JPS5421548A - Phase comparison relay system - Google Patents

Phase comparison relay system

Info

Publication number
JPS5421548A
JPS5421548A JP8566177A JP8566177A JPS5421548A JP S5421548 A JPS5421548 A JP S5421548A JP 8566177 A JP8566177 A JP 8566177A JP 8566177 A JP8566177 A JP 8566177A JP S5421548 A JPS5421548 A JP S5421548A
Authority
JP
Japan
Prior art keywords
phase comparison
relay system
comparison relay
harmonics
irrespective
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.)
Granted
Application number
JP8566177A
Other languages
Japanese (ja)
Other versions
JPS5712374B2 (en
Inventor
Yuji Oki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP8566177A priority Critical patent/JPS5421548A/en
Publication of JPS5421548A publication Critical patent/JPS5421548A/en
Publication of JPS5712374B2 publication Critical patent/JPS5712374B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: To permit reliable detection of a trouble irrespective of whether or not harmonics are present by arranging such that when a frequency component other than the fundamental frequency of a power system is detected the detection level is changed by controlling a phase comparison signal.
COPYRIGHT: (C)1979,JPO&Japio
JP8566177A 1977-07-19 1977-07-19 Phase comparison relay system Granted JPS5421548A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8566177A JPS5421548A (en) 1977-07-19 1977-07-19 Phase comparison relay system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8566177A JPS5421548A (en) 1977-07-19 1977-07-19 Phase comparison relay system

Publications (2)

Publication Number Publication Date
JPS5421548A true JPS5421548A (en) 1979-02-17
JPS5712374B2 JPS5712374B2 (en) 1982-03-10

Family

ID=13865002

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8566177A Granted JPS5421548A (en) 1977-07-19 1977-07-19 Phase comparison relay system

Country Status (1)

Country Link
JP (1) JPS5421548A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60180189A (en) * 1984-10-29 1985-09-13 セイコーエプソン株式会社 Connecting structure for electric element

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60180189A (en) * 1984-10-29 1985-09-13 セイコーエプソン株式会社 Connecting structure for electric element
JPS6127902B2 (en) * 1984-10-29 1986-06-27 Suwa Seikosha Kk

Also Published As

Publication number Publication date
JPS5712374B2 (en) 1982-03-10

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