发明名称 |
Detection transformer for differential protection equipment, comprises iron based magnetic circuit which has crystals of less than 100 nanometers thick and rectangular magnetic cycle at low frequency |
摘要 |
The detection transformer which is used with excitation and processing units is toroidal and contains the protected conductors. The transformer magnetic circuit is based on iron with crystals which do not exceed 100 nanometers in thickness and has a static or low frequency magnetic cycle (21) which is virtually rectangular. The coercive force (Hc) in the magnetic cycle is preferably less than 1.5 Amperes/meter. An Independent claim is also included for a differential protection equipment which uses the detection transformer and magnetic circuit. |
申请公布号 |
FR2824951(A1) |
申请公布日期 |
2002.11.22 |
申请号 |
FR20010006674 |
申请日期 |
2001.05.21 |
申请人 |
SCHNEIDER ELECTRIC INDUSTRIES SA |
发明人 |
JURASZEK CHRISTELLE;TIAN SIMON;PAUPERT MARC |
分类号 |
G01R15/18;G01R29/20 |
主分类号 |
G01R15/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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