NL257190A - - Google Patents
Info
- Publication number
- NL257190A NL257190A NL257190DA NL257190A NL 257190 A NL257190 A NL 257190A NL 257190D A NL257190D A NL 257190DA NL 257190 A NL257190 A NL 257190A
- 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
- H01H33/161—Variable impedances
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1959S0065988 DE1240987B (de) | 1959-11-26 | 1959-11-26 | Sprunghaft betaetigter Lastumschalter fuer Stufentransformatoren |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL257190A true NL257190A (mo) |
Family
ID=7498459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL257190D NL257190A (mo) | 1959-11-26 |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH387784A (mo) |
| DE (1) | DE1240987B (mo) |
| NL (1) | NL257190A (mo) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH219773A (de) * | 1940-04-20 | 1942-02-28 | Licentia Gmbh | Verfahren und Einrichtung zum Umschalten von Transformatoranzapfungen unter Last. |
| BE501458A (mo) * | 1943-02-21 | |||
| DE892177C (de) * | 1943-02-21 | 1953-10-05 | Siemens Ag | Lastschalter fuer Stufenregeleinrichtungen von Transformatoren, Drosselspulen od. dgl. |
| DE824517C (de) * | 1950-05-27 | 1951-12-13 | Accumulatoren Fabrik Ag | Unterbrechungslose Umschaltvorrichtung fuer Schaltzellen von Akkumulatorenbatterien |
| DE1146191B (de) | 1957-08-05 | 1963-03-28 | Magdalena Jansen Geb Haase | Lastumschalter mit veraenderlichen ohmschen UEberschaltwiderstaenden |
-
0
- NL NL257190D patent/NL257190A/xx unknown
-
1959
- 1959-11-26 DE DE1959S0065988 patent/DE1240987B/de active Pending
-
1960
- 1960-09-06 CH CH1005060A patent/CH387784A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1240987B (de) | 1967-05-24 |
| CH387784A (de) | 1965-02-15 |