JPS6421835A - Power switching device - Google Patents

Power switching device

Info

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
Application number
JP17770387A
Other languages
Japanese (ja)
Inventor
Mitsugi Takahashi
Hajime Yoshiyasu
Shiro Murata
Haruhisa Toda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP17770387A priority Critical patent/JPS6421835A/en
Publication of JPS6421835A publication Critical patent/JPS6421835A/en
Pending legal-status Critical Current

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.
JP17770387A 1987-07-15 1987-07-15 Power switching device Pending JPS6421835A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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