NL73752C - - Google Patents
Info
- Publication number
- NL73752C NL73752C NL73752DA NL73752C NL 73752 C NL73752 C NL 73752C NL 73752D A NL73752D A NL 73752DA NL 73752 C NL73752 C NL 73752C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
- H02H5/06—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature in oil-filled electric apparatus
-
- 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
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 |
|---|---|---|---|
| SE1023772X | 1950-05-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL73752C true NL73752C (OSRAM) |
Family
ID=20418780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL73752D NL73752C (OSRAM) | 1950-05-10 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE495925A (OSRAM) |
| FR (1) | FR1023772A (OSRAM) |
| NL (1) | NL73752C (OSRAM) |
-
0
- NL NL73752D patent/NL73752C/xx active
- BE BE495925D patent/BE495925A/xx unknown
-
1950
- 1950-08-25 FR FR1023772D patent/FR1023772A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1023772A (fr) | 1953-03-24 |
| BE495925A (OSRAM) |