发明授权
- 专利标题： Master-slave fiber optic current sensors for differential protection schemes
- 专利标题（中）： 用于差动保护方案的主从光纤电流传感器
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申请号： US13395282申请日： 2010-09-10
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公开(公告)号： US08922194B2公开(公告)日： 2014-12-30
- 发明人: James N. Blake , Carl Glasow
- 申请人： James N. Blake , Carl Glasow
- 申请人地址： CH Baden
- 专利权人： Alstom Technology Ltd
- 当前专利权人： Alstom Technology Ltd
- 当前专利权人地址： CH Baden
- 代理机构： Patent Portfolio Builders PLLC
- 国际申请： PCT/US2010/048392 WO 20100910
- 国际公布： WO2011/031945 WO 20110317
- 主分类号： G01R31/00
- IPC分类号： G01R31/00 ; G01R33/032
摘要：
A master-slave current sensor system for measuring, for example, differential current on a transmission line is described. The slave current sensor can be periodically recalibrated (or have a compensation value re-calculated) based on the master sensor's average output, and the slave sensor can be unpowered and remote from an electronics box which receives its measurements. Health monitoring and fault location can also be performed using the master-slave optical current sensor system, optionally in conjunction with one or more voltage sensors.
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