JP5360754B2 - 三相電源の結線状態判定方法および三相電源の結線状態判定装置 - Google Patents
三相電源の結線状態判定方法および三相電源の結線状態判定装置 Download PDFInfo
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- JP5360754B2 JP5360754B2 JP2009013035A JP2009013035A JP5360754B2 JP 5360754 B2 JP5360754 B2 JP 5360754B2 JP 2009013035 A JP2009013035 A JP 2009013035A JP 2009013035 A JP2009013035 A JP 2009013035A JP 5360754 B2 JP5360754 B2 JP 5360754B2
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- phase
- connection state
- phase power
- voltage signal
- state determination
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
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Description
15 機器本体(検電器あるいは検相器)
16 非接触センサ
17 結線状態判定回路
17c 差電圧生成手段
18 マイクロコンピュータ(結線状態判定手段)
Claims (2)
- 三相電源における各相の相関電圧信号を取得し、各相の電圧信号の差である3種類の差電圧信号を生成し、1周期以上の測定期間継続して各差電圧信号を測定し、三相電源の結線状態に応じて生ずる、各差電圧信号における相対的な振幅レベルの組み合わせである振幅レベルパターンに基づいて設定した結線状態判定条件により、前記測定期間内に測定した各差電圧信号から得られる振幅レベルパターンが対応する結線状態を判定することにより、三相電源の結線状態を判定するようにしたことを特徴とする三相電源の結線状態判定方法。
- 三相電源における各相の相関電圧信号を取得する相信号取得手段と、
前記相信号取得手段により取得した各相の電圧信号の差である3種類の差電圧信号を生成する差電圧信号生成手段と、
前記三相電源の結線状態に応じて生ずる、各差電圧信号における相対的な振幅レベルの組み合わせである振幅レベルパターンに基づいて設定した結線状態判定条件により、前記測定期間内に測定した各差電圧信号から得られる振幅レベルパターンが対応する結線状態を判定することにより、三相電源の結線状態を判定する結線状態判定手段と、
を備えることを特徴とする三相電源の結線状態判定装置。
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JP2009013035A JP5360754B2 (ja) | 2009-01-23 | 2009-01-23 | 三相電源の結線状態判定方法および三相電源の結線状態判定装置 |
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JP2009013035A JP5360754B2 (ja) | 2009-01-23 | 2009-01-23 | 三相電源の結線状態判定方法および三相電源の結線状態判定装置 |
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JP2010172120A JP2010172120A (ja) | 2010-08-05 |
JP5360754B2 true JP5360754B2 (ja) | 2013-12-04 |
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JP2009013035A Active JP5360754B2 (ja) | 2009-01-23 | 2009-01-23 | 三相電源の結線状態判定方法および三相電源の結線状態判定装置 |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2018036170A (ja) * | 2016-09-01 | 2018-03-08 | 日置電機株式会社 | 結線方式検出装置および結線方式検出方法 |
JP2022032325A (ja) * | 2020-08-11 | 2022-02-25 | 株式会社きんでん | 配線状態検知装置 |
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JPS59203967A (ja) * | 1983-05-04 | 1984-11-19 | Hitachi Ltd | 非接地系配電線路の断線検出方式 |
JPS59209020A (ja) * | 1983-05-10 | 1984-11-27 | 三菱電機株式会社 | 欠相検出回路 |
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