GB554982A - Improvements in or relating to liquid-insulated electric circuit-breakers - Google Patents
Improvements in or relating to liquid-insulated electric circuit-breakersInfo
- Publication number
- GB554982A GB554982A GB97942A GB97942A GB554982A GB 554982 A GB554982 A GB 554982A GB 97942 A GB97942 A GB 97942A GB 97942 A GB97942 A GB 97942A GB 554982 A GB554982 A GB 554982A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contact
- liquid
- cylinder
- piston
- enclosure
- 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
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
- H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
- H01H33/92—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism the arc-extinguishing fluid being liquid, e.g. oil
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Circuit Breakers (AREA)
Abstract
554,982. Liquid-blast switches. REYROLLE & CO., Ltd., A., and WILD, R. W. Jan. 23, 1942, No. 979. [Class 38 (v)] In a switch having means for drawing out the opening-arc to a predetermined limited length such that it is confined within a laterally-vented enclosure, a piston is positively actuated by the contact-opening mechanism to inject liquid into the enclosure after the arc has been drawn to that length. The enclosure may be as described in one or other of Specifications 435,250, 435,308, 452,146, and 460,219. In Fig. 1, the arc drawn between the fixed and movable contacts B, C is limited by a fixed auxiliary contact B<SP>1</SP> which C continuously engages, and when this point is reached, the piston C<SP>3</SP> on the movable contact closes a port D<SP>2</SP> in the cylinder D so that further movement of C injects liquid into the enclosure through a duct C<SP>4</SP>. In reclosing, the cylinder D is refilled initially through a valve-controlled port D<SP>3</SP>, and a seep hole D' is provided in the piston. In Fig. 2, the moving contact J terminates in a cylinder J' communicating through ports J<SP>6</SP>, J' and passages J<SP>4</SP>, J<SP>5</SP> with a duct J<SP>1</SP>, but only when a normallyclosed, spring-controlled slide valve K is opened. When the rod L' is raised, the liquid entrapped in the cylinder J<SP>3</SP> couples the piston L and contact J, whereby the rod and contact move together. Near the end of travel of contact J, valve K engages flange M<SP>1</SP>, and opens and by further movement of L, L', the liquid is injected through the contact J. A port J<SP>8</SP> between the cylinder J<SP>3</SP> and outer casing erables the reverse movements to take place in closing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB97942A GB554982A (en) | 1942-01-23 | 1942-01-23 | Improvements in or relating to liquid-insulated electric circuit-breakers |
| FR932992D FR932992A (en) | 1942-01-23 | 1946-08-21 | Improvements to insulating liquid electric circuit breakers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB97942A GB554982A (en) | 1942-01-23 | 1942-01-23 | Improvements in or relating to liquid-insulated electric circuit-breakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB554982A true GB554982A (en) | 1943-07-28 |
Family
ID=9713891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB97942A Expired GB554982A (en) | 1942-01-23 | 1942-01-23 | Improvements in or relating to liquid-insulated electric circuit-breakers |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR932992A (en) |
| GB (1) | GB554982A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1299746B (en) * | 1960-06-14 | 1969-07-24 | Fabriek Van Electrische App N | Low-liquid circuit breaker |
-
1942
- 1942-01-23 GB GB97942A patent/GB554982A/en not_active Expired
-
1946
- 1946-08-21 FR FR932992D patent/FR932992A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1299746B (en) * | 1960-06-14 | 1969-07-24 | Fabriek Van Electrische App N | Low-liquid circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| FR932992A (en) | 1948-04-07 |
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