NL55503C - - Google Patents
Info
- Publication number
- NL55503C NL55503C NL55503DA NL55503C NL 55503 C NL55503 C NL 55503C NL 55503D A NL55503D A NL 55503DA NL 55503 C NL55503 C NL 55503C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- 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
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/404—Protective devices specially adapted for fluid filled transformers
-
- 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
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE223859X | 1939-06-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL55503C true NL55503C (enrdf_load_html_response) |
Family
ID=5852739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL55503D NL55503C (enrdf_load_html_response) | 1939-06-07 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE442822A (enrdf_load_html_response) |
| CH (1) | CH223859A (enrdf_load_html_response) |
| FR (1) | FR869850A (enrdf_load_html_response) |
| NL (1) | NL55503C (enrdf_load_html_response) |
-
0
- NL NL55503D patent/NL55503C/xx active
- BE BE442822D patent/BE442822A/xx unknown
-
1940
- 1940-05-27 CH CH223859D patent/CH223859A/de unknown
-
1941
- 1941-02-07 FR FR869850D patent/FR869850A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE442822A (enrdf_load_html_response) | |
| FR869850A (fr) | 1942-02-20 |
| CH223859A (de) | 1942-10-15 |