FR648945A - Vacuum switch for alternating currents - Google Patents
Vacuum switch for alternating currentsInfo
- Publication number
- FR648945A FR648945A FR648945DA FR648945A FR 648945 A FR648945 A FR 648945A FR 648945D A FR648945D A FR 648945DA FR 648945 A FR648945 A FR 648945A
- Authority
- FR
- France
- Prior art keywords
- vacuum switch
- alternating currents
- currents
- alternating
- vacuum
- 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
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/59—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH285909X | 1927-02-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR648945A true FR648945A (en) | 1928-12-15 |
Family
ID=4485166
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR648945D Expired FR648945A (en) | 1927-02-25 | 1928-02-14 | Vacuum switch for alternating currents |
Country Status (3)
Country | Link |
---|---|
US (1) | US1750581A (en) |
FR (1) | FR648945A (en) |
GB (1) | GB285909A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL63114C (en) * | 1942-04-25 | |||
US2441789A (en) * | 1944-06-28 | 1948-05-18 | Gen Electric | Electromagnetic switching system aided by space-discharge device |
-
1928
- 1928-02-14 FR FR648945D patent/FR648945A/en not_active Expired
- 1928-02-20 GB GB5383/28A patent/GB285909A/en not_active Expired
- 1928-02-25 US US257030A patent/US1750581A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB285909A (en) | 1928-10-11 |
US1750581A (en) | 1930-03-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR648055A (en) | Bearing shield for small electrical machines | |
FR723123A (en) | Vacuum switch | |
FR640233A (en) | Improvements to electromagnets for alternating currents | |
FR648945A (en) | Vacuum switch for alternating currents | |
FR648481A (en) | Very high vacuum switch | |
FR657791A (en) | Rectifier for alternating currents | |
FR637897A (en) | Switch for low currents | |
FR636191A (en) | Bottle basket | |
FR652354A (en) | Switch-regulator for step transformer | |
FR706766A (en) | Switch for alternating currents | |
FR634707A (en) | Switch for high currents | |
FR581256A (en) | polyphase alternating current electromagnet | |
FR721547A (en) | Vacuum switch | |
FR652082A (en) | Switch enhancements | |
FR702201A (en) | Vacuum switch | |
FR621813A (en) | New dust vacuum | |
FR645931A (en) | Improvements to push-button switches for electrical installations | |
FR663780A (en) | Mercury toggle switch | |
FR618238A (en) | Triple direction switch | |
FR640625A (en) | Knife switch | |
FR627603A (en) | Time switch | |
FR664099A (en) | Rocker switch | |
FR653622A (en) | Vacuum tube | |
FR676808A (en) | Arc switch | |
FR636092A (en) | Push button switch |