PURPOSE: To reduce vibration and noise and to suppress vibration due to magnetic attraction force between a yoke core and a side leg by enabling clamping force due to a clamping stud to act uniformly on a core leg. ;CONSTITUTION: A plurality of block cores 1a are piled up via magnetic gaps 2 to constitute a core leg 1, which is wound with a winding 3, and yoke cores 4, 5 are arranged which are formed by piling up silicon steel plates on top and bottom parts of the side leg 1 and its both sides. Further, the core leg 1 is clamped with a clamping 8 via these yoke cores 4, 5, and the yokes 4, 5 and the side leg 6 are gapped. In such a single-phase three-leg core type gapped-core type reactor, the junction between the top and bottom yoke cores 4, 5 and both side legs 6 is coupled with a clamping stud 15 between a yoke core clamping metal 12 and a clamping plate 13 via a spring 14 which can absorb shrinks due to changes in temperature and the like.;COPYRIGHT: (C)1993,JPO&Japio
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