JPS5684561A - Device for selective measurement - Google Patents

Device for selective measurement

Info

Publication number
JPS5684561A
JPS5684561A JP16222879A JP16222879A JPS5684561A JP S5684561 A JPS5684561 A JP S5684561A JP 16222879 A JP16222879 A JP 16222879A JP 16222879 A JP16222879 A JP 16222879A JP S5684561 A JPS5684561 A JP S5684561A
Authority
JP
Japan
Prior art keywords
outputs
conversion circuit
transformers
input
ntr
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
JP16222879A
Other languages
Japanese (ja)
Inventor
Hiroshi Ueda
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 JP16222879A priority Critical patent/JPS5684561A/en
Publication of JPS5684561A publication Critical patent/JPS5684561A/en
Pending legal-status Critical Current

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  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Abstract

PURPOSE: To miniaturize the device and reduce the load for a transformer for instruments by separating an input transformer of a current converter from a conversion circuit thereof and by applying the conversion circuit for a common use for all supply lines.
CONSTITUTION: The outputs from a plurality of current transformers 1c, 2c... nc provided at measuring points in systems 1L, 2L... nL are given through the intermediary of input transformers 1TR, 2TR... nTR to resistances 1R, 2R... nR operating as scale converters, respectively. The resistance 1R, 2R... nR convert the outputs of the input transformers 1TR, 2TR... nTR into scales in accordance with the ratios of transformation of the current transformers 1c, 2c... nc provided at the measuring points in the systems. The outputs of the resistances 1R, 2R... nR are selected by selective relay contact points 1R, 2R... nR and inputted to a conversion circuit part C.
COPYRIGHT: (C)1981,JPO&Japio
JP16222879A 1979-12-13 1979-12-13 Device for selective measurement Pending JPS5684561A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16222879A JPS5684561A (en) 1979-12-13 1979-12-13 Device for selective measurement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16222879A JPS5684561A (en) 1979-12-13 1979-12-13 Device for selective measurement

Publications (1)

Publication Number Publication Date
JPS5684561A true JPS5684561A (en) 1981-07-09

Family

ID=15750399

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16222879A Pending JPS5684561A (en) 1979-12-13 1979-12-13 Device for selective measurement

Country Status (1)

Country Link
JP (1) JPS5684561A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4931255A (en) * 1972-06-19 1974-03-20
JPS5380282A (en) * 1976-12-24 1978-07-15 Fuji Electric Co Ltd Method and apparatus for measuring of a.c. voltage and current including distorted waveforms

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4931255A (en) * 1972-06-19 1974-03-20
JPS5380282A (en) * 1976-12-24 1978-07-15 Fuji Electric Co Ltd Method and apparatus for measuring of a.c. voltage and current including distorted waveforms

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