof according to the switching intentions of the operator.
US00273885A 1972-07-21 1972-07-21 Vacuum interrupters enclosed in vacuum housings Expired - Lifetime US3814881A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US00273885A US3814881A (en) 1972-07-21 1972-07-21 Vacuum interrupters enclosed in vacuum housings
CA175,955A CA967205A (en) 1972-07-21 1973-07-09 Vacuum interrupters enclosed in vacuum housings
JP48080535A JPS4958363A (fr) 1972-07-21 1973-07-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00273885A US3814881A (en) 1972-07-21 1972-07-21 Vacuum interrupters enclosed in vacuum housings

Publications (1)

Publication Number Publication Date
US3814881A true US3814881A (en) 1974-06-04

Family

ID=23045827

Family Applications (1)

Application Number Title Priority Date Filing Date
US00273885A Expired - Lifetime US3814881A (en) 1972-07-21 1972-07-21 Vacuum interrupters enclosed in vacuum housings

Country Status (3)

Country Link
US (1) US3814881A (fr)
JP (1) JPS4958363A (fr)
CA (1) CA967205A (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4107496A (en) * 1973-12-21 1978-08-15 Hazemeijer B.V. Vacuum switching apparatus with double interruption and including an interposed barrier
US4154993A (en) * 1977-09-26 1979-05-15 Mcgraw-Edison Company Cable connected drawout switchgear
US4306129A (en) * 1979-08-09 1981-12-15 Siemens Aktiengesellschaft Low voltage contactor switch with three-phase contact bank
US4484046A (en) * 1983-01-14 1984-11-20 Power Distribution Products, Inc. Vacuum load break switch
US5985628A (en) * 1997-01-21 1999-11-16 Abb Patent Gmbh Generator switch
US20160064171A1 (en) * 2013-03-28 2016-03-03 Abb Technology Ltd Switch Assembly, A Switching Device Comprising A Switch Assembly, A Switchgear Comprising A Switching Device And A Method For Cooling
CN107004534A (zh) * 2014-11-27 2017-08-01 泰科电子英国有限公司 高压断路器、系统、真空中断器模块和相关联的驱动模块
US11152172B2 (en) * 2017-07-31 2021-10-19 Camlin Technologies Limited Vacuum circuit breaker
CN113963996A (zh) * 2020-07-20 2022-01-21 Abb瑞士股份有限公司 断路器隔室

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51103660U (fr) * 1975-02-17 1976-08-19

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1720413A (en) * 1926-10-30 1929-07-09 Condit Electrical Mfg Corp Electrically-operated circuit interrupter
US1801736A (en) * 1926-10-30 1931-04-21 Condit Electrical Mfg Corp Oil-immersed vacuum-type switch
GB1223833A (en) * 1966-12-19 1971-03-03 Reyrolle A & Co Ltd Improvements relating to vacuum circuit-breakers

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS435801Y1 (fr) * 1965-03-03 1968-03-13

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1720413A (en) * 1926-10-30 1929-07-09 Condit Electrical Mfg Corp Electrically-operated circuit interrupter
US1801736A (en) * 1926-10-30 1931-04-21 Condit Electrical Mfg Corp Oil-immersed vacuum-type switch
GB1223833A (en) * 1966-12-19 1971-03-03 Reyrolle A & Co Ltd Improvements relating to vacuum circuit-breakers

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4107496A (en) * 1973-12-21 1978-08-15 Hazemeijer B.V. Vacuum switching apparatus with double interruption and including an interposed barrier
US4154993A (en) * 1977-09-26 1979-05-15 Mcgraw-Edison Company Cable connected drawout switchgear
US4306129A (en) * 1979-08-09 1981-12-15 Siemens Aktiengesellschaft Low voltage contactor switch with three-phase contact bank
US4484046A (en) * 1983-01-14 1984-11-20 Power Distribution Products, Inc. Vacuum load break switch
US5985628A (en) * 1997-01-21 1999-11-16 Abb Patent Gmbh Generator switch
US20160064171A1 (en) * 2013-03-28 2016-03-03 Abb Technology Ltd Switch Assembly, A Switching Device Comprising A Switch Assembly, A Switchgear Comprising A Switching Device And A Method For Cooling
US9425006B2 (en) * 2013-03-28 2016-08-23 Abb Technology Ltd Switch assembly, a switching device comprising a switch assembly, a switchgear comprising a switching device and a method for cooling
CN107004534A (zh) * 2014-11-27 2017-08-01 泰科电子英国有限公司 高压断路器、系统、真空中断器模块和相关联的驱动模块
US20170256374A1 (en) * 2014-11-27 2017-09-07 Tyco Electronics Uk Ltd High Voltage Circuit Breaker, System, Vacuum Interrupter Module and Associated Drive Module
US10262820B2 (en) * 2014-11-27 2019-04-16 Tyco Electronics Uk Ltd High voltage circuit breaker, system, vacuum interrupter module and associated drive module
CN107004534B (zh) * 2014-11-27 2019-11-05 泰科电子英国有限公司 高压断路器、系统、真空中断器模块和相关联的驱动模块
US11152172B2 (en) * 2017-07-31 2021-10-19 Camlin Technologies Limited Vacuum circuit breaker
CN113963996A (zh) * 2020-07-20 2022-01-21 Abb瑞士股份有限公司 断路器隔室
EP3944276A1 (fr) * 2020-07-20 2022-01-26 ABB Schweiz AG Compartiment de disjoncteur

Also Published As

Publication number Publication date
CA967205A (en) 1975-05-06
JPS4958363A (fr) 1974-06-06

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