Title:
電弧の急速移動と伸長に有利な遮断器
Document Type and Number:
Japanese Patent JP6496326
Kind Code:
B2
Abstract:
A breaker comprises a static contact, a moving contact, and an arc-extinguishing chamber. A contact surface of an electrical contact of the static contact and an electrical contact of the moving contact and a bottom plane of a base form an acute angle that is located in the first quadrant. The moving contact comprises a conducting rod having a projecting portion, and the electrical contact which is welded on an end surface of the projecting portion in a direction facing the electrical contact of the static contact. A bottom arc-ignition grid plate on the bottom of the arc-extinguishing chamber is arranged lower than the electrical contact of the static contact. A top arc-ignition grid plate on the top of the arc-extinguishing chamber is arranged higher than the maximum position of the electrical contact of the moving contact when the moving contact is opened.
Inventors:
Nan Inn
Application Number:
JP2016565474A
Publication Date:
April 03, 2019
Filing Date:
March 20, 2015
Export Citation:
Assignee:
Beijing Peoples Electric Plant Company Limited
International Classes:
H01H73/18; H01H9/44; H01H73/02
Domestic Patent References:
| JP1274335A | ||||
| JP2007207512A | ||||
| JP2006019113A | ||||
| JP64019638A | ||||
| JP60246535A | ||||
| JP54157279A | ||||
| JP58113948U | ||||
| JP39029222B1 | ||||
| JP60049525A | ||||
| JP2012243659A |
Foreign References:
| CN201369303Y | ||||
| EP0359467A1 |
Attorney, Agent or Firm:
Suzue International Patent Office