GB666834A - Improvements in high voltage gas blast electrical circuit breakers - Google Patents
Improvements in high voltage gas blast electrical circuit breakersInfo
- Publication number
- GB666834A GB666834A GB32736/49A GB3273649A GB666834A GB 666834 A GB666834 A GB 666834A GB 32736/49 A GB32736/49 A GB 32736/49A GB 3273649 A GB3273649 A GB 3273649A GB 666834 A GB666834 A GB 666834A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contact
- rod
- tube
- head
- 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.)
- Expired
Links
- 239000012212 insulator Substances 0.000 abstract 3
- 230000008033 biological extinction Effects 0.000 abstract 1
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
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
- H01H33/121—Load break switches
- H01H33/125—Load break switches comprising a separate circuit breaker
- H01H33/128—Load break switches comprising a separate circuit breaker being operated by a separate mechanism interlocked with the sectionalising mechanism
-
- 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
- H01H33/16—Impedances connected with contacts
-
- 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
- H01H33/80—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve
- H01H33/82—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve the fluid being air or gas
- H01H33/83—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve the fluid being air or gas wherein the contacts are opened by the flow of air or gas
-
- 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
- H01H33/008—Pedestal mounted switch gear combinations
Landscapes
- Circuit Breakers (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
666,834. Gas-blast switches. BRITISH THOMSON-HOUSTON CO., Ltd., ROXBURGH, A., and LEIGH, A. Dec. 21, 1949. No. 32736/49. Class 38 (v). The interrupter head of a gas-blast circuitbreaker comprises a conducting tube 3 in two parts 3a, 3b jointed at 7 and supported by a conducting collar 8 within a two-part insulating casing 4, 5, the whole assembly being carried by a column insulator 11. Contact fingers 14, 18, constructed as disclosed in Specification 583,346, are spring-biassed to engage a retractable isolator rod 1 and the remote tube end, respectively, outward movement of the finger 14 being limited by an insulating collar 17. Connecting rods 22 are pivoted to the fingers 18 and to abutments 23 slidable in sleeves 24 on the contact head 2, a resistance R being connected between the head 2 and collar 8. In operation, pressure-gas flows into the annular space 6 around the tube 3 whereby the contact fingers 14, 18 disengage the rod 1 and tube 3, the gas exhausting through ports 28 and a passage 27 in the collar 8, and through passages 30 in the contact head 2. The arc formed at contacts 18 is shunted by the resistance Rand the resistance-limited current broken at the contacts 14, rod 1 being then retracted to form an isolating break. A non-linear resistance may be connected between the tube 3 and a contact having sliding engagement with the rod 1 to facilitate extinction of the arc at contacts 14, and any arc formed when the rod 1 leaves the sliding contact is limited by both resistances in series and extinguished by the blast through the throat member 13. The column insulator 11 is supported by arms 33 on the gas reservoir 31, and the isolator contact 1 slides within a contact 34 supported by a further insulator 35 on the tank 31, terminal connectors 37 being provided on the contact 34 and contact head 2. The rod 1 is operated by an insulating arm 38 through a linkage 40, 41 and cylinder 42. A three-phase arrangement, Fig. 3 (not shown), comprises three units as shown in Fig. 2 mounted side-by-side on a common tank 31.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB289510X | 1949-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB666834A true GB666834A (en) | 1952-02-20 |
Family
ID=10283823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB32736/49A Expired GB666834A (en) | 1949-12-21 | 1949-12-21 | Improvements in high voltage gas blast electrical circuit breakers |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2645696A (en) |
| CH (1) | CH289510A (en) |
| FR (1) | FR1034701A (en) |
| GB (1) | GB666834A (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2445529A (en) * | 1944-09-19 | 1948-07-20 | Westinghouse Electric Corp | Circuit interrupter |
| FR999210A (en) * | 1945-12-03 | 1952-01-29 | ||
| BE469806A (en) * | 1945-12-18 |
-
0
- FR FR1034701D patent/FR1034701A/fr not_active Expired
-
1949
- 1949-12-21 GB GB32736/49A patent/GB666834A/en not_active Expired
-
1950
- 1950-12-20 CH CH289510D patent/CH289510A/en unknown
- 1950-12-21 US US201961A patent/US2645696A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CH289510A (en) | 1953-03-15 |
| FR1034701A (en) | 1953-07-30 |
| US2645696A (en) | 1953-07-14 |
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