JPS55113958A - Apparatus for measuring electric power - Google Patents

Apparatus for measuring electric power

Info

Publication number
JPS55113958A
JPS55113958A JP2154179A JP2154179A JPS55113958A JP S55113958 A JPS55113958 A JP S55113958A JP 2154179 A JP2154179 A JP 2154179A JP 2154179 A JP2154179 A JP 2154179A JP S55113958 A JPS55113958 A JP S55113958A
Authority
JP
Japan
Prior art keywords
signal
power
multiplification
transmission
display counter
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
JP2154179A
Other languages
Japanese (ja)
Inventor
Ryoji Gamo
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
Original Assignee
Toshiba Corp
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 Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP2154179A priority Critical patent/JPS55113958A/en
Publication of JPS55113958A publication Critical patent/JPS55113958A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To simplify the constitution of an apparatus for measuring electric power by measuring transmission and receiving powers using one apparatus.
CONSTITUTION: A signal obtained by multiplying voltage signals ev, ei by a four- quadrant multiplier 11 becomes positive multiplification signal at point P side and negative multiplification signal at point N side. A polarity discriminator 12 discriminates whether it is during power reception or transmission from the polarity of the multiplification signal. In case of power receiving, a power receiving display counter 16a is selected by a logic gate 13 and selection gates 15a, 15b. Thus, the frequency signal of a dual scope type voltage/frequency converter 14 is counted through the selection gate 15a by the power receiving display counter 16a. In case of power transmission, the frequency signal as the logic output signal of the converter 14 is counted by the power transmission display counter 16b.
COPYRIGHT: (C)1980,JPO&Japio
JP2154179A 1979-02-26 1979-02-26 Apparatus for measuring electric power Pending JPS55113958A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2154179A JPS55113958A (en) 1979-02-26 1979-02-26 Apparatus for measuring electric power

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2154179A JPS55113958A (en) 1979-02-26 1979-02-26 Apparatus for measuring electric power

Publications (1)

Publication Number Publication Date
JPS55113958A true JPS55113958A (en) 1980-09-02

Family

ID=12057828

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2154179A Pending JPS55113958A (en) 1979-02-26 1979-02-26 Apparatus for measuring electric power

Country Status (1)

Country Link
JP (1) JPS55113958A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57147065A (en) * 1981-03-06 1982-09-10 Toshiba Corp Electronic wattmeter
JPS5935154A (en) * 1982-08-24 1984-02-25 Tokyo Electric Power Co Inc:The Electronic type reactive electric energy meter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57147065A (en) * 1981-03-06 1982-09-10 Toshiba Corp Electronic wattmeter
JPH041306B2 (en) * 1981-03-06 1992-01-10 Tokyo Shibaura Electric Co
JPS5935154A (en) * 1982-08-24 1984-02-25 Tokyo Electric Power Co Inc:The Electronic type reactive electric energy meter
JPH0472191B2 (en) * 1982-08-24 1992-11-17 Tokyo Denryoku Kk

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