JPS51130850A - Phase comparison ratio,differential bus protective system - Google Patents

Phase comparison ratio,differential bus protective system

Info

Publication number
JPS51130850A
JPS51130850A JP5444575A JP5444575A JPS51130850A JP S51130850 A JPS51130850 A JP S51130850A JP 5444575 A JP5444575 A JP 5444575A JP 5444575 A JP5444575 A JP 5444575A JP S51130850 A JPS51130850 A JP S51130850A
Authority
JP
Japan
Prior art keywords
phase comparison
protective system
differential bus
comparison ratio
bus protective
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
JP5444575A
Other languages
Japanese (ja)
Inventor
Fumio Iwatani
Takashi Kosaka
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
Hitachi Industry and Control Solutions Co Ltd
Original Assignee
Hitachi Engineering Co Ltd
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 Engineering Co Ltd, Hitachi Ltd filed Critical Hitachi Engineering Co Ltd
Priority to JP5444575A priority Critical patent/JPS51130850A/en
Publication of JPS51130850A publication Critical patent/JPS51130850A/en
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: A bus protective system of a phase comparison ratio-differential type capable of having an optional phase-ratio property, without imposing an applicable limit on the bus construction.
COPYRIGHT: (C)1976,JPO&Japio
JP5444575A 1975-05-09 1975-05-09 Phase comparison ratio,differential bus protective system Pending JPS51130850A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5444575A JPS51130850A (en) 1975-05-09 1975-05-09 Phase comparison ratio,differential bus protective system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5444575A JPS51130850A (en) 1975-05-09 1975-05-09 Phase comparison ratio,differential bus protective system

Publications (1)

Publication Number Publication Date
JPS51130850A true JPS51130850A (en) 1976-11-13

Family

ID=12970892

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5444575A Pending JPS51130850A (en) 1975-05-09 1975-05-09 Phase comparison ratio,differential bus protective system

Country Status (1)

Country Link
JP (1) JPS51130850A (en)

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