JPS584075U - power factor meter - Google Patents
power factor meterInfo
- Publication number
- JPS584075U JPS584075U JP9714781U JP9714781U JPS584075U JP S584075 U JPS584075 U JP S584075U JP 9714781 U JP9714781 U JP 9714781U JP 9714781 U JP9714781 U JP 9714781U JP S584075 U JPS584075 U JP S584075U
- Authority
- JP
- Japan
- Prior art keywords
- power factor
- instrument
- power
- transformer
- detection
- 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
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の力率計の基本口−成を示すブロック図、
第２図は本考案の一実施例による力率計の回路構成を示
すブロック図、第３図ａ −ｆは第２図の各部出力波形
図、第４図は本考案の他の実施例を示すブロック図であ
る。
１・・・計器用変圧器、２・・・計器用変流器、８・・
・移相器、９・・・制御信号発生器、１０・・・開閉器
。
馬１図Figure 1 is a block diagram showing the basic configuration of a conventional power factor meter.
Fig. 2 is a block diagram showing the circuit configuration of a power factor meter according to an embodiment of the present invention, Fig. 3 a - f are output waveform diagrams of each part of Fig. 2, and Fig. 4 shows another embodiment of the invention. FIG. 1... Instrument transformer, 2... Instrument current transformer, 8...
- Phase shifter, 9... Control signal generator, 10... Switch. horse 1 diagram
Claims (1)
及び計器用変流器を備え１．これら計器用変成器の検出
信号に基いて消費電力の力率を計測する力率計において
、上記計器用変成器のいずれか一方の検出出力を％移相
させる移相器と、上記・ 計器用変流器側あ検出出力の
零点通過時にパルス信号を発生する制御信号発生器と、
上記移相器によって上記計器用変成器のいずれか一方の
検出用・ 力が移相されたことに基づいて上記パルス
信号によって導通制御され上記計器用変圧器側の検出出
力から力率に比例した電圧を得る開閉器とを具えたこと
を特徴とする力率計。1. Equipped with an instrument transformer and an instrument current transformer for detecting the load voltage and current consumption of the power supply line. In a power factor meter that measures the power factor of power consumption based on the detection signal of these instrument transformers, a phase shifter that shifts the detected output of either one of the instrument transformers by %; a control signal generator that generates a pulse signal when the current transformer side detection output passes the zero point;
Based on the detection power of either one of the potential transformers being phase shifted by the phase shifter, conduction is controlled by the pulse signal, and the detection output of the potential transformer is proportional to the power factor. A power factor meter characterized by comprising a switch for obtaining voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9714781U JPS584075U (en) | 1981-07-02 | 1981-07-02 | power factor meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9714781U JPS584075U (en) | 1981-07-02 | 1981-07-02 | power factor meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS584075U true JPS584075U (en) | 1983-01-11 |
Family
ID=29891966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9714781U Pending JPS584075U (en) | 1981-07-02 | 1981-07-02 | power factor meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS584075U (en) |
-
1981
- 1981-07-02 JP JP9714781U patent/JPS584075U/en active Pending
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