JPS5416642A - Noise detection system for fm carrier relay transmission line - Google Patents

Noise detection system for fm carrier relay transmission line

Info

Publication number
JPS5416642A
JPS5416642A JP8239477A JP8239477A JPS5416642A JP S5416642 A JPS5416642 A JP S5416642A JP 8239477 A JP8239477 A JP 8239477A JP 8239477 A JP8239477 A JP 8239477A JP S5416642 A JPS5416642 A JP S5416642A
Authority
JP
Japan
Prior art keywords
transmission line
detection system
noise detection
relay transmission
carrier relay
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
JP8239477A
Other languages
Japanese (ja)
Inventor
Teruhisa Masayama
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP8239477A priority Critical patent/JPS5416642A/en
Publication of JPS5416642A publication Critical patent/JPS5416642A/en
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

PURPOSE: To correctly detect a noise of no simultaneous generation between each of channels, by supervising a change with a pilot signal overlapped on one end of transmission channel of each phase current wave form.
COPYRIGHT: (C)1979,JPO&Japio
JP8239477A 1977-07-08 1977-07-08 Noise detection system for fm carrier relay transmission line Pending JPS5416642A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8239477A JPS5416642A (en) 1977-07-08 1977-07-08 Noise detection system for fm carrier relay transmission line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8239477A JPS5416642A (en) 1977-07-08 1977-07-08 Noise detection system for fm carrier relay transmission line

Publications (1)

Publication Number Publication Date
JPS5416642A true JPS5416642A (en) 1979-02-07

Family

ID=13773361

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8239477A Pending JPS5416642A (en) 1977-07-08 1977-07-08 Noise detection system for fm carrier relay transmission line

Country Status (1)

Country Link
JP (1) JPS5416642A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63293220A (en) * 1987-05-25 1988-11-30 Hachiro Inoue Slime treating apparatus
JPH04108337U (en) * 1991-02-26 1992-09-18 日本電気株式会社 Signal terminal equipment for carrier protection relay

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5232549A (en) * 1975-09-08 1977-03-11 Mitsubishi Electric Corp Abnormality detection device of differential protection relay

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5232549A (en) * 1975-09-08 1977-03-11 Mitsubishi Electric Corp Abnormality detection device of differential protection relay

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63293220A (en) * 1987-05-25 1988-11-30 Hachiro Inoue Slime treating apparatus
JPH04108337U (en) * 1991-02-26 1992-09-18 日本電気株式会社 Signal terminal equipment for carrier protection relay

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