Patent search ap:("ASEA AB") AND inv:"LARS HED" Page 1

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发明授权
Direct current presaturated current transformer arrangement 失效
Title translation: 直流预饱和电流互感器布置

公开(公告)号：US2855562A

公开(公告)日：1958-10-07

申请号：US60972956

申请日：1956-09-13

Applicant: ASEA AB

Inventor： LARS HED

IPC: G01R19/20 , H02P9/32

CPC classification number: H02P9/32 , G01R19/20

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