JPS54113842A - Anti-time eddy current relay - Google Patents

Anti-time eddy current relay

Info

Publication number
JPS54113842A
JPS54113842A JP2123378A JP2123378A JPS54113842A JP S54113842 A JPS54113842 A JP S54113842A JP 2123378 A JP2123378 A JP 2123378A JP 2123378 A JP2123378 A JP 2123378A JP S54113842 A JPS54113842 A JP S54113842A
Authority
JP
Japan
Prior art keywords
output
time
level
generating circuit
function generating
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
JP2123378A
Other languages
Japanese (ja)
Inventor
Hiroshi Ando
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 JP2123378A priority Critical patent/JPS54113842A/en
Publication of JPS54113842A publication Critical patent/JPS54113842A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make a relay to have strong anti-time and super anti-time characteristics, by providing a function generating circuit whose input is direct current voltage in which output of a transformer proportioned to alternating current input is converted to direct current, and forming so as to vary detected level of a level detector with output of this function generating circuit.
CONSTITUTION: An amplifier 13 of a function generating circuit 8 generates output a3 in which output a2 of an amplifier 12 and terminal voltage E2 are summed up. If this output a3 is used as level setting signal of a level detector 6, input current of a current transformer, or output voltage of commutation smoothing circuit 3, is greater, detection with the level detector 6 is faster. Therefore, so-called strong anti- time or super anti-time characteristics, or operation time is faster than that of constant speed of detecting level can be obtained.
COPYRIGHT: (C)1979,JPO&Japio
JP2123378A 1978-02-24 1978-02-24 Anti-time eddy current relay Pending JPS54113842A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2123378A JPS54113842A (en) 1978-02-24 1978-02-24 Anti-time eddy current relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2123378A JPS54113842A (en) 1978-02-24 1978-02-24 Anti-time eddy current relay

Publications (1)

Publication Number Publication Date
JPS54113842A true JPS54113842A (en) 1979-09-05

Family

ID=12049305

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2123378A Pending JPS54113842A (en) 1978-02-24 1978-02-24 Anti-time eddy current relay

Country Status (1)

Country Link
JP (1) JPS54113842A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5893425A (en) * 1981-11-26 1983-06-03 西芝電機株式会社 Stationary overcurrent relay

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4719353A (en) * 1971-02-18 1972-09-21

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4719353A (en) * 1971-02-18 1972-09-21

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5893425A (en) * 1981-11-26 1983-06-03 西芝電機株式会社 Stationary overcurrent relay

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