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公开(公告)号：US20230198248A1
公开(公告)日：2023-06-22
申请号：US17557258
申请日：2021-12-21
Applicant: ABB S.p.A.
Inventor： Li Qi , Yuzhi Zhang , Taosha Jiang
CPC classification number: H02H9/02 , H02H1/0007 , H03K3/017
Abstract: In one aspect, a hybrid circuit protection device for current-limiting a fault current between a source and a load during a fault is provided. The hybrid circuit protection device includes an input configured to couple to the source, an output configured to couple to the load, a return configured to couple the source to the load, a main switch configured to selectively couple the input to the output, a switching network coupled in parallel with the main switch, and a controller. The controller is configured to determine that the main switch has opened in response to the fault current, where the fault current has an initial value, and activate the switching network to current-limit the fault current to less than the initial value during the fault.
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公开(公告)号：US11837865B2
公开(公告)日：2023-12-05
申请号：US17557258
申请日：2021-12-21
Applicant: ABB S.p.A.
Inventor： Li Qi , Yuzhi Zhang , Taosha Jiang
CPC classification number: H02H9/02 , H01H9/542 , H02H1/0007 , H03K3/017
Abstract: In one aspect, a hybrid circuit protection device for current-limiting a fault current between a source and a load during a fault is provided. The hybrid circuit protection device includes an input configured to couple to the source, an output configured to couple to the load, a return configured to couple the source to the load, a main switch configured to selectively couple the input to the output, a switching network coupled in parallel with the main switch, and a controller. The controller is configured to determine that the main switch has opened in response to the fault current, where the fault current has an initial value, and activate the switching network to current-limit the fault current to less than the initial value during the fault.
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