公开(公告)号：US11875933B2

公开(公告)日：2024-01-16

申请号：US16962437

申请日：2018-12-18

Applicant: LS ELECTRIC CO., LTD.

Inventor： Ji-Hoon Ma

IPC: H01F38/30 ,  H01F27/02 ,  H02B13/035 ,  H01F27/36

CPC classification number: H01F38/30 ,  H01F27/02 ,  H01F27/363 ,  H02B13/0356

Abstract: A switchboard is provided via a terminal bushing; a switchboard terminal coupled to the terminal bushing; a metering transformer bushing which is installed or released from the front part thereof through a breaker chamber, covers the switchboard terminal, and is inserted into the terminal bushing; and a metering transformer which is fastened to the metering transformer bushing and disposed on the outer circumference of the metering transformer bushing. The metering transformer includes at least one terminal that faces forward, and the metering transformer bushing may include an opening for exposing the at least one terminal to the front thereof.