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公开(公告)号：US11056877B2
公开(公告)日：2021-07-06
申请号：US16139930
申请日：2018-09-24
申请人： ABB Schweiz AG
发明人： Jani Valtari , Ganesh Kulathu , Sixten Holm , Jakub Sipowicz
摘要： A system and method for feeder protection in an electrical power network nodal point including at least three feeders. In the system and the method it is executed in an intelligent electronic device reserved for the feeder, on the basis of the at least one measured electrical quantity actual in the respective feeder, at least one first protection function monitoring a power system related condition of the respective feeder, as well as in a central intelligent electronic device, for at least one feeder, at least one second protection function monitoring the same power system related condition of the feeder. Furthermore the central intelligent electronic device is configured to further execute for the at least one feeder, on the basis of the at least one measured electrical quantity actual in the other feeders connected to the same nodal point, at least one third protection function monitoring the same power system related condition of the feeder.
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公开(公告)号：US20190097410A1
公开(公告)日：2019-03-28
申请号：US16139930
申请日：2018-09-24
申请人： ABB Schweiz AG
发明人： Jani Valtari , Ganesh Kulathu , Sixten Holm , Jakub Sipowicz
摘要： A system and method for feeder protection in an electrical power network nodal point including at least three feeders. In the system and the method it is executed in an intelligent electronic device reserved for the feeder, on the basis of the at least one measured electrical quantity actual in the respective feeder, at least one first protection function monitoring a power system related condition of the respective feeder, as well as in a central intelligent electronic device, for at least one feeder, at least one second protection function monitoring the same power system related condition of the feeder. Furthermore the central intelligent electronic device is configured to further execute for the at least one feeder, on the basis of the at least one measured electrical quantity actual in the other feeders connected to the same nodal point, at least one third protection function monitoring the same power system related condition of the feeder.
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公开(公告)号：US20240006868A1
公开(公告)日：2024-01-04
申请号：US18246994
申请日：2021-09-24
申请人： ABB Schweiz AG
发明人： Jani Valtari
CPC分类号： H02H1/0092 , H02H7/261 , G01R31/52 , G01R31/58
摘要： A method for detecting a phenomenon in an electrical power network including at least one protection zone with at least two subzones. The method including measuring in the subzones of the protection zone at least one current signal actual in the respective subzone, determining linear dependency between the at least one measured current signal actual in at least one subzone of the protection zone and the corresponding at least one measured current signal actual in at least one another subzone of the protection zone, and detecting the phenomenon in the protection zone of the electrical power network based on the at least one determined linear dependency.
Furthermore, a system for detecting a phenomenon in an electrical power network.
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