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JPS52122455A - Detecting system for contact opening and closing abnormality - Google Patents

Detecting system for contact opening and closing abnormality

Info

Publication number
JPS52122455A
JPS52122455A JP3871376A JP3871376A JPS52122455A JP S52122455 A JPS52122455 A JP S52122455A JP 3871376 A JP3871376 A JP 3871376A JP 3871376 A JP3871376 A JP 3871376A JP S52122455 A JPS52122455 A JP S52122455A
Authority
JP
Japan
Prior art keywords
contact
contact opening
detecting system
closing abnormality
opening
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
JP3871376A
Other languages
Japanese (ja)
Inventor
Yukio Urushibata
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP3871376A priority Critical patent/JPS52122455A/en
Publication of JPS52122455A publication Critical patent/JPS52122455A/en
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: To realize a contact opening and closing abnormality detection system with which a uniform circuit designing possible regardless of forms of load current which flows in the contact, and with which the opening and closing state of relay contact is accurately recognized by means of installing a transfer contact.
COPYRIGHT: (C)1977,JPO&Japio
JP3871376A 1976-04-08 1976-04-08 Detecting system for contact opening and closing abnormality Pending JPS52122455A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3871376A JPS52122455A (en) 1976-04-08 1976-04-08 Detecting system for contact opening and closing abnormality

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3871376A JPS52122455A (en) 1976-04-08 1976-04-08 Detecting system for contact opening and closing abnormality

Publications (1)

Publication Number Publication Date
JPS52122455A true JPS52122455A (en) 1977-10-14

Family

ID=12532952

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3871376A Pending JPS52122455A (en) 1976-04-08 1976-04-08 Detecting system for contact opening and closing abnormality

Country Status (1)

Country Link
JP (1) JPS52122455A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5617852U (en) * 1979-07-19 1981-02-17
JP2016143565A (en) * 2015-02-02 2016-08-08 オムロン株式会社 Relay unit and method for controlling relay circuit
JP2020047556A (en) * 2018-09-21 2020-03-26 株式会社デンソーウェーブ Relay failure diagnosis device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5617852U (en) * 1979-07-19 1981-02-17
JP2016143565A (en) * 2015-02-02 2016-08-08 オムロン株式会社 Relay unit and method for controlling relay circuit
US10049842B2 (en) 2015-02-02 2018-08-14 Omron Corporation Relay unit for performing insulation diagnosis and method for controlling same
JP2020047556A (en) * 2018-09-21 2020-03-26 株式会社デンソーウェーブ Relay failure diagnosis device
US11360145B2 (en) 2018-09-21 2022-06-14 Denso Wave Incorporated Relay fault diagnosis device

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