FR704330A - Transformateur à commutateur à gradins et à commutateur à étincelles - Google Patents
Transformateur à commutateur à gradins et à commutateur à étincellesInfo
- Publication number
- FR704330A FR704330A FR704330DA FR704330A FR 704330 A FR704330 A FR 704330A FR 704330D A FR704330D A FR 704330DA FR 704330 A FR704330 A FR 704330A
- Authority
- FR
- France
- Prior art keywords
- switch
- spark
- transformer
- switch transformer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0005—Tap change devices
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH704330X | 1929-11-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR704330A true FR704330A (fr) | 1931-05-18 |
Family
ID=4530273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR704330D Expired FR704330A (fr) | 1929-11-15 | 1930-10-24 | Transformateur à commutateur à gradins et à commutateur à étincelles |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR704330A (fr) |
-
1930
- 1930-10-24 FR FR704330D patent/FR704330A/fr not_active Expired
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