基本信息:
- 专利标题： 一种多环全光纤电流互感器
- 专利标题（英）：Multi-ring all-fiber current transformer
- 申请号：CN201610874186.2 申请日：2016-09-30
- 公开(公告)号：CN107884611A 公开(公告)日：2018-04-06
- 发明人： 王耀 , 阎嫦玲 , 罗苏南 , 须雷 , 赵俊 , 丁晔 , 李权伟 , 王凯 , 王光
- 申请人： 南京南瑞继保电气有限公司 , 南京南瑞继保工程技术有限公司
- 申请人地址： 江苏省南京市江宁区苏源大道69号
- 专利权人： 南京南瑞继保电气有限公司,南京南瑞继保工程技术有限公司
- 当前专利权人： 南京南瑞继保电气有限公司,南京南瑞继保工程技术有限公司
- 当前专利权人地址： 江苏省南京市江宁区苏源大道69号
- 代理机构： 南京经纬专利商标代理有限公司
- 代理人： 葛潇敏
- 主分类号： G01R15/24
- IPC分类号： G01R15/24 ; G01R19/10
The invention discloses a multi-ring all-fiber current transformer comprising an acquisition unit and a plurality of sensing fiber rings. All sensing fiber rings are connected in series and the adjacent sensing fiber rings are connected by polarization-maintaining fibers; and the sensing fiber ring at the front end is connected with the acquisition unit by a polarization-maintaining fiber. The acquisition unit provides an optical signal meeting the need of the sensing fiber ring, receives an optical signal returned by each sensing fiber ring, and calculates a primary current. On the basis of the structure of the transformer, a measurement need of differential currents or combined currents of a plurality of differential-current and zero-sequence-current measurement points can be met with low costs; and the system reliability is improved.