- 专利标题: METHOD FOR ISOLATING A FAULT AND RESTORING POWER IN AN UNDERGROUND RADIAL LOOP NETWORK USING FAULT INTERRUPTING SWITCHES
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申请号: US17400410申请日: 2021-08-12
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公开(公告)号: US20220103010A1公开(公告)日: 2022-03-31
- 发明人: Michael Quinlan , John Seuss , 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: H02J13/00
- IPC分类号: H02J13/00 ; H02J3/00
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 end switch connected to one end of the power line and a second end switch connected to an opposite end of the power line, where each transformer includes an upstream switching device and a downstream switching device, and where source power is provided to both ends of the power line through the first and second end switches and one of the switching devices is a normally open switching device. The method includes detecting overcurrent in the network from the fault, opening certain ones of the switching devices in response thereto, detecting loss of voltage as a result of the open switching devices and opening or closing certain ones of the switching devices to isolate the fault.