公开(公告)号：US20050018368A1

公开(公告)日：2005-01-27

申请号：US10868893

申请日：2004-06-17

Applicant: Tae Ko ,  Seung Lee ,  Min Ahn ,  Duck Bae ,  Hyoung Kang

Inventor： Tae Ko ,  Seung Lee ,  Min Ahn ,  Duck Bae ,  Hyoung Kang

IPC: H01F37/00 ,  H02H7/00 ,  H02H9/02

CPC classification number: H02H9/023 ,  H01F2006/001 ,  H02H7/001 ,  Y02E40/68 ,  Y02E40/69

Abstract: A design of a bobbin for stacking a superconducting coil used in a DC reactor of a current limiting device for limiting fault current of an electric power system, is provided. The design of the bobbin overcomes difficulties of windings and problems including insulation between coils, difficulty in design of shape of bobbin, increase of joints, and degradation of stability caused during transposing of stacked windings of the superconducting coil. A superconducting coil is not quenched at a normal state, but the superconducting coil is quenched upon occurrence of fault current. When such is a case, current generally flows along the lowest resistance path, and the portion of the superconducting coil is overheated. The bobbin is equipped with a supplementary winding of conducting coil at the outer portion of the bobbin such that the supplementary winding of conducing coil bears the current of early stage of fault current and the volume of current flowing to the superconducting coil is decreased when the current is higher than the threshold current, thereby protecting the superconducting coil.

Abstract translation: 提供了一种用于层叠用于限制电力系统的故障电流的限流装置的直流电抗器中的超导线圈的线轴的设计。 筒管的设计克服了绕组的困难，包括线圈之间的绝缘，线圈形状的设计难度，接头的增加以及在超导线圈的堆叠绕组的转置期间引起的稳定性的降低等问题。 超导线圈在正常状态下不被淬火，但是在发生故障电流时超导线圈被淬火。 当这样的情况下，电流通常沿着最低电阻路径流动，并且超导线圈的部分过热。 线轴在线轴的外部配备有线圈的辅助绕组，使得导线线圈的辅助绕组承受故障电流的早期电流，并且当电流流过超导线圈的电流的体积减小时 高于阈值电流，从而保护超导线圈。