JPS54131721A - Zero current transformer - Google Patents

Zero current transformer

Info

Publication number
JPS54131721A
JPS54131721A JP3852378A JP3852378A JPS54131721A JP S54131721 A JPS54131721 A JP S54131721A JP 3852378 A JP3852378 A JP 3852378A JP 3852378 A JP3852378 A JP 3852378A JP S54131721 A JPS54131721 A JP S54131721A
Authority
JP
Japan
Prior art keywords
sleeve
wire
iron core
case
run
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP3852378A
Other languages
Japanese (ja)
Inventor
Rihachi Arakida
Hiroshi Koike
Yoshiro Watanabe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP3852378A priority Critical patent/JPS54131721A/en
Publication of JPS54131721A publication Critical patent/JPS54131721A/en
Pending legal-status Critical Current

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Landscapes

  • Transformers For Measuring Instruments (AREA)

Abstract

PURPOSE: To minimize the clearance between the electric wire and the sleeve by tightly contacting the wire with the sleeve through thermal deformation of the sleeve after it is run through the iron core and the sleeve which is formed at the bottom center of a case made of a thermoplastic resin projecting outside.
CONSTITUTION: A sleeve 6 is formed at the bottom 5 of a thermoplastic resin case 4. A wire T is run through an iron core 1 and a sleeve 6. Then, the sleeve 6 is thermally deformed so as to bring the wire into close contact with an internal hole thereof and an insulating material such as silicon rubber and synthetic resin is injected to fill the hole firmly. This eliminates play of the iron core in the case 4 thus allowing close contact between the wire T and insertion section 6.
COPYRIGHT: (C)1979,JPO&Japio
JP3852378A 1978-03-31 1978-03-31 Zero current transformer Pending JPS54131721A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3852378A JPS54131721A (en) 1978-03-31 1978-03-31 Zero current transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3852378A JPS54131721A (en) 1978-03-31 1978-03-31 Zero current transformer

Publications (1)

Publication Number Publication Date
JPS54131721A true JPS54131721A (en) 1979-10-13

Family

ID=12527625

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3852378A Pending JPS54131721A (en) 1978-03-31 1978-03-31 Zero current transformer

Country Status (1)

Country Link
JP (1) JPS54131721A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4491818A (en) * 1983-03-30 1985-01-01 Zenith Electronics Corporation Pickup coil assembly with coaxial feed
JP2010056422A (en) * 2008-08-29 2010-03-11 Midori Anzen Co Ltd Current transformer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4491818A (en) * 1983-03-30 1985-01-01 Zenith Electronics Corporation Pickup coil assembly with coaxial feed
JP2010056422A (en) * 2008-08-29 2010-03-11 Midori Anzen Co Ltd Current transformer

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