GB553734A - Improvements in or relating to multiple-break gas-blast circuit-breakers - Google Patents
Improvements in or relating to multiple-break gas-blast circuit-breakersInfo
- Publication number
- GB553734A GB553734A GB8484/41A GB848441A GB553734A GB 553734 A GB553734 A GB 553734A GB 8484/41 A GB8484/41 A GB 8484/41A GB 848441 A GB848441 A GB 848441A GB 553734 A GB553734 A GB 553734A
- Authority
- GB
- United Kingdom
- Prior art keywords
- interruption
- points
- series
- tubes
- chambers
- 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
- 239000004020 conductor Substances 0.000 abstract 2
- 239000012212 insulator Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 230000001681 protective effect 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
- H01H33/14—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc
-
- 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
- H01H33/14—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc
- H01H2033/146—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc using capacitors, e.g. for the voltage division over the different switches
Landscapes
- Circuit Breakers (AREA)
- Gas-Insulated Switchgears (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
553,734. Gas-blast circuit breakers. AKT.- GES. BROWN, BOVERI, & CIE. July 4, 1941, No. 8484. Convention date, Feb. 27, 1940. [Class 38 (v)] In a gas-blast circuitbreaker with multiple interruption by means of a plurality of switch elements arranged in series, only the outer points of interruption are bridged over by impedances which are so dimensioned that the voltage to be interrupted is distributed as uniformly as possible over the individual points of interruptions so that the arc is certain to be extinguished. The residual current arising from the interruption of the arc is interrupted by the remaining points of interruption which are not bridged) over and at least one point of interruption at each end of the series of switch elements is bridged over by a resistor or capacity. The ends of the supporting tubes for the switch elements are constructed to act as resistors or capacities which may be graded and are provided with an external layer of semi-conductive material. High ohmic resistors in the form of tubes l', l<SP>2</SP> fixed to both ends of tubes f are connected in parallel with each of the two points of interruption a<SP>1</SP>, a<SP>2</SP> and a', a<SP>8</SP> of a series of points of interruption a<SP>1</SP> . . . a<SP>8</SP>, arranged in extinguishing chambers formed inside the insulators e arranged in between the tubes f. Capacities instead of resistors may be provided on the tubes f. The insides and outsides of the extinguishing chambers may be provided with layers of semi-conductive material and the walls of such chambers may be made of a material of high ohmic resistance. When condensers are used, those parts of the chambers surrounding the arcing contacts of the switch points may be used as condenser elements or the walls of the chambers may be made from a material having a high dielectric constant. An air isolating switch may be connected in series with the switch points arranged in series. In another form of circuit breaker, the outer points are located inside insulators and are bridged over by protective cylinders provided with insulating covers to act as condensers.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH553734X | 1940-02-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB553734A true GB553734A (en) | 1943-06-03 |
Family
ID=4519835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8484/41A Expired GB553734A (en) | 1940-02-27 | 1941-07-04 | Improvements in or relating to multiple-break gas-blast circuit-breakers |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2291263A (en) |
| BE (1) | BE440693A (en) |
| CH (1) | CH214995A (en) |
| FR (1) | FR869611A (en) |
| GB (1) | GB553734A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE458203A (en) * | 1943-11-24 | |||
| US2675505A (en) * | 1949-12-02 | 1954-04-13 | Gen Electric | Multibreak circuit breaker with protective impedances |
| US2840670A (en) * | 1954-12-20 | 1958-06-24 | Westinghouse Electric Corp | Circuit interrupters |
| US2830234A (en) * | 1956-08-01 | 1958-04-08 | Mc Graw Edison Co | Arrangement for switching shunt capacitor banks |
| NL252649A (en) * | 1959-06-30 | |||
| US3526734A (en) * | 1967-11-06 | 1970-09-01 | Ite Imperial Corp | Dead tank gas blast circuit breaker with interrupter structure immersed in low pressure of dead tank |
-
0
- BE BE440693D patent/BE440693A/xx unknown
-
1940
- 1940-02-27 CH CH214995D patent/CH214995A/en unknown
-
1941
- 1941-01-29 FR FR869611D patent/FR869611A/en not_active Expired
- 1941-03-25 US US385169A patent/US2291263A/en not_active Expired - Lifetime
- 1941-07-04 GB GB8484/41A patent/GB553734A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR869611A (en) | 1942-02-09 |
| CH214995A (en) | 1941-05-31 |
| US2291263A (en) | 1942-07-28 |
| BE440693A (en) |
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