JPS56168564A - Automaic measuring apparatus for load characteristic - Google Patents

Automaic measuring apparatus for load characteristic

Info

Publication number
JPS56168564A
JPS56168564A JP7306980A JP7306980A JPS56168564A JP S56168564 A JPS56168564 A JP S56168564A JP 7306980 A JP7306980 A JP 7306980A JP 7306980 A JP7306980 A JP 7306980A JP S56168564 A JPS56168564 A JP S56168564A
Authority
JP
Japan
Prior art keywords
voltage
starting
buffer memory
load
frequency
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
JP7306980A
Other languages
Japanese (ja)
Inventor
Hideyuki Ino
Kunitaro Kikuchi
Yosuke Inoue
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.)
Panasonic Mobile Communications Co Ltd
Tokyo Electric Power Co Holdings Inc
Original Assignee
Tokyo Electric Power Co Inc
Matsushita Communication Industrial 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 Tokyo Electric Power Co Inc, Matsushita Communication Industrial Co Ltd filed Critical Tokyo Electric Power Co Inc
Priority to JP7306980A priority Critical patent/JPS56168564A/en
Publication of JPS56168564A publication Critical patent/JPS56168564A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00—Arrangements for displaying electric variables or waveforms
    • G01R13/04—Arrangements for displaying electric variables or waveforms for producing permanent records

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

PURPOSE:To make it possible to record the change in load characteristics due to a system failure and the secular characteristic change, by a method wherein the voltage, current and frequency deviations of load are once stored in a buffer memory and then recorded on a magnetic tape or the like. CONSTITUTION:The voltage and currents from an electric power system, inputted through auxiliary CTs, auxiliary PTs and low-pass filters LPF, are sampled by means of an analog scanner As in a time-division manner and stored in a buffer memory 22 through an A/D converter 21. The frequency deviation detecting part 24 detects the frequency deviation per cycle, while the starting deciding part 25 detects the voltage and frequency changes for starting recording. According to the instructions from the starting deciding part 25, the recording part 3 records the data transferred from the buffer memory 22 on a memory 31 through an interface 32. Thereby, complicated load fluctuations in the electric power system and complicated load conditions of large users can be made clear.
JP7306980A 1980-05-30 1980-05-30 Automaic measuring apparatus for load characteristic Pending JPS56168564A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7306980A JPS56168564A (en) 1980-05-30 1980-05-30 Automaic measuring apparatus for load characteristic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7306980A JPS56168564A (en) 1980-05-30 1980-05-30 Automaic measuring apparatus for load characteristic

Publications (1)

Publication Number Publication Date
JPS56168564A true JPS56168564A (en) 1981-12-24

Family

ID=13507671

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7306980A Pending JPS56168564A (en) 1980-05-30 1980-05-30 Automaic measuring apparatus for load characteristic

Country Status (1)

Country Link
JP (1) JPS56168564A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0161668U (en) * 1987-10-14 1989-04-19

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4882871A (en) * 1972-01-19 1973-11-06
JPS5195264A (en) * 1975-02-19 1976-08-20 Kirokukeino jidotenkenhoshiki

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4882871A (en) * 1972-01-19 1973-11-06
JPS5195264A (en) * 1975-02-19 1976-08-20 Kirokukeino jidotenkenhoshiki

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0161668U (en) * 1987-10-14 1989-04-19

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