JPS6421835A - Power switching device - Google Patents
Power switching deviceInfo
- Publication number
- JPS6421835A JPS6421835A JP17770387A JP17770387A JPS6421835A JP S6421835 A JPS6421835 A JP S6421835A JP 17770387 A JP17770387 A JP 17770387A JP 17770387 A JP17770387 A JP 17770387A JP S6421835 A JPS6421835 A JP S6421835A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- electrode
- extinction
- arc
- contacts
- 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.)
- Pending
Links
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
PURPOSE:To make high-voltage interruption operable easily by disposing an intermediate electrode so that it faces a tip part of a movable electrode during the opening of both contacts and it faces an extinction plate and it covers both the tip part and the extinction plate. CONSTITUTION:A positive column of an arc generated between contacts 3 and 4 during the opening of the contacts is attracted in the direction of an extinction plate 6 by a magnetic action of the plate 6. Gases of high temperature and of high pressure is generated from the positive column of the arc, and these gases are made to flow outward from an extinction chamber while temperature of them is being lowered by adiabatic expansion. The flow of them upward the extinction chamber is not interrupted midway because of a U-shaped flow on the plate 6, and they are made to impinge directly on a surface of an intermediate electrode 10 since the upper part of the extinction chamber is covered with this electrode 10. Consequently the gases receive adiabatic compression in the vicinity of the electrode 10 and so temperature rises. When an arc foot on a fixed contact 3 is carried to an arc runner 11, the positive column is tried to move to the inner part of the plate 6 by a magnetic action of the plate 6, so that two arcs are generated between a tip part 9 and the electrode 10 and between the electrode 10 and the runner 11 respectively. Accordingly high- voltage interruption can be operated easily.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17770387A JPS6421835A (en) | 1987-07-15 | 1987-07-15 | Power switching device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17770387A JPS6421835A (en) | 1987-07-15 | 1987-07-15 | Power switching device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6421835A true JPS6421835A (en) | 1989-01-25 |
Family
ID=16035627
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17770387A Pending JPS6421835A (en) | 1987-07-15 | 1987-07-15 | Power switching device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6421835A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6384702B1 (en) * | 1998-09-30 | 2002-05-07 | Rockwell Automation Technologies, Inc. | Stationary contact for an electrical contactor and method for conducting current through same |
-
1987
- 1987-07-15 JP JP17770387A patent/JPS6421835A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6384702B1 (en) * | 1998-09-30 | 2002-05-07 | Rockwell Automation Technologies, Inc. | Stationary contact for an electrical contactor and method for conducting current through same |
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