JPS55113958A - Apparatus for measuring electric power - Google Patents
Apparatus for measuring electric powerInfo
- 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
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
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)
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 |
-
1979
- 1979-02-26 JP JP2154179A patent/JPS55113958A/en active Pending
Cited By (4)
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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