JPS5274848A - Eddy current protective device - Google Patents

Eddy current protective device

Info

Publication number
JPS5274848A
JPS5274848A JP15056575A JP15056575A JPS5274848A JP S5274848 A JPS5274848 A JP S5274848A JP 15056575 A JP15056575 A JP 15056575A JP 15056575 A JP15056575 A JP 15056575A JP S5274848 A JPS5274848 A JP S5274848A
Authority
JP
Japan
Prior art keywords
eddy current
protective device
short
current protective
current
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
JP15056575A
Other languages
Japanese (ja)
Inventor
Kenji Nanto
Nobuo Sakai
Shoji Aso
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP15056575A priority Critical patent/JPS5274848A/en
Publication of JPS5274848A publication Critical patent/JPS5274848A/en
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: Taking into a consideration the fact that a short-circuited current has a rapid build-up characteristic different from other varying currents, the differential amount of short-circuited current i.e. a varying rate to time is detected to form a current limitig reactor of a low cost and small construction, having a short operating time.
COPYRIGHT: (C)1977,JPO&Japio
JP15056575A 1975-12-19 1975-12-19 Eddy current protective device Pending JPS5274848A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15056575A JPS5274848A (en) 1975-12-19 1975-12-19 Eddy current protective device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15056575A JPS5274848A (en) 1975-12-19 1975-12-19 Eddy current protective device

Publications (1)

Publication Number Publication Date
JPS5274848A true JPS5274848A (en) 1977-06-23

Family

ID=15499649

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15056575A Pending JPS5274848A (en) 1975-12-19 1975-12-19 Eddy current protective device

Country Status (1)

Country Link
JP (1) JPS5274848A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS573517A (en) * 1980-06-09 1982-01-09 Mitsubishi Electric Corp Shortcircuit protecting device
JPS58218819A (en) * 1982-06-11 1983-12-20 愛知電機株式会社 Dc high voltage load protecting device
JPS59169547U (en) * 1983-04-28 1984-11-13 新神戸電機株式会社 Current limiting reactor device
JP2012065459A (en) * 2010-09-16 2012-03-29 Nippon Telegr & Teleph Corp <Ntt> Overcurrent detecting device, and overcurrent detecting method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215896A (en) * 1962-10-04 1965-11-02 Gen Electric Fast response overload protection circuit
JPS4935838A (en) * 1972-08-07 1974-04-03
JPS50131051A (en) * 1974-04-03 1975-10-16

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215896A (en) * 1962-10-04 1965-11-02 Gen Electric Fast response overload protection circuit
JPS4935838A (en) * 1972-08-07 1974-04-03
JPS50131051A (en) * 1974-04-03 1975-10-16

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS573517A (en) * 1980-06-09 1982-01-09 Mitsubishi Electric Corp Shortcircuit protecting device
JPS58218819A (en) * 1982-06-11 1983-12-20 愛知電機株式会社 Dc high voltage load protecting device
JPH0145808B2 (en) * 1982-06-11 1989-10-04 Aichi Electric Co Ltd
JPS59169547U (en) * 1983-04-28 1984-11-13 新神戸電機株式会社 Current limiting reactor device
JP2012065459A (en) * 2010-09-16 2012-03-29 Nippon Telegr & Teleph Corp <Ntt> Overcurrent detecting device, and overcurrent detecting method

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