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JPS5425450A - Protective relay - Google Patents

Protective relay

Info

Publication number
JPS5425450A
JPS5425450A JP9030077A JP9030077A JPS5425450A JP S5425450 A JPS5425450 A JP S5425450A JP 9030077 A JP9030077 A JP 9030077A JP 9030077 A JP9030077 A JP 9030077A JP S5425450 A JPS5425450 A JP S5425450A
Authority
JP
Japan
Prior art keywords
protective relay
relay
time limit
circuit
operating characteristic
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
JP9030077A
Other languages
Japanese (ja)
Inventor
Mitsuo Sawairi
Yoshihiro Takeshima
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 JP9030077A priority Critical patent/JPS5425450A/en
Publication of JPS5425450A publication Critical patent/JPS5425450A/en
Pending legal-status Critical Current

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  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: To form a static type protective relay having a characteristics similar to the operating characteristic of electromagnetic type overcurrent relay by providing voltage suppressing element between level judging circuit and time limit circuit.
COPYRIGHT: (C)1979,JPO&Japio
JP9030077A 1977-07-29 1977-07-29 Protective relay Pending JPS5425450A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9030077A JPS5425450A (en) 1977-07-29 1977-07-29 Protective relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9030077A JPS5425450A (en) 1977-07-29 1977-07-29 Protective relay

Publications (1)

Publication Number Publication Date
JPS5425450A true JPS5425450A (en) 1979-02-26

Family

ID=13994677

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9030077A Pending JPS5425450A (en) 1977-07-29 1977-07-29 Protective relay

Country Status (1)

Country Link
JP (1) JPS5425450A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5914317A (en) * 1982-07-14 1984-01-25 富士電機株式会社 Counter time limiting characteristic overcurrent relay
JPH0464938U (en) * 1990-10-17 1992-06-04

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5914317A (en) * 1982-07-14 1984-01-25 富士電機株式会社 Counter time limiting characteristic overcurrent relay
JPH0464938U (en) * 1990-10-17 1992-06-04

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