Invention Application
- Patent Title: COORDINATION OF PROTECTIVE ELEMENTS IN AN ELECTRIC POWER SYSTEM
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Application No.: US17452096Application Date: 2021-10-25
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Publication No.: US20230129666A1Publication Date: 2023-04-27
- Inventor: Jai Ganesh Subbarayan , Jeremy William Blair , Brett Cockerham
- Applicant: Schweitzer Engineering Laboratories, Inc.
- Applicant Address: US WA Pullman
- Assignee: Schweitzer Engineering Laboratories, Inc.
- Current Assignee: Schweitzer Engineering Laboratories, Inc.
- Current Assignee Address: US WA Pullman
- Main IPC: H02H3/033
- 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.
Public/Granted literature
- US11962140B2 Coordination of protective elements in an electric power system Public/Granted day:2024-04-16
Information query