BE440836A - - Google Patents
Info
- Publication number
- BE440836A BE440836A BE440836DA BE440836A BE 440836 A BE440836 A BE 440836A BE 440836D A BE440836D A BE 440836DA BE 440836 A BE440836 A BE 440836A
- 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
- H01H33/164—Impedances connected with contacts the impedance being inserted in the circuit by blowing the arc onto an auxiliary electrode
-
- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR860421T | 1939-06-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE440836A true BE440836A (de) |
Family
ID=9333482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE440836D BE440836A (de) | 1939-06-22 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2281385A (de) |
| BE (1) | BE440836A (de) |
| FR (1) | FR860421A (de) |
| GB (1) | GB537364A (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2781435A (en) * | 1951-03-18 | 1957-02-12 | Heilmann Philipp | Arc-extinguishing mechanism for electric switches |
| US2757261A (en) * | 1951-07-19 | 1956-07-31 | Westinghouse Electric Corp | Circuit interrupters |
| GB710925A (en) * | 1951-10-26 | 1954-06-23 | Westinghouse Electric Int Co | Improvements in or relating to electric circuit interrupter devices |
| US2788418A (en) * | 1954-03-22 | 1957-04-09 | Gertrude M Idzkowski | Circuit interrupter |
| FR1108749A (fr) * | 1954-06-18 | 1956-01-17 | Dispositif pour l'interruption d'arcs électriques de grandes puissances | |
| US2924690A (en) * | 1954-12-24 | 1960-02-09 | Westinghouse Electric Corp | Circuit interrupters |
| US2919330A (en) * | 1956-01-30 | 1959-12-29 | Oerlikon Engineering Company | Low-oil content high-tension oil circuit breaker |
| US3529108A (en) * | 1966-09-01 | 1970-09-15 | Westinghouse Electric Corp | Nozzle and contact construction for fluid-blast circuit interrupters |
| US3688242A (en) * | 1969-10-24 | 1972-08-29 | Morganite Resistors Ltd | Shunt for oil-immersed circuit breaker |
| US5349019A (en) * | 1988-12-24 | 1994-09-20 | Hoechst | New copolymers, mixtures thereof with poly(meth)acrylate esters and the use thereof for improving the cold fluidity of crude oils |
-
0
- BE BE440836D patent/BE440836A/xx unknown
-
1939
- 1939-06-22 FR FR860421D patent/FR860421A/fr not_active Expired
-
1940
- 1940-05-17 US US335828A patent/US2281385A/en not_active Expired - Lifetime
- 1940-06-22 GB GB10750/40A patent/GB537364A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR860421A (fr) | 1941-01-14 |
| US2281385A (en) | 1942-04-28 |
| GB537364A (en) | 1941-06-18 |