JPS62187865U - - Google Patents

Info

Publication number
JPS62187865U
JPS62187865U JP7530786U JP7530786U JPS62187865U JP S62187865 U JPS62187865 U JP S62187865U JP 7530786 U JP7530786 U JP 7530786U JP 7530786 U JP7530786 U JP 7530786U JP S62187865 U JPS62187865 U JP S62187865U
Authority
JP
Japan
Prior art keywords
transformer
auxiliary
voltage signals
current transformer
power
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
JP7530786U
Other languages
Japanese (ja)
Other versions
JPH053991Y2 (en
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 filed Critical
Priority to JP1986075307U priority Critical patent/JPH053991Y2/ja
Publication of JPS62187865U publication Critical patent/JPS62187865U/ja
Application granted granted Critical
Publication of JPH053991Y2 publication Critical patent/JPH053991Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の電子式電力量計の構成図、第２
図は電力潮流を説明するための模式図、第３図は
従来の電子式電力潮流電力量計の構成図、第４図
は本考案に係る電子式電力潮流電力量計の一実施
例を示す構成図、第５図は本考案電力量計の作用
を説明するための図、第６図は本考案の電力量計
の変形例を示す構成図である。 ２０…補助変圧器（Ｐ．Ｔ）、２１…サンプル
ホールド部、２２…Ａ／Ｄ変換回路、２３…補助
変流器（Ｃ．Ｔ）、２４…サンプルホールド部、
２５…Ａ／Ｄ変換回路、２６…潮流判別部、３０
…位相信号発生部、３１…マイクロコンピユータ
、３２…切換スイツチ、３３…売電用表示器、３
４…買電用表示器。 Figure 1 is a configuration diagram of a conventional electronic watt-hour meter, Figure 2
The figure is a schematic diagram for explaining power flow, FIG. 3 is a configuration diagram of a conventional electronic power flow watt-hour meter, and FIG. 4 is an embodiment of an electronic power flow watt-hour meter according to the present invention. FIG. 5 is a diagram for explaining the operation of the watt-hour meter of the present invention, and FIG. 6 is a configuration diagram showing a modification of the watt-hour meter of the present invention. 20... Auxiliary transformer (PT), 21... Sample hold section, 22... A/D conversion circuit, 23... Auxiliary current transformer (C.T), 24... Sample hold section,
25... A/D conversion circuit, 26... Power flow determination unit, 30
... Phase signal generator, 31 ... Microcomputer, 32 ... Changeover switch, 33 ... Power sales display, 3
4...Power purchase display.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 給電線の負荷電圧に比例した第１の電圧信号に
変換する補助変圧器と、給電線の消費電流に比例
した第２の電圧信号に変換する補助変流器と、こ
れらの補助変圧器および補助変流器から出力され
る第１および第２の電圧信号の乗算によつて得ら
れる電力の潮流方向を判別する潮流判別部と、こ
の潮流判別部から出力される判別信号に応動して
前記補助変圧器および前記補助変流器から出力さ
れる第１および第２の電圧信号間の位相を一致さ
せる位相部と、この位相部により位相が一致した
前記補助変圧器および補助変流器から出力される
第１および第２の電圧信号に基づいて電力量を求
める電力演算部とを具備したことを特徴とする電
子式電力潮流電力量計。 an auxiliary transformer for converting into a first voltage signal proportional to the load voltage of the feeder; an auxiliary current transformer for converting into a second voltage signal proportional to the current consumption of the feeder; a power flow determination unit that determines the power flow direction of the power obtained by multiplying the first and second voltage signals output from the current transformer; a phase section that matches the phases between the first and second voltage signals output from the transformer and the auxiliary current transformer; and a phase section that matches the phases of the first and second voltage signals output from the auxiliary transformer and the auxiliary current transformer. What is claimed is: 1. An electronic power flow watt-hour meter, comprising: a power calculation section that calculates the amount of power based on first and second voltage signals.
JP1986075307U 1986-05-21 1986-05-21 Expired - Lifetime JPH053991Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986075307U JPH053991Y2 (en) 1986-05-21 1986-05-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986075307U JPH053991Y2 (en) 1986-05-21 1986-05-21

Publications (2)

Publication Number Publication Date
JPS62187865U true JPS62187865U (en) 1987-11-30
JPH053991Y2 JPH053991Y2 (en) 1993-01-29

Family

ID=30921324

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986075307U Expired - Lifetime JPH053991Y2 (en) 1986-05-21 1986-05-21

Country Status (1)

Country Link
JP (1) JPH053991Y2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09113540A (en) * 1995-10-16 1997-05-02 Sanyo Electric Co Ltd Electric power measuring device of system connecting power source system
WO2011042784A1 (en) * 2009-10-05 2011-04-14 パナソニック電工株式会社 Electric power meter

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55113959A (en) * 1979-02-26 1980-09-02 Toshiba Corp Apparatus for measuring power flow
JPS6138569A (en) * 1984-07-31 1986-02-24 Toshiba Corp Electronic watthour meter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55113959A (en) * 1979-02-26 1980-09-02 Toshiba Corp Apparatus for measuring power flow
JPS6138569A (en) * 1984-07-31 1986-02-24 Toshiba Corp Electronic watthour meter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09113540A (en) * 1995-10-16 1997-05-02 Sanyo Electric Co Ltd Electric power measuring device of system connecting power source system
WO2011042784A1 (en) * 2009-10-05 2011-04-14 パナソニック電工株式会社 Electric power meter
CN102597789A (en) * 2009-10-05 2012-07-18 松下电器产业株式会社 Electric power meter

Also Published As

Publication number Publication date
JPH053991Y2 (en) 1993-01-29

Similar Documents

Publication Publication Date Title
JPS62187865U (en)
JP3068958B2 (en) Electronic watt-hour meter
JPS60146865U (en) Electronic reactive energy meter
JPS63164342U (en)
JPH032268U (en)
JPS60146866U (en) Excess electricity meter
JPS6296583U (en)
JPH02107300U (en)
JPS5956568U (en) Electronic energy meter
JPH0244884U (en)
JPS63138762U (en)
JPS5956570U (en) Generator monitoring and control device
JPS6156514U (en)
JPH01131241U (en)
JPH02150575U (en)
JPH02108113U (en)
JPS6355180U (en)
JPS63164339U (en)
JPH02129998U (en)
JPH01147419U (en)
JPH0447666U (en)
JPS6330300U (en)
JPS58191569U (en) electricity meter
JPS584075U (en) power factor meter
JPS60160036U (en) automatic power factor control device