| 摘要 |
<p>PURPOSE: To provide a current transformer which can change over a current transformation ratio on the primary side. CONSTITUTION: A primary conductor 1 for a current-transformer body is constituted of four hairpin-shaped unit primary conductors 1A to 1D, and eight terminals K1' to K4', L1' to L4' are installed at both ends of the unit primary conductors 1A to 1D. An insulating lid plate 23 which closes the upper-end opening part of a container 3 in which the current-transformer body is housed is installed. Eight lead conductors 30L1, 30L2,... are installed in a state that they are buried in, and installed at, the lid plate 23 partly, and end parts, which are situated inside the container 3, of the respective lead conductors and corresponding terminals of the primary conductor 1 are slid and brought into contact. External terminals K1,..., L1, L2,... L4 are installed at end parts, which are situated outside the container 3, of the eight lead conductors, the prescribed external terminals are connected by a connecting bar 32, and the unit primary conductors 1A to 1D are connected in series, in parallel or in serial-parallel.</p> |
