Electrical switching arrangement

Patent metadata

Field	Value
Publication number	US-2024363292-A1
Application number	US-202218691699-A
Country	US
Kind code	A1
Filing date	Sep 19, 2022
Priority date	Sep 20, 2021
Publication date	Oct 31, 2024
Grant date	—

Abstract

An electrical switching arrangement comprising a first conductor path and a second conductor path, whereby the second conductor path is connected in parallel to the first conductor path, a first switch which is arranged in the first conductor path, a second switch which is arranged in the second conductor path, it is suggested, that that at least a first semiconductor device is arranged in the second conductor path, and that the first semiconductor device is located in series to the second switch.

First claim

1 . A hybrid circuit breaker comprising a hybrid switching device and an electrical switching arrangement arranged in series, the hybrid switching device comprising a mechanical switch and a transistor arrangement switched parallel to the mechanical switch, and the electrical switching arrangement comprising: a first conductor path and a second conductor path, whereby the second conductor path is connected in parallel to the first conductor path, a first switch which is arranged in the first conductor path, a second switch which is arranged in the second conductor path, wherein at least a first semiconductor device is arranged in the second conductor path, and that the first semiconductor device ( 6 ) is located in series to the second switch.

2 . The hybrid circuit breaker according to claim 1 , wherein at least a second semiconductor device is arranged in the second conductor path, and that the second semiconductor device is located in series to the second switch and to the first semiconductor device.

3 . The hybrid circuit breaker according to claim 1 , wherein the first semiconductor device is embodied as a first diode.

4 . The hybrid circuit breaker according to claim 2 , wherein the second semiconductor device is embodied as a second diode ( 9 ), and that the second diode is located in the same forward direction as the first diode.

5 . The hybrid circuit breaker according to claim 4 , wherein at least a fourth diode and a fifth diode are located in anti-parallel to the series arrangement of the first diode and the second diode, wherein the fifth diode is in series with the fourth diode.

6 . The hybrid circuit breaker according to claim 1 , wherein the first semiconductor device is a first transistor arrangement.

7 . The hybrid circuit breaker according to claim 6 , wherein the second semiconductor device is a second transistor arrangement, and that the second transistor arrangement is located in another forward direction as the first transistor arrangement.

8 . The hybrid circuit breaker according to claim 1 , wherein at least a first fuse is arranged in the second conductor path, and that the first fuse is located in series to the second switch.

9 . Hybrid circuit breaker or solid-state circuit breaker comprising at least a first line conductor path, whereby a first mechanical separator is arranged in the first line conductor path, wherein the first mechanical separator is embodied as electrical switching arrangement according to claim 1 .

10 . Method for operating a hybrid circuit breaker according to claim 1 , wherein—in normal operation—the first switch ( 4 ) and the second switch are in switched-on-positions.

11 . Method according to claim 10 , wherein—in a switching off proceeding—the first switch is switched-off, and a predefined time after switching-off the first switch the second switch is switched-off.

Assignees

• Eaton Intelligent Power Ltd

Inventors

• Askan Kenan

Classifications

• H01H2009/544

  the static switching means being an insulated gate bipolar transistor, e.g. IGBT, Darlington configuration of FET and bipolar transistor · CPC title

• H01H33/596

  for interrupting DC · CPC title

• H02H3/087

  for DC applications · CPC title

• H02H3/08

  responsive to excess current (responsive to abnormal temperature caused by excess current H02H5/04) · CPC title

• H01H33/59

  Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the AC cycle · CPC title