JPS5684561A - Device for selective measurement - Google Patents
Device for selective measurementInfo
- 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
Links
Landscapes
- 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
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)
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 |
-
1979
- 1979-12-13 JP JP16222879A patent/JPS5684561A/en active Pending
Patent Citations (2)
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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