- 专利标题: METHOD FOR RESTORING POWER IN AN UNDERGROUND RADIAL LOOP NETWORK
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申请号: US17400412申请日: 2021-08-12
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公开(公告)号: US20220102973A1公开(公告)日: 2022-03-31
- 发明人: Michael Quinlan , Boris Marendic , Alejandro Montenegro , Daniel Desmond , John French
- 申请人: S&C Electric Company
- 申请人地址: US IL Chicago
- 专利权人: S&C Electric Company
- 当前专利权人: S&C Electric Company
- 当前专利权人地址: US IL Chicago
- 主分类号: H02J3/00
- IPC分类号: H02J3/00 ; H02J13/00 ; H02H3/06 ; H02H3/08
摘要:
A method for isolating a fault in an underground power distribution network. The network includes a power line, a plurality of transformers electrically coupled to and positioned along the power line, a first recloser connected to one end of the power line and a second recloser connected to an opposite end of the power line, where each transformer includes an upstream switching device and a downstream switching device, and where power is provided to both ends of the power line through the first and second reclosers and one of the switching devices is a normally open switching device. The method includes detecting overcurrent by some of the switching devices, detecting loss of voltage by some of the switching devices and sending clear to close messages to some of the switching devices to open and close certain ones of the switching devices to isolate the fault.