CURRENT TRANSFORMER AND METHOD FOR MANUFACTURING CURRENT TRANSFORMER

Title:

CURRENT TRANSFORMER AND METHOD FOR MANUFACTURING CURRENT TRANSFORMER

Document Type and Number:

WIPO Patent Application WO/2021/019963

Kind Code:

A1

Abstract:

The present invention provides a current transformer having superior temperature characteristics and capable of reducing tolerance by highly accurately adjusting an output voltage by means of gap adjustment, and a method for manufacturing the same. A current transformer core component 31 of the present invention is provided with: an E-shaped core 40 comprising three legs 41, 42, 41 formed of magnetic steel sheets extending substantially in parallel, and a connecting portion 43 connecting the ends of the legs; and an I-shaped core 50 formed of a magnetic steel sheet and having substantially the same length as the connecting portion, wherein the I-shaped core is overlapped on and integrated with the connecting portion of the E-shaped core.

Inventors:

IMAZATO YUICHI (JP)
KASATANI KAZUHIRO (JP)
MORI KAZUSA (JP)

Application Number:

PCT/JP2020/024549

Publication Date:

February 04, 2021

Filing Date:

June 23, 2020

Export Citation:

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Assignee:

SHT CORPORATION LTD (JP)

International Classes:

H01F30/10; H01F27/245; H01F38/30; H01F41/00

Foreign References:

JPS53121413U	1978-09-27
JP2018163952A	2018-10-18
JPS53107817U	1978-08-30
JPH11186061A	1999-07-09
JP2005203445A	2005-07-28
JPH08213255A	1996-08-20
JPH0864428A	1996-03-08
JPH08250320A	1996-09-27
JPS6318824U	1988-02-08