BE490292A - - Google Patents
Info
- Publication number
- BE490292A BE490292A BE490292DA BE490292A BE 490292 A BE490292 A BE 490292A BE 490292D A BE490292D A BE 490292DA BE 490292 A BE490292 A BE 490292A
- Authority
- BE
- Belgium
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
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/16—Impedances connected with contacts
- H01H33/167—Impedances connected with contacts the impedance being inserted only while opening the switch
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH3659948 | 1948-07-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE490292A true BE490292A (fr) |
Family
ID=4513340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE490292D BE490292A (fr) | 1948-07-23 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2581822A (fr) |
| BE (1) | BE490292A (fr) |
| CH (1) | CH265318A (fr) |
| DE (1) | DE806692C (fr) |
| FR (1) | FR991047A (fr) |
| GB (1) | GB660944A (fr) |
| NL (1) | NL73206C (fr) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2665351A (en) * | 1951-02-09 | 1954-01-05 | Asea Ab | Arrangement in air blast circuit breaker provided with damping resistance |
| BE536110A (fr) * | 1954-03-02 | |||
| GB824103A (en) * | 1954-11-24 | 1959-11-25 | Lewis Berger & Sons Ltd | Improvements in or relating to the manufacture of copolymers of epoxide resin esters |
| CH331003A (de) * | 1955-02-16 | 1958-06-30 | Bbc Brown Boveri & Cie | Druckgasschalter mit Mehrfachunterbrechung |
| CH337908A (de) * | 1955-04-14 | 1959-04-30 | Bbc Brown Boveri & Cie | Druckluftschalter mit Hilfsunterbrechungsstelle für Parallelwiderstände |
| CH344466A (de) * | 1955-05-14 | 1960-02-15 | Bbc Brown Boveri & Cie | Druckluftschalter |
| US2977446A (en) * | 1956-10-22 | 1961-03-28 | Westinghouse Electric Corp | Compressed-gas circuit interrupter |
| GB884854A (en) * | 1957-07-01 | 1961-12-20 | Ass Elect Ind | Improvements in air or gas blast electric circuit-breakers |
| CH355196A (de) * | 1957-11-18 | 1961-06-30 | Bbc Brown Boveri & Cie | Schalter mit Widerständen |
| DE1207992B (de) * | 1958-08-01 | 1965-12-30 | Bbc Brown Boveri & Cie | Druckluftschalter mit Einfach- oder Mehrfachunterbrechung pro Pol |
| US3482069A (en) * | 1966-12-12 | 1969-12-02 | Gen Electric | Voltage controlling shunting resistor with operating cam contour modifying means |
| US3629532A (en) * | 1970-02-20 | 1971-12-21 | Sun Electric Corp | Immediately responsive fluid flow operated switch with normally closed spring contact in flow channel |
| FR2662848B2 (fr) * | 1990-02-27 | 1994-07-01 | Alsthom Gec | Disjoncteur a coupure assistee par varistance. |
| FR2658949B1 (fr) * | 1990-02-27 | 1994-05-13 | Gec Alsthom Sa | Disjoncteur a coupure assistee par varistance. |
| CN109724794B (zh) * | 2019-02-19 | 2021-02-23 | 三门核电有限公司 | 一种爆破阀控制回路测试系统 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB538672A (en) * | 1939-03-30 | 1941-08-12 | Asea Ab | Compressed air circuit breaker having a resistance bridging the contacts |
| FR872891A (fr) * | 1940-06-07 | 1942-06-22 | Asea Ab | Interrupteur électrique fonctionnant à l'air comprimé |
| BE457528A (fr) * | 1943-09-11 |
-
0
- NL NL73206D patent/NL73206C/xx active
- BE BE490292D patent/BE490292A/xx unknown
-
1948
- 1948-07-23 CH CH265318D patent/CH265318A/de unknown
-
1949
- 1949-06-02 DE DEP44554A patent/DE806692C/de not_active Expired
- 1949-06-23 GB GB16735/49A patent/GB660944A/en not_active Expired
- 1949-07-15 US US104916A patent/US2581822A/en not_active Expired - Lifetime
- 1949-07-21 FR FR991047D patent/FR991047A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL73206C (fr) | |
| GB660944A (en) | 1951-11-14 |
| US2581822A (en) | 1952-01-08 |
| DE806692C (de) | 1951-06-18 |
| CH265318A (de) | 1949-11-30 |
| FR991047A (fr) | 1951-09-28 |