NL138884C - - Google Patents
Info
- Publication number
- NL138884C NL138884C NL138884DA NL138884C NL 138884 C NL138884 C NL 138884C NL 138884D A NL138884D A NL 138884DA NL 138884 C NL138884 C NL 138884C
- Authority
- NL
- Netherlands
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
-
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH644489X | 1947-09-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL138884C true NL138884C (en:Method) |
Family
ID=4525660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL138884D NL138884C (en:Method) | 1947-09-24 |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH258959A (en:Method) |
| FR (1) | FR963331A (en:Method) |
| GB (1) | GB644489A (en:Method) |
| NL (1) | NL138884C (en:Method) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB755016A (en) * | 1953-07-08 | 1956-08-15 | Reyrolle A & Co Ltd | Improvements relating to electric switchgear |
| GB884854A (en) * | 1957-07-01 | 1961-12-20 | Ass Elect Ind | Improvements in air or gas blast electric circuit-breakers |
| JPS59105226A (ja) * | 1982-12-09 | 1984-06-18 | 株式会社日立製作所 | しゃ断器 |
| US4788390A (en) * | 1988-04-26 | 1988-11-29 | Siemens Energy & Automation, Inc. | Shunt capacitor switch with an impedance insertion element |
-
0
- NL NL138884D patent/NL138884C/xx active
- FR FR963331D patent/FR963331A/fr not_active Expired
-
1947
- 1947-09-24 CH CH258959D patent/CH258959A/de unknown
-
1948
- 1948-08-06 GB GB20854/48A patent/GB644489A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB644489A (en) | 1950-10-11 |
| CH258959A (de) | 1948-12-31 |
| FR963331A (en:Method) | 1950-07-05 |