Invention Grant
- Patent Title: Bidirectional direct current electrical switching apparatus
- Patent Title (中): 双向直流电气开关装置
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Application No.: US13593867Application Date: 2012-08-24
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Publication No.: US08368492B1Publication Date: 2013-02-05
- Inventor: Peter J. Theisen , Paul J. Rollmann , Mark A. Juds , Xin Zhou
- Applicant: Peter J. Theisen , Paul J. Rollmann , Mark A. Juds , Xin Zhou
- Applicant Address: US OH Cleveland
- Assignee: Eaton Corporation
- Current Assignee: Eaton Corporation
- Current Assignee Address: US OH Cleveland
- Agency: Eckert Seamans Cherin & Mellott, LLC
- Agent Kirk D. Houser
- Main IPC: H01H9/30
- IPC: H01H9/30 ; H01H9/38 ; H01H9/44 ; H01H33/12

Abstract:
A direct current electrical switching apparatus includes a first contact in electrical communication with first and third arc runners, a second contact in electrical communication with second and fourth arc runners, a movable contact, a first arc chamber including first arc plates having a first width, a second arc chamber including second arc plates having a greater second width, an operating mechanism, and a magnet assembly cooperating with the arc chambers to establish generally oppositely directed magnetic fields. The magnetic fields cause one of a first arc and a second arc to enter one of the arc chambers depending upon a direction of current flow between the contacts. The electrical switching apparatus is rated for a first magnitude of current flowing from the first contact to the second contact and for a greater second magnitude of opposite second current flowing from the second contact to the first contact.
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