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    • 21. 发明授权
    • Ground fault interrupters for glassy metal alloys
    • 玻璃状金属合金的接地故障断路器
    • US4956743A
    • 1990-09-11
    • US465658
    • 1990-01-19
    • Ryusuke Hasegawa
    • Ryusuke Hasegawa
    • H01F1/153H02H3/33
    • H01F1/15316H02H3/33
    • A ground fault interrupter is adapted to be connected to a circuit having a supply current and a return current. The interrupter has a detection mechanism, including one or more than one cores, for detecting one or more than one ground fault currents. The core is composed of a metal alloy which is at least about 90 percent glassy and which consists essentially of a composition having the formula Co.sub.a Fe.sub.b Ni.sub.c M.sub.d B.sub.e Si.sub.f where M is at least one selected from a group consisting of Cr, Mo, Mn and Nb, the quantity a, b, c, d, e and f are in atom percent and the sum (a+b+c+d+e+f) is equal to 100 where "a" ranges from about 66 to 71, "b" ranges from about 2.5 to 4.5, "c" ranges from about 0 to 3, "d" ranges from about 0 to 2 except when M=Mn in which case "d" ranges from about 0 to 4, "e" ranges from about 6 to 24 and "f" ranges from about 0 to 19, with the proviso that the sum of "a", "b" and "c" ranges from about 72 to 76 and the sum of "e" and "f" ranges from about 25 to 27, said alloy having the form of a ribbon and having been heat-treated to induce Perminvar-like characteristics thereof. An interruption mechanism operates in response to a signal or more than one signals from the detecting mechanism to interrupt the supply current or currents.
    • 接地故障断续器适于连接到具有电源电流和回流电流的电路。 断路器具有用于检测一个或多于一个接地故障电流的检测机构,包括一个或多个核心。 芯由金属合金构成,其为玻璃状,至少约90%,其基本上由具有式CoaFebNicMdBeSif的组合物组成,其中M为选自Cr,Mo,Mn和Nb中的至少一种,其量a ,b,c,d,e和f为原子百分数,并且(a + b + c + d + e + f)之和等于100,其中“a”为约66至71,“b” 约2.5至4.5,“c”为约0至3,“d”的范围为约0至2,但是当M = Mn时,在这种情况下,“d”为约0至4,“e”为约6至 24和“f”的范围为约0至19,条件是“a”,“b”和“c”之和为约72至76,“e”和“f”之和为约 如图25至27所示,所述合金具有带状的形状,并经过热处理以诱发其类似于Perminvar的特征。 中断机构响应于来自检测机构的信号或多于一个的信号而操作以中断供电电流或电流。