Invention Grant
- Patent Title: Fault protection devices and related reclosing methods
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Application No.: US16562478Application Date: 2019-09-06
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Publication No.: US11101641B2Publication Date: 2021-08-24
- Inventor: Michael John Meisinger , David Francis Klein
- Applicant: S&C Electric Company
- Applicant Address: US IL Chicago
- Assignee: S&C Electric Company
- Current Assignee: S&C Electric Company
- Current Assignee Address: US IL Chicago
- Main IPC: H02H7/22
- IPC: H02H7/22 ; H02H1/00

Abstract:
Fault protection devices for electrical distribution systems and related reclosing methods are provided. One exemplary method of reclosing a switching element of a fault protection device after fault detection involves pulsing the switching element closed to enable a temporary current flow through the fault protection device and verifying absence of a fault condition based at least in part on the temporary current flow using a testing fault detection threshold. After verifying the absence of the fault condition, the method closes the switching element to enable current flow through the fault protection device, monitors the current flow through the fault protection device for the fault condition using the testing fault detection threshold for a transition period, and monitors the current flow through the fault protection device for the fault condition using a different fault detection threshold after the transition period.
Public/Granted literature
- US20200099217A1 FAULT PROTECTION DEVICES AND RELATED RECLOSING METHODS Public/Granted day:2020-03-26
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