公开(公告)号：US11913984B2

公开(公告)日：2024-02-27

申请号：US17442672

申请日：2019-07-19

Applicant: LS ELECTRIC CO., LTD.

Inventor： Seung Wook Lee

IPC: G01R31/12 ,  H01F27/24 ,  H01F27/36 ,  H01F27/29

CPC classification number: G01R31/1227 ,  H01F27/24 ,  H01F27/29 ,  H01F27/36

Abstract: A device for testing insulation properties of a transformer may be provided by: a low-voltage winding part and a high-voltage winding part that are arranged concentrically with each other; an iron core for testing combined with the low-voltage winding part and the high-voltage winding part and adjustable in height according to the height of low-voltage winding part and the high-voltage winding part; a low-voltage terminal part connected to both ends of the winding of the low-voltage winding part; and a high-voltage terminal part connected to both ends of the winding of the high-voltage winding part.