JPS54145946A - Preventing maintenance method of circuit breaker - Google Patents

Preventing maintenance method of circuit breaker

Info

Publication number
JPS54145946A
JPS54145946A JP5412478A JP5412478A JPS54145946A JP S54145946 A JPS54145946 A JP S54145946A JP 5412478 A JP5412478 A JP 5412478A JP 5412478 A JP5412478 A JP 5412478A JP S54145946 A JPS54145946 A JP S54145946A
Authority
JP
Japan
Prior art keywords
section
electric signal
shut
contacts
light
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
JP5412478A
Other languages
Japanese (ja)
Inventor
Takeshi Nonomura
Akira Morita
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP5412478A priority Critical patent/JPS54145946A/en
Publication of JPS54145946A publication Critical patent/JPS54145946A/en
Pending legal-status Critical Current

Links

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Keying Circuit Devices (AREA)

Abstract

PURPOSE: To make possible accurate checking of action of the contact at the shut-off section by two conversions into electric signals comprising one at the high potential section where the situation of the contact the shut-off section is initially converted into an electric signal and the other at the low potential section where an optical signal is converted into an electric signal by a photoelectric element after transmitted through an optical conductor via conversion of the electric signal by a light-emitting element after the initial conversion.
CONSTITUTION: To convert the action of contacts 4 and 5 at the shut-off section into an electric signal directly at the high potential section, a voltage dividing capacitor 4 in parallel to the contacts are provided with a voltage dividing capacitor (impedance body) in series to ensure the voltage required for light-emitting elements 6 and 7 for example when the contacts 4 and 5 open. Photoelectric elements 10 and 11 and amplifiers 13 and 12 are provided at the low potential section through fibers 8 and 9. Accordingly, while the contacts 4 and 5 are open, light-emitting element 6 and 7 emit-light so that the optical signal is converted with the photoelectric elements to an electric signal. In this manner, the action of the contact at shut-off section can be checked directly on the high potential side, thereby improving the reliability.
COPYRIGHT: (C)1979,JPO&Japio
JP5412478A 1978-05-09 1978-05-09 Preventing maintenance method of circuit breaker Pending JPS54145946A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5412478A JPS54145946A (en) 1978-05-09 1978-05-09 Preventing maintenance method of circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5412478A JPS54145946A (en) 1978-05-09 1978-05-09 Preventing maintenance method of circuit breaker

Publications (1)

Publication Number Publication Date
JPS54145946A true JPS54145946A (en) 1979-11-14

Family

ID=12961840

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5412478A Pending JPS54145946A (en) 1978-05-09 1978-05-09 Preventing maintenance method of circuit breaker

Country Status (1)

Country Link
JP (1) JPS54145946A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109116223A (en) * 2018-07-19 2019-01-01 格力电器（武汉）有限公司 A kind of detection device of optoelectronic switch plate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109116223A (en) * 2018-07-19 2019-01-01 格力电器（武汉）有限公司 A kind of detection device of optoelectronic switch plate

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