JPS5292374A - Power circuit breaker with contacting state monitor - Google Patents

Power circuit breaker with contacting state monitor

Info

Publication number
JPS5292374A
JPS5292374A JP850876A JP850876A JPS5292374A JP S5292374 A JPS5292374 A JP S5292374A JP 850876 A JP850876 A JP 850876A JP 850876 A JP850876 A JP 850876A JP S5292374 A JPS5292374 A JP S5292374A
Authority
JP
Japan
Prior art keywords
circuit breaker
power circuit
state monitor
contacting state
contacting
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
JP850876A
Other languages
Japanese (ja)
Inventor
Kouichi Nakamura
Masaru Fukuoka
Shinsuke Hirako
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 JP850876A priority Critical patent/JPS5292374A/en
Publication of JPS5292374A publication Critical patent/JPS5292374A/en
Pending legal-status Critical Current

Links

Landscapes

  • Circuit Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
JP850876A 1976-01-30 1976-01-30 Power circuit breaker with contacting state monitor Pending JPS5292374A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP850876A JPS5292374A (en) 1976-01-30 1976-01-30 Power circuit breaker with contacting state monitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP850876A JPS5292374A (en) 1976-01-30 1976-01-30 Power circuit breaker with contacting state monitor

Publications (1)

Publication Number Publication Date
JPS5292374A true JPS5292374A (en) 1977-08-03

Family

ID=11695055

Family Applications (1)

Application Number Title Priority Date Filing Date
JP850876A Pending JPS5292374A (en) 1976-01-30 1976-01-30 Power circuit breaker with contacting state monitor

Country Status (1)

Country Link
JP (1) JPS5292374A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58178929A (en) * 1982-04-13 1983-10-20 日新電機株式会社 Method of deciding lifetime of contact

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58178929A (en) * 1982-04-13 1983-10-20 日新電機株式会社 Method of deciding lifetime of contact

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