CN103698564B - 一种防止电表pcb板工频磁场启动的方法 - Google Patents
一种防止电表pcb板工频磁场启动的方法 Download PDFInfo
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Abstract
Description
常规方法 | 实施例2 | 实施例1 | |
固定面积S | 35mm2 | 7mm2 | 5mm2 |
总面积最小值 | 35mm2 | 7mm2 | 5mm2 |
总面积经验值 | 46mm2 | 18mm2 | 16mm2 |
总面积最大值 | 55.3mm2 | 27.3mm2 | 25.3mm2 |
感应功率范围 | 6.12W~9.67W | 1.22W~4.78W | 0.88W~2.8W |
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CN201310733628.8A CN103698564B (zh) | 2013-12-26 | 2013-12-26 | 一种防止电表pcb板工频磁场启动的方法 |
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CN103698564A CN103698564A (zh) | 2014-04-02 |
CN103698564B true CN103698564B (zh) | 2016-08-24 |
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CN111830297B (zh) * | 2020-06-05 | 2023-05-23 | 宁波三星医疗电气股份有限公司 | 一种电能表0.5mT工频磁场下防干扰的方法 |
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US5926014A (en) * | 1997-03-17 | 1999-07-20 | General Electric Company | Magnetic shield for plastic molded electricity meter frames |
CN1295948C (zh) * | 2004-03-22 | 2007-01-17 | 北京华东森源电气有限责任公司 | 一种采用印刷电路板构造的空芯线圈 |
CN100536044C (zh) * | 2006-06-29 | 2009-09-02 | 武汉格蓝若光电互感器有限公司 | 一种基于印刷电路板的钳形双绕组空芯线圈 |
CN202870135U (zh) * | 2012-09-07 | 2013-04-10 | 湖南航天经济发展有限公司 | 一种抗超强恒定磁场的智能电表 |
CN202854212U (zh) * | 2012-09-27 | 2013-04-03 | 杭州炬华科技股份有限公司 | 一种抗外界磁场干扰的锰铜电流采样器件 |
CN203204032U (zh) * | 2012-12-31 | 2013-09-18 | 深圳浩宁达仪表股份有限公司 | 不受交变外磁场影响的具有电流采样模块的测量仪表 |
CN203011965U (zh) * | 2013-01-10 | 2013-06-19 | 浙江力辉电器有限公司 | 抗干扰的智能电表 |
CN103063891B (zh) * | 2013-01-10 | 2014-11-26 | 浙江力辉电器有限公司 | 抗干扰的智能电表以及智能电表的抗干扰方法 |
CN203025249U (zh) * | 2013-01-23 | 2013-06-26 | 威胜集团有限公司 | 用于单相电能表的单相计量模块 |
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Inventor after: Song Xiqiang Inventor after: Yang Caotian Inventor after: Fan Zhuoxia Inventor after: Yu Hongchun Inventor before: Song Xiqiang Inventor before: Yang Caotian Inventor before: Fan Zhuoxia Inventor before: Yu Hongchun |