Circuit-breaker

Circuit-breaker

  • CN 1,983,487 A
  • Filed: 09/24/2003
  • Published: 06/20/2007
  • Est. Priority Date: 09/24/2002
  • Status: Active Application
First Claim
Patent Images

1. circuit breaker, has at least one arc control device, these arc control device are insulation gas filled, extend along longitudinal axis (1), radial symmetric, comprise an arc region and have at least two electric current contacts, wherein at least one electric current contact is movable or fixing tubular hollow contact (2), this hollow contact is used for importing the hot gas of arc region in the delivery space (10) and having a guider (4), this guider is arranged in hollow contact (2) to deviate from the side of arc region, be connected with at least the first hole (6) acting in conjunction of hollow contact (2) and with a connector (12), being used for a hot gas radially imports in the delivery space (10), this delivery space is communicated with arc control device volume (14) by at least the second hole (13), volume (7) in the middle of wherein between hollow contact (2) and delivery space (10), being provided with first at least, this first middle volume is formed by first wall (8) sealing, one the 3rd hole (9) is arranged on this first wallIt is characterized by,Should keep following ratio:

  • V 1/ A 1=(0.1 to 0.5) rice, V 2/ A 2=(0.1 to 0.5) rice, V 3/ A 3=(1.0 to 2.5) rice, V wherein 1Be the volume of hollow contact (2), A 1Be the cross section of first hole (6), V 2Be the volume of the first middle volume (7), A 2Be the cross section of the 3rd hole (9), V 3Be the volume of delivery space (10), A 3It is the cross section of second hole (13).

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