JPS5413946A - Carrier protective relaying equipment - Google Patents

Carrier protective relaying equipment

Info

Publication number
JPS5413946A
JPS5413946A JP7789377A JP7789377A JPS5413946A JP S5413946 A JPS5413946 A JP S5413946A JP 7789377 A JP7789377 A JP 7789377A JP 7789377 A JP7789377 A JP 7789377A JP S5413946 A JPS5413946 A JP S5413946A
Authority
JP
Japan
Prior art keywords
protective relaying
carrier protective
relaying equipment
frequency
equipment
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
JP7789377A
Other languages
Japanese (ja)
Inventor
Seishi Nomura
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 JP7789377A priority Critical patent/JPS5413946A/en
Publication of JPS5413946A publication Critical patent/JPS5413946A/en
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: To prevent influence to the opposite end even when modulated frequency at transmitting sidd is influenced by power source variation, by transformer coupling the connection after demodulating frequency modualted signal at opposite receiving section.
COPYRIGHT: (C)1979,JPO&Japio
JP7789377A 1977-07-01 1977-07-01 Carrier protective relaying equipment Pending JPS5413946A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7789377A JPS5413946A (en) 1977-07-01 1977-07-01 Carrier protective relaying equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7789377A JPS5413946A (en) 1977-07-01 1977-07-01 Carrier protective relaying equipment

Publications (1)

Publication Number Publication Date
JPS5413946A true JPS5413946A (en) 1979-02-01

Family

ID=13646749

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7789377A Pending JPS5413946A (en) 1977-07-01 1977-07-01 Carrier protective relaying equipment

Country Status (1)

Country Link
JP (1) JPS5413946A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0497436U (en) * 1981-01-26 1992-08-24

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0497436U (en) * 1981-01-26 1992-08-24

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