| 摘要 |
In a current transformer of the erect type wherein the primary conductor provided with a predetermined main insulator is extended from one of the primary terminals disposed in the upper oil tank, is passed through the interior of a porcelain tube, is interlinked with the secondary side of the current transformer as is arranged in the lower oil tank, and is returned to the other primary terminal disposed in the upper oil tank, and wherein an insulating liquid is filled in the current transformer, a current transformer wherein the primary conductor is hollow and is formed of two unit hollow conductors substantially different in the amount of generated heat per unit length, and wherein the insulating liquid is circulated in the hollow primary conductor.
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