| http://www.w3.org/ns/prov#value | - As described in connection with FIG. 6, when winding current in a winding associated with post member 612 (not shown in FIG. 7) rises to an appropriate current level, post member 612 will locally saturate from a first level 614 to a second level, for example a level indicated by dashed line 618 that is lower than first level 614 (FIG. 6).
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