GB1437108A - Vacuum electric circuit interrupter - Google Patents
Vacuum electric circuit interrupterInfo
- Publication number
- GB1437108A GB1437108A GB5339373A GB5339373A GB1437108A GB 1437108 A GB1437108 A GB 1437108A GB 5339373 A GB5339373 A GB 5339373A GB 5339373 A GB5339373 A GB 5339373A GB 1437108 A GB1437108 A GB 1437108A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shield
- electrodes
- partitions
- metal
- adjacent electrodes
- 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
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
- H01H33/662—Housings or protective screens
- H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
-
- 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
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/20—Means for extinguishing or preventing arc between current-carrying parts using arcing horns
-
- 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
- H01H33/662—Housings or protective screens
- H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
- H01H2033/66269—Details relating to the materials used for screens in 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
- H01H33/60—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
- H01H33/662—Housings or protective screens
- H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
- H01H2033/66292—Details relating to the use of multiple screens in vacuum switches
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
1437108 Arc control in vacuum switches GENERAL ELECTRIC CO 16 Nov 1973 [19 Jan 1973] 53393/73 Heading H1N A high current vacuum interruptor of the kind comprising hermetically sealed envelope 11 evacuated to a pressure not exceeding 10<SP>-4</SP> torr and containing two interleaved sets of parallel rod electrodes 16, 18 forming a ring the alternate members of which are of opposite polarity, is provided with a tubular metal shield 23, at least a major portion of which surrounds the electrode ring and is electrically isolated from it, this shield further comprising metal partitions 40 projecting radially into the spaces between adjacent electrodes 16 and 18 to divide each space into two series-related arcing gaps which share the recovery voltage between adjacent electrodes. In the preferred embodiment the electrodes 16 and 18 are connected at their outer ends to the metal top and base plates 15 and 17 of the envelope 11, the insulating side-wall of which is divided into two portions 13 and 14. A flange 20 sealed between the wall portions supports the tubular shield 23 and also auxiliary shields 71, 72. The current carrying contacts comprise a fixed contact 30 rigidly connected to the top plate 15 and a movable contact 32 sealed through the bottom plate 17 via a bellows 38 located in a housing extension 39. The stroke of this contact is preferably such as to provide a gap of greater length than that of the sum of the arcing gaps between adjacent electrodes 16 and 18, and in the embodiment is approximately 2 inches. Further auxiliary shields 70 and 73 are fitted. The tubular shield 23 comprises a cylindrical body portion 19 with metal end caps 50 and 52. The shape and location of this shield is such as to obtain substantially equal capacitance between the shield and each of the electrode assemblies when the interrupter is open. The gap between contacts 30, 32 and partitions 40 is at least equal to that between electrodes and partitions. In an alternative embodiment (Fig. 3, not shown) the shield partitions are curved concentrically around the adjacent electrodes and welded at their outer edges, so that the partitions themselves form the body portion of the shield. This arrangement provides a more uniform field around the electrodes. USA Specification 3,679,474 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US32518173A | 1973-01-19 | 1973-01-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1437108A true GB1437108A (en) | 1976-05-26 |
Family
ID=23266784
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5339373A Expired GB1437108A (en) | 1973-01-19 | 1973-11-16 | Vacuum electric circuit interrupter |
Country Status (6)
Country | Link |
---|---|
US (1) | US3786214A (en) |
JP (1) | JPS49103172A (en) |
CA (1) | CA958054A (en) |
DE (1) | DE2358120A1 (en) |
FR (1) | FR2214953A1 (en) |
GB (1) | GB1437108A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3953693A (en) * | 1974-09-09 | 1976-04-27 | Allis-Chalmers Corporation | Vacuum switch with integrated capacitor shield |
US3969598A (en) * | 1975-02-03 | 1976-07-13 | General Electric Company | Vacuum-type circuit interrupter with a plurality of sets of contacts in parallel |
US3997748A (en) * | 1975-06-23 | 1976-12-14 | General Electric Company | Vacuum interrupter with primary electrode surrounded by high dielectric strength shield |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL216587A (en) * | 1956-04-24 | |||
US3321598A (en) * | 1964-11-16 | 1967-05-23 | Gen Electric | Vacuum-type circuit interrupter with arc-voltage limiting means |
DE2036099C3 (en) * | 1970-07-16 | 1974-08-08 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Vacuum circuit breaker |
US3643047A (en) * | 1970-12-10 | 1972-02-15 | Gen Electric | Series double break rod array vacuum switch |
US3670123A (en) * | 1971-04-29 | 1972-06-13 | Joslyn Mfg & Supply Co | Multi-point to common point dead tank switch having vacuum insulated contacts and vacuum insulated terminals |
-
1973
- 1973-01-19 US US00325181A patent/US3786214A/en not_active Expired - Lifetime
- 1973-11-16 GB GB5339373A patent/GB1437108A/en not_active Expired
- 1973-11-16 CA CA186,036A patent/CA958054A/en not_active Expired
- 1973-11-20 FR FR7341271A patent/FR2214953A1/fr not_active Withdrawn
- 1973-11-21 DE DE2358120A patent/DE2358120A1/en active Pending
- 1973-11-22 JP JP48130813A patent/JPS49103172A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE2358120A1 (en) | 1974-07-25 |
JPS49103172A (en) | 1974-09-30 |
FR2214953A1 (en) | 1974-08-19 |
US3786214A (en) | 1974-01-15 |
CA958054A (en) | 1974-11-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |