JPS5387277A - Phase difference detector - Google Patents

Phase difference detector

Info

Publication number
JPS5387277A
JPS5387277A JP116477A JP116477A JPS5387277A JP S5387277 A JPS5387277 A JP S5387277A JP 116477 A JP116477 A JP 116477A JP 116477 A JP116477 A JP 116477A JP S5387277 A JPS5387277 A JP S5387277A
Authority
JP
Japan
Prior art keywords
phase difference
difference detector
circuit
quantities
sampling
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
JP116477A
Other languages
Japanese (ja)
Other versions
JPS562310B2 (en
Inventor
Yoshiji Nii
Izumi Mitani
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
Tokyo Electric Power Co Holdings Inc
Original Assignee
Toshiba Corp
Tokyo Electric Power Co Inc
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 Electric Power Co Inc, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP116477A priority Critical patent/JPS5387277A/en
Publication of JPS5387277A publication Critical patent/JPS5387277A/en
Publication of JPS562310B2 publication Critical patent/JPS562310B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Measuring Phase Differences (AREA)

Abstract

PURPOSE: To detect whether two elecricity quantities are within a specified phase difference range or not without errors and without any restriction on sampling frequencies by providing a sampling circuit of two input a.c. electricity quantities α,β an A/D converting circuit and an arithmetic circuit.
COPYRIGHT: (C)1978,JPO&Japio
JP116477A 1977-01-11 1977-01-11 Phase difference detector Granted JPS5387277A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP116477A JPS5387277A (en) 1977-01-11 1977-01-11 Phase difference detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP116477A JPS5387277A (en) 1977-01-11 1977-01-11 Phase difference detector

Publications (2)

Publication Number Publication Date
JPS5387277A true JPS5387277A (en) 1978-08-01
JPS562310B2 JPS562310B2 (en) 1981-01-19

Family

ID=11493788

Family Applications (1)

Application Number Title Priority Date Filing Date
JP116477A Granted JPS5387277A (en) 1977-01-11 1977-01-11 Phase difference detector

Country Status (1)

Country Link
JP (1) JPS5387277A (en)

Also Published As

Publication number Publication date
JPS562310B2 (en) 1981-01-19

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