JPS526569A - Digital power measuring unit - Google Patents

Digital power measuring unit

Info

Publication number
JPS526569A
JPS526569A JP8273175A JP8273175A JPS526569A JP S526569 A JPS526569 A JP S526569A JP 8273175 A JP8273175 A JP 8273175A JP 8273175 A JP8273175 A JP 8273175A JP S526569 A JPS526569 A JP S526569A
Authority
JP
Japan
Prior art keywords
measuring unit
product
power measuring
digital power
voltage
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
JP8273175A
Other languages
Japanese (ja)
Inventor
Yoichi Yamazaki
Kazuhiro Sano
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
Original Assignee
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 Ltd filed Critical Hitachi Ltd
Priority to JP8273175A priority Critical patent/JPS526569A/en
Publication of JPS526569A publication Critical patent/JPS526569A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To obtain a digital power measuring unit with which highly accurate and reliable power measurements and measured data transmissions can be performed by sampling the voltage and surren tof a system at a definite cycle, by multiplying the voltage and current information to compute the product, then, by adding the present product and the product of the sampling performed prior to the present by a definite time length to output the digitl values of the effective power and the reactive power of the system.
COPYRIGHT: (C)1977,JPO&Japio
JP8273175A 1975-07-07 1975-07-07 Digital power measuring unit Pending JPS526569A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8273175A JPS526569A (en) 1975-07-07 1975-07-07 Digital power measuring unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8273175A JPS526569A (en) 1975-07-07 1975-07-07 Digital power measuring unit

Publications (1)

Publication Number Publication Date
JPS526569A true JPS526569A (en) 1977-01-19

Family

ID=13782554

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8273175A Pending JPS526569A (en) 1975-07-07 1975-07-07 Digital power measuring unit

Country Status (1)

Country Link
JP (1) JPS526569A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5262068A (en) * 1975-11-17 1977-05-23 Toshiba Corp Electronic watthour meter
JPS5594163A (en) * 1979-01-11 1980-07-17 South Eastern Elec Board Integrating wattmeter
JPS61141941U (en) * 1985-02-20 1986-09-02
JPH01224676A (en) * 1988-03-04 1989-09-07 Tokyo Electric Power Co Inc:The Electronic watthour meter
JPH01224675A (en) * 1988-03-04 1989-09-07 Tokyo Electric Power Co Inc:The Electronic watthour meter

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5262068A (en) * 1975-11-17 1977-05-23 Toshiba Corp Electronic watthour meter
JPS5819068B2 (en) * 1975-11-17 1983-04-15 株式会社東芝 Denshiki Denryokuriyokei
JPS5594163A (en) * 1979-01-11 1980-07-17 South Eastern Elec Board Integrating wattmeter
JPS6442468U (en) * 1979-01-11 1989-03-14
JPS61141941U (en) * 1985-02-20 1986-09-02
JPH01224676A (en) * 1988-03-04 1989-09-07 Tokyo Electric Power Co Inc:The Electronic watthour meter
JPH01224675A (en) * 1988-03-04 1989-09-07 Tokyo Electric Power Co Inc:The Electronic watthour meter

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