Invention Grant
- Patent Title: Controlled three-pole close for transmission lines
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Application No.: US16872636Application Date: 2020-05-12
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Publication No.: US11575253B2Publication Date: 2023-02-07
- Inventor: Ritwik Chowdhury , Gabriel Benmouyal , Carolyn Sun
- 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
- Agent Bradley W. Schield; Richard M. Edge
- Main IPC: H02H1/00
- IPC: H02H1/00 ; H02H3/02 ; G05B9/02 ; G05B17/02

Abstract:
Systems and methods to estimate trapped charge for a controlled automatic reclose of a power line using a ganged switching device are described herein. For example, an intelligent electronic device (IED) may calculate a voltage amount associated with trapped charge of each phase of a power line based on voltage measurements of the power line. The IED may send a signal to close a ganged switching device at a time based at least in part on the trapped charge of each phase of a power line.
Public/Granted literature
- US20210359503A1 CONTROLLED THREE-POLE CLOSE FOR TRANSMISSION LINES Public/Granted day:2021-11-18
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