公开(公告)号：US11962140B2

公开(公告)日：2024-04-16

申请号：US17452096

申请日：2021-10-25

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Jai Ganesh Subbarayan ,  Jeremy William Blair ,  Brett Mitchell Cockerham

IPC: H02H3/00 ,  H02H1/00 ,  H02H3/033 ,  H02H3/08 ,  H02H3/20

CPC classification number: H02H3/033 ,  H02H1/0007 ,  H02H3/08 ,  H02H3/20

Abstract: The present disclosure relates to systems and methods to coordinate protective elements in an electric power system (EPS). In one embodiment, a system may include a Time vs Normalized Impedance Length subsystem to determine a first plurality of times of operation of a first protective element for a plurality of fault locations in the EPS and to determine a second plurality of times of operation of a second protective element for the plurality of fault locations in the EPS. A protective action subsystem may coordinate a response of the first protective element and the second protective element. The protective action subsystem may establish a pickup and a protective action for the second protective element. Upon detection of a fault in the EPS, one of the first protective action and the second protective action may be implemented based on one of the first pickup and the second pickup.

公开(公告)号：US20230129666A1

公开(公告)日：2023-04-27

申请号：US17452096

申请日：2021-10-25

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Jai Ganesh Subbarayan ,  Jeremy William Blair ,  Brett Cockerham

IPC: H02H3/033 ,  H02H1/00 ,  H02H3/08 ,  H02H3/20

Abstract: The present disclosure relates to systems and methods to coordinate protective elements in an electric power system (EPS). In one embodiment, a system may include a Time vs Normalized Impedance Length subsystem to determine a first plurality of times of operation of a first protective element for a plurality of fault locations in the EPS and to determine a second plurality of times of operation of a second protective element for the plurality of fault locations in the EPS. A protective action subsystem may coordinate a response of the first protective element and the second protective element. The protective action subsystem may establish a pickup and a protective action for the second protective element. Upon detection of a fault in the EPS, one of the first protective action and the second protective action may be implemented based on one of the first pickup and the second pickup.