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Single-pole cutoff unit comprising a rotary contact bridge, cutoff device comprising such a unit, and circuit breaker comprising such a device

A technology of rotating contacts and contact bridges, which can be used in parts of protection switches, circuit breakers with excessive current, overload protection circuit breakers, etc., which can solve problems such as imperfect efficiency.

Active Publication Date: 2012-07-25
SCHNEIDER ELECTRIC IND SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the efficiency of this solution is not perfect

Method used

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  • Single-pole cutoff unit comprising a rotary contact bridge, cutoff device comprising such a unit, and circuit breaker comprising such a device
  • Single-pole cutoff unit comprising a rotary contact bridge, cutoff device comprising such a unit, and circuit breaker comprising such a device
  • Single-pole cutoff unit comprising a rotary contact bridge, cutoff device comprising such a unit, and circuit breaker comprising such a device

Examples

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Embodiment Construction

[0032] According to an embodiment of the present invention, the circuit breaker 100 includes a trip device 7 associated with the switch device 600

[0033] The switching device 600 according to the present invention includes at least one single-pole disconnect unit 10. The single-pole disconnect unit according to the present invention is designed to be connected on the one hand to the trip device 7 at the position of the load-side terminal plate 5 and on the other hand to the current line to be protected at the position of the load-side terminal plate 4. The single pole disconnect unit 10 is also called a box.

[0034] According to Figure 3A In the preferred embodiment of the present invention shown in 3B, the switching device 600 includes three single-pole disconnecting units. The switching device 100 is then a three-pole circuit breaker. According to other embodiments not shown, the switching device may be a single pole, two pole or four pole circuit breaker.

[0035] With rega...

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PUM

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Abstract

The invention relates to a cutoff unit including a contact bridge (22), at least one stationary contact (41, 51) engaging with said contact bridge, and a rotary bar (26) having a transverse opening for receiving (21) said bridge which projects from the bar (20), said bar (20) being inserted between two side surfaces (14) of the cutoff unit. Said contact bridge includes two sealing flanges (27) placed between the radial surfaces of the rotary bar (26) and the side surfaces (14), respectively. At least one arc-extinguishing chamber (24) opens out onto an opening space of the contact bridge (22). The rotary bar (26) comprises at least one channel (29) for connecting to the transverse receiving opening (21).

Description

Technical field [0001] The present invention relates to a single-pole disconnecting unit, which includes a rotating contact bridge, at least one static contact cooperating with the contact bridge and connected to a current input conductor, and a transverse hole with a gap to accommodate the contact bridge Rotating the rod, the contact bridge protrudes on each side of the rod, and the rotating rod is inserted between two side panels of the disconnect unit, the side panels being substantially parallel to each other. The rotating contact bridge also includes two sealing flanges respectively arranged between the radial surface of the rotating rod and the side panel to ensure the sealing between the inside and the outside of the disconnect unit. At least one arc extinguishing chamber opens to the opening volume of the contact bridge. [0002] The invention also relates to a switch device including such a disconnect unit. [0003] The invention also relates to a circuit breaker includin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H1/20H01H71/02H01H71/10
CPCH01H2071/0285H01H73/045H01H71/0271H01H71/1009H01H1/2058H01H2077/025H01H2071/1036H01H1/20H01H71/02H01H71/10
Inventor H.安哥拉德M.里瓦尔C.格鲁梅尔J-P.冈内特
Owner SCHNEIDER ELECTRIC IND SAS