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发明申请
US20120154966A1 FAULT CURRENT LIMITERS (FCL) WITH THE CORES SATURATED BY NON-SUPERCONDUCTING COILS 审中-公开
故障电流限制（FCL）与非超导线圈饱和的电线

FAULT CURRENT LIMITERS (FCL) WITH THE CORES SATURATED BY NON-SUPERCONDUCTING COILS
摘要：
A current limiting device (30, 40, 50, 60) comprising for each phase of an AC supply a closed magnetic core (31) of reduced volume and mass having first and second pairs of opposing limbs (32a, 32b; 33a, 33b), and at least one AC coil (35a, 35b) enclosing opposing limbs (33a, 33b) of the magnetic core (31) and adapted for series connection with a load. A non-superconducting DC bias coil (34) typically formed of copper encloses a limb (32a, 32b) of the magnetic core (31) for saturating each of the opposing limbs (33a, 33b) in opposite directions by the bias coil (34). Under fault conditions, the AC flux in at least one limb counteracts the DC bias flux, bringing the limb out of saturation. Preferably, current is reduced in the DC bias coils thus bringing both opposing limbs of the core out of saturation.
摘要（中）：

一种限流装置（30,40,50,60），其包括用于交流电源的每个相位的具有减小体积和质量的闭合磁芯（31），其具有第一和第二对相对的分支（32a，32b; 33a，33b） ，以及包围磁芯（31）的相对的支腿（33a，33b）的至少一个AC线圈（35a，35b），并且适于与负载串联连接。 典型地由铜形成的非超导DC偏置线圈（34）包围磁芯（31）的肢体（32a，32b），用于通过偏置线圈（34）在相反方向上使每个相对的肢体（33a，33b）饱和 ）。 在故障条件下，至少一个肢体中的交流通量抵消了直流偏置通量，使肢体不饱和。 优选地，电流在DC偏置线圈中减小，从而使得芯的两个相对的分支不饱和。

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