BE446887A - - Google Patents
Info
- Publication number
- BE446887A BE446887A BE446887DA BE446887A BE 446887 A BE446887 A BE 446887A BE 446887D A BE446887D A BE 446887DA BE 446887 A BE446887 A BE 446887A
- 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
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
- H01H33/55—Oil reservoirs or tanks; Lowering means therefor
- H01H33/555—Protective arrangements responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/18—Switches operated by change of liquid level or of liquid density, e.g. float switch
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/40—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by devices allowing continual flow of fluid, e.g. vane
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Power Engineering (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE229048X | 1941-07-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE446887A true BE446887A (en:Method) |
Family
ID=5867563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE446887D BE446887A (en:Method) | 1941-07-03 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE446887A (en:Method) |
| CH (1) | CH229048A (en:Method) |
| FR (1) | FR885491A (en:Method) |
-
0
- BE BE446887D patent/BE446887A/xx unknown
-
1942
- 1942-06-27 CH CH229048D patent/CH229048A/de unknown
- 1942-08-26 FR FR885491D patent/FR885491A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH229048A (de) | 1943-09-30 |
| FR885491A (fr) | 1943-09-16 |